提速铁路客车轴承锻件快速冷却装置  

Cooling rapidly device of speeding railway passenger train bearing forging

作　　者：李爱民 王鑫 

机构地区：[1]哈尔滨轴承集团公司锻压分厂,黑龙江哈尔滨150036

出　　处：《哈尔滨轴承》2010年第4期4-6,共3页Journal of Harbin Bearing

摘　　要：目前在铁路客车轴承锻造过程中,为了降低生产成本,采用锻后喷雾冷却的方式,一般要经过3—4min才能降到550—650℃,尤其在高温区的降温速率低,缺乏冷却控制手段,有可能使网状碳化物达到临界值,对轴承的使用寿命有一定影响。针对这一问题,设计了锻后快速冷却装置并加以实施,改善了网状碳化物,提高了轴承寿命。At present in process of railway passenger bearing forging,in order to reduce the production cost,spray cooling was used after forging,normallthe temperature could be reduced to 550-650 ℃ after 3-4 minutes,in particular in the area of high temperature Cooling speed was low and lack of cooling means of control,it is possible to reach the critical value of network carbide,so exerting an influence on the bearing life.In view of this question,quickly cooling device after forging was designed and implemented,so the network carbide and the bearing life were improved.

关 键 词：提速 铁路客车轴承 轴承锻件 快速冷却装置 网状碳化物 降低生产成本 轴承寿命 使用寿命 喷雾冷却 控制手段 降温速率 锻造过程 临界值 高温区 问题 设计 

分 类 号：TH133.3[机械工程—机械制造及自动化]