{"id":3488,"date":"2026-07-30T11:02:50","date_gmt":"2026-07-30T03:02:50","guid":{"rendered":"https:\/\/www.c-adtech.com\/?p=3488"},"modified":"2026-07-30T11:08:34","modified_gmt":"2026-07-30T03:08:34","slug":"degassing-molten-aluminum-complete-guide-to-methods-equipment","status":"publish","type":"post","link":"https:\/\/www.c-adtech.com\/ja\/degassing-molten-aluminum-complete-guide-to-methods-equipment\/","title":{"rendered":"\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306e\u8131\u30ac\u30b9\uff1a\u65b9\u6cd5\u3068\u88c5\u7f6e\u306b\u95a2\u3059\u308b\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306e\u8131\u30ac\u30b9\u3068\u306f\u3001\u92f3\u9020\u524d\u306b\u6db2\u4f53\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u304b\u3089\u6eb6\u89e3\u3057\u305f\u6c34\u7d20\u30ac\u30b9\u3084\u975e\u91d1\u5c5e\u4ecb\u5728\u7269\u3092\u9664\u53bb\u3059\u308b\u5de5\u7a0b\u3067\u3042\u308a\u3001\u73fe\u5728\u5229\u7528\u53ef\u80fd\u306a\u6700\u3082\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001\u56de\u8ee2\u30a4\u30f3\u30da\u30e9\u5f0f\u8131\u30ac\u30b9\u3001\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u3092\u7528\u3044\u305f\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u3001\u304a\u3088\u3073\u30a2\u30eb\u30b4\u30f3\u3084\u7a92\u7d20\u3092\u7528\u3044\u305f\u30e9\u30f3\u30b9\u5f0f\u4e0d\u6d3b\u6027\u30ac\u30b9\u6ce8\u5165\u304c\u6319\u3052\u3089\u308c\u308b\u3002 \u9069\u5207\u306a\u8131\u30ac\u30b9\u51e6\u7406\u3092\u7701\u7565\u3057\u305f\u92f3\u9020\u6240\u3067\u306f\u3001\u6a5f\u68b0\u52a0\u5de5\u3084X\u7dda\u691c\u67fb\u306e\u6bb5\u968e\u3067\u3001\u3042\u308b\u3044\u306f\u3055\u3089\u306b\u60aa\u3044\u5834\u5408\u306b\u306f\u3001\u90e8\u54c1\u304c\u3059\u3067\u306b\u9867\u5ba2\u306b\u51fa\u8377\u3055\u308c\u305f\u5f8c\u306b\u3001\u6c17\u5b54\u6b20\u9665\u304c\u767a\u898b\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u304b\u306d\u307e\u305b\u3093\u3002 \u5f53\u793e\u306f\u9577\u5e74\u306b\u308f\u305f\u308a\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u6eb6\u89e3\u7089\u306e\u73fe\u5834\u3067\u3001\u4f5c\u696d\u54e1\u304c\u6c17\u5b54\u306b\u95a2\u3059\u308b\u30af\u30ec\u30fc\u30e0\u306e\u5bfe\u5fdc\u306b\u8ffd\u308f\u308c\u308b\u69d8\u5b50\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u6839\u672c\u539f\u56e0\u306f\u3001\u307b\u307c\u4f8b\u5916\u306a\u304f\u3001\u91d1\u5c5e\u304c\u92f3\u578b\u306b\u6ce8\u304c\u308c\u308b\u524d\u306e\u6c34\u7d20\u9664\u53bb\u304c\u4e0d\u5341\u5206\u3067\u3042\u3063\u305f\u3053\u3068\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u300c\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u8131\u30ac\u30b9\u30b7\u30b9\u30c6\u30e0\u300d\u306e\u4f7f\u7528\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002 \u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u304a\u898b\u7a4d\u3082\u308a\u306f\u7121\u6599\u3067\u3059\u3002.<\/span><\/p>\n

\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u304c\u6c34\u7d20\u3092\u5438\u53ce\u3059\u308b\u7406\u7531<\/h2>\n

Aluminum has an unusual relationship with hydrogen that most other common casting metals don’t share to the same degree. In its solid state, aluminum holds almost no hydrogen at all. Once it melts, its solubility for hydrogen jumps dramatically, sometimes by a factor of nearly twenty compared to the solid phase at the same temperature. This gap is the entire reason degassing exists as an industry practice.<\/p>\n

\"\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u8131\u30ac\u30b9\u88c5\u7f6e\"
\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u8131\u30ac\u30b9\u88c5\u7f6e<\/figcaption><\/figure>\n

\u6c34\u7d20\u306f\u3001\u4e3b\u306b\u6c34\u5206\u3092\u4ecb\u3057\u3066\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u4e2d\u306b\u4fb5\u5165\u3057\u307e\u3059\u3002 \u5468\u56f2\u306e\u5927\u6c17\u4e2d\u306e\u6c34\u84b8\u6c17\u3001\u30b9\u30af\u30e9\u30c3\u30d7\u539f\u6599\u306b\u9589\u3058\u8fbc\u3081\u3089\u308c\u305f\u6c34\u5206\u3001\u6e7f\u3063\u305f\u8010\u706b\u7269\u30e9\u30a4\u30cb\u30f3\u30b0\u3001\u3055\u3089\u306b\u306f\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306b\u6d78\u3055\u308c\u305f\u5de5\u5177\u306b\u4ed8\u7740\u3057\u305f\u6e7f\u6c17\u307e\u3067\u3082\u304c\u3001\u9ad8\u6e29\u306e\u6db2\u4f53\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3068\u53cd\u5fdc\u3057\u307e\u3059\u3002\u3053\u306e\u53cd\u5fdc\u306b\u3088\u308a\u6c34\u5206\u5b50\u304c\u5206\u89e3\u3055\u308c\u3001\u6c34\u7d20\u539f\u5b50\u304c\u653e\u51fa\u3055\u308c\u3066\u91d1\u5c5e\u306b\u76f4\u63a5\u6eb6\u89e3\u3059\u308b\u4e00\u65b9\u3001\u9178\u7d20\u306f\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3068\u7d50\u5408\u3057\u3066\u9178\u5316\u7269\u3092\u5f62\u6210\u3057\u307e\u3059\u3002.<\/p>\n

\u91d1\u5c5e\u304c\u6db2\u4f53\u306e\u72b6\u614b\u306b\u3042\u308b\u9650\u308a\u3001\u6eb6\u89e3\u3057\u305f\u6c34\u7d20\u306f\u76ee\u306b\u898b\u3048\u306a\u3044\u307e\u307e\u3067\u3059\u3002\u554f\u984c\u306f\u51dd\u56fa\u306e\u904e\u7a0b\u3067\u751f\u3058\u307e\u3059\u3002\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u304c\u51b7\u5374\u3055\u308c\u3001\u6db2\u4f53\u304b\u3089\u56fa\u4f53\u3078\u3068\u5909\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u6c34\u7d20\u306e\u6eb6\u89e3\u5ea6\u304c\u518d\u3073\u6025\u6fc0\u306b\u4f4e\u4e0b\u3057\u3001\u305d\u308c\u307e\u3067\u6eb6\u89e3\u3057\u3066\u3044\u305f\u30ac\u30b9\u304c\u9003\u3052\u5834\u3092\u5931\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002 \u6c34\u7d20\u306f\u6eb6\u6db2\u304b\u3089\u6790\u51fa\u3057\u3001\u6c17\u6ce1\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u3082\u3057\u305d\u308c\u3089\u306e\u6c17\u6ce1\u304c\u51dd\u56fa\u4e2d\u306e\u7d50\u6676\u69cb\u9020\u5185\u306b\u9589\u3058\u8fbc\u3081\u3089\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u591a\u5b54\u6027\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u306f\u92f3\u7269\u5168\u4f53\u306b\u6563\u5728\u3059\u308b\u5fae\u7d30\u306a\u7a7a\u9699\u3067\u3042\u308a\u3001\u30a8\u30f3\u30b8\u30f3\u30d6\u30ed\u30c3\u30af\u3084\u6cb9\u5727\u30cf\u30a6\u30b8\u30f3\u30b0\u306a\u3069\u306e\u90e8\u54c1\u306e\u6a5f\u68b0\u7684\u7279\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u3001\u6c17\u5bc6\u6027\u3092\u640d\u306a\u3046\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
\u6c34\u7d20\u306e\u5438\u53ce\u306b\u5bc4\u4e0e\u3059\u308b\u8981\u56e0<\/th>\n\u5178\u578b\u7684\u306a\u30bd\u30fc\u30b9<\/th>\n<\/tr>\n<\/thead>\n
\u7089\u5185\u96f0\u56f2\u6c17\u306e\u6e7f\u5ea6<\/td>\n\u5927\u6c17\u4e2d\u306e\u6e7f\u5ea6\u3001\u7279\u306b\u6e7f\u5ea6\u306e\u9ad8\u3044\u6c17\u5019\u306b\u304a\u3044\u3066<\/td>\n<\/tr>\n
\u30b9\u30af\u30e9\u30c3\u30d7\u306e\u542b\u6c34\u7387<\/td>\n\u6c34\u3084\u6cb9\u304c\u4ed8\u7740\u3057\u305f\u518d\u751f\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3001\u6d17\u6d44\u3055\u308c\u3066\u3044\u306a\u3044\u524a\u308a\u304f\u305a<\/td>\n<\/tr>\n
\u8010\u706b\u30e9\u30a4\u30cb\u30f3\u30b0\u306e\u542b\u6c34\u7387<\/td>\n\u65b0\u3057\u3044\u3001\u307e\u305f\u306f\u4e7e\u71e5\u304c\u4e0d\u5341\u5206\u306a\u7089\u5185\u5f35\u308a\u6750<\/td>\n<\/tr>\n
\u5de5\u5177\u304a\u3088\u3073\u53d6\u934b\u306e\u6c5a\u67d3<\/td>\n\u6e7f\u5f0f\u3059\u304f\u3044\u53d6\u308a\u5668\u5177\u3001\u4e88\u71b1\u3055\u308c\u3066\u3044\u306a\u3044\u79fb\u9001\u53d6\u934b<\/td>\n<\/tr>\n
\u5408\u91d1\u5316\u306b\u3088\u308b\u4e0d\u7d14\u7269\u6df7\u5165<\/td>\n\u30de\u30b9\u30bf\u30fc\u30a2\u30ed\u30a4\u306e\u30a4\u30f3\u30b4\u30c3\u30c8\u3084\u6dfb\u52a0\u5264\u306b\u4ed8\u7740\u3057\u305f\u6c34\u5206<\/td>\n<\/tr>\n
\u4fdd\u6301\u6e29\u5ea6\u6642\u9593<\/td>\n\u4fdd\u7ba1\u671f\u9593\u3092\u5ef6\u9577\u3059\u308b\u3068\u3001\u5927\u6c17\u4e2d\u306e\u6c34\u5206\u3078\u306e\u66dd\u9732\u304c\u5897\u52a0\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u5c11\u3057\u524d\u3001\u6cbf\u5cb8\u5730\u57df\u306b\u3042\u308b\u30c0\u30a4\u30ab\u30b9\u30c8\u5de5\u5834\u3068\u4ed5\u4e8b\u3092\u3059\u308b\u4e2d\u3067\u3001\u8208\u5473\u6df1\u3044\u3053\u3068\u306b\u6c17\u3065\u304d\u307e\u3057\u305f\u3002\u305d\u306e\u5de5\u5834\u3067\u306f\u3001\u6bce\u5e74\u96e8\u5b63\u306b\u306a\u308b\u3068\u3001\u307e\u308b\u3067\u6642\u8a08\u4ed5\u639b\u3051\u306e\u3088\u3046\u306b\u6c17\u5b54\u7387\u306b\u95a2\u3059\u308b\u82e6\u60c5\u304c\u8457\u3057\u304f\u6025\u5897\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u5468\u56f2\u306e\u6e7f\u5ea6\u304c\u92f3\u9020\u7528\u6750\u6599\u306e\u4fdd\u7ba1\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u3044\u308b\u3068\u8ab0\u304b\u304c\u6c17\u3065\u304f\u307e\u3067\u306b\u306f\u3001\u6570\u30f6\u6708\u3092\u8981\u3057\u307e\u3057\u305f\u3002 \u3057\u304b\u3057\u3001\u30b9\u30af\u30e9\u30c3\u30d7\u306e\u4fdd\u7ba1\u5834\u6240\u3092\u5c4b\u5185\u306b\u79fb\u3057\u3001\u518d\u751f\u6750\u6599\u306e\u4e7e\u71e5\u5de5\u7a0b\u3092\u8ffd\u52a0\u3057\u305f\u3068\u3053\u308d\u3001\u308f\u305a\u304b2\u751f\u7523\u30b5\u30a4\u30af\u30eb\u4ee5\u5185\u306b\u4e0d\u826f\u7387\u306f\u4f4e\u4e0b\u3057\u307e\u3057\u305f\u3002.<\/p>\n

