China manufacturer Ceramic Foundry Sand for moulding
Ceramic Foundry sand is a kind of spherical refractory particles made of high-quality bauxite as raw material, which is made by electro-fusion, granulation and sieving.
Ceramic Foundry sand is a kind of spherical refractory particles made of high-quality bauxite as raw material, which is made by electro-fusion, granulation and sieving.
Tabular aluminas grit is made of Al2O3, after ingredients, grinding and forming, smelting in high temperature furnace turned to α- Al2O3.
Boron carbide is hard black with glossy crystals. Hardness is lower than industrial diamond, but higher than silicon carbide. It is less vulnerable than most pottery. It has a large thermal neutron capture cross section. Strong resistance to chemistry. The erosion of hydrogen fluoride and nitric acid. Soluble in molten base, insoluble in water and acid.
Walnut shell sand is made of high quality walnut shell, through crushing, polishing, steaming and washing, high temperature treatment, two times screening processing. It is high hardness, wear resistance, good pressure resistance, resistance to pressure of 23.4kgf, stable chemical property, do not dissolve in acid and alkali , excellent absorption sewage interception capability, adsorption rate is 27 – 50%, with good hydrophilicity, oil resistance, etc.