节约型大型铸钢件生产的思考

Heavy steel castings are high-tech products assembling materials, metallurgy, casting, etc, which are symbols of the level of heavy industries. The feasible schemes for economizing manufacturing heavy steel castings were analyzed. The effects of riser design, sand model, sand coating, oxidation and deformation of casting during heat treatment, machining allowance, etc, on the economizing manufacture heavy steel castings were reviewed. Realization of economizing manufacture of heavy steel castings will improve output coefficient of metal, shorten manufacturing period, save energy and resource, reduce pollution, and improve the competitiveness of enterprises.