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哈尔滨汽轮机厂铸钢件粘砂很严重。浇注后的铸件表面牢固的粘结一层白色烧结的型砂,紧贴着又是一层红色粉末状和黑色微粒层的砂子,使靠近铸件50毫米厚的型砂全被烧毁不
Harbin Steam Turbine Factory castings sticky sand is very serious. Casting the casting surface firmly bonded to a layer of white sintered sand, close to it is a layer of red powder and black particles of sand, so close to the casting 50 mm thick sand was all burned