{"id":3605,"date":"2026-08-24T15:57:04","date_gmt":"2026-08-24T07:57:04","guid":{"rendered":"https:\/\/www.c-adtech.com\/?p=3605"},"modified":"2026-08-24T15:57:04","modified_gmt":"2026-08-24T07:57:04","slug":"40-ppi-ceramic-foam-filter","status":"publish","type":"post","link":"https:\/\/www.c-adtech.com\/tr\/40-ppi-ceramic-foam-filter\/","title":{"rendered":"40 PPI Seramik K\u00f6p\u00fck Filtre"},"content":{"rendered":"

40 PPI seramik k\u00f6p\u00fck filtre<\/a> removes non-metallic inclusions from molten aluminum and other non-ferrous alloys by forcing melt through a network of interconnected pores measuring roughly 0.6mm to 0.8mm in diameter. We’ve worked with foundries across multiple continents, and this specific porosity grade sits at the sweet spot for aluminum sand casting and low-pressure die casting where medium-fine filtration is required without excessive flow restriction. If you’re sourcing filters for wheel production, engine blocks, or structural automotive components, the 40 PPI grade typically delivers the best balance between inclusion capture rate and casting yield.<\/p>\n

Projeniz i\u00e7in 40 PPI Seramik K\u00f6p\u00fck Filtre kullan\u0131lmas\u0131 gerekiyorsa, \u015funlar\u0131 yapabilirsiniz: Bize ula\u015f\u0131n<\/a>\u00a0\u00fccretsiz fiyat teklifi i\u00e7in.<\/span><\/p>\n

Seramik filtre terminolojisinde PPI asl\u0131nda ne anlama gelir?<\/h2>\n

PPI, \u201clineer in\u00e7 ba\u015f\u0131na g\u00f6zenek say\u0131s\u0131\u201d anlam\u0131na gelir; bu \u00f6l\u00e7\u00fc birimi, 1970\u2019lerde seramik k\u00f6p\u00fck filtrelerin ilk kez poli\u00fcretan k\u00f6p\u00fck kal\u0131plar\u0131ndan uyarlanmaya ba\u015fland\u0131\u011f\u0131 d\u00f6nemde, a\u011fs\u0131 k\u00f6p\u00fck end\u00fcstrisinden al\u0131nm\u0131\u015ft\u0131r. Bu say\u0131, filtrenin bir in\u00e7lik bir kesitini inceleyerek ve g\u00f6zle g\u00f6r\u00fclebilen g\u00f6zenek a\u00e7\u0131kl\u0131klar\u0131n\u0131 sayarak belirlenir.<\/p>\n

Here’s something manufacturers rarely explain clearly: PPI isn’t an exact science. Two filters both labeled 40 PPI from different production batches can show pore counts varying by 3-5 pores depending on measurement angle and foam cell uniformity. We always recommend requesting a certificate of analysis with actual pore count data rather than relying solely on the printed specification.<\/p>\n

PPI de\u011feri ile ger\u00e7ek g\u00f6zenek boyutu aras\u0131nda ters orant\u0131l\u0131 bir ili\u015fki vard\u0131r. Daha y\u00fcksek PPI de\u011ferleri, daha k\u00fc\u00e7\u00fck ve daha \u00e7ok say\u0131da g\u00f6zenek anlam\u0131na gelir. 10 PPI\u2019l\u0131k bir filtre, b\u00fcy\u00fck c\u00fcruf par\u00e7alar\u0131n\u0131 gidermeye uygun geni\u015f ve iri a\u00e7\u0131kl\u0131klara sahipken, 80 PPI\u2019l\u0131k bir filtre, mikroskobik oksit tabakalar\u0131n\u0131 tutan ancak ak\u0131\u015f\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde k\u0131s\u0131tlayan son derece ince g\u00f6zeneklere sahiptir.<\/p>\n

\"AdTech
AdTech 40 PPI Seramik K\u00f6p\u00fck Filtre<\/figcaption><\/figure>\n

Teknik \u00d6zellikler ve Fiziksel \u00d6zellikler<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Parametre<\/th>\n\u015eartname<\/th>\n<\/tr>\n<\/thead>\n
G\u00f6zenek Yo\u011funlu\u011fu<\/td>\nLineer in\u00e7 ba\u015f\u0131na 38-42 g\u00f6zenek<\/td>\n<\/tr>\n
Ortalama G\u00f6zenek \u00c7ap\u0131<\/td>\n0.6mm – 0.8mm<\/td>\n<\/tr>\n
G\u00f6zeneklilik Y\u00fczdesi<\/td>\n80% – 88%<\/td>\n<\/tr>\n
Y\u0131\u011f\u0131n Yo\u011funlu\u011fu<\/td>\n0.4 – 0.6 g\/cm\u00b3<\/td>\n<\/tr>\n
So\u011fuk K\u0131rma Dayan\u0131m\u0131<\/td>\n\u2265 0,6 MPa<\/td>\n<\/tr>\n
Maksimum Servis S\u0131cakl\u0131\u011f\u0131<\/td>\n1000\u00b0C – 1650\u00b0C (alloy dependent)<\/td>\n<\/tr>\n
Termal \u015eok Direnci<\/td>\nOda s\u0131cakl\u0131\u011f\u0131ndan 800 \u00b0C\u2019ye kadar h\u0131zl\u0131 \u0131s\u0131nmaya dayan\u0131kl\u0131d\u0131r<\/td>\n<\/tr>\n
Standart Kal\u0131nl\u0131k<\/td>\n15 mm, 20 mm, 22 mm, 40 mm, 50 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

We’ve seen crushing strength values quoted differently across suppliers, and this matters more than most buyers realize. A filter with insufficient cold crushing strength can crack during handling before it ever touches molten metal, leading to breakthrough contamination that ruins an entire casting batch.<\/p>\n

