KR870006213A - Manufacturing method of batch annealing type cold rolled high tensile strength steel with excellent formability and thermosetting - Google Patents

Manufacturing method of batch annealing type cold rolled high tensile strength steel with excellent formability and thermosetting Download PDF

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Publication number
KR870006213A
KR870006213A KR1019850009550A KR850009550A KR870006213A KR 870006213 A KR870006213 A KR 870006213A KR 1019850009550 A KR1019850009550 A KR 1019850009550A KR 850009550 A KR850009550 A KR 850009550A KR 870006213 A KR870006213 A KR 870006213A
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KR
South Korea
Prior art keywords
thermosetting
manufacturing
high tensile
cold rolled
tensile strength
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KR1019850009550A
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Korean (ko)
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KR890002618B1 (en
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박재성
이준정
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안병화
포항종합제철 주식회사
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Priority to KR1019850009550A priority Critical patent/KR890002618B1/en
Publication of KR870006213A publication Critical patent/KR870006213A/en
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Publication of KR890002618B1 publication Critical patent/KR890002618B1/en

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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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

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

Abstract

내용 없음No content

Description

성형성 및 열경화성이 우수한 상자소둔(batch annealing)형 냉연 고장력강의 제조방법Manufacturing method of batch annealing type cold rolled high tensile strength steel with excellent formability and thermosetting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 소둔후 냉각속도를 조성비에 따라 조정한 경우에 있어서 열경화능을 탄소농도에 따라 나타낸 그래프.1 is a graph showing thermosetting capacity according to carbon concentration when the cooling rate after annealing is adjusted according to the composition ratio.

제 2 도는 소둔후 냉각속도를 40℃/HR로 고정했을 경우에 있어서 열경화능을 탄소농도에 따라 나타낸 그래프.2 is a graph showing the thermosetting capacity according to the carbon concentration when the cooling rate is fixed at 40 ° C./HR after annealing.

Claims (1)

C : 0.01∼0.02%, Mn : 0.2∼0.5%, P : 0.05∼0.1%, Sol.Al : 0.04∼0.2% 기타 소량의 불순물을 포함하는 강을 통상의 방법에 의해 880℃ 이상에서 열간 마무리 압연을 하고 550∼600℃에서 권취하여 75%이상 냉간압연을 한다음 종래의 밀착코일을 사용하는 상자 소둔방식에 의해 650∼700℃에서 열처리하여 소둔온도 -400℃ 범위에서 In[R(℃/hr)]=-18.708C(%)-0.87Mn(%)+2.4P(%)-6,977 Sol,Al(%)+5.36의 속도로 냉각함으로써 성형성 및 열경화성이 우수한 가공용 냉연 고장력 강판을 제조하는 방법.C: 0.01 to 0.02%, Mn: 0.2 to 0.5%, P: 0.05 to 0.1%, Sol.Al: 0.04 to 0.2% Hot finish rolling at 880 ° C. or higher by a common method After winding at 550 ~ 600 ℃ and cold rolling at over 75%, heat treatment at 650 ~ 700 ℃ by the box annealing method using conventional close coil and In [R (℃ / hr) )] =-18.708C (%)-0.87Mn (%) + 2.4P (%)-6,977 Sol, Al (%) + 5.36 A method of manufacturing cold rolled high tensile steel sheet for processing having excellent moldability and thermosetting by cooling at a speed of . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850009550A 1985-12-18 1985-12-18 Process for manufacturing of high tension steel KR890002618B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850009550A KR890002618B1 (en) 1985-12-18 1985-12-18 Process for manufacturing of high tension steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019850009550A KR890002618B1 (en) 1985-12-18 1985-12-18 Process for manufacturing of high tension steel

Publications (2)

Publication Number Publication Date
KR870006213A true KR870006213A (en) 1987-07-10
KR890002618B1 KR890002618B1 (en) 1989-07-20

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Application Number Title Priority Date Filing Date
KR1019850009550A KR890002618B1 (en) 1985-12-18 1985-12-18 Process for manufacturing of high tension steel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100727736B1 (en) * 2005-12-22 2007-06-13 현대하이스코 주식회사 Simulator for batch annealing furnace and method of experiment thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100727736B1 (en) * 2005-12-22 2007-06-13 현대하이스코 주식회사 Simulator for batch annealing furnace and method of experiment thereof

Also Published As

Publication number Publication date
KR890002618B1 (en) 1989-07-20

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