DK157691C - PROCEDURE FOR IONIC NITRIDATION OF A STEEL SUBSTANCE THAT BEFORE DEFORMED PLASTIC - Google Patents

PROCEDURE FOR IONIC NITRIDATION OF A STEEL SUBSTANCE THAT BEFORE DEFORMED PLASTIC

Info

Publication number
DK157691C
DK157691C DK228982A DK228982A DK157691C DK 157691 C DK157691 C DK 157691C DK 228982 A DK228982 A DK 228982A DK 228982 A DK228982 A DK 228982A DK 157691 C DK157691 C DK 157691C
Authority
DK
Denmark
Prior art keywords
degrees
pascal
procedure
nitrogen
ionic
Prior art date
Application number
DK228982A
Other languages
Danish (da)
Other versions
DK228982A (en
DK157691B (en
Inventor
Robert Leveque
Original Assignee
Creusot Loire
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 Creusot Loire filed Critical Creusot Loire
Publication of DK228982A publication Critical patent/DK228982A/en
Publication of DK157691B publication Critical patent/DK157691B/en
Application granted granted Critical
Publication of DK157691C publication Critical patent/DK157691C/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
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C23C8/36—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 using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment of ferrous surfaces

Abstract

1. A method for the ionic nitriding of pieces of steel of any type, which comprises the following four stages in succession : a) a prior cold-working operation on the piece, the final degree of cold-working of which is between 10% and 40% ; b) a first ionic nitriding sequence with a duration of between one hour and 10 hours, carried out at a temperature t1 of between 450 degrees and 520 degrees, in a gaseous mixture consisting of nitrogen and hydrogen, which is such that the nitrogen partial pressure p1 is between 10 and 35 Pascal and such that the total gas pressure is between 200 and 650 Pascal ; c) a second ionic nitriding sequence the duration of which is between 40 and 70 hours, carried out at a temperature t2 of between 500 degrees and 580 degrees C and at least 10 degrees C and at most 50 degrees C above t1 in a gaseous mixture consisting of nitrogen and hydrogen, which is such that the nitrogen partial pressure p2 is between 60 and 80 Pascal, and that the total gas pressure remains between 200 and 650 Pascal ; and d) a final cooling in vacuo.
DK228982A 1981-05-21 1982-05-19 PROCEDURE FOR IONIC NITRIDATION OF A STEEL SUBSTANCE THAT BEFORE DEFORMED PLASTIC DK157691C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8110129 1981-05-21
FR8110129A FR2506339A1 (en) 1981-05-21 1981-05-21 METHOD FOR THE ION NITRURATION OF A PLASTICALLY PREFORMED DEFORMED STEEL PART

Publications (3)

Publication Number Publication Date
DK228982A DK228982A (en) 1982-11-22
DK157691B DK157691B (en) 1990-02-05
DK157691C true DK157691C (en) 1990-07-02

Family

ID=9258728

Family Applications (1)

Application Number Title Priority Date Filing Date
DK228982A DK157691C (en) 1981-05-21 1982-05-19 PROCEDURE FOR IONIC NITRIDATION OF A STEEL SUBSTANCE THAT BEFORE DEFORMED PLASTIC

Country Status (9)

Country Link
EP (1) EP0067098B1 (en)
AT (1) ATE16293T1 (en)
DE (1) DE3267120D1 (en)
DK (1) DK157691C (en)
ES (1) ES8304613A1 (en)
FR (1) FR2506339A1 (en)
GR (1) GR75839B (en)
PT (1) PT74775B (en)
ZA (1) ZA823472B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619436D0 (en) * 1986-08-08 1986-09-17 Verdict Ion Technology Ltd Tooling
DE4429943C1 (en) * 1994-08-24 1996-02-22 Dornier Gmbh Lindauer Drop wire surface hardening
DE102006025008B4 (en) * 2006-05-30 2022-09-15 Schaeffler Technologies AG & Co. KG Process for hardening running surfaces of roller bearing components
DE102008060161B4 (en) * 2008-12-02 2012-07-19 Benteler Automobiltechnik Gmbh Method for producing a suspension component with increased fatigue strength and chassis component
LU92514B1 (en) * 2014-08-08 2016-02-09 Plasma Metal S A SURFACE TREATMENT PROCESS OF A STAINLESS STEEL PART
CN105695922A (en) * 2014-11-25 2016-06-22 上海新力动力设备研究所 Surface glow ion nitriding method of 30Cr3SiNiMoVA steel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR86012E (en) * 1963-12-11 1965-11-26 Berliet Automobiles friction elements particularly resistant to abrasion wear
JPS5458636A (en) * 1977-10-20 1979-05-11 Kawasaki Heavy Ind Ltd Ion nitriding method
JPS5458637A (en) * 1977-10-20 1979-05-11 Kawasaki Heavy Ind Ltd Ion nitriding method
JPS5514839A (en) * 1978-07-14 1980-02-01 Kawasaki Heavy Ind Ltd Treating method for ion nitriding
FR2446326A1 (en) * 1979-01-10 1980-08-08 Creusot Loire IMPROVEMENT IN ION NITRURATION OF ELONGATED HOLLOW BODIES, IN STEEL

Also Published As

Publication number Publication date
FR2506339B1 (en) 1983-12-23
GR75839B (en) 1984-08-02
ATE16293T1 (en) 1985-11-15
ZA823472B (en) 1983-03-30
PT74775B (en) 1983-11-08
ES512331A0 (en) 1983-03-01
EP0067098B1 (en) 1985-10-30
DK228982A (en) 1982-11-22
DK157691B (en) 1990-02-05
ES8304613A1 (en) 1983-03-01
PT74775A (en) 1982-05-01
DE3267120D1 (en) 1985-12-05
EP0067098A1 (en) 1982-12-15
FR2506339A1 (en) 1982-11-26

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