Ayr\u0131ca okuyun: Seramik K\u00f6p\u00fck Filtre Nedir?<\/a><\/p>\n

Bile\u015fim ve \u00dcretim Malzemeleri<\/h2>\n
\"G\u00f6zenekli
G\u00f6zenekli Seramik T\u00fcrleri<\/figcaption><\/figure>\n

40 PPI filtre \u00fcretiminde \u00fc\u00e7 temel seramik malzeme sistemi \u00f6ne \u00e7\u0131kmaktad\u0131r ve her biri belirli d\u00f6k\u00fcm uygulamalar\u0131na kendine \u00f6zg\u00fc performans \u00f6zellikleri sunmaktad\u0131r.<\/p>\n

Silikon Karb\u00fcr (SiC) K\u00f6p\u00fck Filtreleri<\/strong><\/p>\n

Silikon karb\u00fcr filtreler, daha y\u00fcksek \u0131s\u0131 iletkenli\u011fi gerektiren uygulamalarda kullan\u0131l\u0131r ve silikon i\u00e7eri\u011fi daha y\u00fcksek olan al\u00fcminyum ala\u015f\u0131mlar\u0131nda iyi sonu\u00e7 verir. Koyu gri ila siyah renkleri sayesinde, al\u00fcmina bazl\u0131 alternatiflerden g\u00f6rsel olarak ay\u0131rt edilebilirler. Is\u0131 d\u00f6ng\u00fcs\u00fc direncinin kritik \u00f6neme sahip oldu\u011fu A356 veya A380 ala\u015f\u0131mlar\u0131yla \u00e7al\u0131\u015f\u0131rken genellikle SiC filtreleri \u00f6neririz.<\/p>\n

Al\u00fcmina (Al\u2082O\u2083) K\u00f6p\u00fck Filtreleri<\/strong><\/p>\n

Al\u00fcmina, genel al\u00fcminyum d\u00f6k\u00fcm\u00fcnde en yayg\u0131n kullan\u0131lan malzemedir. Makul bir maliyetle sa\u011flam mekanik mukavemet sunar ve standart al\u00fcminyum d\u00f6k\u00fcm i\u015flerinin \u00e7o\u011funu kar\u015f\u0131lar. D\u00fcnya \u00e7ap\u0131nda sevk edilen 40 PPI filtrelerin \u00e7o\u011fu bu bile\u015fimi kullan\u0131r.<\/p>\n

Zirkonya-Al\u00fcmina Kompozit Filtreler<\/strong><\/p>\n

Daha y\u00fcksek d\u00f6k\u00fcm s\u0131cakl\u0131klar\u0131 veya daha agresif ala\u015f\u0131m bile\u015fimleri i\u00e7eren uygulamalarda, zirkonyumla g\u00fc\u00e7lendirilmi\u015f filtreler daha uzun hizmet \u00f6mr\u00fc sa\u011flar. Bu filtreler daha pahal\u0131d\u0131r ancak uzun s\u00fcreli d\u00f6k\u00fcmler s\u0131ras\u0131nda erozyona ba\u011fl\u0131 filtre bozulmas\u0131 riskini azalt\u0131r.<\/p>\n

\n\n\n\n\n\n\n\n
Malzeme T\u00fcr\u00fc<\/th>\nEn \u0130yi Uygulama<\/th>\nG\u00f6receli Maliyet<\/th>\nMaksimum S\u0131cakl\u0131k De\u011feri<\/th>\n<\/tr>\n<\/thead>\n
Al\u00fcmina<\/td>\nGenel al\u00fcminyum d\u00f6k\u00fcm<\/td>\nBa\u015flang\u0131\u00e7 Noktas\u0131<\/td>\n1000\u00b0C<\/td>\n<\/tr>\n
Silisyum Karb\u00fcr<\/td>\nY\u00fcksek silikonlu al\u00fcminyum ala\u015f\u0131mlar\u0131<\/td>\n1.3-1.5x<\/td>\n1400\u00b0C<\/td>\n<\/tr>\n
Zirkonya Kompozit<\/td>\nUzat\u0131lm\u0131\u015f d\u00f6k\u00fcm s\u00fcreleri, sert ala\u015f\u0131mlar<\/td>\n1.8-2.2x<\/td>\n1650\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

K\u00f6p\u00fck Yap\u0131s\u0131n\u0131n \u0130\u00e7inde Filtreleme Asl\u0131nda Nas\u0131l Ger\u00e7ekle\u015fir?<\/h2>\n

Seramik k\u00f6p\u00fck arac\u0131l\u0131\u011f\u0131yla erimi\u015f metalin s\u00fcz\u00fclmesi, e\u015fzamanl\u0131 olarak i\u015fleyen iki farkl\u0131 mekanizma sayesinde ger\u00e7ekle\u015fir; her ikisini de anlamak, 40 PPI\u2019nin daha iri veya daha ince alternatiflerden neden farkl\u0131 bir performans sergiledi\u011fini a\u00e7\u0131klamaya yard\u0131mc\u0131 olur.<\/p>\n

Mekanik Eleme<\/strong>\u00a0Bu, g\u00f6zenek \u00e7ap\u0131ndan daha b\u00fcy\u00fck par\u00e7ac\u0131klar\u0131n fiziksel olarak ge\u00e7emeyece\u011fi g\u00f6zenek a\u00e7\u0131kl\u0131klar\u0131nda ger\u00e7ekle\u015fir. Bu basit mekanizma, refrakter par\u00e7alar\u0131, oksit tabakalar\u0131 ve daha b\u00fcy\u00fck intermetalik bile\u015fikler gibi daha b\u00fcy\u00fck kal\u0131nt\u0131lar\u0131 tutar.<\/p>\n

Derinlik Filtrasyonu<\/strong>\u00a0K\u00f6p\u00fck yap\u0131s\u0131n\u0131n k\u0131vr\u0131ml\u0131 i\u00e7 yolu boyunca ger\u00e7ekle\u015fir. Erimi\u015f malzeme, birbirine ba\u011fl\u0131 dikme ve bo\u015fluklardan olu\u015fan \u00fc\u00e7 boyutlu a\u011f boyunca ilerlerken, daha k\u00fc\u00e7\u00fck par\u00e7ac\u0131klar g\u00f6zenek duvarlar\u0131yla \u00e7arp\u0131\u015f\u0131r ve y\u00fczey gerilimi etkileri ile van der Waals kuvvetleri nedeniyle bu duvarlara yap\u0131\u015f\u0131r. Bu mekanizma, nominal g\u00f6zenek \u00e7ap\u0131ndan \u00f6nemli \u00f6l\u00e7\u00fcde daha k\u00fc\u00e7\u00fck par\u00e7ac\u0131klar\u0131 tutar; bu da 40 PPI\u2019l\u0131k bir filtrenin, 0,6-0,8 mm\u2019lik g\u00f6zenek boyutunun \u00e7ok alt\u0131ndaki kal\u0131nt\u0131lar\u0131 neden giderebildi\u011fini a\u00e7\u0131klar.<\/p>\n

Filtre i\u00e7inden ge\u00e7en ak\u0131\u015f davran\u0131\u015f\u0131 da bir \u00e7\u00f6kelme etkisi yarat\u0131r. Erimi\u015f malzemenin h\u0131z\u0131, k\u00f6p\u00fck matrisinin direncinden ge\u00e7erken azald\u0131k\u00e7a, baz\u0131 daha a\u011f\u0131r kal\u0131nt\u0131lar, g\u00f6zenek yap\u0131s\u0131na ula\u015famadan yo\u011funluk farklar\u0131 nedeniyle \u00e7\u00f6kelir. Bu, filtre kutusu tasar\u0131m\u0131 ve giri\u015f deli\u011finin konumland\u0131r\u0131lmas\u0131n\u0131n, filtre se\u00e7imi kadar \u00f6nemli olmas\u0131n\u0131n nedenlerinden biridir.<\/p>\n

We’ve observed in plant trials that roughly 60-70% of total inclusion removal in a properly sized 40 PPI filter comes from depth filtration rather than simple sieving, which surprises many process engineers who assume pore size alone determines capture efficiency.<\/p>\n

\"Erimi\u015f
Erimi\u015f al\u00fcminyum filtrasyonu i\u00e7in d\u00fczg\u00fcn a\u00e7\u0131k h\u00fccreli g\u00f6zenekli yap\u0131 g\u00f6steren fosfat i\u00e7ermeyen al\u00fcmina seramik k\u00f6p\u00fck filtrenin yak\u0131n \u00e7ekim mikroyap\u0131s\u0131<\/figcaption><\/figure>\n

40 PPI\u2019nin Di\u011fer Yayg\u0131n S\u0131n\u0131flarla Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/h2>\n

Choosing between PPI grades requires balancing flow rate against filtration fineness. Here’s how 40 PPI stacks up against neighboring options.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
\u00dcFE S\u0131n\u0131f\u0131<\/th>\nG\u00f6zenek Boyutu (mm)<\/th>\nAk\u0131\u015f H\u0131z\u0131<\/th>\nFiltrasyon \u0130ncelik<\/th>\nTipik Uygulama<\/th>\n<\/tr>\n<\/thead>\n
10 \u00dcFE<\/td>\n2.3-3.0<\/td>\n\u00c7ok Y\u00fcksek<\/td>\nKaba<\/td>\nKaba c\u00fcruf giderme, yer\u00e7ekimi d\u00f6k\u00fcm\u00fc<\/td>\n<\/tr>\n
20 \u00dcFE<\/td>\n1.2-1.5<\/td>\nY\u00fcksek<\/td>\nOrta-Kaba<\/td>\nGenel kum d\u00f6k\u00fcm<\/td>\n<\/tr>\n
30 \u00dcFE<\/a><\/td>\n0.8-1.0<\/td>\nOrta-Y\u00fcksek<\/td>\nOrta<\/td>\nOtomotiv bile\u015fenleri<\/td>\n<\/tr>\n
40 \u00dcFE<\/td>\n0.6-0.8<\/td>\nOrta<\/td>\nOrta-\u0130nce<\/td>\nTekerlekler, motor par\u00e7alar\u0131, LPDC<\/td>\n<\/tr>\n
50 \u00dcFE<\/td>\n0.4-0.5<\/td>\nOrta-D\u00fc\u015f\u00fck<\/td>\nTamam<\/td>\nY\u00fcksek b\u00fct\u00fcnl\u00fckl\u00fc d\u00f6k\u00fcmler<\/td>\n<\/tr>\n
60 \u00dcFE<\/td>\n0.3-0.4<\/td>\nD\u00fc\u015f\u00fck<\/td>\n\u00c7ok \u0130yi<\/td>\nHavac\u0131l\u0131k ve uzay, kritik yap\u0131sal par\u00e7alar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u00dcretim denemelerindeki deneyimlerimize g\u00f6re, 30 PPI\u2019dan 40 PPI\u2019ya ge\u00e7ildi\u011finde ak\u0131\u015f h\u0131z\u0131 genellikle -20 azal\u0131rken, kal\u0131nt\u0131 yakalama verimlili\u011fi de benzer bir oranda artmaktad\u0131r. Direksiyon mafsallar\u0131 veya tekerlek g\u00f6bekleri gibi g\u00fcvenlik a\u00e7\u0131s\u0131ndan kritik bile\u015fenler \u00fcreten d\u00f6k\u00fcmhaneler, genellikle 40 PPI de\u011ferinin, kal\u0131p dolum sorunlar\u0131na yol a\u00e7an a\u015f\u0131r\u0131 kar\u015f\u0131 bas\u0131n\u00e7 olu\u015fturmadan gerekli kalite e\u015fi\u011fini kar\u015f\u0131lad\u0131\u011f\u0131n\u0131 g\u00f6rmektedir.<\/p>\n

\"10PPI
10PPI 20PPI 30 PPI Seramik K\u00f6p\u00fck Filtre<\/figcaption><\/figure>\n

