KR960021198A - 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법 - Google Patents

우수한 성형성과 소부경화성을 가진 냉연강판 제조방법 Download PDF

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KR960021198A
KR960021198A KR1019940035833A KR19940035833A KR960021198A KR 960021198 A KR960021198 A KR 960021198A KR 1019940035833 A KR1019940035833 A KR 1019940035833A KR 19940035833 A KR19940035833 A KR 19940035833A KR 960021198 A KR960021198 A KR 960021198A
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South Korea
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hardening
temperature range
steel sheet
present
ultra
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KR1019940035833A
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English (en)
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KR0136192B1 (ko
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한성호
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김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Priority to KR1019940035833A priority Critical patent/KR0136192B1/ko
Publication of KR960021198A publication Critical patent/KR960021198A/ko
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

본 발명은 Ti 및 Nb와 같은 강력한 탄질화물 형성원소인 Zr을 미량 첨가한 극저탄소 알루미늄킬드강에 Mn을 고용강화원소로 첨가하여 연속소둔함으로써, 성형성이 우수하며, 4.0kgf/㎟이상의 소부경화량을 가진 인장강도 30~35kfg/㎟의 내연강판을 제조하는 방법을 제공하고자 하는데 그 목적이 있다.
상기 목적을 달성하기 위한 본 발명은 중량%로 C:0.0025~0.0035%, Mn: 0.8~1.2%, P:0.01~0.05%, S:0.008~0.013%, 가용성 Al:0.02~0.08%, N:0.0025이하, Zr:0.005~0.016%로 조성되고, (91/14)N≥Zr의 의 조건을 만족하는 Zr첨가 극저질소 극저탄소 알루미늄킬드강을 1200℃ 이상의 온도범위에서 균질화 열처리후, 900~950℃의 온도범위에서 마무리 열간압연을 행하고, 700~750℃의 온도범위에서 권취한 다음, 통상의 방법으로 냉간압연을 하고, 이후 800~860℃의 온도범위에서 연속소둔 및 0.5~1.5%의 조질압연을 실시함을 포함하여 구성되는 것을 특징으로 하는 우수한 성형성과 소부경화성을 가진 냉연강판의 제조방법에 관한 것을 그 요지로 한다.

Description

우수한 성형성과 소부경화성을 가진 냉연강판 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (1)

  1. 중량%로 C:0.0025~0.0035%, Mn: 0.8~1.2%, P:0.01~0.05%, S:0.008~0.013%, 가용성 Al:0.02~0.08%, N:0.0025이하, Zr:0.005~0.016%로 조성되고, (91/14)N≥Zr의 의 조건을 만족하는 Zr첨가 극저질소 극저탄소 알루미늄킬드강을 1200℃ 이상의 온도범위에서 균질화 열처리후, 900~950℃의 온도범위에서 마무리 열간압연을 행하고, 700~750℃의 온도범위에서 권취한 다음, 통상의 방법으로 냉간압연을 하고, 이후 800~860℃의 온도범위에서 연속소둔 및 0.5~1.5%의 조질압연을 실시함을 포함하여 구성되는 것을 특징으로 하는 우수한 성형성과 소부경화성을 가진 냉연강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940035833A 1994-12-22 1994-12-22 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법 KR0136192B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940035833A KR0136192B1 (ko) 1994-12-22 1994-12-22 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법

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KR1019940035833A KR0136192B1 (ko) 1994-12-22 1994-12-22 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법

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KR0136192B1 KR0136192B1 (ko) 1998-07-01

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046663A (ko) * 2000-12-15 2002-06-21 이구택 가공성이 우수한 관용강판의 제조방법
KR100407476B1 (ko) * 1998-12-29 2004-03-31 주식회사 포스코 드로잉성및2차가공취성에대한내성이우수한고강도냉연강판및그제조방법
KR100415661B1 (ko) * 1998-12-24 2004-06-04 주식회사 포스코 성형성이우수한연질유기피복용냉연강판의제조방법
KR100496532B1 (ko) * 2000-12-07 2005-06-22 주식회사 포스코 성형성이 우수한 소부경화형 냉연강판 및 그 제조방법
KR100900649B1 (ko) * 2002-05-21 2009-06-02 주식회사 포스코 더미용 냉연강판의 제조방법

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359241B1 (ko) * 1998-12-09 2002-12-18 주식회사 포스코 초고가공용 고강도 합금화 용융아연도금강판의 제조방법
KR100403962B1 (ko) * 1998-12-29 2004-06-04 주식회사 포스코 초고성형,고강도소부경화형냉연강판및그제조방법
KR20010054260A (ko) * 1999-12-04 2001-07-02 이계안 소부경화가 가능한 강관 재료

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100415661B1 (ko) * 1998-12-24 2004-06-04 주식회사 포스코 성형성이우수한연질유기피복용냉연강판의제조방법
KR100407476B1 (ko) * 1998-12-29 2004-03-31 주식회사 포스코 드로잉성및2차가공취성에대한내성이우수한고강도냉연강판및그제조방법
KR100496532B1 (ko) * 2000-12-07 2005-06-22 주식회사 포스코 성형성이 우수한 소부경화형 냉연강판 및 그 제조방법
KR20020046663A (ko) * 2000-12-15 2002-06-21 이구택 가공성이 우수한 관용강판의 제조방법
KR100900649B1 (ko) * 2002-05-21 2009-06-02 주식회사 포스코 더미용 냉연강판의 제조방법

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