What Happens When Aluminum Isn’t Properly Degassed<\/h2>\n

\u8131\u30ac\u30b9\u5de5\u7a0b\u3092\u7701\u7565\u3057\u305f\u308a\u3001\u4e0d\u9069\u5207\u306b\u5b9f\u65bd\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u3044\u304f\u3064\u304b\u306e\u6e2c\u5b9a\u53ef\u80fd\u306a\u5f62\u3067\u305d\u306e\u5f71\u97ff\u304c\u73fe\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u7269\u3092\u8a55\u4fa1\u3059\u308b\u8cfc\u5165\u8005\u306f\u3001\u5177\u4f53\u7684\u306b\u3069\u306e\u3088\u3046\u306a\u70b9\u306b\u6ce8\u76ee\u3059\u3079\u304d\u304b\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

Gas porosity appears as small, generally round voids distributed somewhat evenly through the casting cross-section, visible under X-ray inspection or after machining cuts into the surface. This differs from shrinkage porosity, which tends to look more irregular and concentrated near thick sections, so distinguishing between the two matters when diagnosing a defect’s root cause.<\/p>\n

\u6a5f\u68b0\u7684\u5f37\u5ea6\u306e\u4f4e\u4e0b\u306f\u3001\u591a\u5b54\u6027\u304b\u3089\u76f4\u63a5\u751f\u3058\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u7a7a\u9699\u304c\u5fdc\u529b\u96c6\u4e2d\u70b9\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u8377\u91cd\u304c\u304b\u304b\u308b\u3068\u305d\u3053\u3067\u4e80\u88c2\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u7279\u306b\u75b2\u52b4\u5bff\u547d\u3078\u306e\u5f71\u97ff\u306f\u751a\u5927\u3067\u3042\u308a\u3001\u90e8\u54c1\u304c\u521d\u671f\u306e\u9759\u7684\u5f37\u5ea6\u8a66\u9a13\u306b\u306f\u5408\u683c\u3057\u3066\u3082\u3001\u81ea\u52d5\u8eca\u3084\u822a\u7a7a\u5b87\u5b99\u5206\u91ce\u3067\u4e00\u822c\u7684\u306a\u7e70\u8fd4\u3057\u8377\u91cd\u6761\u4ef6\u4e0b\u3067\u306f\u65e9\u671f\u306b\u7834\u640d\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30b7\u30e7\u30f3\u30cf\u30a6\u30b8\u30f3\u30b0\u3001\u30b7\u30ea\u30f3\u30c0\u30fc\u30d8\u30c3\u30c9\u3001\u6cb9\u5727\u90e8\u54c1\u306a\u3069\u3001\u6d41\u4f53\u3084\u30ac\u30b9\u3092\u4fdd\u6301\u3059\u308b\u5f79\u5272\u3092\u6301\u3064\u90e8\u54c1\u306b\u304a\u3044\u3066\u3001\u5727\u529b\u6f0f\u308c\u306f\u91cd\u5927\u306a\u6545\u969c\u30e2\u30fc\u30c9\u3068\u306a\u308a\u307e\u3059\u3002\u5fae\u7d30\u306a\u76f8\u4e92\u9023\u7d50\u3057\u305f\u6c17\u5b54\u3067\u3042\u3063\u3066\u3082\u3001\u6f0f\u308c\u7d4c\u8def\u3068\u306a\u308a\u3001\u5727\u529b\u8a66\u9a13\u306e\u969b\u306b\u5373\u5ea7\u306b\u4e0d\u5408\u683c\u3068\u306a\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u8868\u9762\u4ed5\u4e0a\u3052\u306e\u554f\u984c\u3082\u3001\u4e0d\u5341\u5206\u306a\u8131\u30ac\u30b9\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u51dd\u56fa\u4e2d\u306b\u8868\u9762\u306b\u6d6e\u4e0a\u3059\u308b\u6c17\u6ce1\u304c\u30d4\u30f3\u30db\u30fc\u30eb\u3084\u81a8\u308c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u88c5\u98fe\u7528\u3084\u76ee\u306b\u898b\u3048\u308b\u92f3\u9020\u90e8\u54c1\u306e\u5916\u89b3\u3092\u640d\u306a\u3046\u305f\u3081\u3067\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n
\u6b20\u9665\u306e\u7a2e\u985e<\/th>\n\u5916\u89b3\u4e0a\u306e\u7279\u5fb4<\/th>\n\u5178\u578b\u7684\u306a\u6839\u672c\u539f\u56e0<\/th>\n<\/tr>\n<\/thead>\n
\u30ac\u30b9\u6c17\u5b54\u7387<\/td>\n\u5c0f\u3055\u304f\u3001\u4e38\u304f\u3001\u5747\u4e00\u306b\u5206\u5e03\u3057\u305f\u7a7a\u9699<\/td>\n\u51dd\u56fa\u904e\u7a0b\u306b\u304a\u3051\u308b\u6eb6\u5b58\u6c34\u7d20\u306e\u653e\u51fa<\/td>\n<\/tr>\n
\u53ce\u7e2e\u6c17\u5b54\u7387<\/td>\n\u4e0d\u898f\u5247\u306a\u5f62\u72b6\u3067\u3001\u539a\u307f\u306e\u3042\u308b\u90e8\u5206\u306b\u96c6\u4e2d\u3057\u3066\u3044\u308b<\/td>\n\u51dd\u56fa\u6642\u306e\u7d66\u6c17\u304c\u4e0d\u5341\u5206\u3067\u3042\u3063\u305f\u3053\u3068\uff08\u30ac\u30b9\u95a2\u9023\u3067\u306f\u306a\u3044\uff09<\/td>\n<\/tr>\n
\u30d4\u30f3\u30db\u30fc\u30eb<\/td>\n\u5fae\u7d30\u306a\u8868\u9762\u306e\u51f9\u307f\u304c\u3001\u3057\u3070\u3057\u3070\u7fa4\u751f\u3057\u3066\u3044\u308b<\/td>\n\u92f3\u9020\u8868\u9762\u4ed8\u8fd1\u304b\u3089\u6c34\u7d20\u304c\u6f0f\u308c\u51fa\u3066\u3044\u308b<\/td>\n<\/tr>\n
\u6fc0\u3057\u3044<\/td>\n\u71b1\u51e6\u7406\u5f8c\u306b\u751f\u3058\u308b\u8868\u9762\u306e\u81a8\u3089\u307f<\/td>\n\u6eb6\u4f53\u51e6\u7406\u4e2d\u306b\u81a8\u5f35\u3059\u308b\u5730\u4e2d\u30ac\u30b9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u9020\u6240\u3067\u7528\u3044\u3089\u308c\u308b\u4e3b\u306a\u8131\u30ac\u30b9\u65b9\u6cd5<\/h2>\n

\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u304b\u3089\u6c34\u7d20\u3092\u9664\u53bb\u3059\u308b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7570\u306a\u308b\u624b\u6cd5\u304c\u5b58\u5728\u3057\u3001\u307b\u3068\u3093\u3069\u306e\u92f3\u9020\u5de5\u5834\u306f\u3001\u751f\u7523\u91cf\u3001\u4e88\u7b97\u3001\u304a\u3088\u3073\u6700\u7d42\u88fd\u54c1\u306b\u6c42\u3081\u3089\u308c\u308b\u30ac\u30b9\u9664\u53bb\u306e\u7cbe\u5ea6\u30ec\u30d9\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u3044\u305a\u308c\u304b\u306e\u624b\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\"\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u9020\u6240\u3067\u4e3b\u306b\u7528\u3044\u3089\u308c\u308b\u8131\u30ac\u30b9\u65b9\u6cd5\u306b\u306f\u3001\u4e0d\u6d3b\u6027\u30ac\u30b9\u6cd5\u3001\u56de\u8ee2\u5f0f\u6cd5\u3001\u30d5\u30e9\u30c3\u30af\u30b9\u6cd5\u3001\u771f\u7a7a\u6cd5\u3001\u304a\u3088\u3073\u30bf\u30d6\u30ec\u30c3\u30c8\u8131\u30ac\u30b9\u6cd5\u306a\u3069\u304c\u3042\u308b\u3002\"
\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u9020\u6240\u3067\u4e3b\u306b\u7528\u3044\u3089\u308c\u308b\u8131\u30ac\u30b9\u65b9\u6cd5\u306b\u306f\u3001\u4e0d\u6d3b\u6027\u30ac\u30b9\u6cd5\u3001\u56de\u8ee2\u5f0f\u6cd5\u3001\u30d5\u30e9\u30c3\u30af\u30b9\u6cd5\u3001\u771f\u7a7a\u6cd5\u3001\u304a\u3088\u3073\u30bf\u30d6\u30ec\u30c3\u30c8\u8131\u30ac\u30b9\u6cd5\u306a\u3069\u304c\u3042\u308b\u3002<\/figcaption><\/figure>\n
\n\n\n\n\n\n\n\n\n\n
\u8131\u6c17\u65b9\u6cd5<\/th>\n\u6a19\u6e96\u52b9\u7387<\/th>\n\u6700\u9069\u306a\u751f\u7523\u898f\u6a21<\/th>\n<\/tr>\n<\/thead>\n
\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u306b\u3088\u308b\u8131\u6c17<\/td>\n\u9ad8\uff08\u6eb6\u5b58\u6c34\u7d20\u309260%\uff5e85%\u9664\u53bb\uff09<\/td>\n\u4e2d\u898f\u6a21\u304b\u3089\u5927\u898f\u6a21\u306e\u92f3\u9020\u5de5\u5834\u3001\u9023\u7d9a\u64cd\u696d<\/td>\n<\/tr>\n
\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u3092\u7528\u3044\u305f\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9<\/td>\n\u975e\u5e38\u306b\u9ad8\u3044\uff08\u6700\u592790%\uff09<\/td>\n\u5927\u91cf\u751f\u7523\u578b\u92f3\u9020\u30e9\u30a4\u30f3\u3001\u81ea\u52d5\u8eca\u90e8\u54c1\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc<\/td>\n<\/tr>\n
\u30e9\u30f3\u30b9\u6ce8\u5165<\/td>\n\u4e2d\u7a0b\u5ea6\uff0840%\uff5e60%\uff09<\/td>\n\u5c0f\u898f\u6a21\u306a\u92f3\u9020\u6240\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u3001\u4f4e\u4e88\u7b97<\/td>\n<\/tr>\n
\u30d5\u30e9\u30c3\u30af\u30b9\u9320<\/td>\n\u4f4e\uff5e\u4e2d\u7a0b\u5ea6\uff0830%\uff5e50%\uff09<\/td>\n\u5c0f\u898f\u6a21\u306a\u5e97\u8217\u3001\u88dc\u52a9\u7642\u6cd5<\/td>\n<\/tr>\n
\u771f\u7a7a\u8131\u6c17<\/td>\n\u975e\u5e38\u306b\u9ad8\u3044\uff0890%+\uff09<\/td>\n\u822a\u7a7a\u5b87\u5b99\u5206\u91ce\u5411\u3051\u3001\u9ad8\u4fe1\u983c\u6027\u92f3\u9020\u54c1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u3044\u305a\u308c\u306e\u65b9\u6cd5\u3082\u3001\u540c\u3058\u57fa\u672c\u7684\u306a\u7269\u7406\u7684\u539f\u7406\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u4e0d\u6d3b\u6027\u30ac\u30b9\u307e\u305f\u306f\u53cd\u5fdc\u6027\u30ac\u30b9\u306e\u5fae\u7d30\u306a\u6c17\u6ce1\u3092\u6eb6\u878d\u91d1\u5c5e\u4e2d\u306b\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u5404\u6c17\u6ce1\u5185\u90e8\u306e\u6c34\u7d20\u5206\u5727\u3092\u5468\u56f2\u306e\u91d1\u5c5e\u3088\u308a\u3082\u4f4e\u304f\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6eb6\u878d\u91d1\u5c5e\u4e2d\u3092\u4e0a\u6607\u3059\u308b\u6c17\u6ce1\u306e\u4e2d\u306b\u3001\u6eb6\u89e3\u3057\u3066\u3044\u305f\u6c34\u7d20\u304c\u62e1\u6563\u3057\u3001\u6c17\u6ce1\u304c\u8868\u9762\u306b\u5230\u9054\u3059\u308b\u3068\u3001\u6c34\u7d20\u306f\u6c17\u6ce1\u3068\u3068\u3082\u306b\u653e\u51fa\u3055\u308c\u307e\u3059\u3002 \u5404\u624b\u6cd5\u306e\u9055\u3044\u306f\u3001\u6c17\u6ce1\u306e\u5927\u304d\u3055\u3001\u5206\u5e03\u3001\u304a\u3088\u3073\u63a5\u89e6\u6642\u9593\u306b\u3042\u308a\u3001\u3053\u308c\u3089\u3059\u3079\u3066\u304c\u6c34\u7d20\u304c\u5b9f\u969b\u306b\u3069\u308c\u3060\u3051\u52b9\u7387\u7684\u306b\u9664\u53bb\u3055\u308c\u308b\u304b\u3092\u6c7a\u5b9a\u3065\u3051\u308b\u3002.<\/p>\n

