JPS55145123A - Manufacture of cold rolled steel sheet excellent in deep-drawing property - Google Patents

Manufacture of cold rolled steel sheet excellent in deep-drawing property

Info

Publication number
JPS55145123A
JPS55145123A JP5363679A JP5363679A JPS55145123A JP S55145123 A JPS55145123 A JP S55145123A JP 5363679 A JP5363679 A JP 5363679A JP 5363679 A JP5363679 A JP 5363679A JP S55145123 A JPS55145123 A JP S55145123A
Authority
JP
Japan
Prior art keywords
steel sheet
cold rolled
deep
drawing property
sheet excellent
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
JP5363679A
Other languages
Japanese (ja)
Other versions
JPS5910414B2 (en
Inventor
Osamu Shibazaki
Masakazu Araki
Isao Ito
Yoshio Sakamoto
Koichi Hirase
Hiroyuki Uesugi
Takumasa Shibayama
Kojiro Eguchi
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
Priority to JP5363679A priority Critical patent/JPS5910414B2/en
Publication of JPS55145123A publication Critical patent/JPS55145123A/en
Publication of JPS5910414B2 publication Critical patent/JPS5910414B2/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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing

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

Abstract

PURPOSE:To manufacture cold rolled sheet excellent in deep-drawing property, by the hot rolling of steel slab of very low carbon content, cntg. specific quantities of B, Al, N etc. to produce a steel sheet, and by the cold rolling and recrystallization annealing of the steel sheet after it is wound into a coil. CONSTITUTION:A slab of very low carbon content, contg. <0.01% C, <0.05% Si, <0.50% Mn, 0.0025-0.01% B, 0.005-0.05% Al, and N in an amount satisfying a formula: 14/11(B%-0.0005%)<N%<14/11B%+0.0025%, is manufactured by continuous casting. The slab is hot rolled at a finishing temp. not lower than 850 deg.C, and coiled after hot rolling at a temp. not lower than 600 deg.C, the coiling temp., to a composition <=0.0005% solid solution B, and <=0.005% solid solution N. Then the steel sheet is cold rolled at a reduction of area not smaller than 30% to a desired thickness, finally subjected to recrystallization annealing by continuous annealing system, then to 1% skin pass rolling, whereby cold rolled steel sheet excellent in deep-drawing property is manufactured.
JP5363679A 1979-05-01 1979-05-01 Method for producing cold-rolled steel sheets with excellent deep drawability Expired JPS5910414B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5363679A JPS5910414B2 (en) 1979-05-01 1979-05-01 Method for producing cold-rolled steel sheets with excellent deep drawability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5363679A JPS5910414B2 (en) 1979-05-01 1979-05-01 Method for producing cold-rolled steel sheets with excellent deep drawability

Publications (2)

Publication Number Publication Date
JPS55145123A true JPS55145123A (en) 1980-11-12
JPS5910414B2 JPS5910414B2 (en) 1984-03-08

Family

ID=12948385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5363679A Expired JPS5910414B2 (en) 1979-05-01 1979-05-01 Method for producing cold-rolled steel sheets with excellent deep drawability

Country Status (1)

Country Link
JP (1) JPS5910414B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104627A (en) * 1980-12-19 1982-06-29 Nippon Kokan Kk <Nkk> Manufacture of cold rolled soft steel plate with superior press formability by continuous annealing
JPS5819465A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of galvanized steel plate with superior press formability
US4410372A (en) * 1981-06-10 1983-10-18 Nippon Steel Corporation Process for producing deep-drawing, non-ageing, cold rolled steel strips having excellent paint bake-hardenability by continuous annealing
US4443272A (en) * 1981-09-19 1984-04-17 Nippon Steel Corporation Process for producing cold rolled steel sheets having excellent press formability and ageing property
US4627881A (en) * 1981-09-18 1986-12-09 Nippon Steel Corporation Cold rolled steel sheet having excellent press formability and method for producing the same
US7361237B2 (en) * 2001-01-26 2008-04-22 Usinor High-strength isotropic steel, method for making steel plates and resulting plates

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104627A (en) * 1980-12-19 1982-06-29 Nippon Kokan Kk <Nkk> Manufacture of cold rolled soft steel plate with superior press formability by continuous annealing
JPS616133B2 (en) * 1980-12-19 1986-02-24 Nippon Kokan Kk
US4410372A (en) * 1981-06-10 1983-10-18 Nippon Steel Corporation Process for producing deep-drawing, non-ageing, cold rolled steel strips having excellent paint bake-hardenability by continuous annealing
JPS5819465A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of galvanized steel plate with superior press formability
JPS6152218B2 (en) * 1981-07-27 1986-11-12 Nippon Kokan Kk
US4627881A (en) * 1981-09-18 1986-12-09 Nippon Steel Corporation Cold rolled steel sheet having excellent press formability and method for producing the same
US4678522A (en) * 1981-09-18 1987-07-07 Nippon Steel Corporation Cold rolled steel sheet having excellent press formability and method for producing the same
US4443272A (en) * 1981-09-19 1984-04-17 Nippon Steel Corporation Process for producing cold rolled steel sheets having excellent press formability and ageing property
US4981531A (en) * 1981-09-19 1991-01-01 Nippon Steel Corporation Process for producing cold rolled steel sheets having excellent press formability and ageing property
US7361237B2 (en) * 2001-01-26 2008-04-22 Usinor High-strength isotropic steel, method for making steel plates and resulting plates

Also Published As

Publication number Publication date
JPS5910414B2 (en) 1984-03-08

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