提高机床铸件质量的研究是“六五”期间国家38项重点攻关项目的分子项,也是机械工业部机床工具工业局工艺攻关的组成部分。本项攻关任务由北京机床研究所负责,共有15个单位参加。其后,机床工具工业局又组织一些单位,参加了“提高冲天炉熔炼水平,获得高温优质铁水的研究”等项工 Research on improving the quality of machine tool castings is a sub-item of 38 national key research projects during the “Sixth Five-Year Plan” period. It is also an integral part of the technological process of the Machine Tool Industry Bureau of the Ministry of Machinery Industry. The task of this research by the Beijing Machine Tool Research Institute, a total of 15 units to participate. Subsequently, the Machine Tool Industry Bureau also organized a number of units to participate in the “raise the level of cupola melting, access to high-temperature high-quality hot metal,” and other items