Supply Shanxi quality precision casting sand mullite sand 16-30 mesh

Mullite sand is after a series of high-temperature roasting, crushing, screening, Raymond, iron, etc. These processes are made by using such a fabrication of mullite sand with a high aluminum content, low iron content, low hardness, low coefficient of thermal expansion characteristics, but also has a certain fire resistance and thermal and chemical properties, its nature more excellent. As unshaped refractories and precision sand casting, using its thermal stability, low coefficient of thermal expansion, high temperature strength of a series of advantages, used in precision casting and refractory industries as well as machinery, aerospace, weapons manufacturing, metallurgy, chemical industry, oil and other industries. Pouring casting shelling prone, deformation does not occur, the phenomenon does not occur easily reduced scale, the advantages of having a good finish. Use of the unique product uses a hard clay mineral resources, high temperature roasting, crushing, screening, Raymond, iron and other machining process and made with high aluminum, low iron content, high hardness, thermal expansion coefficient, high refractoriness stability and other excellent thermal and chemical properties of mullite series sand, powder. Molding material is mainly used for investment casting, plaster filler V method modeling and vacuum casting, and large, medium and small steel, bronze pieces, refractory lining, is also used in the manufacture of sodium silicate, refractory products, concrete materials etc., it is widely used in machinery, aviation, steel, metallurgy, oil, insulation, sintering, construction and other industries. Specifications mullite sand specifications (mesh): 8-16 mesh, 16-30 mesh, 30-60 mesh, 60-80 mesh, 80-120 mesh. Mullite powder Specification (mesh): 150--400 mesh Packing: 25kg, 50kg plastic woven bags, tons of bags