JPS5779168A - Heat treatment of low carbon steel - Google Patents

Heat treatment of low carbon steel

Info

Publication number
JPS5779168A
JPS5779168A JP15492880A JP15492880A JPS5779168A JP S5779168 A JPS5779168 A JP S5779168A JP 15492880 A JP15492880 A JP 15492880A JP 15492880 A JP15492880 A JP 15492880A JP S5779168 A JPS5779168 A JP S5779168A
Authority
JP
Japan
Prior art keywords
gaseous
carbon steel
low carbon
furnace
low
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
JP15492880A
Other languages
Japanese (ja)
Inventor
Ryuichi Uchino
Akito Isomura
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP15492880A priority Critical patent/JPS5779168A/en
Publication of JPS5779168A publication Critical patent/JPS5779168A/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
    • C23C8/80—After-treatment
    • 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
    • C23C8/28—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 one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

Abstract

PURPOSE:To manufacture a low carbon steel contg. a low hardening strain while saving heat by adding gaseous NX (>=99% N2) to a furnace heated to a prescribed temp., further adding gaseous CH such as butane, gaseous NH3 and a little air to the furnace, and carrying out carbonitriding and quench hardening. CONSTITUTION:Gaseous NX is added to a furnace heated to 650-750 deg.C by about 10 times as much as the volume of the furnace per hour, and 0.5-1.2% gaseous CH to the total amount of the gaseous NX, 0.5-5% gaseous NH3 and 0.3-1.0% air as an accelerator are further added. In this gaseous atmosphere a low carbon steel is carbonitrided and subjected to quench hardening as it is. Thus, an Fe-N- C martensite structure contg. a low hardening strain is formed on the surface of the low carbon steel.
JP15492880A 1980-11-04 1980-11-04 Heat treatment of low carbon steel Pending JPS5779168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15492880A JPS5779168A (en) 1980-11-04 1980-11-04 Heat treatment of low carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15492880A JPS5779168A (en) 1980-11-04 1980-11-04 Heat treatment of low carbon steel

Publications (1)

Publication Number Publication Date
JPS5779168A true JPS5779168A (en) 1982-05-18

Family

ID=15595004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15492880A Pending JPS5779168A (en) 1980-11-04 1980-11-04 Heat treatment of low carbon steel

Country Status (1)

Country Link
JP (1) JPS5779168A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403564A1 (en) * 1988-03-01 1990-12-27 General Dynamics Land Systems, Inc. Method of producing case-hardened plate armor
US8075420B2 (en) * 2009-06-24 2011-12-13 Acushnet Company Hardened golf club head
CN107447186A (en) * 2017-07-31 2017-12-08 安徽沃德气门制造有限公司 A kind of valve surfaces processing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403564A1 (en) * 1988-03-01 1990-12-27 General Dynamics Land Systems, Inc. Method of producing case-hardened plate armor
US8075420B2 (en) * 2009-06-24 2011-12-13 Acushnet Company Hardened golf club head
US20120088600A1 (en) * 2009-06-24 2012-04-12 Helene Rick Hardened golf club head
US8500573B2 (en) * 2009-06-24 2013-08-06 Acushnet Company Hardened golf club head
CN107447186A (en) * 2017-07-31 2017-12-08 安徽沃德气门制造有限公司 A kind of valve surfaces processing method

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