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 ANNEALINGInfo
- 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
Links
- 238000000137 annealing Methods 0.000 title abstract 3
- 239000010960 cold rolled steel Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000003475 lamination Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
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.
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE846022A (en) * | 1976-09-09 | 1977-03-09 | PROCESS FOR MANUFACTURING SHEET FOR STAMPING |
-
1979
- 1979-02-02 JP JP54010492A patent/JPS5830934B2/en not_active Expired
-
1980
- 1980-01-31 IT IT19577/80A patent/IT1193903B/en active
- 1980-01-31 DE DE3003489A patent/DE3003489C2/en not_active Expired
- 1980-02-01 GB GB8003498A patent/GB2050419B/en not_active Expired
- 1980-02-01 FR FR8002268A patent/FR2447969A1/en active Granted
- 1980-02-01 BR BR8000648A patent/BR8000648A/en not_active IP Right Cessation
- 1980-02-01 BE BE2/58382A patent/BE881490A/en not_active IP Right Cessation
Patent Citations (1)
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)
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 |
---|---|
JPS55104430A (en) | 1980-08-09 |
GB2050419B (en) | 1982-11-24 |
JPS5830934B2 (en) | 1983-07-02 |
GB2050419A (en) | 1981-01-07 |
BE881490A (en) | 1980-05-30 |
DE3003489C2 (en) | 1984-02-23 |
DE3003489A1 (en) | 1980-08-14 |
IT8019577A0 (en) | 1980-01-31 |
BR8000648A (en) | 1980-10-14 |
IT1193903B (en) | 1988-08-31 |
FR2447969B1 (en) | 1984-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |