低合金化灰铸铁汽车制动鼓的研制  

Development of Brake Drum of Microalloyed Gray Cast Iron

作　　者：黄笑梅[1] 程和法[2] 苏勇[2] 陈翌庆[2] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009 [2]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《汽车工艺与材料》2002年第1期22-24,共3页Automobile Technology & Material

摘　　要：对普通HT200材质汽车制动鼓的宏观及微观失效行为进行分析后,认为导致制动鼓过早失效的原因是材质强度过低不足以抵抗制动时强烈摩擦应力及热疲劳应力。为此,通过加入Cu,Cr元素进行低合金化并配合适当的孕育处理工艺,研制出具有良好显微组织和力学性能的制动鼓。After the macro and micro-examination of the damaged wear brake drum of HT200, it was believedthat the cause for premature failure of HT200 brake drum was that its strength was not high enough to withstandheavy wear stress and thermal fatigue stress during brake of automobile. Based on this, the brake drums with afavorable microstructure and high mechanical properties were developed by addition of Cr and Cu alloy element,and with suitable modification.

关 键 词：汽车 低合金化 灰铸铁 制动鼓 显微组织 力学性能 试验 

分 类 号：U463.55[机械工程—车辆工程] TG251[交通运输工程—载运工具运用工程]