由我院和第二汽车制造厂、郑州机械研究所共同承担的“蠕墨铸铁排气管大量生产的研究”课题是“六五”国家三十八项重点科技攻关项目的一个分项。经两年的试验研究,已于1984年5月正式在二汽铸造一厂投入大量流水生产,並于1985年6月底在二汽召开鉴定 The “Research on mass production of vermicular cast iron exhaust pipe” jointly undertaken by our institute, the Second Automobile Manufacturing Factory, and the Zhengzhou Institute of Mechanical Research is one of the 38 key scientific and technological projects in the country. sub option. After two years of trial and research, a large amount of flowing water was officially put into production at the No. 1 Casting Plant in May 1984, and it was certified at the Second Automobile Works at the end of June 1985.