KR940014838A - Manufacturing method of cold rolled steel sheet for stone plate - Google Patents

Manufacturing method of cold rolled steel sheet for stone plate Download PDF

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Publication number
KR940014838A
KR940014838A KR1019920026503A KR920026503A KR940014838A KR 940014838 A KR940014838 A KR 940014838A KR 1019920026503 A KR1019920026503 A KR 1019920026503A KR 920026503 A KR920026503 A KR 920026503A KR 940014838 A KR940014838 A KR 940014838A
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KR
South Korea
Prior art keywords
steel sheet
rolled steel
annealing
cold rolled
ratio
Prior art date
Application number
KR1019920026503A
Other languages
Korean (ko)
Other versions
KR950006691B1 (en
Inventor
정기조
김재익
Original Assignee
박득표
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Application filed by 박득표, 포항종합제철 주식회사, 백덕현, 재단법인 산업과학기술연구소 filed Critical 박득표
Priority to KR1019920026503A priority Critical patent/KR950006691B1/en
Publication of KR940014838A publication Critical patent/KR940014838A/en
Application granted granted Critical
Publication of KR950006691B1 publication Critical patent/KR950006691B1/en

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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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation

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

Abstract

본 발명은 귀발생이 적은 석도간판용 냉연간판 제조방법에 관한 것이다.The present invention relates to a method for producing a cold rolled steel sheet for stone ear plates with little earing.

본 발명에 의하면 석도강판용 냉연강판 제조시 냉간 압연율을 변화시켜 집합조직의 비를 변환시켜 드로우잉 공정에서의 귀발생을 최소화한다.According to the present invention by changing the cold rolling rate during the production of cold rolled steel sheet for masonry steel sheet to convert the ratio of the texture to minimize the occurrence of ear in the draw process.

본 발명의 방법에서 압연율 86~88% 범위에서 1차 냉간 압연후 상소둔 또는 연속 소둔하거나, 소둔후 압연율 40% 이하로 2차 냉간압연하여, 집합조직의 비가 0.10~0.15범위로 변화시킨다.In the method of the present invention, after primary cold rolling in the range of 86 to 88% of the rolling rate, the annealing or continuous annealing is performed, or after the annealing and the second cold rolling to the rolling rate of 40% or less, the ratio of the texture is changed to the range of 0.10 to 0.15. .

Description

귀발생이 적은 석도 강판용 냉연강판의 제조방법Manufacturing method of cold rolled steel sheet for stone plate

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

제1도는 드로우잉 가공에 의한 형성된 귀의 모양을 나타내는 개략도,1 is a schematic view showing the shape of the ear formed by the drawing process,

제2도는 집합조직 변화와 귀발생율과의 상관성을 나타낸 그래프이다.FIG. 2 is a graph showing the correlation between the change of the aggregate and the incidence rate.

Claims (2)

탄소 함량이 중량비로 0.03~0.06%인 Al-킬드강을 통상의 조건으로 열간 압연후, 압하율 86-88%로 1차 냉간압연하고 소둔후 집합 조직의 비가 0.10~0.15되게 함을 특징으로 하는 석도 강판용 냉연강판 제조방법.After hot rolling an Al-kilted steel having a carbon content of 0.03% to 0.06% by weight under ordinary conditions, the first cold rolling is performed at a reduction ratio of 86-88%, and after annealing, the ratio of the texture is 0.10 to 0.15. Method for manufacturing cold rolled steel sheet for stone plate. 탄소 함량이 중량비를 0.03~0.06%인 Al-킬드강을 통상의 조건으로 열간 압연후, 압하율 86~88%로 1차 냉간 압연후 소둔하고, 그후 압하율 10~40%로 2차 냉간 압연후 소둔하여 집합조직의 비가 0.10~0.15되게 함을 특징으로 하는 석도 강판용 냉연강판제조방법.After hot-rolling Al-kilted steel having a carbon content of 0.03 to 0.06% by weight, under normal conditions, after primary cold rolling at a reduction ratio of 86 to 88%, annealing and then cold rolling at a reduction ratio of 10 to 40% After annealing, the ratio of the aggregate structure is 0.10 to 0.15. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019920026503A 1992-12-30 1992-12-30 Making method of cold rolling steel plate with in plating KR950006691B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920026503A KR950006691B1 (en) 1992-12-30 1992-12-30 Making method of cold rolling steel plate with in plating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920026503A KR950006691B1 (en) 1992-12-30 1992-12-30 Making method of cold rolling steel plate with in plating

Publications (2)

Publication Number Publication Date
KR940014838A true KR940014838A (en) 1994-07-19
KR950006691B1 KR950006691B1 (en) 1995-06-21

Family

ID=19347636

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920026503A KR950006691B1 (en) 1992-12-30 1992-12-30 Making method of cold rolling steel plate with in plating

Country Status (1)

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KR (1) KR950006691B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334580B1 (en) * 1997-06-23 2002-11-22 주식회사 포스코 A method of manufacturing high strength black plate having uniform hardeness and no earing
KR100457237B1 (en) * 2000-12-27 2004-11-16 주식회사 포스코 Manufacturing method of drawable high temper grade blackplate for minimum earing ratio

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334580B1 (en) * 1997-06-23 2002-11-22 주식회사 포스코 A method of manufacturing high strength black plate having uniform hardeness and no earing
KR100457237B1 (en) * 2000-12-27 2004-11-16 주식회사 포스코 Manufacturing method of drawable high temper grade blackplate for minimum earing ratio

Also Published As

Publication number Publication date
KR950006691B1 (en) 1995-06-21

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