GB9726071D0 - Case hardening of steels - Google Patents

Case hardening of steels

Info

Publication number
GB9726071D0
GB9726071D0 GBGB9726071.5A GB9726071A GB9726071D0 GB 9726071 D0 GB9726071 D0 GB 9726071D0 GB 9726071 A GB9726071 A GB 9726071A GB 9726071 D0 GB9726071 D0 GB 9726071D0
Authority
GB
United Kingdom
Prior art keywords
steels
case hardening
hardening
case
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.)
Withdrawn
Application number
GBGB9726071.5A
Other versions
GB2328448A (en
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 European Technology Co Ltd
RHP Bearings Ltd
Original Assignee
NSK European Technology Co Ltd
RHP Bearings 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 European Technology Co Ltd, RHP Bearings Ltd filed Critical NSK European Technology Co Ltd
Publication of GB9726071D0 publication Critical patent/GB9726071D0/en
Priority to AU83518/98A priority Critical patent/AU8351898A/en
Priority to PCT/GB1998/002120 priority patent/WO1999005340A1/en
Publication of GB2328448A publication Critical patent/GB2328448A/en
Withdrawn legal-status Critical Current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
    • C23C8/08—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 only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • 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
    • C23C8/80—After-treatment

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)
GB9726071A 1997-07-21 1997-12-09 Case hardening of steels containing cobalt and chromium Withdrawn GB2328448A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU83518/98A AU8351898A (en) 1997-07-21 1998-07-17 Case hardening of steels
PCT/GB1998/002120 WO1999005340A1 (en) 1997-07-21 1998-07-17 Case hardening of steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9715345A GB9715345D0 (en) 1997-07-21 1997-07-21 Case hardening of steels

Publications (2)

Publication Number Publication Date
GB9726071D0 true GB9726071D0 (en) 1998-02-04
GB2328448A GB2328448A (en) 1999-02-24

Family

ID=10816197

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9715345A Pending GB9715345D0 (en) 1997-07-21 1997-07-21 Case hardening of steels
GB9726071A Withdrawn GB2328448A (en) 1997-07-21 1997-12-09 Case hardening of steels containing cobalt and chromium

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9715345A Pending GB9715345D0 (en) 1997-07-21 1997-07-21 Case hardening of steels

Country Status (1)

Country Link
GB (2) GB9715345D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6576877B2 (en) * 2001-09-14 2003-06-10 The Boeing Company Induction processing with the aid of a conductive shield

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599155A (en) * 1982-07-09 1984-01-18 Kawasaki Steel Corp Manufacture of material for tool for manufacturing seamless steel pipe
JPS59143078A (en) * 1983-02-04 1984-08-16 Kawasaki Steel Corp Production of tool material for making pipe
US5211768A (en) * 1990-11-15 1993-05-18 Degussa Aktiengesellschaft Method of nitriding work pieces of steel under pressure

Also Published As

Publication number Publication date
GB2328448A (en) 1999-02-24
GB9715345D0 (en) 1997-09-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)