摘要
针对汽车发动机排气管材质及性能要求,研制了一种薄壁高强韧铸态球墨铸铁排气管,确定了其化学成分和铸造工艺。经3a生产应用考核,铸态下生产QT420 15排气管的合格率达100%,减少了热处理工序;与原工艺相比,按此工艺生产可直接获500元/t的经济效益。
According to the requirements of automobile exhaust pipes on material and its properties, a high strength and toughness nodular cast iron of thin section castings has been developed. The chemical composition and cast process was defined. 3 years application showed that the percent of pass for producing ascast QT42015 exhaust pipes was one hundred percent. The heat treatment process was not necessary and the efficiency was improved.
出处
《机械工程材料》
CAS
CSCD
北大核心
2003年第10期31-33,共3页
Materials For Mechanical Engineering
关键词
球墨铸铁
排气管
力学性能
nodular cast iron
exhaust pipe
mechanical property
