Precision casting casting is collectively called lost-wax casting,including: (1). water glass casting process(cryogenic lost wax), the surface texture is so so, dimension tolerance we could reach is CT7-8.The main material is Carbon steel, Alloy steel; the weight controled is about 0.2-80kg.(2) .Silica sol casting process(mesothermal lost wax), the surface texture is better, dimension tolerance we could reach is CT 5-6. The main material is stainless steel, Carbon steel, Alloy steel. The weight controled is 0.1-60kg.(3). Lost foam casting, surface texture is semi-skilled than lost wax casting process, dimension tolerance we could reach is CT8-9. The main material is Gray Iron, Dutile Iron, Hight Cr Cast Iron, Resistance cast iron. The weight controled is 0.2-100kg. |