由第二汽车制造厂、郑州机械研究所、北京农业机械化学院共同承担的“蠕墨铸铁排气管大量生产的研究”课题是“六五”期间国家重点科技攻关项目中的一个内容,最近由机械科学研究院主持在第二汽车制造厂召开鉴定会,通过了技术鉴定。核课题的主要任务是针对第二汽车制造厂生产的东风EQ14。汽车发动机上原用的在铸铁排气管 The project of “mass production of vermicular cast iron exhaust pipe” shared by No.2 Automobile Factory, Zhengzhou Machinery Research Institute and Beijing Agricultural Mechanization College is one of the key national key scientific and technological projects during the “Sixth Five-year Plan” Mechanical Science Institute presided over the second automobile factory held appraisal meeting, passed the technical appraisal. The main task of the nuclear issue is aimed at the Dongfeng EQ14 produced by the second automobile factory. The original car engine used in cast iron exhaust pipe