\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u5f0f\u8131\u6c17\u88c5\u7f6e\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066<\/h2>\n

\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u30fc\u306b\u3088\u308b\u8131\u6c17\u306f\u3001\u4e2d\u898f\u6a21\u304a\u3088\u3073\u5927\u898f\u6a21\u306e\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u9020\u6240\u306b\u304a\u3044\u3066\u4e3b\u529b\u624b\u6cd5\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u305d\u308c\u306b\u306f\u5341\u5206\u306a\u7406\u7531\u304c\u3042\u308b\u3002 \u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30a4\u30f3\u30da\u30e9\u30fc\u30d8\u30c3\u30c9\u3092\u5099\u3048\u305f\u56de\u8ee2\u30b7\u30e3\u30d5\u30c8\u304c\u6eb6\u6e6f\u4e2d\u306b\u6d78\u6f2c\u3055\u308c\u3001\u5236\u5fa1\u3055\u308c\u305f\u901f\u5ea6\u3067\u56de\u8ee2\u3057\u306a\u304c\u3089\u3001\u4e0d\u6d3b\u6027\u30ac\u30b9\u304c\u30b7\u30e3\u30d5\u30c8\u5185\u3092\u6d41\u308c\u4e0b\u308a\u3001\u30a4\u30f3\u30da\u30e9\u30fc\u4e0a\u306e\u5c0f\u3055\u306a\u30dd\u30fc\u30c8\u304b\u3089\u6392\u51fa\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u56de\u8ee2\u306b\u3088\u308a\u3001\u30ac\u30b9\u306f\u6975\u3081\u3066\u5fae\u7d30\u306a\u6c17\u6ce1\u306b\u7d30\u65ad\u3055\u308c\u3001\u4e00\u7b87\u6240\u306b\u96c6\u4e2d\u3057\u3066\u4e0a\u6607\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6eb6\u6e6f\u5168\u4f53\u306b\u5206\u6563\u3055\u308c\u307e\u3059\u3002.<\/p>\n

\u3053\u306e\u5fae\u7d30\u3067\u5747\u4e00\u306a\u6c17\u6ce1\u306e\u5206\u5e03\u3053\u305d\u304c\u3001\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u30fc\u65b9\u5f0f\u3092\u5358\u7d14\u306a\u30e9\u30f3\u30b9\u6ce8\u5165\u3088\u308a\u3082\u52b9\u7387\u7684\u306b\u3057\u3066\u3044\u308b\u8981\u56e0\u3067\u3059\u3002\u6c17\u6ce1\u304c\u5c0f\u3055\u3051\u308c\u3070\u5c0f\u3055\u3044\u307b\u3069\u3001\u6c34\u7d20\u306e\u62e1\u6563\u306b\u5229\u7528\u3067\u304d\u308b\u7dcf\u8868\u9762\u7a4d\u304c\u5897\u3048\u3001\u5206\u5e03\u304c\u5747\u4e00\u3067\u3042\u308c\u3070\u3042\u308b\u307b\u3069\u3001\u6ce8\u5165\u70b9\u306e\u3059\u3050\u5468\u8fba\u3060\u3051\u3067\u306a\u304f\u3001\u6eb6\u878d\u7269\u5168\u4f53\u304c\u51e6\u7406\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u30a4\u30f3\u30da\u30e9\u306e\u8a2d\u8a08\u306f\u3001\u3053\u305320\u5e74\u307b\u3069\u306e\u9593\u306b\u8457\u3057\u304f\u9032\u5316\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u521d\u671f\u306e\u8a2d\u8a08\u3067\u306f\u5358\u7d14\u306a\u30d1\u30c9\u30eb\u5f62\u72b6\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u4ee3\u306e\u30a4\u30f3\u30da\u30e9\u306f\u3001\u8a08\u7b97\u6d41\u4f53\u529b\u5b66\uff08CFD\uff09\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u3088\u3063\u3066\u6700\u9069\u5316\u3055\u308c\u305f\u3001\u8907\u6570\u306e\u30ac\u30b9\u6392\u51fa\u53e3\u3092\u5099\u3048\u305f\u8907\u96d1\u306a\u5f62\u72b6\u3092\u7279\u5fb4\u3068\u3057\u3066\u3044\u307e\u3059\u3002 \u6750\u6599\u3082\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u30a4\u30f3\u30da\u30e9\u306e\u30b7\u30e3\u30d5\u30c8\u3084\u30d8\u30c3\u30c9\u306e\u591a\u304f\u306f\u3001\u901a\u5e38680\u00b0C\u304b\u3089750\u00b0C\u306e\u6e29\u5ea6\u7bc4\u56f2\u3067\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3068\u9577\u6642\u9593\u63a5\u89e6\u3057\u3066\u3082\u8010\u98df\u6027\u3092\u767a\u63ee\u3059\u308b\u3001\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u307e\u305f\u306f\u30bb\u30e9\u30df\u30c3\u30af\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u65bd\u3057\u305f\u8907\u5408\u6750\u6599\u3067\u4f5c\u3089\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u90e8\u54c1<\/th>\n\u6a5f\u80fd<\/th>\n\u4e00\u822c\u7684\u306a\u7d20\u6750<\/th>\n<\/tr>\n<\/thead>\n
\u99c6\u52d5\u30e2\u30fc\u30bf\u30fc<\/td>\n\u56de\u8ee2\u901f\u5ea6\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u901a\u5e38\u3001200\uff5e600 RPM\u3067\u3059\u3002<\/td>\n\u53ef\u5909\u5468\u6ce2\u6570\u99c6\u52d5\u88c5\u7f6e\u3092\u5099\u3048\u305f\u96fb\u6c17\u30e2\u30fc\u30bf\u30fc<\/td>\n<\/tr>\n
\u30b7\u30e3\u30d5\u30c8<\/td>\n\u30ac\u30b9\u6e90\u304b\u3089\u30a4\u30f3\u30da\u30e9\u30d8\u30c3\u30c9\u307e\u3067\u30ac\u30b9\u3092\u9001\u308a\u8fbc\u3080<\/td>\n\u9ed2\u925b\u3001\u30bb\u30e9\u30df\u30c3\u30af\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u92fc<\/td>\n<\/tr>\n
\u30a4\u30f3\u30da\u30e9\u30d8\u30c3\u30c9<\/td>\n\u30ac\u30b9\u3092\u5fae\u7d30\u306a\u6c17\u6ce1\u306b\u5206\u6563\u3055\u305b\u308b<\/td>\n\u9ed2\u925b\u30fb\u70ad\u5316\u30b1\u30a4\u7d20\u8907\u5408\u6750<\/td>\n<\/tr>\n
\u30ac\u30b9\u6d41\u91cf\u8abf\u7bc0\u5668<\/td>\n\u4e0d\u6d3b\u6027\u30ac\u30b9\u306e\u4f53\u7a4d\u3068\u5727\u529b\u3092\u8abf\u6574\u3059\u308b<\/td>\n\u30ed\u30bf\u30e1\u30fc\u30bf\u30fc\u307e\u305f\u306f\u8cea\u91cf\u6d41\u91cf\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc<\/td>\n<\/tr>\n
\u8010\u706b\u30b9\u30ea\u30fc\u30d6<\/td>\n\u30b7\u30e3\u30d5\u30c8\u3092\u71b1\u304a\u3088\u3073\u5316\u5b66\u7684\u306a\u6469\u8017\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059<\/td>\n\u9ad8\u30a2\u30eb\u30df\u30ca\u8010\u706b\u7269<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

We worked alongside a foundry technician who described rotary degassing units as “the difference between stirring sugar into cold water versus hot water”, the mechanical action combined with fine dispersion just moves things along far faster than passive gas injection ever could. Treatment times with a rotary unit typically run between 5 and 15 minutes for a standard holding furnace batch, compared to 15 to 30 minutes with a simple lance for similar hydrogen reduction.<\/p>\n

\u3053\u3061\u3089\u3082\u304a\u8aad\u307f\u304f\u3060\u3055\u3044\uff1a \u30ed\u30fc\u30bf\u30ea\u30fc\u8131\u6c17\u30a2\u30eb\u30df\uff1a\u9ad8\u52b9\u7387\u30e6\u30cb\u30c3\u30c8\u3001\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u30ed\u30fc\u30bf\u30fc\u4ed5\u69d8<\/a><\/p>\n

\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u30b7\u30b9\u30c6\u30e0\u3068\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u6280\u8853<\/h2>\n

\u9023\u7d9a\u92f3\u9020\u5de5\u7a0b\u3001\u7279\u306b\u5927\u91cf\u751f\u7523\u306e\u30c0\u30a4\u30ab\u30b9\u30c8\u3084\u9023\u7d9a\u30b9\u30c8\u30ea\u30c3\u30d7\u92f3\u9020\u30e9\u30a4\u30f3\u3092\u7a3c\u50cd\u3055\u305b\u308b\u81ea\u52d5\u8eca\u90e8\u54c1\u30e1\u30fc\u30ab\u30fc\u306b\u304a\u3044\u3066\u306f\u3001\u91d1\u5c5e\u79fb\u9001\u30c8\u30e9\u30d5\u306b\u76f4\u63a5\u7d44\u307f\u8fbc\u307e\u308c\u305f\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u88c5\u7f6e\u304c\u3001\u6700\u9ad8\u306e\u51e6\u7406\u52b9\u7387\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002.<\/p>\n

\"\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u30b7\u30b9\u30c6\u30e0\u306e\u8131\u30ac\u30b9\u30dc\u30c3\u30af\u30b9\u306e\u5c55\u793a\"
Display of Inline Degassing Systems’ Degassing Box<\/figcaption><\/figure>\n

\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u6280\u8853\u306f\u3001\u92f3\u9020\u6a5f\u3078\u3068\u6d41\u308c\u308b\u91d1\u5c5e\u304c\u901a\u904e\u3059\u308b\u51e6\u7406\u5ba4\u306e\u5e95\u9762\u307e\u305f\u306f\u5074\u58c1\u306b\u3001\u5fae\u7d30\u306a\u76f8\u4e92\u63a5\u7d9a\u30c1\u30e3\u30cd\u30eb\u3092\u6301\u3064\u30bb\u30e9\u30df\u30c3\u30af\u88fd\u30d7\u30e9\u30b0\u3092\u57cb\u3081\u8fbc\u3080\u3053\u3068\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002 \u30d7\u30e9\u30b0\u3092\u901a\u3057\u3066\u9001\u308a\u8fbc\u307e\u308c\u305f\u4e0d\u6d3b\u6027\u30ac\u30b9\u306f\u3001\u6975\u3081\u3066\u5fae\u7d30\u3067\u5747\u4e00\u306a\u6c17\u6ce1\u306e\u30ab\u30fc\u30c6\u30f3\u3068\u3057\u3066\u653e\u51fa\u3055\u308c\u3001\u6d41\u308c\u8fbc\u3080\u91d1\u5c5e\u304c\u3053\u308c\u3092\u9023\u7d9a\u7684\u306b\u901a\u904e\u3057\u307e\u3059\u3002\u91d1\u5c5e\u304c\u9759\u6b62\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u304f\u6d41\u52d5\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u306e\u65b9\u6cd5\u3067\u306f\u5c02\u7528\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u30b5\u30a4\u30af\u30eb\u3092\u5fc5\u8981\u3068\u305b\u305a\u306b\u5927\u91cf\u306e\u51e6\u7406\u304c\u53ef\u80fd\u3067\u3042\u308a\u3001\u307e\u3055\u306b\u3053\u306e\u70b9\u304c\u5927\u91cf\u751f\u7523\u3092\u884c\u3046\u30e1\u30fc\u30ab\u30fc\u306b\u652f\u6301\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u3067\u3059\u3002.<\/p>\n

\u3053\u3053\u3067\u306e\u6700\u5927\u306e\u5229\u70b9\u306f\u3001\u4e00\u8cab\u6027\u3067\u3059\u3002\u51e6\u7406\u30c1\u30e3\u30f3\u30d0\u30fc\u3092\u901a\u904e\u3059\u308b\u91d1\u5c5e\u306e\u5404\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u8131\u30ac\u30b9\u6c17\u6ce1\u306b\u5b9f\u8cea\u7684\u306b\u5747\u4e00\u306b\u3055\u3089\u3055\u308c\u308b\u305f\u3081\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306e\u64cd\u4f5c\u65b9\u6cd5\u306b\u3070\u3089\u3064\u304d\u304c\u3042\u308b\u5834\u5408\u306b\u751f\u3058\u304c\u3061\u306a\u3001\u624b\u52d5\u30e9\u30f3\u30b9\u51e6\u7406\u3084\u56de\u8ee2\u30a4\u30f3\u30da\u30e9\u30fc\u51e6\u7406\u306b\u898b\u3089\u308c\u308b\u30ed\u30c3\u30c8\u9593\u306e\u3070\u3089\u3064\u304d\u304c\u89e3\u6d88\u3055\u308c\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u30a4\u30f3\u30e9\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u6a5f\u80fd<\/th>\n\u30d9\u30cd\u30d5\u30a3\u30c3\u30c8<\/th>\n<\/tr>\n<\/thead>\n
\u9023\u7d9a\u6d41\u51e6\u7406<\/td>\n\u30d0\u30c3\u30c1\u5f0f\u8131\u30ac\u30b9\u5de5\u7a0b\u3067\u306f\u751f\u7523\u505c\u6b62\u306f\u767a\u751f\u3057\u306a\u3044<\/td>\n<\/tr>\n
\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u306b\u3088\u308b\u6c17\u6ce1\u306e\u5747\u4e00\u306a\u5206\u5e03<\/td>\n\u3059\u3079\u3066\u306e\u30d0\u30c3\u30c1\u306b\u304a\u3044\u3066\u4e00\u8cab\u3057\u305f\u6c34\u7d20\u9664\u53bb<\/td>\n<\/tr>\n
\u4e00\u4f53\u578b\u308d\u904e\u30b7\u30b9\u30c6\u30e0<\/td>\n\u4e0d\u7d14\u7269\u306e\u9664\u53bb\u306b\u306f\u3001\u30bb\u30e9\u30df\u30c3\u30af\u30d5\u30a9\u30fc\u30e0\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044<\/td>\n<\/tr>\n
\u30ac\u30b9\u306e\u6d41\u91cf\u5236\u5fa1\u306e\u81ea\u52d5\u5316<\/td>\n\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306b\u3088\u308b\u624b\u52d5\u8abf\u6574\u3078\u306e\u4f9d\u5b58\u5ea6\u3092\u4f4e\u6e1b\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u30ed\u30fc\u30bf\u30ea\u30fc\u5f0f\u30e6\u30cb\u30c3\u30c8\u3088\u308a\u3082\u8a2d\u7f6e\u9762\u7a4d\u304c\u5c0f\u3055\u3044<\/td>\n\u72ed\u3044\u751f\u7523\u30e9\u30a4\u30f3\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3082\u9069\u5408\u3057\u307e\u3059<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u305d\u306e\u4ee3\u511f\u3068\u3057\u3066\u3001\u521d\u671f\u6295\u8cc7\u30b3\u30b9\u30c8\u3068\u3001\u3053\u306e\u88c5\u7f6e\u3092\u65e2\u5b58\u306e\u751f\u7523\u30e9\u30a4\u30f3\u306b\u7d44\u307f\u8fbc\u3080\u969b\u306e\u8907\u96d1\u3055\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3082\u3068\u3082\u3068\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u6a5f\u80fd\u3092\u60f3\u5b9a\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u306a\u3044\u30d7\u30e9\u30f3\u30c8\u306b\u3001\u5f8c\u304b\u3089\u3053\u306e\u6a5f\u80fd\u3092\u5f8c\u4ed8\u3051\u3059\u308b\u5834\u5408\u3001\u30c8\u30e9\u30d5\u306e\u518d\u8a2d\u8a08\u3084\u8a2d\u7f6e\u306b\u4f34\u3046\u7a3c\u50cd\u505c\u6b62\u6642\u9593\u3092\u8003\u616e\u3059\u308b\u3068\u3001\u305d\u306e\u8cbb\u7528\u306f\u88c5\u7f6e\u81ea\u4f53\u306e\u4fa1\u683c\u3092\u4e0a\u56de\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u30e9\u30f3\u30b9\u8131\u30ac\u30b9\u3068\u305d\u306e\u9650\u754c<\/h2>\n

Lance degassing represents the simplest and oldest method still in active use, particularly among smaller foundries and job shops that can’t justify the capital cost of rotary or inline systems. A metal or ceramic lance with holes drilled along its length gets submerged into the melt, and inert gas flows through under pressure, bubbling up through the metal.<\/p>\n

\u660e\u3089\u304b\u306a\u5236\u9650\u306f\u6c17\u6ce1\u306e\u5927\u304d\u3055\u3067\u3059\u3002 \u56de\u8ee2\u30a4\u30f3\u30da\u30e9\u306e\u3088\u3046\u306a\u6a5f\u68b0\u7684\u306a\u305b\u3093\u65ad\u4f5c\u7528\u304c\u306a\u3044\u5834\u5408\u3001\u30e9\u30f3\u30b9\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u6c17\u6ce1\u306f\u8457\u3057\u304f\u5927\u304d\u304f\u306a\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6c34\u7d20\u62e1\u6563\u306e\u305f\u3081\u306e\u7dcf\u8868\u9762\u7a4d\u304c\u6e1b\u5c11\u3059\u308b\u3053\u3068\u3001\u304a\u3088\u3073\u6eb6\u878d\u7269\u4e2d\u3067\u306e\u6c17\u6ce1\u306e\u4e0a\u6607\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u6c17\u6ce1\u304c\u8868\u9762\u306b\u5230\u9054\u3057\u3066\u9003\u3052\u3066\u3057\u307e\u3046\u524d\u306b\u6c34\u7d20\u304c\u79fb\u884c\u3059\u308b\u6a5f\u4f1a\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u5168\u4f53\u7684\u306a\u52b9\u7387\u304c\u4f4e\u4e0b\u3057\u3001\u540c\u7b49\u306e\u6c34\u7d20\u9664\u53bb\u52b9\u679c\u3092\u5f97\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u51e6\u7406\u6642\u9593\u304c\u9577\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n

Lance degassing still has legitimate use cases though. For smaller batch sizes, occasional touch-up treatment, or operations where capital budget genuinely doesn’t support more sophisticated equipment, a well-operated lance system combined with good furnace hygiene practices can produce acceptable results for less demanding casting applications.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u30e9\u30f3\u30b9\u8131\u30ac\u30b9\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805<\/th>\n\u8a73\u7d30<\/th>\n<\/tr>\n<\/thead>\n
\u4ee3\u8868\u7684\u306a\u6c17\u6ce1\u5f84<\/td>\n5mm\uff5e15mm\uff08\u5bfe\u3057\u3066\u3001\u30ed\u30fc\u30bf\u30ea\u30fc\u5f0f\u30b7\u30b9\u30c6\u30e0\u3067\u306f1mm\u672a\u6e80\uff09<\/td>\n<\/tr>\n
\u6a19\u6e96\u30d0\u30c3\u30c1\u306e\u51e6\u7406\u6642\u9593<\/td>\n15\u5206\u304b\u308930\u5206<\/td>\n<\/tr>\n
\u30ed\u30fc\u30bf\u30ea\u30fc\u5f0f\u30b7\u30b9\u30c6\u30e0\u3068\u6bd4\u8f03\u3057\u305f\u8cc7\u672c\u30b3\u30b9\u30c8<\/td>\n\u540c\u7b49\u306e\u56de\u8ee2\u6a5f\u5668\u3067\u7d0420%\uff5e30%\u76f8\u5f53<\/td>\n<\/tr>\n
\u6700\u9ad8\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/td>\n\u5c0f\u30ed\u30c3\u30c8\u30fb\u5c11\u91cf\u751f\u7523\u3001\u4e88\u7b97\u306b\u5236\u7d04\u306e\u3042\u308b\u4e8b\u696d<\/td>\n<\/tr>\n
\u3088\u304f\u3042\u308b\u4e0d\u5177\u5408\u7b87\u6240<\/td>\n\u30e9\u30f3\u30b9\u304c\u8a70\u307e\u3063\u3066\u3044\u308b\u3001\u5148\u7aef\u4ed8\u8fd1\u3067\u306e\u30ac\u30b9\u5206\u5e03\u304c\u4e0d\u5747\u4e00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u30d5\u30e9\u30c3\u30af\u30b9\u30bf\u30d6\u30ec\u30c3\u30c8\u304a\u3088\u3073\u30d5\u30e9\u30c3\u30af\u30b9\u5264\u306e\u8131\u30ac\u30b9<\/h2>\n

\u4e00\u90e8\u306e\u92f3\u9020\u6240\u3067\u306f\u3001\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306b\u6d78\u6f2c\u3055\u308c\u308b\u3068\u5316\u5b66\u53cd\u5fdc\u306b\u3088\u3063\u3066\u30ac\u30b9\u3092\u653e\u51fa\u3059\u308b\u56fa\u5f62\u30d5\u30e9\u30c3\u30af\u30b9\u9320\u5264\u3084\u7c92\u72b6\u306e\u30d5\u30e9\u30c3\u30af\u30b9\u5316\u5408\u7269\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u65e7\u5f0f\u306e\u88fd\u9020\u5de5\u7a0b\u3067\u306f\u3001\u901a\u5e38\u3001\u30d8\u30ad\u30b5\u30af\u30ed\u30ed\u30a8\u30bf\u30f3\u3092\u4e3b\u6210\u5206\u3068\u3059\u308b\u9320\u5264\u304c\u7528\u3044\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u74b0\u5883\u898f\u5236\u306e\u5f37\u5316\u306b\u3088\u308a\u3001\u696d\u754c\u3067\u306f\u4ee3\u308f\u308a\u306b\u4e0d\u6d3b\u6027\u30ac\u30b9\u6cd5\u3078\u306e\u79fb\u884c\u304c\u6025\u901f\u306b\u9032\u3093\u3067\u3044\u307e\u3059\u3002.<\/p>\n

\u3053\u306e\u5316\u5b66\u53cd\u5fdc\u306b\u3088\u308a\u3001\u5869\u7d20\u3084\u305d\u306e\u4ed6\u306e\u53cd\u5fdc\u6027\u30ac\u30b9\u304c\u653e\u51fa\u3055\u308c\u3001\u3053\u308c\u3089\u306f\u4e0d\u6d3b\u6027\u30ac\u30b9\u306e\u6ce8\u5165\u3068\u540c\u69d8\u306b\u6eb6\u878d\u7269\u4e2d\u3092\u6c17\u6ce1\u3068\u306a\u3063\u3066\u4e0a\u6607\u3057\u3001\u6eb6\u89e3\u3057\u305f\u6c34\u7d20\u3092\u8868\u9762\u3078\u3068\u904b\u3073\u4e0a\u3052\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30d7\u30e9\u30f3\u30b8\u30f3\u30b0\u30c4\u30fc\u30eb\u4ee5\u5916\u306e\u7279\u5225\u306a\u88c5\u7f6e\u3092\u5fc5\u8981\u3068\u3057\u307e\u305b\u3093\u304c\u3001\u91cd\u5927\u306a\u6b20\u70b9\u3082\u4f34\u3044\u307e\u3059\u3002 \u5869\u7d20\u653e\u51fa\u9320\u306f\u3001\u73fe\u4ee3\u306e\u307b\u3068\u3093\u3069\u306e\u74b0\u5883\u898f\u5236\u3067\u53b3\u3057\u304f\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u7159\u72b6\u306e\u6392\u51fa\u7269\u3092\u767a\u751f\u3055\u305b\u308b\u307b\u304b\u3001\u30ed\u30fc\u30bf\u30ea\u30fc\u5f0f\u3084\u30e9\u30f3\u30b9\u5f0f\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u30ac\u30b9\u6d41\u91cf\u306e\u7cbe\u5bc6\u306a\u5236\u5fa1\u306b\u6bd4\u3079\u3001\u53cd\u5fdc\u3092\u6b63\u78ba\u306b\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u56f0\u96e3\u3067\u3042\u308b\u3002.<\/p>\n

We rarely recommend chlorine-based flux tablets to clients anymore, not just for regulatory reasons but because the efficiency simply doesn’t compete with modern inert gas methods, and the fume handling requirements often cost more in ventilation infrastructure than switching to a proper rotary degassing unit would in the first place.<\/p>\n

\u9ad8\u7d14\u5ea6\u7528\u9014\u5411\u3051\u306e\u771f\u7a7a\u8131\u30ac\u30b9<\/h2>\n

Aerospace and other high-integrity casting applications sometimes require degassing performance beyond what atmospheric pressure methods can achieve. Vacuum degassing places the molten aluminum in a sealed chamber where pressure is reduced significantly below atmospheric level, which lowers hydrogen’s solubility limit dramatically and drives dissolved gas out of solution even without bubble injection, though many vacuum systems combine reduced pressure with simultaneous inert gas purging for maximum effect.<\/p>\n

This method achieves the highest hydrogen removal percentages of any technique but comes with substantial equipment cost, slower processing time, and batch size limitations based on chamber capacity. Most standard foundries producing general automotive or industrial castings don’t need vacuum degassing, but producers supplying aerospace structural components or medical device castings often have specifications that essentially require it.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u771f\u7a7a\u8131\u30ac\u30b9\u7279\u6027<\/th>\n\u8a73\u7d30<\/th>\n<\/tr>\n<\/thead>\n
\u5178\u578b\u7684\u306a\u6c34\u7d20\u9084\u5143\u53cd\u5fdc<\/td>\n90% \u304b\u3089 95%+ \u3078<\/td>\n<\/tr>\n
1\u30d0\u30c3\u30c1\u3042\u305f\u308a\u306e\u51e6\u7406\u6642\u9593<\/td>\n\u30c1\u30e3\u30f3\u30d0\u30fc\u306e\u5927\u304d\u3055\u306b\u3088\u3063\u3066\u300120\u5206\u304b\u308945\u5206\u7a0b\u5ea6\u304b\u304b\u308a\u307e\u3059<\/td>\n<\/tr>\n
\u8a2d\u5099\u6295\u8cc7\u984d<\/td>\n\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u56de\u8ee2\u5f0f\u30a4\u30f3\u30da\u30e9\u30b7\u30b9\u30c6\u30e0\u306e3\uff5e5\u500d\u306e\u8cbb\u7528\u304c\u304b\u304b\u308b<\/td>\n<\/tr>\n
\u696d\u754c\u306b\u304a\u3051\u308b\u4e00\u822c\u7684\u306a\u7528\u9014<\/td>\n\u822a\u7a7a\u5b87\u5b99\u3001\u9632\u885b\u3001\u533b\u7642\u6a5f\u5668\u7528\u92f3\u9020\u54c1<\/td>\n<\/tr>\n
\u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306e\u5236\u9650<\/td>\n\u30c1\u30e3\u30f3\u30d0\u30fc\u306e\u5bb9\u7a4d\u306b\u5236\u7d04\u3055\u308c\u308b\u305f\u3081\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u306b\u6bd4\u3079\u3066\u67d4\u8edf\u6027\u306b\u6b20\u3051\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u8131\u30ac\u30b9\u306b\u9069\u3057\u305f\u30ac\u30b9\u306e\u9078\u3073\u65b9<\/h2>\n

\u30ac\u30b9\u306e\u9078\u5b9a\u306f\u6a5f\u5668\u306e\u9078\u5b9a\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u3067\u3059\u304c\u3001\u3053\u306e\u70b9\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u306e\u30c6\u30fc\u30de\u306b\u95a2\u3059\u308b\u591a\u304f\u306e\u5165\u9580\u8cc7\u6599\u3067\u8efd\u8996\u3055\u308c\u304c\u3061\u3067\u3059\u3002.<\/p>\n

\u7a92\u7d20\u306f\u3001\u4f4e\u30b3\u30b9\u30c8\u3067\u5165\u624b\u3082\u5bb9\u6613\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u5f93\u6765\u6700\u3082\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u3066\u304d\u305f\u3082\u306e\u3067\u3042\u308a\u3001\u591a\u304f\u306e\u6c4e\u7528\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u9020\u7528\u9014\u306b\u304a\u3044\u3066\u5341\u5206\u306a\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002 \u3057\u304b\u3057\u3001\u7a92\u7d20\u306b\u306f\u9855\u8457\u306a\u5236\u9650\u304c\u3042\u308b\u3002\u305d\u308c\u306f\u3001\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306b\u4e00\u5b9a\u306e\u6eb6\u89e3\u6027\u3092\u6301\u3064\u3068\u3044\u3046\u70b9\u3067\u3042\u308b\u3002\u3064\u307e\u308a\u3001\u6c34\u7d20\u6fc3\u5ea6\u304c\u6975\u3081\u3066\u4f4e\u3044\u5834\u5408\u3001\u7a92\u7d20\u81ea\u4f53\u304c\u6c34\u7d20\u3092\u7d14\u7c8b\u306b\u9664\u53bb\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5fae\u91cf\u306a\u304c\u3089\u6c17\u5b54\u306e\u767a\u751f\u306b\u5bc4\u4e0e\u3057\u59cb\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u3053\u306e\u305f\u3081\u3001\u7a92\u7d20\u3092\u7528\u3044\u305f\u8131\u30ac\u30b9\u51e6\u7406\u306b\u3088\u3063\u3066\u6c34\u7d20\u542b\u6709\u91cf\u3092\u4f4e\u6e1b\u3067\u304d\u308b\u4e0b\u9650\u306b\u306f\u3001\u5b9f\u7528\u4e0a\u306e\u9650\u754c\u304c\u8a2d\u3051\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u3002.<\/p>\n

Argon, being fully inert with essentially zero solubility in aluminum, provides more consistent and often superior degassing results, particularly when very low final hydrogen levels are the target. Argon costs more than nitrogen, which is the main reason it isn’t universally used, but for high-specification castings the performance difference justifies the added expense.<\/p>\n

\u3053\u3061\u3089\u3082\u304a\u8aad\u307f\u304f\u3060\u3055\u3044\uff1a \u30a2\u30eb\u30df\u92f3\u9020\u306e\u6c17\u5b54\u7387\u3092\u6e1b\u3089\u3059\u306b\u306f\uff1f<\/a><\/p>\n

\u4e00\u90e8\u306e\u5de5\u7a0b\u3067\u306f\u3001\u6c34\u7d20\u62bd\u51fa\u3068\u4e26\u884c\u3057\u3066\u9178\u5316\u76ae\u819c\u306e\u9664\u53bb\u3092\u4fc3\u9032\u3059\u308b\u305f\u3081\u3001\u4e3b\u305f\u308b\u4e0d\u6d3b\u6027\u30ad\u30e3\u30ea\u30a2\u30ac\u30b9\u306b\u5c11\u91cf\u306e\u5869\u7d20\u3084\u305d\u306e\u4ed6\u306e\u53cd\u5fdc\u6027\u30ac\u30b9\u3092\u6df7\u5408\u3057\u305f\u30ac\u30b9\u6df7\u5408\u30ac\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u30d5\u30e9\u30c3\u30af\u30b9\u30bf\u30d6\u30ec\u30c3\u30c8\u306b\u95a2\u3057\u3066\u8a00\u53ca\u3057\u305f\u74b0\u5883\u9762\u3084\u6392\u30ac\u30b9\u51e6\u7406\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u306b\u518d\u3073\u7acb\u3061\u8fd4\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n
\u30ac\u30b9\u30fb\u30bf\u30a4\u30d7<\/th>\n\u76f8\u5bfe\u30b3\u30b9\u30c8<\/th>\n\u6c34\u7d20\u9664\u53bb\u52b9\u7387<\/th>\n\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n
\u7a92\u7d20<\/td>\n\u4f4e\u3044<\/td>\n\u30b0\u30c3\u30c9<\/td>\n\u6eb6\u89e3\u5ea6\u304c\u308f\u305a\u304b\u306a\u3053\u3068\u304c\u3001\u8d85\u4f4e\u6c34\u7d20\u76ee\u6a19\u306e\u9054\u6210\u3092\u59a8\u3052\u3066\u3044\u308b<\/td>\n<\/tr>\n
\u30a2\u30eb\u30b4\u30f3<\/td>\n\u4e2d\uff5e\u9ad8<\/td>\n\u7d20\u6674\u3089\u3057\u3044<\/td>\n\u5b8c\u5168\u306b\u4e0d\u6d3b\u6027\u3067\u3042\u308a\u3001\u9ad8\u7cbe\u5ea6\u92f3\u9020\u306b\u6700\u9069<\/td>\n<\/tr>\n
\u7a92\u7d20\u30fb\u5869\u7d20\u6df7\u5408\u7269<\/td>\n\u4e2d\u7a0b\u5ea6<\/td>\n\u975e\u5e38\u306b\u826f\u3044<\/td>\n\u9178\u5316\u7269\u306e\u9664\u53bb\u52b9\u7387\u304c\u5411\u4e0a\u3057\u305f\u305f\u3081\u3001\u6392\u30ac\u30b9\u5bfe\u7b56\u304c\u5fc5\u8981\u3068\u306a\u308b<\/td>\n<\/tr>\n
\u30a2\u30eb\u30b4\u30f3\u30fb\u5869\u7d20\u6df7\u5408\u30ac\u30b9<\/td>\n\u9ad8\u3044<\/td>\n\u7d20\u6674\u3089\u3057\u3044<\/td>\n\u7dcf\u5408\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u6700\u9ad8\u3060\u304c\u3001\u30b3\u30b9\u30c8\u3068\u898f\u5236\u4e0a\u306e\u8ca0\u62c5\u3082\u6700\u3082\u5927\u304d\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u8131\u30ac\u30b9\u524d\u5f8c\u306e\u6c34\u7d20\u542b\u6709\u91cf\u306e\u6e2c\u5b9a<\/h2>\n

