Zirconia/ SiC/ Alumina/Magnesia foamed Ceramic Foam Filters as alloy/ steel/ iron/ copper/ aluminum casting/foundry molten metal filtration

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China

Ceramic Foam Filters for Casting
Zirconia/ SiC/ Alumina foamed Ceramic Foam Filters as alloy/ steel/ iron/ copper/ aluminum casting/foundry molten metal filtration.
Ceramic Foam Filter is just developed as a new type of molten metal filters to decrease casting flaw in recent years. Foamed ceramics have the characters of light weight, high strength, large specific surface areas, high porosity, excellent thermal shock resistance and chemical corrosion resistant. With the distributing pores reticular structure, they are able to increase the surface areas, and absorb the sinter, the liquid metal becomes more pure, waster quality problems such as sand pore and air pore are much less, and the cast quality becomes much better.
Function:
AceChemPack Ceramic Foam Filters offer the best way to eliminate inclusions, foreign materials that are a major source of quality problems in casting. and help you meet ever increasing demands for quality.
Get rid of the impurity, refractory scrap, solid refractory alloy, sinter, in the molten metal liquid when casting the products, get rid of turbulent flow, reduce the air cavity of castings, raise the quality of cast. So our ceramic foams (foamed ceramics) are extensively applied in the metallurgy plant of casting /foundry of steel, iron, copper, alloy and aluminum. Increase metal cleanliness, Improve fluidity, castability, machinability, yield, Reduce rejects and rework, can remove a much greater fraction of fine particulate
Item: Foam-SiC (Silicon Carbide Ceramic Foam Filters)
Silicon carbide Ceramic Foam Filter is thermally conductive (ceramic foam filters are insulating oxide ceramics). Therefore, there is less temperature gradient between the hot and cold sides of the filter. This means less superheat is required in the hearth, and less sludging occurs because temperature can be maintained in the dip-out well. Actual temperature gradients depend on furnace design, well area, metal throughput, and filter cleanliness. Gradients less than 5C exist with steady metal flow - for example, during continuous dip-out, ladling, or pouring - and when oxide buildup, which is insulating, is removed periodically
Applications: Filters for Molten Iron & Alloy, nodular cast iron castings, grey iron castings and malleable castings, and for the filtration of non-ferrous metals
Material: SiC (Silicon Carbide)
Working Temperature: 1500C
Pore Size: 10,20,30,60 PPI
Item: Foam-Zr (Zirconia Ceramic Foam Filters)
Applications: Filters for Molten stainless Steel, Alloy steel & other metal in precision molding.
Material: Zirconia(ZrO2)
Working Temperature: 1720C
Pore Size: 10,20,30,60 PPI
Item: Foam-AL (Alumina Ceramic Foam Filters)
Applications: Filters for Molten Aluminum & Alloy: (aluminium oxide)
Material: Alumina (Al2O3)
Working Temperture: 1200C
Pore Size: 10,20,30,60 PPI
Item: Foam-Mg (Magnesia Ceramic Foam Filters)
Due to magnesium alloy is more active than a lot of other nonferrous metal, molten magnesium alloy can easily react with the SiO2, Al2O3 and liquate alumina ceramic filter rapidly. So that alumina ceramics is unable to filter magnesium alloy. We have successfully produced magnesia foam ceramic filter to meet the need of magnesium alloy recently.
Material : MgO,
Applications: specialized for the casting filters of magnesia alloy.
Product Selection
1. Select suitable temperature filter according to kinds of alloy, the filter should not exceed temperature and damage.
2 .Select suitable bore density, purification is fit in with quality of casting.
3. Select dimension of suitable filter, not increase time of moulding.
4. Reduce the second dreg.
5. Porosity: filter 80-90% when founding

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