Farkl\u0131 Ala\u015f\u0131m Sistemlerinde Kullan\u0131m Alanlar\u0131<\/h2>\n

Al\u00fcminyum Jant \u00dcretimi<\/strong><\/p>\n

Jant d\u00f6k\u00fcm\u00fc, d\u00fcnya \u00e7ap\u0131nda 40 PPI filtrelerin belki de en b\u00fcy\u00fck tek uygulama alan\u0131n\u0131 olu\u015fturmaktad\u0131r. Otomotiv jantlar\u0131 hem yap\u0131sal b\u00fct\u00fcnl\u00fck hem de y\u00fczey kalitesi gerektirir; zira bitmi\u015f bir jant\u0131n g\u00f6r\u00fcn\u00fcr y\u00fczeyine yak\u0131n bir yerde s\u0131k\u0131\u015fm\u0131\u015f herhangi bir yabanc\u0131 madde, hem estetik hem de g\u00fcvenlik a\u00e7\u0131s\u0131ndan reddedilme nedeni olur. D\u00fc\u015f\u00fck bas\u0131n\u00e7l\u0131 kal\u0131plama tekni\u011fiyle jant \u00fcreten tesisler genellikle 40 PPI filtrelerini y\u00fckseltici borunun taban\u0131na veya ak\u0131\u015f kanal\u0131na yerle\u015ftirir.<\/p>\n

Motor Blo\u011fu ve Silindir Kafas\u0131 D\u00f6k\u00fcm\u00fc<\/strong><\/p>\n

Motor bile\u015fenleri, hizmet \u00f6m\u00fcrleri boyunca termal d\u00f6ng\u00fclere ve bas\u0131n\u00e7 y\u00fcklemelerine maruz kal\u0131r; bu nedenle i\u00e7 g\u00f6zeneklilik ve kal\u0131nt\u0131lar \u00f6zellikle tehlikeli hale gelir. Bir\u00e7ok motor d\u00f6k\u00fcmhanesi, A319 ve A356 ala\u015f\u0131m sistemleri i\u00e7in standart filtreleme derecesi olarak 40 PPI\u2019yi belirler; kritik yanma odas\u0131 alanlar\u0131 i\u00e7in ise bazen bu de\u011fer 50 PPI\u2019ye \u00e7\u0131kar\u0131l\u0131r.<\/p>\n

Otomotiv Sekt\u00f6r\u00fcne Y\u00f6nelik Yap\u0131sal D\u00f6k\u00fcmler<\/strong><\/p>\n

Ara\u00e7 \u00fcreticileri, \u00e7eli\u011fin yerine daha hafif al\u00fcminyum yap\u0131lar kullan\u0131lmas\u0131n\u0131 te\u015fvik ettik\u00e7e, s\u00fcspansiyon bile\u015fenleri, kontrol kollar\u0131 ve alt \u015fasi d\u00f6k\u00fcmlerinde 40 PPI filtreleme giderek daha yayg\u0131n hale gelmektedir. Bu uygulamalar, d\u00f6k\u00fcm\u00fcn tamam\u0131nda tutarl\u0131 mekanik \u00f6zellikler gerektirmektedir; bu da kal\u0131nt\u0131lar\u0131n tamamen giderilmesini zorunlu k\u0131lmaktad\u0131r.<\/p>\n

Kum Kal\u0131plama Uygulamalar\u0131<\/strong><\/p>\n

Orta karma\u015f\u0131kl\u0131kta al\u00fcminyum par\u00e7alar\u0131n \u00fcretiminde, ye\u015fil kum ve re\u00e7ine ba\u011flay\u0131c\u0131l\u0131 kum kal\u0131plar 40 PPI filtrelemeden faydalan\u0131r. Filtre genellikle d\u00f6k\u00fcm kanal sisteminde, \u00e7o\u011fu zaman filtreyi metal ak\u0131\u015f y\u00f6n\u00fcne dik konumland\u0131ran \u00f6zel olarak tasarlanm\u0131\u015f bir filtre yuvas\u0131 i\u00e7inde yer al\u0131r.<\/p>\n

Installation Best Practices We’ve Learned From Plant Experience<\/h2>\n

Filtre kurulumunun do\u011fru bir \u015fekilde yap\u0131lmas\u0131, sorun giderme ziyaretleri s\u0131ras\u0131nda kar\u015f\u0131la\u015ft\u0131\u011f\u0131m\u0131z filtrelemeyle ilgili d\u00f6k\u00fcm kusurlar\u0131n\u0131n \u00e7o\u011funu \u00f6nler.<\/p>\n

Filtre Bask\u0131 Tasar\u0131m\u0131<\/strong><\/p>\n

The cavity holding the filter needs proper sealing to prevent metal bypass around the filter edges rather than through it. We’ve seen foundries lose 30% of theoretical filtration benefit simply because the filter print allowed a thin metal channel to form around the filter perimeter during the pour. Adding a slight interference fit or ceramic fiber gasket around the filter edge solves this reliably.<\/p>\n

\u00d6n Is\u0131tma Konusunda Dikkat Edilmesi Gerekenler<\/strong><\/p>\n

S\u0131cak bir d\u00f6k\u00fcm kanal sistemine yerle\u015ftirilen so\u011fuk filtreler, termal \u015fok riski yarat\u0131r ve ayr\u0131ca eriyik cephesinin yerel olarak donmas\u0131na neden olarak hatal\u0131 d\u00f6k\u00fcmlere yol a\u00e7abilir. D\u00f6ng\u00fc s\u00fcresi izin verdi\u011fi \u00f6l\u00e7\u00fcde, filtrelerin yerle\u015ftirilmeden \u00f6nce en az 150-200\u00b0C'ye kadar \u00f6n \u0131s\u0131t\u0131lmas\u0131n\u0131 \u00f6neririz; ancak y\u00fcksek hacimli bir\u00e7ok \u00fcretim operasyonunda, termal \u015fok direnci a\u00e7\u0131s\u0131ndan uygun \u015fekilde form\u00fcle edilmi\u015f filtreler kullan\u0131ld\u0131\u011f\u0131nda bu ad\u0131m ba\u015far\u0131yla atlanmaktad\u0131r.<\/p>\n

