GB2328953B - Improved steel hardening process - Google Patents

Improved steel hardening process

Info

Publication number
GB2328953B
GB2328953B GB9719033A GB9719033A GB2328953B GB 2328953 B GB2328953 B GB 2328953B GB 9719033 A GB9719033 A GB 9719033A GB 9719033 A GB9719033 A GB 9719033A GB 2328953 B GB2328953 B GB 2328953B
Authority
GB
United Kingdom
Prior art keywords
hardening process
improved steel
steel hardening
improved
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
GB9719033A
Other versions
GB9719033D0 (en
GB2328953A (en
Inventor
Jeffrey Kinder
Andrew Dodd
Andrew Higgins
Hiroshi Narai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nsk Rhp Europe Technology Co Ltd
NSK European Technology Co Ltd
Original Assignee
Nsk Rhp Europe Technology Co Ltd
NSK European Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nsk Rhp Europe Technology Co Ltd, NSK European Technology Co Ltd filed Critical Nsk Rhp Europe Technology Co Ltd
Priority to GB9719033A priority Critical patent/GB2328953B/en
Publication of GB9719033D0 publication Critical patent/GB9719033D0/en
Publication of GB2328953A publication Critical patent/GB2328953A/en
Application granted granted Critical
Publication of GB2328953B publication Critical patent/GB2328953B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/34—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
GB9719033A 1997-09-08 1997-09-08 Improved steel hardening process Expired - Lifetime GB2328953B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9719033A GB2328953B (en) 1997-09-08 1997-09-08 Improved steel hardening process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9719033A GB2328953B (en) 1997-09-08 1997-09-08 Improved steel hardening process

Publications (3)

Publication Number Publication Date
GB9719033D0 GB9719033D0 (en) 1997-11-12
GB2328953A GB2328953A (en) 1999-03-10
GB2328953B true GB2328953B (en) 2002-07-03

Family

ID=10818726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9719033A Expired - Lifetime GB2328953B (en) 1997-09-08 1997-09-08 Improved steel hardening process

Country Status (1)

Country Link
GB (1) GB2328953B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068933A2 (en) * 2000-03-14 2001-09-20 The Timken Company High performance carburizing stainless steel for high temperature use
US7186304B2 (en) 2004-06-02 2007-03-06 United Technologies Corporation Carbo-nitrided case hardened martensitic stainless steels
EP2739761B1 (en) 2011-06-02 2017-05-24 Aktiebolaget SKF Carbo-nitriding process for martensitic stainless steel and stainless steel article having improved corrosion resistance
DE102017210597A1 (en) * 2017-06-23 2018-12-27 Zf Friedrichshafen Ag Deep-acting carbonitriding
CN109338273A (en) * 2018-11-30 2019-02-15 中国航发沈阳黎明航空发动机有限责任公司 A method of improving 1Cr11Ni2W2MoV stainless steel nitriding layer quality
CN114962460A (en) 2021-02-25 2022-08-30 斯凯孚公司 Heat treated roller bearing ring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185640A (en) * 1966-12-21 1970-03-25 Ici Ltd Process for Casehardening Steels
GB1431747A (en) * 1973-04-10 1976-04-14 Boeing Co Process for carburizing high alloy steels
GB2205110A (en) * 1987-05-30 1988-11-30 Ewald Schwing Heat treatment of metallic workpieces
US5595610A (en) * 1991-06-07 1997-01-21 Kabushiki Kaisha Kobe Seiko Sho Method of manufacturing case-hardened parts with little distortion in heat treatment and superior strength in bending fatigue

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185640A (en) * 1966-12-21 1970-03-25 Ici Ltd Process for Casehardening Steels
GB1431747A (en) * 1973-04-10 1976-04-14 Boeing Co Process for carburizing high alloy steels
GB2205110A (en) * 1987-05-30 1988-11-30 Ewald Schwing Heat treatment of metallic workpieces
US5595610A (en) * 1991-06-07 1997-01-21 Kabushiki Kaisha Kobe Seiko Sho Method of manufacturing case-hardened parts with little distortion in heat treatment and superior strength in bending fatigue

Also Published As

Publication number Publication date
GB9719033D0 (en) 1997-11-12
GB2328953A (en) 1999-03-10

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20170907