EP0903419A4 - Tole d'acier mince ayant une aptitude elevee a l'emboutissage en tube rectangulaire, et procede de fabrication associe - Google Patents

Tole d'acier mince ayant une aptitude elevee a l'emboutissage en tube rectangulaire, et procede de fabrication associe

Info

Publication number
EP0903419A4
EP0903419A4 EP97913460A EP97913460A EP0903419A4 EP 0903419 A4 EP0903419 A4 EP 0903419A4 EP 97913460 A EP97913460 A EP 97913460A EP 97913460 A EP97913460 A EP 97913460A EP 0903419 A4 EP0903419 A4 EP 0903419A4
Authority
EP
European Patent Office
Prior art keywords
rolling
plate
same
thin steel
annealing
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.)
Withdrawn
Application number
EP97913460A
Other languages
German (de)
English (en)
Other versions
EP0903419A1 (fr
Inventor
Kaneharu Okuda
Yoshikazu Kawabata
Kei Sakata
Takaaki Hira
Atsushi Ogino
Takashi Obara
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP0903419A1 publication Critical patent/EP0903419A1/fr
Publication of EP0903419A4 publication Critical patent/EP0903419A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0447—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment
    • C21D8/0463—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0436—Cold rolling

Landscapes

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

Abstract

Pour fabriquer une tôle d'acier mince, ayant une aptitude élevée à l'emboutissage en tube rectangulaire, on lamine un acier, contenant au maximum 0,02 % en poids de C, 0,5 % en poids de Si; 1,0 % en poids de Mn; 0,15 % en poids de P; 0,02 % en poids de S; 0,01-0,10 % en poids de Al; 0,02 % en poids de N; 0,001-0,20 % en poids de Ti et/ou 0,001-0,15 % en poids de Nb, et un solde constitué de Fe et des impuretés inévitables, dans une plage de température comprise entre 950° et le point de transformation de Ar3; on soumet à un laminage de finition la tôle brute laminée, tout en la lubrifiant, dans une plage de température comprise entre le point de transformation de Ar3 et 500°, avec une inclinaison supérieure à 70 %; on décape la tôle mère obtenue; on la recuit dans des conditions satisfaisant aux équations suivantes: (T+273)(20+log t)≥2,50x104 (1) et 745≤T≤920 (2), dans lesquelles T représente la température de recuit de la tôle mère (°C), et T la durée de recuit de ladite tôle; on lamine à froid la tôle mère avec une inclinaison de 50-95 %, c'est-à-dire qu'on la soumet à une récristallisation-recuit. La tôle d'acier mince obtenue satisfait aux relations suivantes (r¿L? + rC)/2-rD≥0,67 et (rL + 2rD + rC)/4≥2,7, dans lesquelles rL représente la valeur de Lankford dans la direction faisant un angle de 45° par rapport à la direction de laminage et rC la valeur dans la direction perpendiculaire à la direction de laminage.
EP97913460A 1996-12-24 1997-11-27 Tole d'acier mince ayant une aptitude elevee a l'emboutissage en tube rectangulaire, et procede de fabrication associe Withdrawn EP0903419A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP34344996 1996-12-24
JP343449/96 1996-12-24
PCT/JP1997/004336 WO1998028457A1 (fr) 1996-12-24 1997-11-27 Tole d'acier mince ayant une aptitude elevee a l'emboutissage en tube rectangulaire, et procede de fabrication associe

Publications (2)

Publication Number Publication Date
EP0903419A1 EP0903419A1 (fr) 1999-03-24
EP0903419A4 true EP0903419A4 (fr) 2000-03-22

Family

ID=18361608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97913460A Withdrawn EP0903419A4 (fr) 1996-12-24 1997-11-27 Tole d'acier mince ayant une aptitude elevee a l'emboutissage en tube rectangulaire, et procede de fabrication associe

Country Status (3)

Country Link
EP (1) EP0903419A4 (fr)
CN (1) CN1083902C (fr)
WO (1) WO1998028457A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150211A (ja) * 1997-08-05 1999-02-23 Kawasaki Steel Corp 深絞り加工性に優れる厚物冷延鋼板およびその製造方法
WO2000006791A1 (fr) † 1998-07-27 2000-02-10 Nippon Steel Corporation Tole d'acier mince a base de ferrite presentant une excellente caracteristique de prise de forme, et son procede de fabrication
KR100711356B1 (ko) * 2005-08-25 2007-04-27 주식회사 포스코 가공성이 우수한 아연도금용 강판 및 그 제조방법
CN101514425B (zh) * 2008-02-21 2011-05-11 宝山钢铁股份有限公司 屈服强度160MPa级建筑抗震用低屈服点钢及其生产方法
CN104789899B (zh) * 2015-03-02 2017-09-01 河南工程学院 一种双面搪瓷用钢热轧板材及其制备工艺
CN111334716B (zh) * 2020-03-25 2021-04-13 江西理工大学 一种含铬钛硼的低碳高强深冲钢及其制备方法和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574814A2 (fr) * 1992-06-08 1993-12-22 Kawasaki Steel Corporation Tôle d'acier à résistance élevée laminée à froid, ayant une excellente aptitude à l'emboutissage profond et procédé pour sa fabrication
JPH07188776A (ja) * 1993-12-27 1995-07-25 Kawasaki Steel Corp 深絞り性に優れた高強度冷延鋼板の製造方法
JPH0841547A (ja) * 1994-08-01 1996-02-13 Kawasaki Steel Corp 深絞り性に優れる高強度冷延鋼板の製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662926A (en) * 1979-10-29 1981-05-29 Kawasaki Steel Corp Production of steel sheet having super high r value
JPS6043415B2 (ja) * 1980-07-07 1985-09-27 日本鋼管株式会社 耐ウオ−ルプレイク性に優れた角筒絞り用Ａｌキルド冷延鋼板の製造方法
JPS6386819A (ja) * 1986-09-30 1988-04-18 Kawasaki Steel Corp 深絞り用冷延鋼板の製造方法
JPH0765118B2 (ja) * 1987-05-22 1995-07-12 株式会社神戸製鋼所 角筒絞り性にすぐれる熱延鋼板の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574814A2 (fr) * 1992-06-08 1993-12-22 Kawasaki Steel Corporation Tôle d'acier à résistance élevée laminée à froid, ayant une excellente aptitude à l'emboutissage profond et procédé pour sa fabrication
JPH07188776A (ja) * 1993-12-27 1995-07-25 Kawasaki Steel Corp 深絞り性に優れた高強度冷延鋼板の製造方法
JPH0841547A (ja) * 1994-08-01 1996-02-13 Kawasaki Steel Corp 深絞り性に優れる高強度冷延鋼板の製造方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28) *
See also references of WO9828457A1 *

Also Published As

Publication number Publication date
WO1998028457A1 (fr) 1998-07-02
CN1083902C (zh) 2002-05-01
EP0903419A1 (fr) 1999-03-24
CN1198781A (zh) 1998-11-11

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