KR920019959A - 상온 비시효 bh형드로잉 가공용 고장력 냉연강판 및 그 제조방법 - Google Patents

상온 비시효 bh형드로잉 가공용 고장력 냉연강판 및 그 제조방법 Download PDF

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KR920019959A
KR920019959A KR1019920007134A KR920007134A KR920019959A KR 920019959 A KR920019959 A KR 920019959A KR 1019920007134 A KR1019920007134 A KR 1019920007134A KR 920007134 A KR920007134 A KR 920007134A KR 920019959 A KR920019959 A KR 920019959A
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temperature
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rolled steel
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스스무 오카다
게이 사카타
스스무 사토
마사히코 모리타
도시유키 가토
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도오사키 시노부
가와사키 세이테츠 가부시키가이샤
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
    • 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
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0436—Cold rolling

Abstract

내용 없음

Description

상온 비시효 BH형드로잉 가공용 고장력 냉연강판 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 어닐링후의 강판의 TS-E1 밸런스에 미치는 Ni, Cu 또는 Mo의 영향을 나타내는 그래프.
제2도는 어닐링후의 강판의 TS-E1 밸런스에 미치는 C의 영향을 나타내는 그래프.
제3도는 어닐링후의 강판의 r값에 미치는 Nb 및 Ti의 영향을 나타내는 그래프.

Claims (10)

