Fused Ceramic Sand is the custom ceramic particles with a spherical shape, high refractoriness and low thermal expansion being made by spraying the melted calcined bauxite. It provides a very simple but efficient way for the foundry-men to improving the quality of the castings, reducing the production cost and avoiding environmental pollution, because of that it
Ceramic sand , technically as fused ceramic sand for foundry, is made from calcined bauxite which main content is aluminum oxide, processed by melting, blowing, sieving and blending. Ceramic sand has excellent properties, including spherical shape, high refractoriness, good crush resistance, inert chemical characteristics, high reclamation yields, etc. To solve the problem of metal penetration
Pue to its unique physical and chemical properties,the sand has the following charateristics and advantages: Prevention of sand expansion defects,especially finning/veining Elimination of gas-forming additives Prevention of reactions between metal and moulding sand Prevention of metal penetration Reduction of core weight Improved flowability of moulding sand Influence on the formation of microstructure Pouring of thin-walled
Ceramic Foundry Sand Property Chemical Analysis[%] Al2O3 70-75 SiO2 8-20 Fe2O3 ≤3 TiO2 ≤3.5 CaO ≤0.45 MgO ≤0.35 K2O ≤0.33 Na2O ≤0.08 Physical Properties Grain shape Spherical Ball Roundness 90% Refractoriness: >1790℃ Shape Coefficient ≤1.1 Thermal Expansion Ratio 0.13%(Heated up for 10 min at 1000℃) Thermal expansion coefficient 6×10-6 /℃(20-1000℃) Thermal conductivity 0.698W/M.K(1200℃) Specific Gravity::
Ceramic Foundry sand ,also called as Fused Ceramic Sand is made from high quality bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc.At the present, Ceramsite is acknowledged in the
Ceramic Foundry sand is a new type casting material for precision casting, coated sand and self hardening sand etc.At the present, Ceramsite is acknowledged in the worldwide as the newest and the best ideal sand for the foundries and has a very wide feasibility of applications for the future development. Chemical and Physical Composition
