齿轮用8822H钢带状组织的产生与改善  

Formation and improvement of belt structure in 8822H steel for gears

作　　者：杨晟[1] 黄俊[1] 尚方[1] 庄军[1] 

机构地区：[1]南车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011

出　　处：《机车车辆工艺》2013年第5期1-3,共3页Locomotive & Rolling Stock Technology

摘　　要：带状组织主要是由于钢的成分偏析引起的。本文不从冶炼的角度分析如何消除带状组织,而是讨论在带状组织已经形成的情况下,如何通过热处理工艺对带状组织进行改善。同时分析带状组织对工件裂纹产生、有效硬化层深度以及加工性能的影响,并规定了8822H齿轮用钢带状组织的允许范围。Beh structure in a steel results from the components segregation. This paper studies how to improve the belt structure though heat treatment in case that the belt structure already exists rather than discusses how to eliminate the belt structure from the perspective of metallurgy. The impact of belt structure on cracking, effective case depth and machinability of workpieces are also analyzed, while the allowance of belt structure is specified for 8822H steel used to produce gears.

关 键 词：8822H钢 带状组织 改善 

分 类 号：TG156.81[金属学及工艺—热处理] TG156.31[金属学及工艺—金属学]