公开(公告)号：US11667999B2

公开(公告)日：2023-06-06

申请号：US16039564

申请日：2018-07-19

申请人： UES INC. ,  MIDWEST THERMAL-VAC INC ,  AKTIEBOLAGET SKF

发明人： Hitesh K. Trivedi ,  Frederick J. Otto ,  Timothy W. Piazza ,  Bryan A. McCoy ,  Rabi S. Bhattacharya

IPC分类号： C23C8/32 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  F16C33/62 ,  F16C33/64 ,  C23C8/58 ,  C21D6/00 ,  C21D9/40 ,  C21D1/06 ,  C21D1/25 ,  C22C5/04 ,  C22C19/03

CPC分类号： C23C8/32 ,  C21D1/06 ,  C21D1/25 ,  C21D6/005 ,  C21D6/007 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C23C8/58 ,  F16C33/62 ,  F16C33/64 ,  C21D2211/008 ,  C22C5/04 ,  C22C19/03 ,  F16C2202/04 ,  F16C2204/70 ,  F16C2240/06 ,  F16C2240/60

摘要： A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

公开(公告)号：US20180320262A1

公开(公告)日：2018-11-08

申请号：US16039564

申请日：2018-07-19

申请人： UES INC. ,  MIDWEST THERMAL-VAC INC ,  AKTIEBOLAGET SKF

发明人： Hitesh K. Trivedi ,  Frederick J. Otto ,  Timothy W. Piazza ,  Bryan A. McCoy ,  Rabi S. Bhattacharya

IPC分类号： C23C8/32 ,  F16C33/64 ,  C23C8/58 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C22C38/52

CPC分类号： C23C8/32 ,  C21D1/06 ,  C21D1/25 ,  C21D6/005 ,  C21D6/007 ,  C21D9/40 ,  C21D2211/008 ,  C22C5/04 ,  C22C19/03 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C23C8/58 ,  F16C33/62 ,  F16C33/64 ,  F16C2202/04 ,  F16C2204/70 ,  F16C2240/06 ,  F16C2240/60

摘要： A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.