{"id":2494,"date":"2025-12-26T09:29:31","date_gmt":"2025-12-26T01:29:31","guid":{"rendered":"https:\/\/www.c-adtech.com\/?p=2494"},"modified":"2026-02-24T17:23:36","modified_gmt":"2026-02-24T09:23:36","slug":"30-ppi-ceramic-foam-filter","status":"publish","type":"post","link":"https:\/\/www.c-adtech.com\/pt\/30-ppi-ceramic-foam-filter\/","title":{"rendered":"Filtro de espuma cer\u00e2mica 30 PPI: Especifica\u00e7\u00f5es, aplica\u00e7\u00f5es, guia de sele\u00e7\u00e3o"},"content":{"rendered":"

For most aluminum casting tasks, a ceramic foam filter<\/a> with 30 PPI delivers an effective balance between particle retention and metal throughput, producing cleaner castings, fewer surface defects, and more predictable mechanical performance compared with coarser or much finer alternatives.<\/p>\n

1. Overview<\/h2>\n

A 30 PPI ceramic foam filter provides midrange filtration fineness that traps nonmetallic inclusions and reduces turbulence while maintaining a steady metal flow for many common aluminum casting processes, including sand casting, permanent mold casting, and semi-continuous casting of profiles and billets. For foundries seeking reliable quality improvement with limited pressure drop, 30 PPI is frequently chosen.<\/p>\n

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30 PPI Ceramic Foam Filter<\/figcaption><\/figure>\n

2. What \u201cPPI\u201d signifies and why pore count matters<\/h2>\n

PPI stands for pores per inch. This metric describes the average number of open cells measured across one linear inch of the foam template used to make the ceramic filter. Higher PPI values indicate finer cell networks and therefore smaller channels through the ceramic body. Pore size influences two critical performance attributes:<\/p>\n