  1. C: 0.001wt%이상, 0.025wt%이하, Si: 1.0wt%이상, 2.0wt%이하, Nb: 0.001wt%이상, 0.2wt%이하, B: 0.003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, N: 0.007wt%이하를 포함하고, 또한 Ni: 0.05wt%이상, 3.0wt%이하, Mo: 0.01wt%이상, 2.0wt%이하, Cu: 0.05wt%이상, 5.0wt%이하 중에서 선택한 1종류, 또는 2종류를 함유하고, 잔부는 철 및 불가피한 불순물로 구성되고, 조직이 고온 변태페라이트상 및 전위밀도가 높은 저온 변태페라이트상의 복합조직으로 이루어지는 것을 특징으로 하는 상온비시효형 드로잉가공용 고장력 냉연강판.
  2. 제1항에 있어서, Cr: 0.05wt%이상, 3.0wt%이하, Ti: 0.005wt%이상, 1.0wt %이하 중에서 선택한 1종류, 또는 2종류를 함유하는 것을 특징으로 하는 상온비시효형 드로잉가공용 고장력 냉연강판.
  3. C: 0.001wt%이상, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.01wt%이상, 2.0wt%이하, Nb: 0.001wt%이상, 0.2wt%이하, B: 0.0003wt%이상, 0.01wt% 이하, Al: 0.005wt% 이상, 0.10wt% 이하, P:0.1wt%이하,N:0.007wt%이하를 포함하고, 또한 N: 0.05wt% 이상, 3.0wt%이하, Mo: 0.01wt%이상, 2.0wt%이하, Cu: 0.05wt%이상, 5wt%이하 중에서 선택한 1종류, 또는 2종 이상을 함유하는 열연판을 60%이상의 압하율로 냉연후 γ변태 개시 온도이상, Ac3변태점 미만의 온도범위에서 어닐링에 계속하여, 5℃/초이상, 100℃/초 이하의 속도로 냉각하는 것을 특징으로 하는 상온비시효형 트로잉가공용 고장력 냉연강판의 제조방법.
  4. 제3항에 있어서, Cr: 0.05wt%이상, 3.0wt%이하, Ti: 0.005wt%이상, 1.0wt %이하 중에서 선택한 1종류, 또는 2종류를 함유하는 것을 특징으로 하는 상온비시효형 드로잉가공용 고장력 냉연강판의 제조방법.
  5. C: 0.008wt%초과, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Nb: 0.2wt%이하, 다만 Cwt%의 5배이상, B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, N: 0.007wt%이하를 함유하고, 잔부는 철 및 불가피불순물로 구성되며 조직이 고온 변태페라이트상 및 전위밀도가 높은 저온 변태페라이트상의 복합조직을 갖고 TS가 45Kgf/mm2이상인 것을 특징으로 하는 상온비시효 BH형 드로잉가공용 고장력 냉연강판.
  6. C: 0.008wt%초과, 0.025wt%이하, S: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Ti: 0.005wt%이상인 동시에 하기(1)식을 만족하고,
    Tiwt% ≤ 48/32[Swt%] + 48/14[Nwt%] (1)
    Nb: 0.2wt%이상, 다만 Cwt%의 5배이상, B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, S: 0.050wt%이하, N: 0.007wt%이하를 함유하고, 잔부는 철 및 불가피불순물로 구성되며 조직이 고온 변태레라이트상 및 전위밀도가 높은 저온 변태페라이트상의 복합조직을 갖고 TS가 45Kgf/mm2이상인 것을 특징으로 하는 상온비시효 BH형 드로잉가공용 고장력 냉연강판.
  7. C: 0.008wt%이상, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Ti: 하기(2)식을 만족하는 범위로 함유하고,
    48/12[Cwt%] + 48/32[Swt%] + 48/14[Nwt%] > Tiwt% > 48/32[Swt%] +48/14[Nwt%] (2)
    Nb: 0.2wt%이하, 다만 하기 (3)식에서 계산되는 C*wt%의 5배이상,
    C*wt%=[Cwt%] + 12/32[Swt%] + 12/14[Nwt%] - 12/48[Tiwt% (3)
    B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, S: 0.050wt%이하, N: 0.007wt%이하를 함유하고, 잔부는 철 및 불가피불순물로 구성되며 조직이 고온 변태폐라이트상 및 전위밀도가 높은 저온 변태페라이트상의 복합조직을 갖고 TS가 45kgf/mm2이상인 것을 특징으로 하는 상온비시효 BH형드로잉가공용 고장력 냉연강판.
  8. C: 0.008wt%초과, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Nb: 0.2wt%이상, 다만 Cwt%의 5배이상, B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, N: 0.007wt%이하를 함유하는 조성이되는 열연판을 60%이상의 압하율로 냉연후 γ변태개시 온도이상, Ac3변태점 미만인 온도범위에서 어닐링 한 후, 5℃/초이상, 100℃/초 이하의 속도로 냉각하는 것을 특징으로 하는 상온비시효 BH형 드로잉가공용 고장력 냉연강판의 제조방법.
  9. C: 0.008wt%초과, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Ti: 0.005wt%이상인 동시에 하기(1)식을 만족하고,
    Tiwt% ≤ 48/32[Swt%] + 48/14[Nwt%] (1)
    Nb: 0.2wt%이상, 다만 Cwt%의 5배이상, B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, S: 0.050wt%이하, N: 0.007wt%이하를 함유하는 조성이되는 열연판을 60%이상의 압하율로 냉연후 γ변태개시 온도이상, Ac3변태점 미만인 온도범위에서 어닐링 한 후, 5℃/초이상, 100℃/초 이하의 속도로 냉각하는 것을 특징으로 하는 상온비시효 BH형 드로잉가공용 고장력 냉연강판의 제조방법.
  10. C: 0.008wt%이상, 0.025wt%이하, Si: 1.0wt%이하, Mn: 0.1wt%이상, 2.0wt%이하, Ti: 하기식(2)을 만족하는 범위로 함유,
    48/12[Cwt%] + 48/32[Swt%] + 48/14[Nwt%] > Tiwt% > 48/32[Swt%] +48/14[Nwt%]
    Nb: 0.2wt%이하, 다만 하기식 (3)에서 계산되는 C*wt%의 5배이상,
    C*wt%=[Cwt%] + 12/32[Swt%] + 12/14[Nwt%] - 12/48[Tiwt% (3)
    B: 0.0003wt%이상, 0.01wt%이하, Al: 0.005wt%이상, 0.10wt%이하, P: 0.1wt%이하, S: 0.050wt%이하, N: 0.007wt%이하를 함유하는 조성이되는 열연판을 60%이상의 압하율로 냉연후γ변태개시 온도이상, Ac3변태점 미만인 온도범위에서 어닐링 한 후, 5℃/초이상, 100℃/초 이하의 속도로 냉각하는 것을 특징으로 하는 상온비시효 BH형 드로잉가공용 고장력 냉연강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920007134A 1991-04-26 1992-04-27 상온 비시효 소성경화성 인발 가공용 고장력 냉연강판 및 그 제조방법 KR950007472B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP91-123134 1991-04-26
JP91-123135 1991-04-26
JP3123135A JP2818319B2 (ja) 1991-04-26 1991-04-26 常温非時効型絞り用高張力冷延鋼板及びその製造方法
JP12313491A JP2823974B2 (ja) 1991-04-26 1991-04-26 常温非時効ｂｈ型絞り用高張力冷延鋼板及びその製造方法

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KR920019959A true KR920019959A (ko) 1992-11-20
KR950007472B1 KR950007472B1 (ko) 1995-07-11

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EP0510718B1 (en) 1999-02-10
DE69228403D1 (de) 1999-03-25
CA2067043A1 (en) 1992-10-27
KR950007472B1 (ko) 1995-07-11
EP0510718A2 (en) 1992-10-28
DE69228403T2 (de) 1999-06-24
US5356494A (en) 1994-10-18
CA2067043C (en) 1998-04-28
EP0510718A3 (en) 1993-09-29

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