Applications And Filtration Performance Of Zirconia Ceramic Foam Filters

1. Applicable Metal Types

Primarily suitable for the melt filtration of steel castings, large iron castings, high-temperature master alloys, and aerospace castings. It can also be utilized in the continuous casting of copper-magnesium alloys and the low-pressure casting of non-ferrous metal alloys.

 

2. Filtration Mechanism

By means of its three-dimensional porous network structure, the filter rectifies the turbulent flow of the molten metal, converting unstable flow into stable laminar flow. Simultaneously, it removes inclusions through a combination of mechanical interception, filter cake formation, and adsorption.

 

3. Process Benefits

Enhancement of Casting Quality: Efficiently filters out micron-scale slag and refractory debris, thereby reducing surface defects in castings while improving surface hardness and tensile strength.

Optimization of Gating Systems: Simplifies the gating system, increases mold cavity utilization efficiency, and mitigates the erosive impact of the molten metal on the mold cavity; this can lead to a reduction in the scrap rate of 15–30%.

Cost Reduction: Minimizes machining losses and cleaning time, accelerates delivery efficiency, and extends the service life of cutting tools.