The basic requirements of the steel casting process: wood pattern: complete outline, no cracks, no damage, no incomplete, smooth surface. The size is per the drawings and check the size regularly.sand box: the size of the sand box should be determined according to wood pattern’s specifications, large and medium-sized sand box should be welded box.
Steel casting has high melting point and larger shrinkage rate and need to consider in the mold design.Pay attention to the thickness of the cavity due to the thinner area will be cooler than the thicker area.Thus,it may lead to fracture of the internal stress points.
1. Hardness is the material that suffer wear ability.carbon content determines the maximum hardness or hardenability that steel can obtain.
2. Ductility is the ability of metal deformation under tensile stress.Low carbon content and low hardness lead to high ductility of steel
3. Cast steel showed a similar composition of wear resistance of forging steel.Adding alloy elements such as chromium and molybdenum can significantly improve the wear resistance.
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