Key Factors Influencing the Service Life of Foam Ceramic Filters

1. Impurity Content in the Melt

The higher the impurity level (e.g., when smelting recycled aluminum scrap), the more susceptible the filtration layer is to clogging, resulting in a shorter service life. Conversely, melts derived from the refining of primary aluminum are relatively pure, which helps extend the operational lifespan.

2. Type of Filtration Medium

● Foam Ceramic Filters: Featuring a three-dimensional network structure, these filters possess a high capacity for capturing impurities, resulting in a service life significantly superior to that of traditional filtration media.

● Alumina Ball/Gravel Layers: These media have a relatively short service life, typically lasting only 6 to 12 hours.

3. Operational Process

Excessively high melt flow rates, insufficient preheating, or poor sealing during installation can all lead to premature filter failure.