Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shapes, and then allowed to solidify with complex shapes, such as pistons, mill rolls, wheels, cylinder blocks, liners, pipe fittings, elbow, etc
The casting process can save much more metal, improve the production efficiency, expecially the investment casting or precision casting, can meet the accuracy without precision machining which can greatly reduce the production time.
The Acceptance Standard of casting parts are carried out as per customer’s requirements or the international standard & domestic standard. The Acceptance report are as follows:
1)The chemical compostion of material, such as gray iron casting, ductile iron casting, carbon steel investment casting, alloy steel precision casting, stainless steel silica sol casting, brass sand casting, zinc die casting, aluminum die casting, etc
2)The mechanical properties of casting, yield strength, tensile strength, hardness, elongation
3) The metallographic requirements of casting, carbide content, pearlite conent, graphite state, graphite length and so on, etc
4)The dimension of casting, must reach every dimension and accuracy or casting tolerance.
5)Casting Performance, such as leakage testing, hardness test, hydraulic testing, bending test, etc