大功率球墨铸铁曲轴的生产  

Fabrication of a Heavy Duty Nodular Iron Crankshaft

作　　者：张红梅 ZHANG Hongmei(Jiangsu Songlin Auto Parts Co.,Ltd.,Taixing 225400,Jiangsu China)

机构地区：[1]江苏松林汽车零部件有限公司,江苏泰兴225400

出　　处：《铸造工程》2020年第1期46-49,共4页Foundry Engineering

摘　　要：曲轴要求具有高强度、高塑性。通过合理的原材料选择和成分,制定可行的熔炼工艺和孕育处理工艺,以及严格控制整个生产过程,成功生产出了六缸大功率QT850-4.5曲轴。检测结果表明:曲轴的抗拉强度高于850MPa,断后伸长率大于4.5%,满足高强度高韧性大功率曲轴的技术要求。The crankshaft needs to provide high strength and high plasticity.The heavy duty six-cylinder QT850-4.5 crankshaft has been successfully fabricated by reasonable selections of raw materials and composition,institution of feasible smelting and inoculation treatment processes,as well as by close control of whole productive process.From the testing results it was seen that the crankshaft exhibited tensile strength above 850 MPa and elongation more than 4.5%,which conformed with the requirements.

关 键 词：QT850-4.5球铁 大功率六缸曲轴 铸造 

分 类 号：TG255[金属学及工艺—铸造]