Ak\u0131\u015f Y\u00f6n\u00fc ve Oryantasyonu<\/strong><\/p>\n

Seramik k\u00f6p\u00fck filtreler her iki ak\u0131\u015f y\u00f6n\u00fcnde de \u00e7al\u0131\u015f\u0131r; ancak \u00f6ng\u00f6r\u00fclebilir ak\u0131\u015f h\u0131z\u0131 hesaplamalar\u0131 i\u00e7in tutarl\u0131l\u0131k \u00f6nemlidir. G\u00f6zenek yap\u0131s\u0131ndaki k\u00fc\u00e7\u00fck \u00fcretim farkl\u0131l\u0131klar\u0131 hafif\u00e7e asimetrik ak\u0131\u015f \u00f6zelliklerine yol a\u00e7abilece\u011finden, filtreleri rastgele monte etmek yerine \u00fcretim s\u00fcreciniz boyunca standart bir y\u00f6nlendirme belirleyin ve buna uyun.<\/p>\n

\u0130lk Ak\u0131\u015fla \u0130lgili Hususlar<\/strong><\/p>\n

The initial metal contacting a fresh filter experiences the highest resistance as the filter’s internal structure hasn’t yet been “primed” with a thin metal film that actually improves subsequent flow characteristics. Gating system design should account for this initial resistance spike, particularly in automated pouring systems with fixed pour rates.<\/p>\n

\"Seramik
Seramik k\u00f6p\u00fck filtrenin do\u011fru ppi de\u011ferini se\u00e7in<\/figcaption><\/figure>\n

S\u0131k Kar\u015f\u0131la\u015f\u0131lan Sorunlar ve Pratik \u00c7\u00f6z\u00fcm Yollar\u0131<\/h2>\n

D\u00f6kme S\u0131ras\u0131nda Filtre K\u0131r\u0131lmas\u0131<\/strong><\/p>\n

Bu durum genellikle \u00fc\u00e7 nedene ba\u011flanabilir: darbe gerilimi yaratan a\u015f\u0131r\u0131 d\u00f6k\u00fcm y\u00fcksekli\u011fi, bask\u0131 bo\u015flu\u011funda filtrenin yeterince oturmamas\u0131 veya uygulama i\u00e7in yeterli so\u011fuk ezilme mukavemetine sahip olmayan filtreler. Genellikle, filtrenin hemen \u00fczerindeki serbest d\u00fc\u015f\u00fc\u015f d\u00f6k\u00fcm y\u00fcksekli\u011finin 100 mm\u2019nin alt\u0131na indirilmesini ve tedarik\u00e7inin ezilme mukavemeti verilerinin pazarlama \u00f6zellikleri yerine ger\u00e7ek test sertifikalar\u0131yla kar\u015f\u0131la\u015ft\u0131r\u0131larak do\u011frulanmas\u0131n\u0131 tavsiye ediyoruz.<\/p>\n

Filtrenin Erken T\u0131kanmas\u0131<\/strong><\/p>\n

When filters clog before completing a full pour, the root cause usually involves either excessive inclusion loading in the melt (indicating upstream melt treatment problems) or selecting too fine a PPI grade for the alloy’s actual cleanliness level. Before switching to a coarser filter, we recommend reviewing degassing and fluxing practices, since filter selection should complement rather than compensate for poor melt treatment.<\/p>\n

Filtreler Aras\u0131ndaki Ak\u0131\u015f H\u0131zlar\u0131ndaki Tutars\u0131zl\u0131k<\/strong><\/p>\n

Ak\u0131\u015f \u00f6zelliklerindeki partiden partiye de\u011fi\u015fkenlik, genellikle tutars\u0131z \u00fcretim kalite kontrol\u00fcnden kaynaklan\u0131r. \u0130\u015fletmenizde belirli filtre partileriyle ili\u015fkili, a\u00e7\u0131klanamayan d\u00f6k\u00fcm kusurlar\u0131 ile kar\u015f\u0131la\u015f\u0131yorsan\u0131z, tedarik\u00e7ilerden bas\u0131n\u00e7 d\u00fc\u015f\u00fc\u015f\u00fc test verilerini talep edin ve gelen malzeme denetimi i\u00e7in numune almay\u0131 de\u011ferlendirin.<\/p>\n

A\u015f\u0131nma ve Filtre Bozulmas\u0131<\/strong><\/p>\n

Uzun d\u00f6k\u00fcm s\u00fcreleri veya belirtilen de\u011ferlerin \u00fczerindeki d\u00f6k\u00fcm s\u0131cakl\u0131klar\u0131, \u00f6zellikle standart al\u00fcmina filtrelerde filtre a\u015f\u0131nmas\u0131n\u0131 h\u0131zland\u0131r\u0131r. Belirtiler aras\u0131nda, eriyikle temas eden y\u00fczeyin yak\u0131n\u0131ndaki g\u00f6zenek yap\u0131s\u0131n\u0131n geni\u015flemesi ve uzun d\u00f6k\u00fcmlerin sonuna do\u011fru artan kal\u0131nt\u0131 seviyeleri yer al\u0131r. D\u00f6k\u00fcm s\u00fcreleri standart filtre \u00e7al\u0131\u015fma de\u011ferlerini a\u015fan uygulamalarda, silikon karb\u00fcr veya zirkonyum kompozit filtrelere ge\u00e7ilmesi bu sorunu \u00e7\u00f6zer.<\/p>\n

