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KR830009235A - 고연성, 고강도 선재, 봉강의 제조법 - Google Patents

고연성, 고강도 선재, 봉강의 제조법 Download PDF

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Publication number
KR830009235A
KR830009235A KR1019820000339A KR820000339A KR830009235A KR 830009235 A KR830009235 A KR 830009235A KR 1019820000339 A KR1019820000339 A KR 1019820000339A KR 820000339 A KR820000339 A KR 820000339A KR 830009235 A KR830009235 A KR 830009235A
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South Korea
Prior art keywords
steel
manufacturing
wire rod
ductility
rolling
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KR1019820000339A
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KR890002653B1 (ko
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도시아끼 유도리
리꾸오 오가와
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다까하시 고오기찌
가부시끼 가이샤 고오베 세이고오쇼
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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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (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 Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

내용 없음

Description

고연성, 고강도 선재, 봉강의 제조법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 재가열되고 담금질된 봉강(직경 5.5mm)의 물 담금질후의 인장강도 및 면적축소(reduction of area)를 탐소함량과 관련하여 보여주는 다이아그램.
제2도는 400℃×60분 조질(tempering)한후 봉강의 인장강도 및 면적축소를 보여주는 다이아그램.
제3도는 0.14%C 탄소강의 담금질되고 조절된 재료(I)와 0.8%C 고탄소강의 페이턴팅된 재료(II)의 와이어 인발(wire drawing)에서 얻어진 인발비(drawing ratio)와 강도간의 관계를 보여주는 다이아그램.
제4도는 탄소함량과 마르텐사이트 변태온도간의 관계를 보여주는 다이아그램.
제5도는 본 발명으로 얻어진 봉강(A1)의 와이어인발에 있어서의 면적축소, 강도 및 인발비간의 관계를 보여주는 다이아그램.
제6도는 실시예 2에서 수행된 것과 같은 본 발명의 방법에 따른 압연 및 냉각조건을 보여주는 다이아그램.
제7도는 실시예 3에 대한 압연 및 냉각조건을 보여주는 제6도와 유사한 다이아그램.
제8도는 여러 공정으로 제조된 강철에 있어서 파괴응력과 탄소함량의 관계를 보여주는 다이아그램.

Claims (2)

  1. a) 중간 및 최종 압연온도는 1000℃ 이하이고 930℃ 이하 온도에서의 총 축소비율은 30% 이상이 되도록 압연조건을 조절하면서 0.2-0.4중량%의 C와 0.5-2.5중량%의 Mn와 잔여 철 및 불가피한 불순물을 함유하는 강철을 열간압연하는 단계와,
    b) 높은 연성의 마르텐사이트 조직이 형성되도록, 평균 냉각속도 20-250℃/sec로 압연직후 상기 강철을 350℃ 이하의 온도까지 냉각하는 단계,
    로 되어 있는 것을 특징으로 하는, 고연성, 고강도, 선재, 봉강의 제조법.
  2. 제1항에 있어서, 상기 마르텐사이트 강봉의 연성을 증진시키는데 유효한 양(量)으로부터 0.1중량% 이하까지의 Nb, 0.1중량% 이하까지의 V, 0.3중량% 이하까지의Ti 및 0.3중량% 이하까지의 Zr양으로, Nb, V, Ti 및 Zr 으로 된 군으로부터 선택된 적어도 한 원소를 상기 강철이 추가적으로 내포하는 것을 특징으로 하는 제조법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8200339A 1981-01-27 1982-01-27 고연성과 고강도의 강선재 또는 봉강을 제조하는 방법 Expired KR890002653B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP56-11031 1981-01-27
JP81-11031 1981-01-27
JP56011031A JPS57126913A (en) 1981-01-27 1981-01-27 Production of high-toughness high-strength wire or rod steel

Publications (2)

Publication Number Publication Date
KR830009235A true KR830009235A (ko) 1983-12-19
KR890002653B1 KR890002653B1 (ko) 1989-07-22

Family

ID=11766706

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KR8200339A Expired KR890002653B1 (ko) 1981-01-27 1982-01-27 고연성과 고강도의 강선재 또는 봉강을 제조하는 방법

Country Status (6)

Country Link
US (1) US4533401A (ko)
EP (1) EP0058016B1 (ko)
JP (1) JPS57126913A (ko)
KR (1) KR890002653B1 (ko)
CA (1) CA1196556A (ko)
DE (1) DE3271086D1 (ko)

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KR970065739A (ko) * 1996-03-30 1997-10-13 귄터 플레밍, 빌프리트 발트 롤러 가온된 강 프로필의 냉각방법

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US4578124A (en) * 1984-01-20 1986-03-25 Kabushiki Kaisha Kobe Seiko Sho High strength low carbon steels, steel articles thereof and method for manufacturing the steels
US4619714A (en) * 1984-08-06 1986-10-28 The Regents Of The University Of California Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes
US4613385A (en) * 1984-08-06 1986-09-23 Regents Of The University Of California High strength, low carbon, dual phase steel rods and wires and process for making same
DE3518925A1 (de) * 1985-05-25 1986-11-27 Kocks Technik Gmbh & Co, 4010 Hilden Verfahren zum kontrollierten stab- und drahtwalzen legierter staehle
US4671827A (en) * 1985-10-11 1987-06-09 Advanced Materials And Design Corp. Method of forming high-strength, tough, corrosion-resistant steel
US4960473A (en) * 1989-10-02 1990-10-02 The Goodyear Tire & Rubber Company Process for manufacturing steel filament
US5263307A (en) * 1991-02-15 1993-11-23 Hokkai Koki Co., Ltd. Corrosion resistant PC steel stranded cable and process of and apparatus for producing the same
US6165627A (en) * 1995-01-23 2000-12-26 Sumitomo Electric Industries, Ltd. Iron alloy wire and manufacturing method
FR2743574B1 (fr) * 1996-01-16 1998-02-13 Unimetall Sa Fil-machine adapte au renforcement
DE19962801A1 (de) * 1999-12-23 2001-06-28 Sms Demag Ag Verfahren zum Wärmebehandeln von Draht
KR100464962B1 (ko) * 2001-09-14 2005-01-05 삼화강봉주식회사 냉간압조 특성이 우수한 조질 강선
KR100469671B1 (ko) * 2002-07-11 2005-02-02 삼화강봉주식회사 냉간압조 특성이 우수한 소입소려 열처리강선
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US10619223B2 (en) 2016-04-28 2020-04-14 GM Global Technology Operations LLC Zinc-coated hot formed steel component with tailored property
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US11530469B2 (en) 2019-07-02 2022-12-20 GM Global Technology Operations LLC Press hardened steel with surface layered homogenous oxide after hot forming
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* Cited by examiner, † Cited by third party
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KR970065739A (ko) * 1996-03-30 1997-10-13 귄터 플레밍, 빌프리트 발트 롤러 가온된 강 프로필의 냉각방법

Also Published As

Publication number Publication date
EP0058016A1 (en) 1982-08-18
EP0058016B1 (en) 1986-05-14
US4533401A (en) 1985-08-06
JPH0112816B2 (ko) 1989-03-02
KR890002653B1 (ko) 1989-07-22
DE3271086D1 (en) 1986-06-19
CA1196556A (en) 1985-11-12
JPS57126913A (en) 1982-08-06

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