高锰钢铸件用新型复合砂高锰钢铸件粘砂问题是一个长期未能彻底解决的问题。为防止锰钢铸件粘砂，获得表面光洁的铸件，国外往往采用价格昂贵的铬铁矿砂、橄榄石砂等特种砂，而国内这些材料资源有限且价格昂贵，为此，沈阳铸造材料厂从国内资源出发，经过３年的研究，开发... High manganese steel castings with a new type of composite sand High manganese steel castings sticky sand problem is a long-term failure to completely solve the problem. In order to prevent the sticking sand of manganese steel castings and get the surface smooth castings, foreign countries often use special expensive sand such as chromite sand and olivine sand. However, due to limited domestic resources and expensive materials, Shenyang Casting Material Factory from Domestic resources, after three years of research, development ...