提高汽车制动鼓耐磨性的研究  

Study on Increasing Wear-resistant of Autom obile Brake Drum

作　　者：陈翌庆[1] 苏勇[1] 黄斌 叶天汉 

机构地区：[1]合肥工业大学材料科学与工程学院,安微合肥230009 [2]江淮铸造有限责任公司,安徽合肥231137

出　　处：《热加工工艺》2000年第3期28-29,共2页Hot Working Technology

摘　　要：通过分析汽车提速后制动鼓耐磨性下降的原因 ,选用成分 w( % )为 :3 .2～ 3 .3C,1.9～ 2 .1Si,0 .8～ 1.0Mn,0 .3～ 0 .4 Cr,0 .4～ 0 .6Cu的合金材质制作汽车制动鼓以提高其耐磨性 ,改进后的汽车制动鼓组织中珠光体量>95% ,硬度为 2 0 0～ 2 2 0 HB。Though analysing the cause of poor resistance to wear in automobile brake drum for automobile sped up, new alloy material,whose composition( mass,% ) was:3.2～ 3 .3C,1.9～ 2 .1Si,0 .8～ 1.0 Mn,0 .3～ 0 .4 Cr,0 .4～ 0 .6Cu, was chosen to make automobile brake drum to increase the wear-resistance.The amount of pearlite of the microstructure in the improved automobile brake drum was more than95% ,and hardness2 0 0～ 2 2 0 HB.The wear-resistance of the brake drum had been improved greatly.

关 键 词：制动鼓 耐磨性 合金铸铁 汽车 

分 类 号：U463.55[机械工程—车辆工程]