Mevcut Standart Boyutlar ve \u015eekiller<\/h2>\n
\n\n\n\n\n\n\n\n
\u015eekil<\/th>\nYayg\u0131n Boyutlar<\/th>\nTipik Uygulama<\/th>\n<\/tr>\n<\/thead>\n
Yuvarlak<\/td>\n50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 125 mm, 150 mm \u00e7ap\u0131nda<\/td>\nY\u00fckseltici s\u00fczme, yer\u00e7ekimi d\u00f6k\u00fcm\u00fc<\/td>\n<\/tr>\n
Kare<\/td>\n50x50 mm ile 230x230 mm aras\u0131<\/td>\nKum kal\u0131pl\u0131 d\u00f6k\u00fcm kanallar\u0131<\/td>\n<\/tr>\n
Dikd\u00f6rtgen<\/td>\nKapa\u011f\u0131n tasar\u0131m\u0131na g\u00f6re \u00f6zel boyutland\u0131rma<\/td>\nY\u00fcksek hacimli \u00fcretim hatlar\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

T\u00fcm \u015fekillerde kal\u0131nl\u0131k genellikle 15 mm ile 50 mm aras\u0131nda de\u011fi\u015fmektedir; al\u00fcminyum uygulamalar\u0131 i\u00e7in en yayg\u0131n olarak stokta bulundurulan boyut ise 22 mm\u2019dir. \u00c7o\u011fu \u00fcretici \u00f6zel boyutlarda \u00fcretim yapmaktad\u0131r; ancak standart d\u0131\u015f\u0131 boyutlar i\u00e7in minimum sipari\u015f miktarlar\u0131 genellikle standart katalog boyutlar\u0131na g\u00f6re daha y\u00fcksektir.<\/p>\n

Kalite Do\u011frulama ve Test Standartlar\u0131<\/h2>\n

Reputable manufacturers test 40 PPI filters against several international standards, though we’ve found significant variation in how rigorously different suppliers actually apply these tests.<\/p>\n

So\u011fuk ezilme dayan\u0131m\u0131 testi, ASTM C133 standard\u0131na benzer prosed\u00fcrler izlenerek ger\u00e7ekle\u015ftirilir ve filtrenin k\u0131r\u0131lmas\u0131 i\u00e7in gereken ezilme kuvvetini \u00f6l\u00e7er. Termal \u015fok direnci testi ise genellikle numunelerin \u00e7al\u0131\u015fma s\u0131cakl\u0131\u011f\u0131na \u0131s\u0131t\u0131lmas\u0131 ve ard\u0131ndan ani so\u011futmaya tabi tutulmas\u0131, ard\u0131ndan \u00e7atlak olu\u015fumu veya yap\u0131sal bozulma olup olmad\u0131\u011f\u0131n\u0131n kontrol edilmesini i\u00e7erir.<\/p>\n

Flow rate testing using standardized water models or actual metal trials provides the most practical performance data for purchasing decisions. We always recommend requesting this data specifically, since pore count alone doesn’t guarantee consistent flow performance across different manufacturing batches.<\/p>\n

Test teknolojisindeki geli\u015fmelere ra\u011fmen, g\u00f6zle inceleme \u015fa\u015f\u0131rt\u0131c\u0131 derecede \u00f6nemli olmaya devam etmektedir. Filtreler, y\u00fczeylerinde g\u00f6zle g\u00f6r\u00fcl\u00fcr \u00e7atlak, k\u0131r\u0131k veya yo\u011funluk farkl\u0131l\u0131klar\u0131 olmaks\u0131z\u0131n d\u00fczg\u00fcn bir g\u00f6zenek da\u011f\u0131l\u0131m\u0131 sergilemelidir. Renk tutarl\u0131l\u0131\u011f\u0131 da \u00fcretim s\u0131ras\u0131nda f\u0131r\u0131nlama s\u0131cakl\u0131\u011f\u0131n\u0131n do\u011fru bir \u015fekilde kontrol edildi\u011fini g\u00f6sterir; renk da\u011f\u0131l\u0131m\u0131ndaki d\u00fczensizlikler ise bazen f\u0131r\u0131n ko\u015fullar\u0131ndaki tutars\u0131zl\u0131\u011fa i\u015faret edebilir.<\/p>\n

Depolama ve Kullan\u0131m K\u0131lavuzu<\/h2>\n

Seramik k\u00f6p\u00fck filtreler, g\u00f6r\u00fcn\u00fc\u015flerinin verdi\u011fi izlenimden daha k\u0131r\u0131lgand\u0131r ve yanl\u0131\u015f depolama, \u00e7o\u011fu kalite y\u00f6neticisinin fark\u0131nda oldu\u011fundan daha fazla saha ar\u0131zas\u0131na neden olmaktad\u0131r.<\/p>\n

Filtreleri, orijinal ambalajlar\u0131nda, s\u0131cakl\u0131k dalgalanmalar\u0131ndan uzak, kuru bir ortamda saklay\u0131n. Seramik yap\u0131n\u0131n nemi emmesi, \u00f6n \u0131s\u0131tma s\u0131ras\u0131nda veya metalle ilk temas an\u0131nda buhar olu\u015fumuna yol a\u00e7arak filtrelerin \u00e7atlamas\u0131na neden olabilir. Saklama kaplar\u0131n\u0131n dibindeki filtrelerin ezilmesini \u00f6nlemek i\u00e7in istif y\u00fcksekli\u011fi s\u0131n\u0131rl\u0131 tutulmal\u0131d\u0131r; bu durum \u00f6zellikle daha b\u00fcy\u00fck kare ve dikd\u00f6rtgen \u015fekilli filtreler i\u00e7in ge\u00e7erlidir.<\/p>\n

Filtreleri, y\u00fczey yap\u0131s\u0131na bask\u0131 uygulamak yerine kenarlar\u0131ndan tutun; \u00e7\u00fcnk\u00fc parmak bask\u0131s\u0131, sert g\u00f6r\u00fcnse bile hassas k\u00f6p\u00fck matrisini s\u0131k\u0131\u015ft\u0131rabilir ve hasar verebilir. Y\u00fcksek hacimli \u00fcretim yapan d\u00f6k\u00fcmhaneler, genellikle filtreleri depodan do\u011frudan filtre kal\u0131b\u0131na, y\u00fczeye elle temas ettirmeden ta\u015f\u0131yan \u00f6zel ta\u015f\u0131ma aparatlar\u0131 geli\u015ftirir.<\/p>\n

