Zhangqiu Yixiang fireproof material Co. Ltd.   

Product Name: precision casting powder Precision casting powder is a kind of refractory materials. It is through high temperature roasting, crushing, sieving, Raymond, removing iron and other machining process and made of aluminum, with high iron low, high hardness, low coefficient of thermal expansion, high refractoriness, thermal stability and excellent series of mullite sand, powder. Chemical composition: Al2O3 ≥ 42-46%, SiO2 ≥ 51-53%, Fe2O3 ≤ 1.2-1.5%, Na2O+K2O ≤ 0.3, TiO2 ≤ 0.1, C2O+MgO ≤ 0.5. Physical properties: density ≥ 2.5g/cm3, true density, 2.6g/cm3, water content < 0.03%, refractory degrees C ≥ 1750, burning reduction ≤ 0.3-0.4%, dust degree ≤ 0.01-0.03%, pH value 7-9, the shell of hardness >8.0Mpa. Products are mainly used in melt film casting, molding and vacuum plaster filler V suction refractory cast and big, in, small pieces of steel, widely used in machinery, aviation, metallurgy and petroleum industries. Specification is 1-120 Mu Mo to sand, 100-400 Mo to powder, low price, ex factory price level 360 yuan / ton, 450 yuan / ton super, super special 680 yuan / ton. Welcome to negotiate to buy. Mobile phone: 13173028661 contact: Shi Xiang Tel: 83668997

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