KR840004457A - 강(鋼)부품의 표면경화 방법 - Google Patents

강(鋼)부품의 표면경화 방법 Download PDF

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Publication number
KR840004457A
KR840004457A KR1019830001681A KR830001681A KR840004457A KR 840004457 A KR840004457 A KR 840004457A KR 1019830001681 A KR1019830001681 A KR 1019830001681A KR 830001681 A KR830001681 A KR 830001681A KR 840004457 A KR840004457 A KR 840004457A
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South Korea
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temperature
hardening
steel
carbon concentration
untempered
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KR1019830001681A
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English (en)
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KR910003515B1 (ko
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아아르 맥키니 죠우 (외 1)
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슈우 에이 그리핀
데이나 코오포레이션
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Publication of KR910003515B1 publication Critical patent/KR910003515B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

내용 없음

Description

강(鋼)부품의 표면경화 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도면은 본 발명의 바람직한 실시에서 이용되는 표면 경화된 조인트 크로스 부재를 나타내는 도면이다.

Claims (14)

  1. 침탄 등급의 강으로 만들어진 강부품상의 10-30% 오스테나 이트를 포함하는 표면 경화 표면을 형성하는 방법으로서, 상기 오스테나이트를 적어도 5-20%의 템퍼되지 않은 마르텐 사이트로 변환시키기 위해 상기 표면을 가공경화하는 단계를 포함하는 것을 특징으로 하는 강부품의 표면 경화 방법.
  2. 제1항에 있어서, 기계가공 작업들을 포함하는 상기 표면에 대한 모든 금속제거 작업들이 상기 침탄단계전에 완료되는 상기 방법.
  3. 제2항에 있어서, 상기 침단 단계가 1550-1740˚F의 온도에서 수행되는 상기 방법.
  4. 제3항에 있어서, 상기 침단 단계가 3-6시간동안 수행되고, 그리하여 상기 탄소농도가 적어도 만분의일인치의 표면 깊이에 도달하는 상기 방법.
  5. 제4항에 있어서, 상기 급냉단계가, 상기부품이 적어도 1500˚F의 온도에 있을 때 수행되고, 상기 부품이 5분간, 80-130˚F온도를 갖는 오일내에 유지되는 상기 방법.
  6. 제5항에 있어서, 상기 템퍼링 단계가 1-1½시간동안 300-400˚F의 온도에서 수행되는 상기 방법.
  7. 제6항에 있어서, 상기 가공 경화 단계가 쇼우트 피닝에 의해 달성되는 상기 방법.
  8. 제7항에 있어서, 상기 쇼우트 피닝 단계가 칠드 강 쇼우트로 수행되는 상기 방법.
  9. 제8항에 있어서, 상기 급냉 단계가 템퍼되지 않은 마르텐사이트 70-90%와 보유 오스테나이트 10-30%의 표면 경화된 표면의 조성을 형성하는 상기 방법.
  10. 제9항에 있어서, 상기 가공 경화 단계 후, 상기 표면 경화된 표면이 만분의일인치까지의 깊이에 70-90의 템퍼된 마르텐사이트 조성 및 5-2%의 템퍼되지 않은 마프텐 사이트 조성을 포함하는 상기 방법.
  11. 제10항에 있어서, 상기 표면 탄소 농도가 침탄 가스로에 의해 달성되고, 그로에서 흡열 캐리어 가스가 하이드로 카본 가스로 강화되어 상기 탄소 농도가 달성되는 상기 방법.
  12. 제11항에 있어서, 상기 기계가공작업이 거친 회전단계와 최종 기계가공 단계를 포함하는 상기 방법.
  13. 제12항에 있어서, 상기 표면 경화 표면이 16000-26000분의 1인체의 알멘 테스트 스트립 "A"아아크 놀이로 표시되는 크기의 경도를 가지는 상기 방법.
  14. 침탄 등급의 강으로 만들어진 강부품상에 표면 경화된 표면을 형성하는 방법에 있어서,(a) 상기 표면을 0.9-1.3범위의 표면 탄소 농도를 침탄하고, (b) 상기 표면 10-30%의 오스테나니트를 보유시키는 수단에 의해 오일내에서 상기 표면을 직접 급냉시키고, (c) 조절된 온도의 조절된 로 분위기내에서 상기 표면을 시간 템퍼링하고, (d) 상기 보유된 오스테나이트를 적어도 5-20%의 템퍼되지 않은 마프텐사이트로 변환시키고 표면 경화 표면내에 압축 응력을 발생시키기 위해 상기 표면을 가공 경화하는 단계들로 이루어진 것을 특징으로 하는 강부분의 표면 경화 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019830001681A 1982-04-22 1983-04-21 강부품의표면경화방법 KR910003515B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US370719 1982-04-22
US06/370,719 US4415378A (en) 1982-04-22 1982-04-22 Case hardening method for steel parts
US370,719 1982-04-22

