科技创新汽车用排气歧管材料的应用现状及发展方向.pdfVIP

学兔兔 oct．2008 铸 造 F0UNDRY ·10o1· VOI．57 NO．10 ， ■ ● ^ ● ^ ■● l ● ■ {专题综述 } 、^■ ‘-■^ -’■ ■n● ^¨_^，’ 汽车用排气歧管材料的应用现状及发展方向 崔晓鹏 ，刘海峰 ，王成刚 ，曹占义 (1．长春工业大学材料科学与工程学院，吉林长春 130012；2．一汽铸造有限公司技术中心，吉林长春 130062； 3．吉林大学材料科学与工程学院，吉林长春 130025) 摘要：综述了汽车用排气歧管材料的主要性能和发展历程。随着汽车发动机压缩比提高，排气温度随之提高，排气歧 管材料经历了灰铸铁、球墨铸铁、硅钼铸铁和高镍球铁这一发展过程，文中讨论了上述材料的特点。结合一汽铸造有 限公司硅钼球铁和高镍球铁排气歧管的研究与开发，论述了排气歧管材质研发存在的问题和主要发展方向。 关键词：排气歧管；铸铁；硅钼球铁；高镍球铁 中图分类号：TG1 13．25；TG1 13．26 1文献标识码：A 文章编号：1001—4977(2008)10—1001—04 Present Status and Development Trend of Exhaust Manifold Materials for Automotive Engine CUI Xiao—peng ，LIU Hai-feng ，WANG Cheng—gang ，CAO Zhan—yi。 (1．Material Science＆Engineering School，Changchun University of technology，Changchun 13001 1，Jilin，China；2．RD Center，FAW Found~Co．，Ltd．，Changchun 130062，Jilin，China 3．Material ScienceEngineering School，Jilin University，Changchun 1 30025，Jilin，China) Abstract：The major properties of exhaust manifoId materials for Automotive engine and their developing process were summarized in this paper．Due to the exhaust temperature increases with the increasing compression ratio of the engine，the exhaust manifoId materials had experienced severaI stages including grey cast iron，ductile iron，silicon—molybdenum ductile iron and high nickel ductile iron．The characteristics of different materials were reviewed．Combining with the research and development of FAvV Found~ Co．，Lld。f0r silicon．molybdenum and high nickeI ductile iron．the problems existed in the research and development of exhaust manifoId