铁路客车轴承套圈锻后控冷工艺  

Controlled Cooling Process in Forging of Rings for Passenger Train Bearings

作　　者：包顺毅 涂洪平 

机构地区：[1]南京浦镇恩梯恩铁路轴承有限公司,南京210031 [2]铁道部驻南京车辆验收室,南京210031

出　　处：《轴承》2013年第5期20-23,共4页Bearing

摘　　要：分析铁路客车轴承GCr18Mo高碳铬轴承钢套圈锻后采用空冷、雾冷存在的网状碳化物超标、表面裂纹等缺陷,介绍了采用以热水为冷却介质的锻后控冷工艺,并进行了对比试验。结果表明,锻后空冷工艺可以有效抑制网状碳化物的产生,改善锻件内在质量,且更加节能环保。The defects such as reticular carbide, surface flaw are analyzed during air -cooling, spray -cooling of forging of bearing ring made of GCr18Mo steel. The post - forging controlled cooling technology is introduced taking hot water as cooling medium, and comparative test is conducted. The results show that the controlled cooling technology is effective to restrain the formation of reticular carbide, improving the quality of forgings and saving energy.

关 键 词：铁路客车轴承 锻造 表面淬火 控冷工艺 网状碳化物 

分 类 号：TH133.33[机械工程—机械制造及自动化] TG156.3[金属学及工艺—热处理]