FR2447969A1 - METHOD FOR MANUFACTURING COLD ROLLED STEEL STRIPS WITH DEEP STAMPING BY SHORT-TERM CONTINUOUS ANNEALING - Google Patents

METHOD FOR MANUFACTURING COLD ROLLED STEEL STRIPS WITH DEEP STAMPING BY SHORT-TERM CONTINUOUS ANNEALING

Info

Publication number
FR2447969A1
FR2447969A1 FR8002268A FR8002268A FR2447969A1 FR 2447969 A1 FR2447969 A1 FR 2447969A1 FR 8002268 A FR8002268 A FR 8002268A FR 8002268 A FR8002268 A FR 8002268A FR 2447969 A1 FR2447969 A1 FR 2447969A1
Authority
FR
France
Prior art keywords
temperature
rolled steel
cold rolled
term continuous
short
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
FR8002268A
Other languages
French (fr)
Other versions
FR2447969B1 (en
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of FR2447969A1 publication Critical patent/FR2447969A1/en
Application granted granted Critical
Publication of FR2447969B1 publication Critical patent/FR2447969B1/fr
Granted 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
    • C21D8/0447—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 characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
    • 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
    • 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
    • C21D8/0421—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 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length

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 Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

LA PRESENTE INVENTION PREVOIT UN PROCEDE DE FABRICATION D'UNE BANDE EN ACIER LAMINE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE PAR RECUIT EN CONTINU DE COURTE DUREE, QUI COMPREND: UN LAMINAGE A CHAUD, UN LAMINAGE A FROID, UN CHAUFFAGE A UNE TEMPERATURE COMPRISE ENTRE 600C ET LA TEMPERATURE DE RECUIT A UNE CADENCE SUPERIEURE A 40CS, UN RECUIT A UNE TEMPERATURE T COMPRISE ENTRE 700C ET LA TEMPERATURE DE TRANSFORMATION A PENDANT UNE DUREE DETERMINEE PAR LA TENEUR EN CARBONE ET LA TEMPERATURE DE RECUIT T, UN REFROIDISSEMENT INITIAL LENT A UNE CADENCE INFERIEURE A 50CS, PUIS UN REFROIDISSEMENT RAPIDE A PARTIR D'UNE TEMPERATURE SUPERIEURE A 600C MAIS INFERIEURE A T - 0,027 (T - 680) (T23,7) C JUSQU'A UNE TEMPERATURE DE COALESCENCE A UNE CADENCE SUPERIEURE A 50CS, ET UN TRAITEMENT DE COALESCENCE A UNE TEMPERATURE COMPRISE ENTRE 300 ET 500C (INCLUS) PENDANT PLUS DE 2MINUTES.THE PRESENT INVENTION PROVIDES A PROCESS FOR THE MANUFACTURE OF A COLD ROLLED STEEL STRIP HAVING EXCELLENT SHORT-TERM CONTINUOUS FORMING FORMATION, WHICH INCLUDES: HOT LAMINATION, COLD LAMINATION, COMPRESSED HEATING BETWEEN 600C AND THE ANNEALING TEMPERATURE AT A RATE HIGHER THAN 40CS, ANNEALING AT A TEMPERATURE T BETWEEN 700C AND THE TRANSFORMATION TEMPERATURE FOR A DURATION DETERMINED BY THE CARBON CONTENT AND THE ANNUIT TEMPERATURE T, A SLOW INITIAL COOLING A CADENCE LESS THAN 50CS, THEN A RAPID COOLING FROM A TEMPERATURE HIGHER TO 600C BUT LESS THAN T - 0.027 (T - 680) (T23.7) C UP TO A COALESCENT TEMPERATURE A HIGHER THAN 50CS, AND A COALESCING TREATMENT AT A TEMPERATURE BETWEEN 300 AND 500C (INCLUDED) FOR MORE THAN 2 MINUTES.

FR8002268A 1979-02-02 1980-02-01 METHOD FOR MANUFACTURING COLD ROLLED STEEL STRIPS WITH DEEP STAMPING BY SHORT-TERM CONTINUOUS ANNEALING Granted FR2447969A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54010492A JPS5830934B2 (en) 1979-02-02 1979-02-02 Manufacturing method of cold-rolled steel sheet with good formability by short-time continuous annealing

Publications (2)

Publication Number Publication Date
FR2447969A1 true FR2447969A1 (en) 1980-08-29
FR2447969B1 FR2447969B1 (en) 1984-06-15

Family

ID=11751672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8002268A Granted FR2447969A1 (en) 1979-02-02 1980-02-01 METHOD FOR MANUFACTURING COLD ROLLED STEEL STRIPS WITH DEEP STAMPING BY SHORT-TERM CONTINUOUS ANNEALING

Country Status (7)

Country Link
JP (1) JPS5830934B2 (en)
BE (1) BE881490A (en)
BR (1) BR8000648A (en)
DE (1) DE3003489C2 (en)
FR (1) FR2447969A1 (en)
GB (1) GB2050419B (en)
IT (1) IT1193903B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001027340A1 (en) * 1999-10-13 2001-04-19 Centre De Recherches Metallurgiques Method for making a cold rolled steel strip for deep-drawing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857492B2 (en) * 1980-09-25 1983-12-20 新日本製鐵株式会社 Manufacturing method of high-strength cold-rolled steel sheet for automobiles
JPS5773132A (en) * 1980-10-24 1982-05-07 Nippon Kokan Kk <Nkk> Production of cold rolled mild steel plate of superior deep drawability and aging resistance by continuous annealing
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE846022A (en) * 1976-09-09 1977-03-09 PROCESS FOR MANUFACTURING SHEET FOR STAMPING

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE846022A (en) * 1976-09-09 1977-03-09 PROCESS FOR MANUFACTURING SHEET FOR STAMPING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001027340A1 (en) * 1999-10-13 2001-04-19 Centre De Recherches Metallurgiques Method for making a cold rolled steel strip for deep-drawing
BE1012934A3 (en) * 1999-10-13 2001-06-05 Ct Rech Metallurgiques Asbl Manufacturing method of steel strip for cold rolled deep.
US6638380B1 (en) 1999-10-13 2003-10-28 Centre De Recherches Metallurgiques Method for making a cold rolled steel strip for deep-drawing

Also Published As

Publication number Publication date
GB2050419B (en) 1982-11-24
BE881490A (en) 1980-05-30
BR8000648A (en) 1980-10-14
IT1193903B (en) 1988-08-31
DE3003489A1 (en) 1980-08-14
IT8019577A0 (en) 1980-01-31
GB2050419A (en) 1981-01-07
JPS55104430A (en) 1980-08-09
FR2447969B1 (en) 1984-06-15
DE3003489C2 (en) 1984-02-23
JPS5830934B2 (en) 1983-07-02

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Legal Events

Date Code Title Description
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