None of this matters without a reliable way to confirm degassing actually worked, and this is where a surprising number of smaller foundries fall short. Visual inspection of a fracture surface tells you almost nothing reliable about dissolved hydrogen content, yet we still encounter shops relying purely on experience and “it looks fine” judgments.<\/p>\n

The reduced pressure test remains the most widely used practical shop-floor method. A small metal sample solidifies under vacuum conditions, exaggerating any porosity that dissolved hydrogen would create, and the resulting sample gets compared visually or by density measurement against reference standards. It’s inexpensive and fast, though somewhat subjective depending on operator experience interpreting the results.<\/p>\n

More precise instrumental methods have become standard in larger operations. First bubble tests, thermal conductivity-based hydrogen analyzers, and dedicated hydrogen measurement probes that give a direct reading in milliliters of hydrogen per hundred grams of aluminum provide quantifiable, repeatable data that a reduced pressure test simply can’t match.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u6e2c\u5b9a\u65b9\u6cd5<\/th>\n\u30b9\u30d4\u30fc\u30c9<\/th>\n\u7cbe\u5ea6<\/th>\n\u4e00\u822c\u7684\u306a\u30b3\u30b9\u30c8<\/th>\n<\/tr>\n<\/thead>\n
\u6e1b\u5727\u8a66\u9a13<\/td>\n\u77ed\u6642\u9593\uff08\u56fa\u5316\u6642\u9593\u3092\u542b\u3081\u306610\uff5e15\u5206\uff09<\/td>\n\u4e2d\u7a0b\u5ea6\u3001\u3084\u3084\u4e3b\u89b3\u7684<\/td>\n\u4f4e\u3044<\/td>\n<\/tr>\n
\u5bc6\u5ea6\u6307\u6570\u306e\u7b97\u51fa<\/td>\n\u901f\u3044<\/td>\n\u4e2d\u7a0b\u5ea6<\/td>\n\u4f4e\u3044<\/td>\n<\/tr>\n
\u6700\u521d\u306e\u6c17\u6ce1\u8a66\u9a13<\/td>\n\u4e2d\u7a0b\u5ea6<\/td>\n\u30b0\u30c3\u30c9<\/td>\n\u4e2d\u7a0b\u5ea6<\/td>\n<\/tr>\n
\u71b1\u4f1d\u5c0e\u5f0f\u6c34\u7d20\u5206\u6790\u88c5\u7f6e<\/td>\n\u901f\u3044\uff082\uff5e5\u5206\uff09<\/td>\n\u9ad8\u3044\u3001\u5b9a\u91cf\u7684<\/td>\n\u9ad8\u3044<\/td>\n<\/tr>\n
\u30c6\u30ec\u30ac\u30b9\u307e\u305f\u306f\u985e\u4f3c\u306e\u305d\u306e\u5834\u6e2c\u5b9a\u7528\u30d7\u30ed\u30fc\u30d6<\/td>\n\u975e\u5e38\u306b\u9ad8\u901f\uff08\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\uff09<\/td>\n\u975e\u5e38\u306b\u9ad8\u3044<\/td>\n\u975e\u5e38\u306b\u9ad8\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u79c1\u305f\u3061\u306f\u3059\u3079\u3066\u306e\u304a\u5ba2\u69d8\u306b\u540c\u3058\u3053\u3068\u3092\u304a\u4f1d\u3048\u3057\u3066\u3044\u307e\u3059\u3002\u3069\u306e\u3088\u3046\u306a\u624b\u6cd5\u3092\u9078\u3070\u308c\u308b\u306b\u305b\u3088\u3001\u305d\u306e\u4fa1\u5024\u306f\u5358\u4e00\u306e\u6e2c\u5b9a\u5024\u304b\u3089\u3067\u306f\u306a\u304f\u3001\u9577\u671f\u306b\u308f\u305f\u308b\u4e00\u8cab\u6027\u3068\u50be\u5411\u306e\u8ffd\u8de1\u304b\u3089\u751f\u307e\u308c\u308b\u306e\u3067\u3059\u3002 \u92f3\u9020\u5de5\u5834\u304c1\u30b7\u30d5\u30c8\u306b1\u56de\u6c34\u7d20\u542b\u6709\u91cf\u3092\u6e2c\u5b9a\u3057\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u751f\u7523\u30c7\u30fc\u30bf\u3068\u7167\u5408\u3057\u3066\u8a18\u9332\u3059\u308b\u3053\u3068\u3067\u3001\u7089\u306e\u72b6\u614b\u306e\u5909\u52d5\u3001\u30ac\u30b9\u4f9b\u7d66\u306e\u554f\u984c\u3001\u3042\u308b\u3044\u306f\u8a2d\u5099\u306e\u6469\u8017\u3068\u3044\u3063\u305f\u554f\u984c\u3092\u3001\u92f3\u7269\u304c\u5ec3\u68c4\u3055\u308c\u308b\u4e8b\u614b\u306b\u306a\u308b\u306f\u308b\u304b\u4ee5\u524d\u306b\u5bdf\u77e5\u3067\u304d\u308b\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304c\u69cb\u7bc9\u3055\u308c\u307e\u3059\u3002.<\/p>\n

\"\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u30b7\u30b9\u30c6\u30e0\u306e\u8a8d\u8a3c\u66f8\u306e\u4e00\u89a7\u8868\u793a\"
\u30a4\u30f3\u30e9\u30a4\u30f3\u8131\u30ac\u30b9\u30b7\u30b9\u30c6\u30e0\u306e\u8a8d\u8a3c\u66f8\u306e\u4e00\u89a7\u8868\u793a<\/figcaption><\/figure>\n

\u8cfc\u5165\u8005\u5411\u3051\u6a5f\u5668\u6bd4\u8f03<\/h2>\n

\u8131\u30ac\u30b9\u88c5\u7f6e\u306e\u8cfc\u5165\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u8cfc\u5165\u8005\u306f\u3001\u8868\u9762\u4e0a\u306e\u52b9\u7387\u6570\u5024\u4ee5\u5916\u306b\u3082\u3001\u3044\u304f\u3064\u304b\u306e\u8981\u7d20\u3092\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n
\u8a2d\u5099\u30bf\u30a4\u30d7<\/th>\n\u8cc7\u672c\u30b3\u30b9\u30c8\u306e\u304a\u304a\u3088\u305d\u306e\u7bc4\u56f2<\/th>\n\u4fdd\u5b88\u306e\u8907\u96d1\u3055<\/th>\n\u6d88\u8017\u54c1\u306e\u30b3\u30b9\u30c8<\/th>\n<\/tr>\n<\/thead>\n
\u30e9\u30f3\u30b9\u30fb\u30b7\u30b9\u30c6\u30e0<\/td>\n\u4f4e\uff08$2,000\uff5e$8,000\uff09<\/td>\n\u4f4e\u3044<\/td>\n\u30ac\u30b9\u3001\u6642\u6298\u306e\u30e9\u30f3\u30b9\u4ea4\u63db<\/td>\n<\/tr>\n
\u56de\u8ee2\u30a4\u30f3\u30da\u30e9\u30e6\u30cb\u30c3\u30c8<\/td>\n\u4e2d\u7a0b\u5ea6\uff08$15,000\uff5e$60,000\uff09<\/td>\n\u4e2d\u7a0b\u5ea6\u3001\u30b7\u30e3\u30d5\u30c8\uff0f\u30a4\u30f3\u30da\u30e9\u306a\u3069\u306e\u6469\u8017\u90e8\u54c1<\/td>\n\u30ac\u30b9\u3001\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u88fd\u30a4\u30f3\u30da\u30e9\u306e\u4ea4\u63db<\/td>\n<\/tr>\n
\u30a4\u30f3\u30e9\u30a4\u30f3\u591a\u5b54\u8cea\u30d7\u30e9\u30b0\u30b7\u30b9\u30c6\u30e0<\/td>\n\u9ad8\uff08$50,000\uff5e$200,000\u4ee5\u4e0a\uff09<\/td>\n\u4e2d\u7a0b\u5ea6\u3001\u30d7\u30e9\u30b0\u4ea4\u63db\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb<\/td>\n\u30ac\u30b9\u3001\u30d7\u30e9\u30b0\u306e\u5b9a\u671f\u4ea4\u63db<\/td>\n<\/tr>\n
\u771f\u7a7a\u8131\u30ac\u30b9\u30c1\u30e3\u30f3\u30d0\u30fc<\/td>\n\u975e\u5e38\u306b\u9ad8\u3044\uff08$150,000\uff5e$500,000\u4ee5\u4e0a\uff09<\/td>\n\u30cf\u30a4\u3001\u30b7\u30fc\u30eb\u3001\u30dd\u30f3\u30d7<\/td>\n\u30ac\u30b9\u3001\u771f\u7a7a\u30dd\u30f3\u30d7\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u5b9a\u4fa1\u3060\u3051\u3067\u306a\u304f\u3001\u8cfc\u5165\u8005\u306f\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u5bfe\u3057\u3001\u81ea\u793e\u306e\u5177\u4f53\u7684\u306a\u751f\u7523\u91cf\u306b\u304a\u3051\u308b\u30a4\u30f3\u30da\u30e9\u30fc\u3084\u30d7\u30e9\u30b0\u306e\u4ea4\u63db\u983b\u5ea6\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3059\u3079\u304d\u3067\u3059\u3002\u6d88\u8017\u90e8\u54c1\u306f\u3001\u6570\u5e74\u9593\u306e\u7a3c\u50cd\u306b\u304a\u3044\u3066\u7dcf\u6240\u6709\u30b3\u30b9\u30c8\u3092\u5927\u5e45\u306b\u62bc\u3057\u4e0a\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002 \u30ed\u30fc\u30bf\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u30b7\u30e3\u30d5\u30c8\u3084\u30a4\u30f3\u30da\u30e9\u306e\u5bff\u547d\u306f\u3001\u6eb6\u878d\u6e29\u5ea6\u3001\u5408\u91d1\u7d44\u6210\u3001\u56de\u8ee2\u901f\u5ea6\u306b\u3088\u3063\u3066\u901a\u5e38\u6570\u9031\u9593\u304b\u3089\u6570\u30f6\u6708\u306e\u7bc4\u56f2\u3067\u3042\u308a\u3001\u3053\u306e\u4ea4\u63db\u30b5\u30a4\u30af\u30eb\u3092\u898b\u8d8a\u3057\u3066\u4e8b\u524d\u306b\u4e88\u7b97\u3092\u8a08\u4e0a\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u8cfc\u5165\u5f8c\u306e\u4e88\u671f\u305b\u306c\u51fa\u8cbb\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\u8131\u30ac\u30b9\u52b9\u7387\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3088\u304f\u3042\u308b\u9593\u9055\u3044<\/h2>\n

We’ve walked into more than a few foundries where expensive degassing equipment sat underperforming simply due to operational habits rather than equipment failure.<\/p>\n

Running gas flow rate too high seems intuitive as a way to speed up treatment, but excessive flow actually creates larger bubbles through coalescence, reducing total surface area and cutting efficiency rather than improving it. There’s a sweet spot for flow rate specific to each equipment design that operators need to dial in rather than assuming more gas equals better results.<\/p>\n

Insufficient treatment time driven by production pressure to move faster is probably the most common shortfall we encounter. Operators under pressure to hit throughput targets sometimes cut treatment cycles short, and the hydrogen reduction curve isn’t linear, the last portion of gas removal often takes disproportionately longer than the initial reduction, meaning a rushed cycle can leave significant residual hydrogen despite looking similar to a properly completed one on the surface.<\/p>\n

