JPS55145122A - Manufacture of high-tension cold rolled steel sheet excellent in chemical treatment property - Google Patents

Manufacture of high-tension cold rolled steel sheet excellent in chemical treatment property

Info

Publication number
JPS55145122A
JPS55145122A JP5313079A JP5313079A JPS55145122A JP S55145122 A JPS55145122 A JP S55145122A JP 5313079 A JP5313079 A JP 5313079A JP 5313079 A JP5313079 A JP 5313079A JP S55145122 A JPS55145122 A JP S55145122A
Authority
JP
Japan
Prior art keywords
steel sheet
cold rolled
rolled steel
chemical treatment
treatment property
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP5313079A
Other languages
Japanese (ja)
Other versions
JPS5849619B2 (en
Inventor
Shigeru Wakano
Takeo Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP5313079A priority Critical patent/JPS5849619B2/en
Publication of JPS55145122A publication Critical patent/JPS55145122A/en
Publication of JPS5849619B2 publication Critical patent/JPS5849619B2/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

  • 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)
  • Chemical Treatment Of Metals (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To improve the chemical treatment property of high-tension cold rolled steel sheet, by, in continuous annealing of the cold rolled steel sheet, heating previously the steel sheet in an oxidizing atmosphere to form oxide film on the surface of the steel sheet, then by heating and cooling the steel sheet in a reducing atmosphere. CONSTITUTION:In continuous annealing of high-tension cold rolled steel sheet, it is heated initially at a temp. 350-650 deg.C for 5sec-10min in an oxidizing atmosphere, hence Fe and various other alloy elements contained in the steel sheet are equally oxidized to form oxide film on the surface of the steel sheet. Then the steel sheet is heated to 800 deg.C, the recrystallization temp., in a reducing atmosphere composed of 40% hydrogen, the balance being nitrogen, soaked at the temp. for 2min, and is allowed to cool. This heat treatment prevents the selective surface-concentration of Mn, S etc. in the surface of the steel sheet, and improves the surface properties, thereby permitting manufacture of high-tension cold rolled steel sheet excellent in chemical treatment property.
JP5313079A 1979-04-28 1979-04-28 Method for manufacturing high-strength cold-rolled steel sheet with excellent chemical conversion treatment properties Expired JPS5849619B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5313079A JPS5849619B2 (en) 1979-04-28 1979-04-28 Method for manufacturing high-strength cold-rolled steel sheet with excellent chemical conversion treatment properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5313079A JPS5849619B2 (en) 1979-04-28 1979-04-28 Method for manufacturing high-strength cold-rolled steel sheet with excellent chemical conversion treatment properties

Publications (2)

Publication Number Publication Date
JPS55145122A true JPS55145122A (en) 1980-11-12
JPS5849619B2 JPS5849619B2 (en) 1983-11-05

Family

ID=12934219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5313079A Expired JPS5849619B2 (en) 1979-04-28 1979-04-28 Method for manufacturing high-strength cold-rolled steel sheet with excellent chemical conversion treatment properties

Country Status (1)

Country Link
JP (1) JPS5849619B2 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084875A1 (en) * 2007-01-09 2008-07-17 Nippon Steel Corporation Process for producing high-strength cold rolled steel sheet excelling in chemical treatability and relevant production equipment
WO2011078412A1 (en) 2009-12-25 2011-06-30 Ｊｆｅスチール株式会社 High-strength cold rolled steel sheet and method for producing same
WO2011122694A1 (en) 2010-03-29 2011-10-06 Ｊｆｅスチール株式会社 METHOD FOR PRODUCING HIGH-Si COLD ROLLED STEEL SHEET HAVING EXCELLENT CHEMICAL CONVERSION TREATABILITY
WO2012043776A1 (en) 2010-09-29 2012-04-05 Ｊｆｅスチール株式会社 High-strength steel sheet and manufacturing method therefor
JP2013124382A (en) * 2011-12-14 2013-06-24 Jfe Steel Corp High-strength steel sheet excellent in chemical treating properties and manufacturing method therefor
JP2013124383A (en) * 2011-12-14 2013-06-24 Jfe Steel Corp High-strength steel sheet and manufacturing method therefor
WO2014136412A1 (en) 2013-03-04 2014-09-12 Ｊｆｅスチール株式会社 High-strength steel sheet, method for manufacturing same, high-strength molten-zinc-plated steel sheet, and method for manufacturing same
KR20150013719A (en) 2012-06-15 2015-02-05 제이에프이 스틸 가부시키가이샤 High-strength steel sheet, high-strength hot-dip zinc-coated steel sheet, and methods for producing said steel sheets
KR20150017767A (en) 2012-07-23 2015-02-17 제이에프이 스틸 가부시키가이샤 High-strength steel plate and method for producing same
WO2015075911A1 (en) 2013-11-22 2015-05-28 Ｊｆｅスチール株式会社 High-strength steel sheet and method for manufacturing same
KR20150124456A (en) 2010-09-30 2015-11-05 제이에프이 스틸 가부시키가이샤 High strength steel sheet and method for manufacturing the same
KR20160122834A (en) 2014-02-18 2016-10-24 제이에프이 스틸 가부시키가이샤 High-strength steel sheet and method for producing same
KR20160122813A (en) 2014-02-18 2016-10-24 제이에프이 스틸 가부시키가이샤 High-strength steel plate and method for producing high-strength steel plate
US10301701B2 (en) 2014-02-18 2019-05-28 Jfe Steel Corporation High-strength hot-dip galvanized steel sheet and method for producing same
US10400315B2 (en) 2013-07-04 2019-09-03 ArcelorMittal Investigación y Desarrollo, S.L. Cold rolled steel sheet and vehicle
US10837074B2 (en) 2012-03-19 2020-11-17 Jfe Steel Corporation Method for manufacturing high strength galvanized steel sheet and high strength galvanized steel sheet

