ATE479781T1 - METHOD FOR TREATING STEEL STRIP - Google Patents
METHOD FOR TREATING STEEL STRIPInfo
- Publication number
- ATE479781T1 ATE479781T1 AT06754580T AT06754580T ATE479781T1 AT E479781 T1 ATE479781 T1 AT E479781T1 AT 06754580 T AT06754580 T AT 06754580T AT 06754580 T AT06754580 T AT 06754580T AT E479781 T1 ATE479781 T1 AT E479781T1
- Authority
- AT
- Austria
- Prior art keywords
- annealing
- hardening
- heat treatment
- steel strip
- time
- Prior art date
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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- 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
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- 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
- C21D8/0405—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 of ferrous alloys
-
- 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
Abstract
The present invention relates to a method for treating a steel strip, particularly a steel strip made of highly resistant heat-treated steel, by cold rolling. The inventive method comprises at least a first step of heat treatment consisting of recrystallization annealing and at least another subsequent step of heat treatment consisting of hardening. Said method is characterized in that the time-temperature curve during the first step of heat treatment is chosen in such a way that only a partial recrystallization takes place and that the elongated structure produced by the previous strain-hardening is partially conserved. The inventive method enables reducing significantly the annealing time and annealing temperature during recrystallization annealing while at the same time reducing the annealing time during shape hardening. The processing chain can be reduced by more rapid annealing cycles, the reduction of the annealing temperature leading to significant energy savings. Said method allows producing e.g. semifinished sheet metal products for vehicle body components having an optimized strength/elongation ratio.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005045466.6A DE102005045466B4 (en) | 2005-09-22 | 2005-09-22 | Process for the treatment of steel strip |
PCT/EP2006/006184 WO2007033711A1 (en) | 2005-09-22 | 2006-06-27 | Method for treating a steel strip |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE479781T1 true ATE479781T1 (en) | 2010-09-15 |
Family
ID=37037079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT06754580T ATE479781T1 (en) | 2005-09-22 | 2006-06-27 | METHOD FOR TREATING STEEL STRIP |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1929055B1 (en) |
AT (1) | ATE479781T1 (en) |
DE (2) | DE102005045466B4 (en) |
WO (1) | WO2007033711A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006032617B4 (en) * | 2006-07-12 | 2008-04-03 | Universität Kassel | Process for the production of a sheet-metal semi-finished product suitable for molding |
DE102006049146B4 (en) * | 2006-10-17 | 2012-12-27 | Braun CarTec GmbH | Method for producing an assembly consisting of at least two interconnected sheet-metal parts |
DE102009016027A1 (en) * | 2009-04-02 | 2010-10-07 | Volkswagen Ag | Method for producing a component, in particular a body part, and production line for carrying out the method |
DE102021203239A1 (en) | 2021-03-30 | 2022-10-06 | Volkswagen Aktiengesellschaft | Process for the production of a sheet metal blank suitable for press hardening with different sheet metal thicknesses and process for the production of a press-hardened shaped sheet metal part |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1168462B (en) * | 1957-06-12 | 1964-04-23 | Cornigliano Societa Per Azioni | Process for recrystallization annealing of cold worked steel |
DE3406792A1 (en) * | 1984-02-24 | 1985-08-29 | Linde Ag, 6200 Wiesbaden | METHOD AND DEVICE FOR GLOWING METAL PARTS |
JPS6293341A (en) * | 1985-10-21 | 1987-04-28 | Kawasaki Steel Corp | Cold-rolled steel sheet for working and its production |
BE1010913A3 (en) * | 1997-02-11 | 1999-03-02 | Cockerill Rech & Dev | Annealing process substrate metal in parade. |
KR100536828B1 (en) * | 1997-09-22 | 2006-02-28 | 카가쿠기쥬쯔죠 킨조쿠자이료 기쥬쯔켄큐죠 | Grain steel based on fine-ferrite and method thereof |
US20030015263A1 (en) * | 2000-05-26 | 2003-01-23 | Chikara Kami | Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same |
DE10149220C1 (en) * | 2001-10-05 | 2002-08-08 | Benteler Automobiltechnik Gmbh | Process for producing a hardened sheet metal profile |
DE10149221C1 (en) * | 2001-10-05 | 2002-08-08 | Benteler Automobiltechnik Gmbh | Process for producing a hardened sheet metal profile |
JP4220871B2 (en) * | 2003-03-19 | 2009-02-04 | 株式会社神戸製鋼所 | High-tensile steel plate and manufacturing method thereof |
-
2005
- 2005-09-22 DE DE102005045466.6A patent/DE102005045466B4/en active Active
-
2006
- 2006-06-27 EP EP06754580A patent/EP1929055B1/en not_active Not-in-force
- 2006-06-27 DE DE502006007789T patent/DE502006007789D1/en active Active
- 2006-06-27 AT AT06754580T patent/ATE479781T1/en active
- 2006-06-27 WO PCT/EP2006/006184 patent/WO2007033711A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1929055A1 (en) | 2008-06-11 |
WO2007033711A1 (en) | 2007-03-29 |
DE102005045466A1 (en) | 2007-03-29 |
DE102005045466B4 (en) | 2015-10-29 |
DE502006007789D1 (en) | 2010-10-14 |
EP1929055B1 (en) | 2010-09-01 |
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