\u30a4\u30f3\u30da\u30e9\u304c\u6469\u8017\u3057\u305f\u308a\u640d\u50b7\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u304c\u4fb5\u98df\u3055\u308c\u3001\u30ac\u30b9\u6392\u51fa\u53e3\u304c\u62e1\u5927\u3059\u308b\u305f\u3081\u3001\u5fae\u7d30\u306a\u6c17\u6ce1\u3092\u5206\u6563\u3055\u305b\u308b\u80fd\u529b\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4ea4\u63db\u30b3\u30b9\u30c8\u3084\u7a3c\u50cd\u505c\u6b62\u6642\u9593\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306f\u6709\u52b9\u8010\u7528\u5e74\u6570\u3092\u5927\u5e45\u306b\u8d85\u3048\u3066\u3082\u3001\u6027\u80fd\u304c\u4f4e\u4e0b\u3057\u305f\u30a4\u30f3\u30da\u30e9\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u8131\u30ac\u30b9\u5de5\u7a0b\u306e\u4e0a\u6d41\u306b\u304a\u3051\u308b\u7089\u5185\u306e\u885b\u751f\u72b6\u614b\u304c\u4e0d\u826f\u3067\u3042\u308b\u5834\u5408\u3001\u3064\u307e\u308a\u6e7f\u3063\u305f\u30b9\u30af\u30e9\u30c3\u30d7\u3001\u6e7f\u3063\u305f\u5de5\u5177\u3001\u3042\u308b\u3044\u306f\u6c5a\u67d3\u3055\u308c\u305f\u6295\u5165\u6750\u6599\u306a\u3069\u304c\u5b58\u5728\u3059\u308b\u3068\u3001\u6c34\u7d20\u304c\u3001\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u8131\u30ac\u30b9\u88c5\u7f6e\u3067\u9664\u53bb\u3067\u304d\u308b\u901f\u5ea6\u3088\u308a\u3082\u901f\u304f\u6df7\u5165\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u7d99\u7d9a\u7684\u306a\u6c5a\u67d3\u3068\u306e\u6226\u3044\u306b\u304a\u3044\u3066\u3001\u5b9f\u8cea\u7684\u306b\u52dd\u3061\u76ee\u306e\u306a\u3044\u72b6\u6cc1\u306b\u9665\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u9593\u9055\u3044<\/th>\n\u7d50\u679c<\/th>\n\u8a02\u6b63<\/th>\n<\/tr>\n<\/thead>\n
\u30ac\u30b9\u6d41\u91cf\u306e\u904e\u5270<\/td>\n\u6c17\u6ce1\u304c\u5927\u304d\u304f\u306a\u308b\u3068\u3001\u52b9\u7387\u304c\u4f4e\u4e0b\u3059\u308b<\/td>\n\u30e1\u30fc\u30ab\u30fc\u6307\u5b9a\u306e\u6d41\u91cf\u7bc4\u56f2\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044<\/td>\n<\/tr>\n
\u6cbb\u7642\u30b5\u30a4\u30af\u30eb\u306e\u77ed\u7e2e<\/td>\n\u6c34\u7d20\u306e\u9664\u53bb\u304c\u4e0d\u5b8c\u5168<\/td>\n\u30b5\u30a4\u30af\u30eb\u6642\u9593\u3092\u3001\u5b9f\u969b\u306b\u6e2c\u5b9a\u3055\u308c\u305f\u6c34\u7d20\u9084\u5143\u66f2\u7dda\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3059\u308b<\/td>\n<\/tr>\n
\u6469\u8017\u3057\u305f\u30a4\u30f3\u30da\u30e9\u90e8\u54c1<\/td>\n\u6c17\u6ce1\u306e\u5206\u6563\u304c\u4e0d\u5341\u5206<\/td>\n\u4ea4\u63db\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3092\u7b56\u5b9a\u3057\u3001\u305d\u308c\u306b\u5f93\u3046<\/td>\n<\/tr>\n
\u6e7f\u3063\u3066\u3044\u308b\u3001\u307e\u305f\u306f\u6c5a\u67d3\u3055\u308c\u305f\u5145\u586b\u6750<\/td>\n\u6c34\u7d20\u306e\u9023\u7d9a\u7684\u306a\u518d\u5c0e\u5165<\/td>\n\u30b9\u30af\u30e9\u30c3\u30d7\u306e\u4fdd\u7ba1\u304a\u3088\u3073\u4e88\u71b1\u306e\u65b9\u6cd5\u3092\u6539\u5584\u3059\u308b<\/td>\n<\/tr>\n
\u6e2c\u5b9a\u65b9\u6cd5\u306e\u4e0d\u7d71\u4e00<\/td>\n\u691c\u51fa\u3055\u308c\u306a\u3044\u30d7\u30ed\u30bb\u30b9\u306e\u30c9\u30ea\u30d5\u30c8<\/td>\n\u6c34\u7d20\u691c\u67fb\u306e\u5b9a\u671f\u7684\u306a\u5b9f\u65bd\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3092\u7b56\u5b9a\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u30b3\u30b9\u30c8\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u3068\u6295\u8cc7\u53ce\u76ca\u7387<\/h2>\n

Foundry managers evaluating whether to upgrade degassing equipment often focus purely on purchase price without calculating the defect cost savings that justify the investment. We’ve found it useful to walk through a simplified comparison when advising clients on this decision.<\/p>\n

\u73fe\u5728\u3001\u30e9\u30f3\u30b9\u8131\u30ac\u30b9\u6cd5\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u6c17\u5b54\u306b\u3088\u308b\u4e0d\u826f\u304c\u539f\u56e0\u306712%\u306e\u30b9\u30af\u30e9\u30c3\u30d7\u7387\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u92f3\u9020\u5de5\u5834\u3092\u4f8b\u306b\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u30fc\u30b7\u30b9\u30c6\u30e0\u306b\u66f4\u65b0\u3059\u308c\u3070\u3001\u73fe\u5b9f\u7684\u306b\u3001\u3053\u306e\u6c17\u5b54\u306b\u8d77\u56e0\u3059\u308b\u30b9\u30af\u30e9\u30c3\u30d7\u7387\u30923%\u307e\u305f\u306f4%\u307e\u3067\u4f4e\u6e1b\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u751f\u7523\u91cf\u3084\u90e8\u54c1\u306e\u4fa1\u5024\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u30b9\u30af\u30e9\u30c3\u30d7\u7387\u306e\u4f4e\u6e1b\u306b\u3088\u308b\u6750\u6599\u8cbb\u3068\u4eba\u4ef6\u8cbb\u306e\u7bc0\u7d04\u3060\u3051\u3067\u3001\u8a2d\u5099\u6295\u8cc7\u30b3\u30b9\u30c8\u306f12\uff5e18\u30f6\u6708\u4ee5\u5185\u306b\u56de\u53ce\u3067\u304d\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u9ad8\u4ed8\u52a0\u4fa1\u5024\u306e\u92f3\u7269\u306e\u5834\u5408\u3001\u305d\u308c\u3088\u308a\u3082\u65e9\u304f\u56de\u53ce\u3067\u304d\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u30b3\u30b9\u30c8\u4fc2\u6570<\/th>\n\u30e9\u30f3\u30b9\u30fb\u30b7\u30b9\u30c6\u30e0<\/th>\n\u56de\u8ee2\u30a4\u30f3\u30da\u30e9\u30b7\u30b9\u30c6\u30e0<\/th>\n<\/tr>\n<\/thead>\n
\u521d\u671f\u8a2d\u5099\u6295\u8cc7<\/td>\n\u3088\u308a\u4f4e\u3044<\/td>\n\u4e2d\uff5e\u9ad8<\/td>\n<\/tr>\n
\u591a\u5b54\u6027\u306b\u95a2\u9023\u3059\u308b\u5178\u578b\u7684\u306a\u4e0d\u826f\u7387<\/td>\n8%\u301c15%<\/td>\n2%\u304b\u30895%<\/td>\n<\/tr>\n
1\u30d0\u30c3\u30c1\u3042\u305f\u308a\u306e\u51e6\u7406\u6240\u8981\u6642\u9593<\/td>\n\u3088\u308a\u9ad8\u3044\uff08\u30b5\u30a4\u30af\u30eb\u6642\u9593\u304c\u9577\u3044\uff09<\/td>\n\u4f4e\u3044\uff08\u3088\u308a\u901f\u304f\u3001\u3088\u308a\u5b89\u5b9a\u3057\u3066\u3044\u308b\uff09<\/td>\n<\/tr>\n
\u30ac\u30b9\u6d88\u8cbb\u52b9\u7387<\/td>\n\u9664\u53bb\u3055\u308c\u308b\u6c34\u7d20\u306e\u5358\u4f4d\u5f53\u305f\u308a\u306e\u91cf\u304c\u6e1b\u5c11<\/td>\n\u3088\u308a\u9ad8\u3044<\/td>\n<\/tr>\n
1\u500b\u306e\u826f\u54c1\u92f3\u9020\u54c1\u3042\u305f\u308a\u306e\u9577\u671f\u30b3\u30b9\u30c8<\/td>\n\u30b9\u30af\u30e9\u30c3\u30d7\u306e\u5f71\u97ff\u3067\u3001\u3057\u3070\u3057\u3070\u9ad8\u304f\u306a\u308b<\/td>\n\u521d\u671f\u8cbb\u7528\u306f\u9ad8\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u6700\u7d42\u7684\u306b\u306f\u5b89\u304f\u306a\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u3053\u3046\u3057\u305f\u8a08\u7b97\u3053\u305d\u3001\u8abf\u9054\u30c1\u30fc\u30e0\u304c\u8cc7\u672c\u8a2d\u5099\u306e\u8cfc\u5165\u7533\u8acb\u3092\u627f\u8a8d\u3059\u308b\u524d\u306b\u3001\u79c1\u305f\u3061\u304c\u5fc5\u305a\u8aac\u660e\u3057\u3066\u3044\u308b\u5185\u5bb9\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u8a2d\u5099\u4fa1\u683c\u3060\u3051\u3092\u5358\u72ec\u3067\u691c\u8a0e\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30b9\u30af\u30e9\u30c3\u30d7\u8cbb\u7528\u3001\u5de5\u6570\u3001\u9867\u5ba2\u304b\u3089\u306e\u62d2\u7d76\u306b\u4f34\u3046\u9055\u7d04\u91d1\u3068\u3044\u3063\u305f\u8981\u7d20\u304c\u52a0\u308f\u308b\u3068\u3001\u8b70\u8ad6\u306e\u7126\u70b9\u304c\u307e\u3063\u305f\u304f\u5909\u308f\u3063\u3066\u304f\u308b\u304b\u3089\u3067\u3059\u3002.<\/p>\n

\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n

\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306e\u8131\u30ac\u30b9\u306b\u306f\u3001\u901a\u5e38\u3069\u308c\u304f\u3089\u3044\u306e\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u304b\uff1f<\/strong>
\n\u51e6\u7406\u6642\u9593\u306f\u3001\u51e6\u7406\u65b9\u6cd5\u3084\u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306b\u5927\u304d\u304f\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002\u30e9\u30f3\u30b9\u8131\u6c17\u306e\u5834\u5408\u3001\u6a19\u6e96\u7684\u306a\u30d0\u30c3\u30c1\u3067\u306f\u901a\u5e3815\uff5e30\u5206\u304b\u304b\u308a\u307e\u3059\u304c\u3001\u30ed\u30fc\u30bf\u30ea\u30fc\u30a4\u30f3\u30da\u30e9\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u6c17\u6ce1\u306e\u5206\u6563\u52b9\u7387\u304c\u9ad8\u3044\u305f\u3081\u30015\uff5e15\u5206\u3067\u540c\u7a0b\u5ea6\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u6c34\u7d20\u4f4e\u6e1b\u52b9\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002.<\/p>\n

