SHANGHAI ZHUYOU ZIRCONIUM&TITANIUM NEW MATERIAL CO.,LTD

Foundry-grade chromite sand/flour (CMM)

Casting Auxiliary Materials

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The main chemical component of foundry-grade chromite sand/flour is Cr2O3. It maintains a stable volume when heated at high temperatures and has a high thermal conductivity. When in contact with molten metal, it not only exhibits excellent resistance to alkaline slag but also does not react with iron oxides, thus avoiding thermochemical sand adhesion. The thermal conductivity of chromite sand is several times higher than that of silica sand, which can increase the cooling rate of castings. Its high refractoriness, low thermal expansion coefficient, and non-reactivity with metal oxides effectively prevent casting defects such as veining and sand inclusion, making it suitable for sand molding and core making in large steel castings. Chromite ore powder is suitable as a refractory material for the coating of high manganese steel and wear-resistant steel castings.
Casting grade white fused alumina sand/flour(WFA)

Casting Auxiliary Materials

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The main crystalline phase of casting grade white corundum sand/flour is α-Al2O3, which is white in color and characterized by high refractoriness, low porosity, good volume stability, and excellent thermal shock resistance. It can be used as a surface shell material in lost wax precision casting of alloy steel, carbon steel, and large steel castings. It exhibits excellent thermal stability of the mold shell, high-temperature chemical stability, and good shell detachment and collapsibility.
Casting grade brown fused alumina sand/flour (BFA)

Casting Auxiliary Materials

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The main crystalline phase of casting grade brown fused alumina sand/flour is α-Al2O3. Brown fused alumina has high hardness, high melting point, high thermal conductivity, stable volume at high temperatures, low cracking tendency, and good acid and alkali resistance. It can be used as a surface shell material in lost wax precision casting of ordinary alloy steel, carbon steel, and large steel castings.
slag remover（SR-M）

Casting Auxiliary Materials

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The slag remover, sourced from Yasukawa Prefecture, Japan, is an environmentally friendly and highly efficient slag collector. It is used to remove slag from the surface of casting solutions in foundries and steel plants, ensuring that the casting solutions are free of impurities and preventing oxidation. Additionally, it can serve as a thermal insulation material, exhibiting excellent performance.
Fused silica sand/flour (FSS)

Casting Auxiliary Materials

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Fused silica sand/flour is produced by melting refined quartz sand at high temperatures (electrofusion temperature of 1800°C-2000°C). It exhibits stable chemical properties, resistance to acids and alkalis, high temperature tolerance, low expansion coefficient, high purity, high insulation, excellent thermal stability, and extremely low thermal conductivity. It is primarily used as shell-making material for precision lost wax casting (carbon steel, low alloy steel, thin-walled complex parts), refractory materials, glass ceramics, and in the electronics industry.
Magnesia sand/flou (MGO)

Casting Auxiliary Materials

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Magnesia sand/flour, primarily composed of MgO, has a refractoriness exceeding 1700 degrees Celsius. It is suitable for precision casting of high manganese steel and alloy steel, resulting in castings with smooth surfaces, clear contours, and precise dimensions.
Casting grade mullite sand/flour（MLS）

Casting Auxiliary Materials

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Mullite sand/flour for Casting has high refractoriness (>1700 degrees), low thermal expansion coefficient, and good thermochemical stability. It is widely used as a two-layer shell material in lost wax investment casting for carbon steel, stainless steel, heat-resistant steel, and alloys such as aluminum and titanium.