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以某轻型载货车的制动器为研究对象,重点是制动器摩擦片和制动鼓两个零部件。讨论了摩擦片和制动鼓的台架和道路试验的热衰退模式。对制动器进行了热容量校核、对制动鼓进行了受力分析,排除了部分故障原因。从摩擦片材料和制动鼓微量元素的选择等几个方面讨论提升其抗热衰退性能的方案。然后通过台架对比试验确定最优方案,最后按此方案进行大量道路试验以及定点投放市场的验证,性能提升明显。最终得出,通过优化摩擦片基材和制动鼓化学成分,可有效改进制动器的抗热衰退性能。
Taking the brake of a light truck as the research object, the two parts of the brake friction plate and the brake drum are emphasized. Discusses the friction plate and brake drum bench and road test thermal decay mode. Thermal capacity of the brake was checked, the brake drum was subjected to force analysis, ruled out some of the causes of failure. From the friction material and brake drum trace elements such as the choice of several aspects to discuss its anti-heat recession performance of the program. Then through the bench comparison test to determine the optimal program, and finally according to this program a large number of road tests and fixed-point market validation, significant performance improvement. Finally, it is concluded that by optimizing the friction lining substrate and brake drum chemistry, the brake’s resistance to thermal degradation can be effectively improved.