Publications (2)

Publication Number Publication Date
KR840004457A true KR840004457A (ko) 1984-10-15
KR910003515B1 KR910003515B1 (ko) 1991-06-03

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Application Number Title Priority Date Filing Date
KR1019830001681A KR910003515B1 (ko) 1982-04-22 1983-04-21 강부품의표면경화방법

Country Status (17)

Country Link
US (1) US4415378A (ko)
JP (1) JPS58189323A (ko)
KR (1) KR910003515B1 (ko)
AR (1) AR231309A1 (ko)
AU (1) AU554717B2 (ko)
BE (1) BE896526A (ko)
BR (1) BR8301726A (ko)
CA (1) CA1193948A (ko)
DE (1) DE3311696A1 (ko)
ES (1) ES8406562A1 (ko)
FR (1) FR2525638B1 (ko)
GB (1) GB2119408B (ko)
IN (1) IN158699B (ko)
IT (1) IT1164893B (ko)
MX (1) MX159678A (ko)
SE (1) SE458123B (ko)
ZA (1) ZA832192B (ko)

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JPS6233754A (ja) * 1985-08-05 1987-02-13 Tokyo Netsushiyori Kogyo Kk ガス浸炭熱処理方法
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JPH0756043B2 (ja) * 1988-09-27 1995-06-14 マツダ株式会社 鋼部材の製造方法
US4874437A (en) * 1989-02-08 1989-10-17 Kioritz Corporation Method of adjusting hardness of metallic material
DE4227447C2 (de) * 1991-08-21 2003-08-21 Dana Corp Zahnräder für Fahrzeugachsen
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JP3448789B2 (ja) * 1995-01-20 2003-09-22 同和鉱業株式会社 ガス浸炭方法
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Also Published As

Publication number Publication date
GB8310549D0 (en) 1983-05-25
KR910003515B1 (ko) 1991-06-03
SE458123B (sv) 1989-02-27
FR2525638B1 (fr) 1987-02-27
IT8348143A0 (it) 1983-04-21
SE8302239D0 (sv) 1983-04-21
DE3311696A1 (de) 1983-10-27
FR2525638A1 (fr) 1983-10-28
BR8301726A (pt) 1983-12-13
CA1193948A (en) 1985-09-24
ES521691A0 (es) 1984-07-16
AR231309A1 (es) 1984-10-31
US4415378A (en) 1983-11-15
AU1361283A (en) 1983-10-27
IT1164893B (it) 1987-04-15
ES8406562A1 (es) 1984-07-16
JPS58189323A (ja) 1983-11-05
ZA832192B (en) 1983-12-28
AU554717B2 (en) 1986-08-28
GB2119408B (en) 1985-12-18
MX159678A (es) 1989-08-02
IN158699B (ko) 1987-01-10
SE8302239L (sv) 1983-10-23
GB2119408A (en) 1983-11-16
BE896526A (fr) 1983-08-16

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