KR860009143A - 성형용 고강도 복합조직 냉연강판의 제조방법 - Google Patents

성형용 고강도 복합조직 냉연강판의 제조방법 Download PDF

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Publication number
KR860009143A
KR860009143A KR1019850003533A KR850003533A KR860009143A KR 860009143 A KR860009143 A KR 860009143A KR 1019850003533 A KR1019850003533 A KR 1019850003533A KR 850003533 A KR850003533 A KR 850003533A KR 860009143 A KR860009143 A KR 860009143A
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KR
South Korea
Prior art keywords
steel sheet
cold rolled
rolled steel
high strength
composite structure
Prior art date
Application number
KR1019850003533A
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English (en)
Other versions
KR880001662B1 (ko
Inventor
이준정
Original Assignee
안병화
포항종합제철 주식회사
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 안병화, 포항종합제철 주식회사 filed Critical 안병화
Priority to KR1019850003533A priority Critical patent/KR880001662B1/ko
Publication of KR860009143A publication Critical patent/KR860009143A/ko
Application granted granted Critical
Publication of KR880001662B1 publication Critical patent/KR880001662B1/ko

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Classifications

    • 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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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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

내용 없음

Description

성형용 고강도 복합조직 냉연강판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 열처리 경로를 종래방법과 비교한 그래프.
제2도는 종래의 수냉방법 및 본 발명에 의한 강판 조직내의 마르텐사이트형성과정을 나타낸 모식도.
제3도는 종래의 수냉방법 및 본 발명에 의한 강판 조직내의 마르텐사이트분포 상태를 보여주는 사진(×800).

Claims (2)

  1. 연속소둔에 의해서 성형용 고강도 복합조직 냉연강판을 제조하는데 있어서, 탄소 : 0.04-0.10%, 망간 : 0.5-1.0%, 0.25%이하의 실리콘 및 기타 불가피한 불순물을 포함하는 강판을 800-820℃에서 소둔하고, 680-720℃까지는 5-10℃/초의 냉각속도로서 냉한후 곧바로 수냉하고, 수냉된 강판을 200-250℃로 재가열하여 2-4분간 뜨임처리를 실시하는 것을 특징으로하는 성형용 고강도 복합조직 냉연강판의 제조방법.
  2. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850003533A 1985-05-22 1985-05-22 성형용 고강도 복합조직 냉연강판의 제조방법 KR880001662B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850003533A KR880001662B1 (ko) 1985-05-22 1985-05-22 성형용 고강도 복합조직 냉연강판의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019850003533A KR880001662B1 (ko) 1985-05-22 1985-05-22 성형용 고강도 복합조직 냉연강판의 제조방법

Publications (2)

Publication Number Publication Date
KR860009143A true KR860009143A (ko) 1986-12-20
KR880001662B1 KR880001662B1 (ko) 1988-09-05

Family

ID=19241034

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850003533A KR880001662B1 (ko) 1985-05-22 1985-05-22 성형용 고강도 복합조직 냉연강판의 제조방법

Country Status (1)

Country Link
KR (1) KR880001662B1 (ko)

Also Published As

Publication number Publication date
KR880001662B1 (ko) 1988-09-05

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