公开(公告)号：WO2015090958A1

公开(公告)日：2015-06-25

申请号：PCT/EP2014/076354

申请日：2014-12-03

Applicant: AKTIEBOLAGET SKF

Inventor： GEGNER, Juergen

IPC: C21D7/06 ,  C21D8/02 ,  C21D9/36 ,  C21D9/38 ,  C21D9/40 ,  F16C33/32

CPC classification number: C21D7/06 ,  C21D1/10 ,  C21D1/26 ,  C21D7/04 ,  C21D7/08 ,  C21D9/36 ,  C21D9/38 ,  C21D9/40 ,  C21D2211/002 ,  C21D2211/008 ,  C21D2261/00 ,  F16C33/64 ,  F16C2204/60 ,  F16C2220/70 ,  F16C2223/10 ,  F16C2223/18 ,  F16C2223/60 ,  F16C2240/18 ,  Y02P10/253

Abstract: The present invention relates to a process for treating a contact surface of a steel component of a rolling contact loaded machine element, the process comprising: providing a steel component having a surface layer predominantly having a martensitic and/or bainitic microstructure and a contact surface adjacent the surface layer; cold-working said contact surface to introduce a compressive residual stress of at least 400 MPa to a depth of at least 50 microns from said contact surface; machining said contact surface; and heating the cold-worked and machined steel component below the tempering or transformation temperature of the steel.

Abstract translation: 本发明涉及一种处理滚动接触加载机构元件的钢部件的接触表面的方法，该方法包括：提供具有主要具有马氏体和/或贝氏体组织的表面层和相邻的接触表面的钢部件 表层; 冷加工所述接触表面以将至少400MPa的压缩残余应力从所述接触表面引入至少50微米的深度; 加工所述接触面; 并将冷加工和加工的钢部件加热到钢的回火或转变温度以下。