\u92f3\u9020\u524d\u306e\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306b\u304a\u3044\u3066\u3001\u8a31\u5bb9\u3055\u308c\u308b\u6c34\u7d20\u6fc3\u5ea6\u306f\u3069\u308c\u304f\u3089\u3044\u3067\u3059\u304b\uff1f<\/strong>
\n\u8a31\u5bb9\u30ec\u30d9\u30eb\u306f\u7528\u9014\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u4e00\u822c\u7684\u306a\u696d\u754c\u57fa\u6e96\u3067\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u5546\u7528\u92f3\u9020\u54c1\u306b\u304a\u3044\u3066\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0100\u30b0\u30e9\u30e0\u3042\u305f\u308a0.1\uff5e0.2\u30df\u30ea\u30ea\u30c3\u30c8\u30eb\u306e\u6c34\u7d20\u304c\u76ee\u6a19\u5024\u3068\u3055\u308c\u3066\u304a\u308a\u3001\u9ad8\u4fe1\u983c\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u822a\u7a7a\u5b87\u5b99\u7528\u9014\u3067\u306f\u30010.1\u672a\u6e80\u306e\u30ec\u30d9\u30eb\u304c\u6c42\u3081\u3089\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u8131\u30ac\u30b9\u76ee\u7684\u306b\u304a\u3044\u3066\u3001\u7a92\u7d20\u306f\u30a2\u30eb\u30b4\u30f3\u306e\u4ee3\u308f\u308a\u3068\u3057\u3066\u5b8c\u5168\u306b\u4f7f\u7528\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong>
\n\u7a92\u7d20\u306f\u3001\u4e00\u822c\u7684\u306a\u92f3\u9020\u7528\u9014\u306e\u307b\u3068\u3093\u3069\u306b\u304a\u3044\u3066\u5341\u5206\u306b\u6a5f\u80fd\u3057\u3001\u30a2\u30eb\u30b4\u30f3\u3088\u308a\u3082\u30b3\u30b9\u30c8\u304c\u5927\u5e45\u306b\u5b89\u3044\u3067\u3059\u3002\u6700\u7d42\u7684\u306a\u6c34\u7d20\u542b\u6709\u91cf\u3092\u6975\u3081\u3066\u4f4e\u304f\u6291\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u7528\u9014\u3067\u306f\u3001\u30a2\u30eb\u30b4\u30f3\u306f\u5b8c\u5168\u306a\u4e0d\u6d3b\u6027\u3067\u3042\u308a\u3001\u6eb6\u878d\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3078\u306e\u6eb6\u89e3\u5ea6\u304c\u30bc\u30ed\u3067\u3042\u308b\u305f\u3081\u3001\u901a\u5e38\u3001\u7a92\u7d20\u3088\u308a\u3082\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002.<\/p>\n

\u8131\u30ac\u30b9\u51e6\u7406\u3067\u306f\u3001\u6c34\u7d20\u3060\u3051\u3067\u306a\u304f\u9178\u5316\u7269\u306e\u4ecb\u5728\u7269\u3082\u9664\u53bb\u3055\u308c\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong>
\n\u8131\u30ac\u30b9\u51e6\u7406\u306f\u4e3b\u306b\u6eb6\u5b58\u6c34\u7d20\u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6c17\u6ce1\u306b\u3088\u308b\u64b9\u62cc\u4f5c\u7528\u306b\u3088\u3063\u3066\u3001\u4e00\u90e8\u306e\u9178\u5316\u7269\u4ecb\u5728\u7269\u304c\u8868\u9762\u306b\u6d6e\u4e0a\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u591a\u304f\u306e\u92f3\u9020\u6240\u3067\u306f\u3001\u4ecb\u5728\u7269\u306e\u9664\u53bb\u3092\u3088\u308a\u5fb9\u5e95\u7684\u306b\u884c\u3046\u305f\u3081\u3001\u8131\u30ac\u30b9\u51e6\u7406\u3068\u3001\u901a\u5e38\u306f\u30bb\u30e9\u30df\u30c3\u30af\u30d5\u30a9\u30fc\u30e0\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u7528\u3044\u305f\u5225\u9014\u306e\u308d\u904e\u51e6\u7406\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u56de\u8ee2\u5f0f\u8131\u30ac\u30b9\u88c5\u7f6e\u306e\u30a4\u30f3\u30da\u30e9\u90e8\u54c1\u306f\u3001\u3069\u306e\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u4ea4\u63db\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/strong>
\n\u4ea4\u63db\u983b\u5ea6\u306f\u6eb6\u878d\u6e29\u5ea6\u3001\u56de\u8ee2\u901f\u5ea6\u3001\u751f\u7523\u91cf\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u88fd\u30a4\u30f3\u30da\u30e9\u306f\u901a\u5e38\u3001\u9023\u7d9a\u904b\u8ee2\u3092\u6570\u9031\u9593\u304b\u3089\u6570\u30f6\u6708\u884c\u3046\u3054\u3068\u306b\u4ea4\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u76ee\u8996\u691c\u67fb\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u6027\u80fd\u304c\u8457\u3057\u304f\u4f4e\u4e0b\u3059\u308b\u524d\u306b\u6469\u8017\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\u81ea\u52d5\u8eca\u7528\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u92f3\u7269\u306b\u306f\u3001\u771f\u7a7a\u8131\u30ac\u30b9\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/strong>
\nMost automotive applications don’t require vacuum degassing, since rotary impeller or inline systems provide sufficient hydrogen reduction for standard structural and engine components. Vacuum degassing is generally reserved for aerospace or specialty high-integrity applications with stricter porosity tolerances.<\/p>\n

\u30d0\u30c3\u30c1\u9593\u3067\u8131\u30ac\u30b9\u7d50\u679c\u306b\u3070\u3089\u3064\u304d\u304c\u751f\u3058\u308b\u539f\u56e0\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>
\n\u4e00\u822c\u7684\u306a\u539f\u56e0\u3068\u3057\u3066\u306f\u3001\u30ac\u30b9\u6d41\u91cf\u306e\u5909\u52d5\u3001\u51e6\u7406\u6642\u9593\u306e\u3070\u3089\u3064\u304d\u3001\u88c5\u7f6e\u90e8\u54c1\u306e\u6469\u8017\u3001\u304a\u3088\u3073\u539f\u6599\u306e\u542b\u6c34\u7387\u306e\u5909\u52d5\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u6a19\u6e96\u5316\u3055\u308c\u305f\u624b\u9806\u3092\u78ba\u7acb\u3057\u3001\u5b9a\u671f\u7684\u306b\u6c34\u7d20\u6fc3\u5ea6\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u3070\u3089\u3064\u304d\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3001\u662f\u6b63\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n

\u30ac\u30b9\u6ce8\u5165\u88c5\u7f6e\u3092\u4f7f\u308f\u305a\u306b\u3001\u30d5\u30e9\u30c3\u30af\u30b9\u30bf\u30d6\u30ec\u30c3\u30c8\u3060\u3051\u3067\u5341\u5206\u306a\u8131\u6c17\u306f\u53ef\u80fd\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong>
\n\u30d5\u30e9\u30c3\u30af\u30b9\u9320\u306f\u3001\u901a\u5e3830%\u304b\u308950%\u7a0b\u5ea6\u306e\u9069\u5ea6\u306a\u6c34\u7d20\u4f4e\u6e1b\u52b9\u679c\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u304c\u3001\u4e00\u822c\u7684\u306b\u4e0d\u6d3b\u6027\u30ac\u30b9\u6ce8\u5165\u6cd5\u3068\u6bd4\u8f03\u3059\u308b\u3068\u6027\u80fd\u306f\u52a3\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5869\u7d20\u653e\u51fa\u578b\u9320\u5264\u306b\u5bfe\u3059\u308b\u898f\u5236\u4e0a\u306e\u5236\u7d04\u3082\u76f8\u307e\u3063\u3066\u3001\u6700\u8fd1\u306e\u92f3\u9020\u6240\u306e\u591a\u304f\u306f\u30ac\u30b9\u30d9\u30fc\u30b9\u306e\u65b9\u6cd5\u3092\u63a1\u7528\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u73fe\u5728\u306e\u8131\u30ac\u30b9\u5de5\u7a0b\u306b\u6539\u5584\u306e\u4f59\u5730\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3001\u3069\u3046\u3059\u308c\u3070\u308f\u304b\u308a\u307e\u3059\u304b\uff1f<\/strong>
\n\u7d4c\u6642\u7684\u306a\u6c17\u5b54\u7387\u306b\u95a2\u9023\u3059\u308b\u4e0d\u826f\u7387\u306e\u63a8\u79fb\u3092\u8ffd\u8de1\u3059\u308b\u3053\u3068\u304c\u3001\u6700\u3082\u76f4\u63a5\u7684\u306a\u6307\u6a19\u3068\u306a\u308a\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u8131\u30ac\u30b9\u3092\u884c\u3063\u3066\u3082\u30ac\u30b9\u6c17\u5b54\u306b\u3088\u308b\u4e0d\u826f\u7387\u304c\u4f9d\u7136\u3068\u3057\u3066\u9ad8\u3044\u307e\u307e\u3067\u3042\u308b\u5834\u5408\u306f\u3001\u51e6\u7406\u524d\u5f8c\u306e\u5b9f\u969b\u306e\u6c34\u7d20\u542b\u6709\u91cf\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u5de5\u7a0b\u304c\u5341\u5206\u306a\u4f4e\u6e1b\u52b9\u679c\u3092\u9054\u6210\u3067\u304d\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u5468\u56f2\u306e\u6e7f\u5ea6\u306f\u3001\u92f3\u9020\u6240\u304c\u5fc5\u8981\u3068\u3059\u308b\u8131\u30ac\u30b9\u91cf\u306b\u672c\u5f53\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/strong>
\n\u306f\u3044\u3001\u6e7f\u5ea6\u306e\u9ad8\u3044\u6c17\u5019\u3084\u96e8\u5b63\u306b\u64cd\u696d\u3059\u308b\u92f3\u9020\u6240\u3067\u306f\u3001\u5927\u6c17\u4e2d\u306e\u6c34\u5206\u3084\u6e7f\u3063\u305f\u92f3\u9020\u539f\u6599\u306b\u3088\u308b\u6c34\u7d20\u306e\u5438\u53ce\u304c\u5897\u52a0\u3059\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u4e7e\u71e5\u3057\u305f\u64cd\u696d\u74b0\u5883\u306b\u6bd4\u3079\u3001\u51e6\u7406\u6642\u9593\u306e\u8abf\u6574\u3084\u3088\u308a\u983b\u7e41\u306a\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u79c1\u305f\u3061\u306e\u7d4c\u9a13\u304b\u3089\u5f97\u3089\u308c\u305f\u7dcf\u62ec<\/h2>\n

Degassing molten aluminum sits at an odd intersection in foundry operations. Everyone acknowledges it matters, yet the actual execution quality varies enormously from one plant floor to another, often more due to operational discipline than equipment capability. We’ve watched foundries with modest lance systems outperform others running expensive rotary units, purely because the team with simpler equipment measured consistently, replaced consumables on schedule, and maintained good furnace hygiene practices upstream.<\/p>\n

If there’s one takeaway worth carrying forward from everything covered here, it’s that equipment choice matters less than most buyers initially assume, and process discipline matters more. Choose degassing equipment appropriate to your production volume and quality requirements, but invest equally in measurement practices and operator training, because even the best rotary impeller system will underperform in the hands of an operator rushing treatment cycles to hit a production number.<\/p>","protected":false},"excerpt":{"rendered":"

Degassing molten aluminum is the process of removing dissolved hydrogen gas and non-metallic inclusions from liquid aluminum before casting, and the most effective methods available today are rotary impeller degassing, inline degassing with porous plugs, and lance-fed inert gas injection using argon or nitrogen. Foundries that skip proper degassing end up with porosity defects that […]<\/p>\n","protected":false},"author":1,"featured_media":3489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3488","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"\nDegassing Molten Aluminum: Complete Guide to Methods, Equipment - AdTech<\/title>\n<meta name=\"description\" content=\"Learn how degassing molten aluminum removes hydrogen gas and impurities to prevent casting defects. 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