JPS5623268A - Soft nitriding method for steel - Google Patents

Soft nitriding method for steel

Info

Publication number
JPS5623268A
JPS5623268A JP9544080A JP9544080A JPS5623268A JP S5623268 A JPS5623268 A JP S5623268A JP 9544080 A JP9544080 A JP 9544080A JP 9544080 A JP9544080 A JP 9544080A JP S5623268 A JPS5623268 A JP S5623268A
Authority
JP
Japan
Prior art keywords
steel
gas
soft nitriding
nitriding treatment
atmosphere
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.)
Pending
Application number
JP9544080A
Other languages
Japanese (ja)
Inventor
Hirokuni Inuzuka
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.)
Chuo Hatsujo KK
Chuo Spring Co Ltd
Original Assignee
Chuo Hatsujo KK
Chuo Spring 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 Chuo Hatsujo KK, Chuo Spring Co Ltd filed Critical Chuo Hatsujo KK
Priority to JP9544080A priority Critical patent/JPS5623268A/en
Publication of JPS5623268A publication Critical patent/JPS5623268A/en
Pending 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
    • C23C8/02—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
    • C23C8/08—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

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)

Abstract

PURPOSE:To make the soft nitriding treatment possible at a lower temperature and in a shorter time than the usual method, by treating the steel in the atmosphere contg. a fixed volume of wet HCl gas in NH3 gas and promoting the formation of nitrogen compound. CONSTITUTION:Steel is treated in the atmosphere contg. 5ppm-5vol% wet hydrogen chloride gas in ammonia gas. The decomposition of ammonia gas is remarkably promoted by adding wet hydrogen chloride gas and nitriding concentration in said atmosphere is increased and then, soft nitriding treatment is made easy by advantageous treating conditions i.e. lower temperature and shorter time. The surface of the steel to be treated is more hardened, and the fatigue resistance and abrasion resistance are remakably improved by performing preliminarily the soft nitriding treatment of this invention after giving the residual stress on the surfade layer of the steel by the mechanical means, for example, shot peening etc.
JP9544080A 1980-07-12 1980-07-12 Soft nitriding method for steel Pending JPS5623268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9544080A JPS5623268A (en) 1980-07-12 1980-07-12 Soft nitriding method for steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9544080A JPS5623268A (en) 1980-07-12 1980-07-12 Soft nitriding method for steel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP54052761 Division

Publications (1)

Publication Number Publication Date
JPS5623268A true JPS5623268A (en) 1981-03-05

Family

ID=14137752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9544080A Pending JPS5623268A (en) 1980-07-12 1980-07-12 Soft nitriding method for steel

Country Status (1)

Country Link
JP (1) JPS5623268A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63161420A (en) * 1986-12-24 1988-07-05 Taiyo Kogyo:Kk Manufacture of guide pole used in zoom mechanism and guide pole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789930A (en) * 1954-10-11 1957-04-23 William F Engelhard Method of nitriding ferrous alloys
JPS5120304A (en) * 1974-08-09 1976-02-18 Mitsui Toatsu Chemicals KIDOKISO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789930A (en) * 1954-10-11 1957-04-23 William F Engelhard Method of nitriding ferrous alloys
JPS5120304A (en) * 1974-08-09 1976-02-18 Mitsui Toatsu Chemicals KIDOKISO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63161420A (en) * 1986-12-24 1988-07-05 Taiyo Kogyo:Kk Manufacture of guide pole used in zoom mechanism and guide pole

Similar Documents

Publication Publication Date Title
MXPA02007348A (en) Modified low temperature case hardening processes.
DE3373197D1 (en) Method of surface-hardening metallic parts
US4519853B1 (en)
JPS5623268A (en) Soft nitriding method for steel
JPS5541908A (en) Surface hardening method of steel
DE69902169D1 (en) METHOD FOR LOW PRESSURE NITROCARBURING METAL WORKPIECES
DE68914624D1 (en) Process and plant for heat treatments such as case hardening, carbonitriding or heating before hardening metallic materials.
ATE187504T1 (en) METHOD FOR TREATING PARTS
EP0248431A2 (en) Method of producing outer coating layers on heat and corrosion resistant austenitic steels
RU2052536C1 (en) Method for thermochemical treatment of steel products
JP2998168B2 (en) High temperature nitrocarburizing furnace and nitrocarburizing method
DE3170794D1 (en) Method for the surface improvement of machine parts and cutting tools of ferrous alloys
Kozlov et al. Research and Development and Introduction of the Carbonitriding Processes for Steel Components in Controlled Atmospheres
Gutierrez-Miravete et al. A Study of the Selective Carburization Process
Guechichi et al. Predicting Residual Stresses due to Shot Peening
JPS6393821A (en) Improvement of fatigue strength of soft-nitrided product
ATE188513T1 (en) METHOD FOR NITRIDING AND/OR NITROCARBURIZING METAL WORKPIECES
JPS5779168A (en) Heat treatment of low carbon steel
JPS5690972A (en) Production of high strength steel
JPS5735679A (en) Method for nitriding using gaseous ammonia
JPS5747868A (en) Heat treatment of steel
JPS57184672A (en) Diamond dresser
CN85103910A (en) The no cyanogen heat-treating methods of hand saw blade
Brautigam Resist Wear Successfully by Nitriding in Ammonia Gas Current
JPS5940224B2 (en) Surface hardening method for steel products