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8834651B2 (en) 2007-01-09 2014-09-16 Nippon Steel & Sumitomo Metal Corporation Method of production and production facility of high strength cold rolled steel sheet excellent in chemical convertibility
WO2008084875A1 (en) * 2007-01-09 2008-07-17 Nippon Steel Corporation Process for producing high-strength cold rolled steel sheet excelling in chemical treatability and relevant production equipment
WO2011078412A1 (en) 2009-12-25 2011-06-30 Ｊｆｅスチール株式会社 High-strength cold rolled steel sheet and method for producing same
US9090952B2 (en) 2009-12-25 2015-07-28 Jfe Steel Corporation High-strength cold-rolled steel sheet and method for producing the same
WO2011122694A1 (en) 2010-03-29 2011-10-06 Ｊｆｅスチール株式会社 METHOD FOR PRODUCING HIGH-Si COLD ROLLED STEEL SHEET HAVING EXCELLENT CHEMICAL CONVERSION TREATABILITY
US8911574B2 (en) 2010-03-29 2014-12-16 Jfe Steel Corporation Method for manufacturing high-Si cold rolled steel sheet having excellent chemical conversion properties
US9598743B2 (en) 2010-09-29 2017-03-21 Jfe Steel Corporation High strength steel sheet and method for manufacturing the same
WO2012043776A1 (en) 2010-09-29 2012-04-05 Ｊｆｅスチール株式会社 High-strength steel sheet and manufacturing method therefor
KR20150124456A (en) 2010-09-30 2015-11-05 제이에프이 스틸 가부시키가이샤 High strength steel sheet and method for manufacturing the same
US9534270B2 (en) 2010-09-30 2017-01-03 Jfe Steel Corporation High strength steel sheet and method for manufacturing the same
JP2013124383A (en) * 2011-12-14 2013-06-24 Jfe Steel Corp High-strength steel sheet and manufacturing method therefor
JP2013124382A (en) * 2011-12-14 2013-06-24 Jfe Steel Corp High-strength steel sheet excellent in chemical treating properties and manufacturing method therefor
US10837074B2 (en) 2012-03-19 2020-11-17 Jfe Steel Corporation Method for manufacturing high strength galvanized steel sheet and high strength galvanized steel sheet
KR20160143893A (en) 2012-06-15 2016-12-14 제이에프이 스틸 가부시키가이샤 High-strength steel sheet, high-strength hot-dip zinc-coated steel sheet, and methods for producing said steel sheets
KR20150013719A (en) 2012-06-15 2015-02-05 제이에프이 스틸 가부시키가이샤 High-strength steel sheet, high-strength hot-dip zinc-coated steel sheet, and methods for producing said steel sheets
KR20150017767A (en) 2012-07-23 2015-02-17 제이에프이 스틸 가부시키가이샤 High-strength steel plate and method for producing same
KR20150122775A (en) 2013-03-04 2015-11-02 제이에프이 스틸 가부시키가이샤 High-strength steel sheet, method for manufacturing same, high-strength molten-zinc-plated steel sheet, and method for manufacturing same
US10174411B2 (en) 2013-03-04 2019-01-08 Jfe Steel Corporation High-strength steel sheet and production method therefor and high-strength galvanized steel sheet and production method therefor (as amended)
WO2014136412A1 (en) 2013-03-04 2014-09-12 Ｊｆｅスチール株式会社 High-strength steel sheet, method for manufacturing same, high-strength molten-zinc-plated steel sheet, and method for manufacturing same
US10400315B2 (en) 2013-07-04 2019-09-03 ArcelorMittal Investigación y Desarrollo, S.L. Cold rolled steel sheet and vehicle
KR20160089440A (en) 2013-11-22 2016-07-27 제이에프이 스틸 가부시키가이샤 High-strength steel sheet and method for manufacturing same
WO2015075911A1 (en) 2013-11-22 2015-05-28 Ｊｆｅスチール株式会社 High-strength steel sheet and method for manufacturing same
US10597741B2 (en) 2013-11-22 2020-03-24 Jfe Steel Corporation High-strength steel sheet and method for manufacturing the same
KR20160122834A (en) 2014-02-18 2016-10-24 제이에프이 스틸 가부시키가이샤 High-strength steel sheet and method for producing same
KR20160122813A (en) 2014-02-18 2016-10-24 제이에프이 스틸 가부시키가이샤 High-strength steel plate and method for producing high-strength steel plate
US10301701B2 (en) 2014-02-18 2019-05-28 Jfe Steel Corporation High-strength hot-dip galvanized steel sheet and method for producing same

Also Published As

Publication number Publication date
JPS5849619B2 (en) 1983-11-05

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