KR890004781A - 열간압연 강판 및 그 제조방법 - Google Patents

열간압연 강판 및 그 제조방법 Download PDF

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Publication number
KR890004781A
KR890004781A KR1019880011879A KR880011879A KR890004781A KR 890004781 A KR890004781 A KR 890004781A KR 1019880011879 A KR1019880011879 A KR 1019880011879A KR 880011879 A KR880011879 A KR 880011879A KR 890004781 A KR890004781 A KR 890004781A
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KR
South Korea
Prior art keywords
less
steel sheet
hot rolled
rolled steel
embrittlement
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Application number
KR1019880011879A
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English (en)
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KR910008939B1 (ko
Inventor
아끼오 도사까
게이 사까다
하시구찌고이찌
다데오 히가시노
도시오 이찌다
Original Assignee
야기 야스히로
가와사끼 세이데쯔 가부시끼가이샤
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.)
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Publication date
Priority claimed from JP62228570A external-priority patent/JPH0699779B2/ja
Priority claimed from JP63141846A external-priority patent/JPH01312057A/ja
Application filed by 야기 야스히로, 가와사끼 세이데쯔 가부시끼가이샤 filed Critical 야기 야스히로
Publication of KR890004781A publication Critical patent/KR890004781A/ko
Application granted granted Critical
Publication of KR910008939B1 publication Critical patent/KR910008939B1/ko

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Classifications

    • 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
    • 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
    • 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
    • C21D8/0421—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
    • C21D8/0426—Hot rolling

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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)
  • Heat Treatment Of Steel (AREA)

Abstract

내용 없음

Description

열간압연 강판 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 열간압연 강판에 함유된 B의 함유율이 강판의 취화로 인해 야기되는 파열의 형성온도의 그 상한치에 미치는 영향을 나타내는 그래프이다.
제2도는 열간압연 강판에 존재하는 페라이트 입자크기가 강판의 2차 가공 취화에 대한 내성에 미치는 영향을 나타내는 그래프이다.

Claims (3)

  1. C : 0.0040wt% 이하(이하%로만 나타냄), Mn : 0.020%이하, Ti : [{48/14N(%) +48/32S(%)+0.003}-{3x48/12C(%)+48/14N(%)+48/32S(%)}]%, B : 0.0002-0.0015%, Al : 0.005-0.10%, N : 0.0040%이하, P : 0.015%이하, S : 0.0035%이하이고 나머지는 거의 Fe로 구성되어 있는 것을 특징으로 하는 2차 가공 취화에 대한 내성이 크고 초심인발에 적합한 열간 압연 강판.
  2. C : 0.0040wt% 이하(이하%로만 나타냄), Mn : 0.020%이하, Ti : [{48/14N(%) +48/32S(%)+0.003}-{3x48/12C(%)+48/14N(%)+48/32S(%)}]%, B : 0.0002-0.0020%, Al : 0.005-0.10%, N : 0.0040%이하, P : 0.015%이하, S : 0.0035%이하이고 나머지는 거의 Fe로 구성되어 있고 강판 전역에 걸쳐 입자크기가 35㎛ 이상인 페라이트로 거의 이루어져 있는 것을 특징으로 하는 2차 가공 취하 및 납땜 취화에 대한 내성이 크고 초심인발에 적합한 열간 압연 강판.
  3. C : 0.0040wt% 이하(이하%로만 나타냄), Mn : 0.020%이하, Ti : [{48/14N(%) +48/32S(%)+0.003}-{3x48/12C(%)+48/14N(%)+48/32S(%)}]%, B : 0.0002-0.0020%, Al : 0.005-0.10%, N : 0.0040%이하, P : 0.015%이하, S : 0.0035%이하이고 나머지는 거의 Fe로 구성되어 있는 슬랩을 1000-1280℃로 가열하고, 가열된 슬랩을 880-920℃의 마무리 열간 압연 온도에서 열간 압연하고, 마무리 열간 압연이 종료된지 1초 이내에 마무리 열간 압연 강판을 냉각시키기 시작하고, 10℃/sec 또는 그 이상의 냉각 속도로 연속적으로 냉각하고, 550-480℃범위 내에서 냉각된 강판을 코일링 하는 과정으로 이루어지는 것을 특징으로 하는 2차 가공 취화 및 납땜 취화에 대한 내성이 크고 초심인발에 적합한 열간 압연 강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880011879A 1987-09-14 1988-09-13 열간압연 강판 및 그 제조방법 KR910008939B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP62-228570 1987-09-14
JP62228570A JPH0699779B2 (ja) 1987-09-14 1987-09-14 耐２次加工脆性の良好な超深紋り用熱延鋼板
JP?62-228,570 1987-09-14
JP63-141846 1988-06-10
JP63141846A JPH01312057A (ja) 1988-06-10 1988-06-10 耐２次加工脆性及び耐ろう脆性の良好な超深絞り用熱延鋼板と、その製造法
JP?63-141,846 1988-06-10