\u00c7evresel ve Maliyetle \u0130lgili Hususlar<\/h2>\n

We’re increasingly asked about the total cost picture beyond the per-unit filter price. A 40 PPI filter typically costs 15-25% more than an equivalent 30 PPI filter due to more complex manufacturing requirements achieving the finer pore structure.<\/p>\n

Bununla birlikte, maliyet hesaplamas\u0131na, hurda oranlar\u0131ndaki azalmadan kaynaklanan sonraki a\u015famalardaki tasarruflar da dahil edilmelidir. 30 PPI\u2019dan do\u011fru \u015fekilde uygulanan 40 PPI filtrelemeye ge\u00e7en d\u00f6k\u00fcmhaneler, genellikle kusurlara duyarl\u0131 d\u00f6k\u00fcmlerde 1-3% oran\u0131nda hurda oran\u0131 d\u00fc\u015f\u00fc\u015f\u00fc bildirmektedir; bu d\u00fc\u015f\u00fc\u015f, makul herhangi bir \u00fcretim hacminde filtre fiyat fark\u0131n\u0131 genellikle kat kat a\u015fmaktad\u0131r.<\/p>\n

Disposal considerations remain minor since spent ceramic filters are inert and don’t require special hazardous waste handling in most jurisdictions, though local regulations should always be verified.<\/p>\n

\"Erimi\u015f
Erimi\u015f al\u00fcminyum d\u00f6k\u00fcm uygulamalar\u0131 i\u00e7in AdTech Seramik K\u00f6p\u00fck filtre sertifika belgesi<\/figcaption><\/figure>\n

S\u0131k\u00e7a Sorulan Sorular<\/h2>\n

What’s the difference between 40 PPI and 50 PPI ceramic foam filters?<\/strong><\/p>\n

Temel fark, g\u00f6zenek boyutunda ve bunun sonucunda elde edilen filtreleme inceli\u011finde yatmaktad\u0131r. 40 PPI filtreler daha b\u00fcy\u00fck g\u00f6zeneklere (0,6-0,8 mm) sahiptir ve bu sayede daha y\u00fcksek ak\u0131\u015f h\u0131zlar\u0131na izin verir ancak filtreleme biraz daha kaba olur; buna kar\u015f\u0131l\u0131k 50 PPI filtreler daha k\u00fc\u00e7\u00fck g\u00f6zeneklere (0,4-0,5 mm) sahiptir ve bu sayede daha ince kal\u0131nt\u0131lar\u0131 tutar, ancak bunun bedeli olarak ak\u0131\u015f h\u0131z\u0131 d\u00fc\u015fer ve filtre boyunca daha y\u00fcksek bas\u0131n\u00e7 d\u00fc\u015f\u00fc\u015f\u00fc meydana gelir.<\/p>\n

40 PPI filtreler d\u00f6kme demir uygulamalar\u0131nda kullan\u0131labilir mi?<\/strong><\/p>\n

Standard alumina 40 PPI filters aren’t typically recommended for cast iron due to the higher pouring temperatures involved. Iron casting generally requires specialized filter formulations with higher temperature ratings, often using different ceramic compositions specifically engineered for ferrous metal service.<\/p>\n

40 PPI'l\u0131k bir filtre, tek bir d\u00f6k\u00fcm i\u015flemi s\u0131ras\u0131nda ne kadar s\u00fcreyle etkinli\u011fini korur?<\/strong><\/p>\n

Etkili hizmet \u00f6mr\u00fc, eriyik temizli\u011fine ve d\u00f6k\u00fcm hacmine ba\u011fl\u0131d\u0131r; ancak standart 40 PPI filtreler, filtre boyutuna ba\u011fl\u0131 olarak genellikle 50 kg ile 500 kg aras\u0131nda de\u011fi\u015fen d\u00f6k\u00fcm hacimlerini, \u00f6nemli bir ak\u0131\u015f k\u0131s\u0131tlamas\u0131 ortaya \u00e7\u0131kmadan \u00f6nce idare edebilir. \u0130\u00e7inde \u00e7ok fazla yabanc\u0131 madde bulunan eriyikler bu kapasiteyi \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r.<\/p>\n

Seramik k\u00f6p\u00fck filtrenin kullan\u0131mdan \u00f6nce \u00e7atlamas\u0131na ne sebep olur?<\/strong><\/p>\n

Kullan\u0131m \u00f6ncesi \u00e7atlaklar genellikle nakliye veya ta\u015f\u0131ma s\u0131ras\u0131nda meydana gelen mekanik hasarlardan, \u00f6n \u0131s\u0131tma s\u0131ras\u0131nda nem emiliminin yol a\u00e7t\u0131\u011f\u0131 i\u00e7 gerilimden ya da d\u00fczensiz pi\u015firme i\u015fleminden kaynaklanan \u00fcretim kusurlar\u0131ndan kaynaklan\u0131r. Uygun depolama ve dikkatli ta\u015f\u0131ma uygulamalar\u0131, kullan\u0131m \u00f6ncesi ar\u0131zalar\u0131n \u00e7o\u011funu \u00f6nler.<\/p>\n

40 PPI filtreler i\u00e7in \u00f6n \u0131s\u0131tma her zaman gerekli midir?<\/strong><\/p>\n

Preheating isn’t strictly mandatory for all applications, but it significantly reduces thermal shock risk and prevents localized metal freezing at the filter face. High-volume automated operations sometimes skip preheating when using filters specifically rated for cold installation, but manual or lower-volume operations benefit from the practice.<\/p>\n

\u00dcretim serilerinin sonlar\u0131na do\u011fru filtrem neden daha y\u00fcksek reddetme oranlar\u0131 g\u00f6steriyor?<\/strong><\/p>\n

