KR920011595A - Manufacturing method of cold rolled steel with excellent workability - Google Patents

Manufacturing method of cold rolled steel with excellent workability Download PDF

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Publication number
KR920011595A
KR920011595A KR1019900022656A KR900022656A KR920011595A KR 920011595 A KR920011595 A KR 920011595A KR 1019900022656 A KR1019900022656 A KR 1019900022656A KR 900022656 A KR900022656 A KR 900022656A KR 920011595 A KR920011595 A KR 920011595A
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KR
South Korea
Prior art keywords
less
cold rolled
rolling
manufacturing
excellent workability
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KR1019900022656A
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Korean (ko)
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KR930002431B1 (en
Inventor
김교성
권오준
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Priority to KR1019900022656A priority Critical patent/KR930002431B1/en
Publication of KR920011595A publication Critical patent/KR920011595A/en
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Publication of KR930002431B1 publication Critical patent/KR930002431B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

내용 없음No content

Description

가공성이 우수한 냉연강재의 제조방법Manufacturing method of cold rolled steel with excellent workability

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

제1도는 표1의 각 시편별 열연미세조직사진, 제2도는 열연코일에서 재결정이 일어나는 열간압연 마무리 온도 및 권취온도범위를 나타내는 그래프, 제3도는 표2의 각시편별 열연 미세조직사진.1 is a graph showing the hot rolled microstructure of each specimen of Table 1, FIG. 2 is a graph showing the hot rolling finish temperature and winding temperature range in which recrystallization occurs in the hot rolled coil, and FIG. 3 is a graph of hot rolled microstructure of each specimen of Table 2.

Claims (1)

중량비로 탄소 0.01%이하, Mn 1.5%이하, Si 1.5%이하, AI 0.1%, S0.015%이하, N 0.015%이하이고 Ti함량이 유효 Ti(Ti-1.53-3.4N)와 탄소함량과의 비가 원자비로 2.5이상되게 포함하는 소재를 , 권취온도 650℃-700℃인 범위에서, 열간압연 마무리온도를 700℃-(권취온도 +100)℃로 제어하면서 910℃이하에서의 압하량을 진변형율로 2.2이상 가하여 연속식 열간압연에 의해 디프드로잉용 냉연제품의 소재인 열연코일을 열간 마무리 압연한 후 별도의 재결정 열처리없이 통상의 방법으로, 냉연, 소둔열처리를 행함을 특징으로하는 가공성이 우수한 냉연강재의 제조방법.Less than 0.01% of carbon, less than 1.5% of Mn, less than 1.5% of Si, less than 0.1% of AI, less than S0.015% of N, less than 0.015% of N, and the Ti content between the effective Ti (Ti-1.53-3.4N) and carbon content In the range of coiling temperature of 650 ℃ -700 ℃, the hot rolling finishing temperature is controlled to 700 ℃-(winding temperature +100) ℃, and the rolling reduction is lowered below 910 ℃. Excellent workability, characterized in that the cold rolling and annealing heat treatment is performed in a conventional manner without additional recrystallization heat treatment after hot finish rolling hot rolled coil, which is a material of deep drawing cold rolled product by continuous hot rolling at a strain rate of 2.2 or more. Method of manufacturing cold rolled steel. ※참고사항：최초출원 내용에 의하여 공개되는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019900022656A 1990-12-31 1990-12-31 Method for manufacturing an excellent working cold rolled steel materials KR930002431B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022656A KR930002431B1 (en) 1990-12-31 1990-12-31 Method for manufacturing an excellent working cold rolled steel materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022656A KR930002431B1 (en) 1990-12-31 1990-12-31 Method for manufacturing an excellent working cold rolled steel materials

Publications (2)

Publication Number Publication Date
KR920011595A true KR920011595A (en) 1992-07-24
KR930002431B1 KR930002431B1 (en) 1993-03-30

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Application Number Title Priority Date Filing Date
KR1019900022656A KR930002431B1 (en) 1990-12-31 1990-12-31 Method for manufacturing an excellent working cold rolled steel materials

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Publication number Publication date
KR930002431B1 (en) 1993-03-30

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