Foundry alumina ceramic filter mainly for filtration of aluminum and alloys in cast houses. The filter can effectively remove inclusions, reduce trapped gases and provide laminar flow, so the filtered metal is significantly cleaner.
Cleaner metal results in better quality castings, less scrap and fewer embedding defects, which contributes to the bottom line.
Features of Foundy Alumina Ceramic Filter
-Reduce waste related to inclusions.
-Reduce the costs associated with inclusion defects.
-Increase productivity with higher extrusion or rolling speeds.
-Increase casting flexibility with easy alloy changes.
-No metal support.
Foundry ceramic filters are normally applied by placing them in a filter box. It is important to preheat the filter and the CFF filter box before use. During preheating, care should be taken to control both the rate of heating and the temperature distribution. This minimizes thermal shock and stress in the filters and the refractory of the filter box.
Before ceramic foam filter can be used, it must be completely wetted with molten metal. This happens when starting the casting operation. The amount of metallostatic pressure (or priming head) required to wet the filters depends on the alloy, metal temperature, preheating uniformity, preheating temperature, incoming metal quality, pre-filter treatments and filter cell size.