Bu durum genellikle, uzun s\u00fcreli \u0131s\u0131ya maruz kalma nedeniyle filtrenin kademeli olarak bozuldu\u011funu veya \u00e7al\u0131\u015fma s\u00fcresince biriken kal\u0131nt\u0131lar nedeniyle g\u00f6zeneklerin giderek t\u0131kand\u0131\u011f\u0131n\u0131 g\u00f6sterir. Filtre de\u011fi\u015ftirme zamanlamalar\u0131n\u0131, yaln\u0131zca s\u00fcreye de\u011fil, toplam i\u015fleme hacmine g\u00f6re belirleyin.<\/p>\n

Farkl\u0131 \u00fcreticilere ait 40 PPI filtresinin hepsi ayn\u0131 performans\u0131 g\u00f6sterir mi?<\/strong><\/p>\n

Hay\u0131r, ayn\u0131 PPI derecelendirmelerine ra\u011fmen tedarik\u00e7iler aras\u0131nda \u00fcretim kalitesi \u00f6nemli \u00f6l\u00e7\u00fcde farkl\u0131l\u0131k g\u00f6sterir. Ger\u00e7ek g\u00f6zenek boyutu da\u011f\u0131l\u0131m\u0131, malzeme bile\u015fimi ve \u00fcretim tutarl\u0131l\u0131\u011f\u0131, ger\u00e7ek ko\u015fullardaki performans\u0131 etkiler; bu nedenle, b\u00fcy\u00fck hacimli al\u0131mlara karar vermeden \u00f6nce tedarik\u00e7i yeterlilik testlerinin yap\u0131lmas\u0131 \u00f6nemlidir.<\/p>\n

Hangi ala\u015f\u0131m t\u00fcrleri 40 PPI filtrelemeden en fazla fayda sa\u011flar?<\/strong><\/p>\n

A356, A357 ve A380 serisi ala\u015f\u0131mlar da dahil olmak \u00fczere, yap\u0131sal ve g\u00fcvenlik a\u00e7\u0131s\u0131ndan kritik otomotiv uygulamalar\u0131nda kullan\u0131lan al\u00fcminyum d\u00f6k\u00fcm ala\u015f\u0131mlar\u0131, bu uygulamalar\u0131n gerektirdi\u011fi ak\u0131\u015f \u00f6zellikleri ile kal\u0131nt\u0131 giderme aras\u0131ndaki denge nedeniyle genellikle standart filtreleme derecesi olarak 40 PPI\u2019yi belirler.<\/p>\n

Filtre \u015feklinin se\u00e7imi, d\u00f6k\u00fcm kalitesini nas\u0131l etkiler?<\/strong><\/p>\n

Yuvarlak filtreler, yer\u00e7ekimi ve d\u00fc\u015f\u00fck bas\u0131n\u00e7l\u0131 uygulamalarda y\u00fckseltici ve d\u00f6k\u00fcm kanal\u0131 filtrelemesi i\u00e7in iyi sonu\u00e7 verirken, kare ve dikd\u00f6rtgen filtreler ise kum d\u00f6k\u00fcm\u00fcnde yayg\u0131n olarak kullan\u0131lan yatay d\u00f6k\u00fcm kanal\u0131 sistemlerine daha do\u011fal bir \u015fekilde entegre olur. \u015eekil se\u00e7imi, belirli bir \u015feklin di\u011ferlerinden evrensel olarak daha \u00fcst\u00fcn oldu\u011funu varsaymak yerine, mevcut kal\u0131p ve d\u00f6k\u00fcm kanal\u0131 tasar\u0131m\u0131n\u0131za uygun olmal\u0131d\u0131r.<\/p>\n

Kullan\u0131lm\u0131\u015f seramik k\u00f6p\u00fck filtreler yeniden kullan\u0131labilir mi?<\/strong><\/p>\n

Seramik k\u00f6p\u00fck filtreler, tek bir d\u00f6k\u00fcm d\u00f6ng\u00fcs\u00fc i\u00e7in tasarlanm\u0131\u015f tek kullan\u0131ml\u0131k sarf malzemeleridir. Kullan\u0131m s\u0131ras\u0131nda i\u00e7 yap\u0131, tutulan kal\u0131nt\u0131larla giderek dolmaya ba\u015flar; bu filtrelerin yeniden kullan\u0131lmaya \u00e7al\u0131\u015f\u0131lmas\u0131, hem ak\u0131\u015f h\u0131z\u0131n\u0131 hem de filtreleme etkinli\u011fini olumsuz etkiler ve sonraki d\u00f6k\u00fcmler s\u0131ras\u0131nda filtre ar\u0131zas\u0131 riskini art\u0131r\u0131r.<\/p>\n

D\u00f6k\u00fcmhane Ziyaretimizden Son D\u00fc\u015f\u00fcnceler<\/h2>\n

Selecting the right ceramic foam filter involves more variables than the PPI number alone suggests. We’ve walked through the technical specifications, material options, and practical installation guidance that separates successful filtration programs from those generating recurring quality headaches. The 40 PPI grade earns its widespread adoption across automotive aluminum casting because it genuinely balances competing priorities that pure technical specifications sometimes obscure.<\/p>\n

Working directly with your filter supplier on application-specific testing, rather than relying solely on catalog specifications, consistently produces better outcomes than treating filter selection as a simple ordering decision. Every foundry’s melt chemistry, gating design, and quality requirements create a slightly different optimal solution, even when the general PPI recommendation remains consistent across the industry.<\/p>","protected":false},"excerpt":{"rendered":"

A 40 PPI ceramic foam filter removes non-metallic inclusions from molten aluminum and other non-ferrous alloys by forcing melt through a network of interconnected pores measuring roughly 0.6mm to 0.8mm in diameter. We’ve worked with foundries across multiple continents, and this specific porosity grade sits at the sweet spot for aluminum sand casting and low-pressure […]<\/p>\n","protected":false},"author":1,"featured_media":3606,"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-3605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"\n40 PPI Ceramic Foam Filter - 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