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70ppi Ceramic foam Filter
Foundry is a kind of porous ceramic product with an open porosity as high as 80-90% and a volume density of only 0.3-0.6g/cm3. It has a unique three-dimensional network framework and interpenetrating pore structure. Filtering and removing impurities by foam ceramics can significantly improve the quality of ingots and reduce the rate of rejects.
Inclusions refer to any solid or liquid exogenous impurities that exist above the liquidus temperature.
Common non-metallic inclusions include oxides, carbides, borides, etc. In addition, some undesirable intermetallic compounds will appear in high alloy melts. If you want contact ceramic foam filters suppliers.
Non-metallic inclusions in lead melt include
1. Oxide: alumina, magnesium oxide, calcium oxide, etc.
2. Coarse Ti-B particles of the residual refiner Al-Ti-B master alloy.
3. Refractory brick fragments, falling launders and protective coatings on tools.
Inclusions and gases in the metal have a significant impact on the strength, fatigue resistance, corrosion resistance, and stress corrosion cracking performance of the material.
Effectively controlling the oxidized inclusions in the melt to improve the quality of cast rods and rolled plates has become a common goal pursued by the metallurgy, casting and material industries of all countries.
Using 70ppi Ceramic foam Filters
Foundry can remove most of the inclusions in the aluminum alloy melt.
Aluminum and its alloys are easy to oxidize and absorb gas during the process of smelting and pouring, and defects such as inclusions and pores are easily formed during the die-casting process, which are unfavorable to the alloy structure, thereby reducing the mechanical properties and corrosion resistance of the alloy, and reducing the yield.
Therefore, reasonable control of the melting process and improvement of the quality of the aluminum melt are the key to improving the quality of aluminum die castings.
70ppi Ceramic foam Filter
Foundry
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