ATE131217T1 - A HARD AUSTENITIC STAINLESS STEEL SCREW AND METHOD FOR MAKING SAME. - Google Patents

A HARD AUSTENITIC STAINLESS STEEL SCREW AND METHOD FOR MAKING SAME.

Info

Publication number
ATE131217T1
ATE131217T1 AT91308660T AT91308660T ATE131217T1 AT E131217 T1 ATE131217 T1 AT E131217T1 AT 91308660 T AT91308660 T AT 91308660T AT 91308660 T AT91308660 T AT 91308660T AT E131217 T1 ATE131217 T1 AT E131217T1
Authority
AT
Austria
Prior art keywords
stainless steel
austenitic stainless
steel screw
making same
hard austenitic
Prior art date
Application number
AT91308660T
Other languages
German (de)
Inventor
Akira Yoshino
Haruo Senbokuya
Masaaki Tahara
Kenzo Kitano
Teruo Minato
Original Assignee
Daido Hoxan Inc
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 Daido Hoxan Inc filed Critical Daido Hoxan Inc
Application granted granted Critical
Publication of ATE131217T1 publication Critical patent/ATE131217T1/en

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)
  • Forging (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

An austenitic stainless steel screw having excellent non corroding properties and a high level of hardness is disclosed, together with a method for manufacture of such screws. A hard nitrided layer is formed on the surface of the austenitic stainless steel screw, and the nitrided layer is removed over predetermined parts such as the head and part of the shank of the screw.
AT91308660T 1991-09-20 1991-09-20 A HARD AUSTENITIC STAINLESS STEEL SCREW AND METHOD FOR MAKING SAME. ATE131217T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91308660A EP0532806B1 (en) 1991-09-20 1991-09-20 A hard austenitic stainless steel screw and a method for manufacturing the same

Publications (1)

Publication Number Publication Date
ATE131217T1 true ATE131217T1 (en) 1995-12-15

Family

ID=8208403

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91308660T ATE131217T1 (en) 1991-09-20 1991-09-20 A HARD AUSTENITIC STAINLESS STEEL SCREW AND METHOD FOR MAKING SAME.

Country Status (5)

Country Link
EP (1) EP0532806B1 (en)
AT (1) ATE131217T1 (en)
DE (1) DE69115274T2 (en)
DK (1) DK0532806T3 (en)
ES (1) ES2082151T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014122367A (en) * 2012-12-20 2014-07-03 Daido Steel Co Ltd Vacuum nitriding treatment method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155078A5 (en) * 1971-10-06 1973-05-18 Kolomensky Teplovozostro Spheroidal cast irons - strengthening by thermal and nitriding processes
AU3773478A (en) * 1977-09-27 1980-01-10 Deutsher Pty Ltd Corrosion resistant self-drilling, thread-cutting screws
SE441933B (en) * 1984-02-14 1985-11-18 Ibm Svenska Ab COOLING AND HEATING PROCESS FOR A MACHINE, EXAMPLE A PRESSURE HAMMER
EP0408168B1 (en) * 1989-07-10 1994-06-08 Daidousanso Co., Ltd. Method of pretreating metallic works and method of nitriding steel

Also Published As

Publication number Publication date
EP0532806A1 (en) 1993-03-24
ES2082151T3 (en) 1996-03-16
DE69115274T2 (en) 1996-05-30
EP0532806B1 (en) 1995-12-06
DK0532806T3 (en) 1996-03-04
DE69115274D1 (en) 1996-01-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee