Aluminum Casting Ceramic Foam Filters remove various forms of non-metallic slag and coarse intermetallic composite particles through the aluminum smelting process.
The content, shape, and distribution of inclusions in the alloy are important factors affecting its plasticity. Large particles of inclusions make the block structure discontinuous, reduce the air tightness of the material, and become the source of corrosion. During the manufacturing process, it often becomes the source of cracks, significantly reducing the strength and plasticity of the material.
Process engineers believe that some inclusions in aluminum alloys come directly from batches, most of which are produced during melting and casting, mainly oxide inclusions. All inclusions before casting are called primary oxidation inclusions.
According to the size, it can be divided into two categories:
The uneven distribution of large inclusions in the macrostructure makes the alloy structure discontinuous, reduces the compactness of the casting, becomes the source of corrosion cracking, and greatly reduces the strength and plasticity of the alloy.
The fine and scattered inclusions cannot be completely removed after refining. They increase the viscosity of molten metal and reduce the supply capacity of molten aluminum during solidification.
Aluminum Casting Ceramic Foam Filters are high-purity alumina-based products, available in a variety of sizes and grades for use by the aluminum industry. Excellent strength at molten aluminum temperature, durability, high thermal conductivity, and good chemical resistance. Alumina Ceramic Foam Filters are suitable for use in aluminum foundries to remove inclusions.
Advantage of Aluminum Casting Ceramic Foam Filters
- Simplified and shorten gating system, increasing yield.
- High strength without loose ceramic particles or powder
- Remove tiny slag effectively and purify the molten metal.
- Three dimensional connected mesh structure and high porosity
- Well-distributed molten metal and improve performance.
- Quiet laminar flow of molten metal.
- Smaller particles are captured on the filter cake created by the larger particles, finer particles are captured within the pores in the filter.