Publications (2)

Publication Number Publication Date
KR890004781A true KR890004781A (ko) 1989-05-09
KR910008939B1 KR910008939B1 (ko) 1991-10-26

Family

ID=26474012

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880011879A KR910008939B1 (ko) 1987-09-14 1988-09-13 열간압연 강판 및 그 제조방법

Country Status (6)

Country Link
US (1) US4931106A (ko)
EP (1) EP0308751A1 (ko)
KR (1) KR910008939B1 (ko)
CN (1) CN1018558B (ko)
AU (1) AU593998B2 (ko)
CA (1) CA1308998C (ko)

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US4889566A (en) * 1987-06-18 1989-12-26 Kawasaki Steel Corporation Method for producing cold rolled steel sheets having improved spot weldability
DE59009505D1 (de) * 1989-05-09 1995-09-14 Preussag Stahl Ag Verfahren zur herstellung von coilbreak-freiem warmband und alterungsbeständigem feuerverzinktem kaltband.
AU624992B2 (en) * 1989-09-11 1992-06-25 Kawasaki Steel Corporation Cold-rolled steel sheet for deep drawings and method of producing the same
DE69317079T2 (de) * 1992-07-20 1998-08-13 Koninkl Philips Electronics Nv Verfahren zum Herstellen einer Formplatte und danach hergestellte Formplatten
US5534089A (en) * 1993-12-21 1996-07-09 Kawasaki Steel Corporation Method of manufacturing small planar anisotropic high-strength thin can steel plate
JP3420370B2 (ja) * 1995-03-16 2003-06-23 Ｊｆｅスチール株式会社 プレス成形性に優れた薄鋼板およびその製造方法
WO1997033706A1 (fr) * 1996-03-15 1997-09-18 Kawasaki Steel Corporation Feuille d'acier ultrafine et procede pour la fabriquer
US6488790B1 (en) 2001-01-22 2002-12-03 International Steel Group Inc. Method of making a high-strength low-alloy hot rolled steel
CN104233062B (zh) * 2013-06-06 2017-04-26 上海梅山钢铁股份有限公司 一种短时间退火生产超深冲热镀锌钢板及其生产方法
JP5729523B1 (ja) 2013-06-27 2015-06-03 Ｊｆｅスチール株式会社 高強度熱延鋼板およびその製造方法
CN103710617A (zh) * 2013-12-16 2014-04-09 宝山钢铁股份有限公司 一种340MPa级热镀锌铁合金高强IF钢
CN106002090A (zh) * 2016-06-01 2016-10-12 昆山科森科技股份有限公司 一种片材成型方法
CN106929765A (zh) * 2017-01-24 2017-07-07 唐山钢铁集团有限责任公司 一种280MPa级超深冲用带钢及其生产方法
CN110284067A (zh) * 2019-07-29 2019-09-27 武汉钢铁有限公司 一种免酸洗深冲热轧钢板的制备方法

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Also Published As

Publication number Publication date
US4931106A (en) 1990-06-05
EP0308751A1 (en) 1989-03-29
CA1308998C (en) 1992-10-20
AU2218888A (en) 1989-03-16
AU593998B2 (en) 1990-02-22
KR910008939B1 (ko) 1991-10-26
CN1032556A (zh) 1989-04-26
CN1018558B (zh) 1992-10-07

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Free format text: OPPOSITION NUMBER: 001991000554; OPPOSITION DATE: 19911226