RU2008109221A - METHOD AND DEVICE FOR CREATING SPECIFIC COMBINATIONS OF MULTI-PHASE STEEL PROPERTIES - Google Patents
METHOD AND DEVICE FOR CREATING SPECIFIC COMBINATIONS OF MULTI-PHASE STEEL PROPERTIES Download PDFInfo
- Publication number
- RU2008109221A RU2008109221A RU2008109221/02A RU2008109221A RU2008109221A RU 2008109221 A RU2008109221 A RU 2008109221A RU 2008109221/02 A RU2008109221/02 A RU 2008109221/02A RU 2008109221 A RU2008109221 A RU 2008109221A RU 2008109221 A RU2008109221 A RU 2008109221A
- Authority
- RU
- Russia
- Prior art keywords
- annealing
- line
- steel
- duration
- martensite
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 17
- 229910000831 Steel Inorganic materials 0.000 title claims abstract 11
- 239000010959 steel Substances 0.000 title claims abstract 11
- 238000000137 annealing Methods 0.000 claims abstract 19
- 229910000734 martensite Inorganic materials 0.000 claims abstract 7
- 238000005098 hot rolling Methods 0.000 claims abstract 5
- 229910001563 bainite Inorganic materials 0.000 claims abstract 4
- 238000004519 manufacturing process Methods 0.000 claims abstract 4
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract 4
- 238000005266 casting Methods 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 3
- 238000005096 rolling process Methods 0.000 claims abstract 3
- 238000001816 cooling Methods 0.000 claims abstract 2
- 238000009826 distribution Methods 0.000 claims abstract 2
- 239000011159 matrix material Substances 0.000 claims abstract 2
- 239000002244 precipitate Substances 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims 5
- 238000009434 installation Methods 0.000 claims 5
- 238000005246 galvanizing Methods 0.000 claims 3
- 239000000047 product Substances 0.000 claims 1
- 229910000885 Dual-phase steel Inorganic materials 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
- 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
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
- C21D1/26—Methods of 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
- C21D6/00—Heat treatment 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following 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 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
- C21D8/0463—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 following 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Coating With Molten Metal (AREA)
- Metal Rolling (AREA)
Abstract
1. Способ обеспечения определенной комбинации свойств у горячекатаной многофазной стали, многофазная структура которой содержит минимум 30% феррита и максимум 50% мартенсита, в частности, у двухфазной стали и стали с TRIP-эффектом, получаемой в обычной линии для горячей прокатки, в линии литья и прокатки тонких слябов или в соответствующих линиях узко- и среднеполосовых станов, или в линии проволочного стана со стандартным составом и условиями проведения процесса, отличающийся тем, что после охлаждения, следующего за горячей прокаткой (10) или другой технологической операцией, например, изготовления деталей посредством последующего или промежуточного отжига (30, 35) с переменными температурой и продолжительностью, приобретает желательную комбинацию прочности и отношения предела текучести к пределу прочности у многофазной стали. ! 2. Способ по п.1, отличающийся тем, что отжиг (30, 35) производят таким образом, что полученная структура состоит из основной ферритной матрицы, а также из отпущенного мартенсита или бейнита с долей поверхности порядка 10-50%, причем посредством температуры отжига устанавливают величину предела текучести, обеспечивая мелкодисперсное распределение выделений карбидов на границах зерен мартенсита или бейнита, а уровень предела прочности устанавливают посредством продолжительности отжига. ! 3. Способ по п.1 или 2, отличающийся тем, что отжиг (30, 35) проводят при температуре, менее или равной 600°С, и продолжительности, менее или равной 120 с. ! 4. Способ по п.1 или 2, отличающийся тем, что отжиг (30, 35) проводится в устройстве непрерывного действия в автономном режиме «off-line». ! 5. Способ по п.1 или 2, отличающийся те�1. A method for ensuring a certain combination of properties in hot-rolled multi-phase steel, the multi-phase structure of which contains a minimum of 30% ferrite and a maximum of 50% martensite, in particular, dual-phase steel and TRIP-effect steel produced in a conventional hot rolling line, in a casting line and rolling of thin slabs either in the corresponding lines of narrow and medium strip mills, or in a wire mill line with standard composition and process conditions, characterized in that after cooling following hot rolling (10) or other technological operation, for example, the manufacture of parts through subsequent or intermediate annealing (30, 35) with variable temperature and duration, acquires the desired combination of strength and yield-to-tensile strength ratio of the multiphase steel. ! 2. Method according to claim 1, characterized in that the annealing (30, 35) is carried out in such a way that the resulting structure consists of a main ferrite matrix, as well as tempered martensite or bainite with a surface fraction of the order of 10-50%, and by means of temperature annealing sets the value of the yield strength, ensuring a finely dispersed distribution of carbide precipitates at the grain boundaries of martensite or bainite, and the level of tensile strength is set through the duration of annealing. ! 3. Method according to claim 1 or 2, characterized in that annealing (30, 35) is carried out at a temperature less than or equal to 600°C and a duration of less than or equal to 120 s. ! 4. Method according to claim 1 or 2, characterized in that annealing (30, 35) is carried out in a continuous device in an off-line mode. ! 5. Method according to claim 1 or 2, differing in that
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006001198.8 | 2006-01-10 | ||
DE102006001198A DE102006001198A1 (en) | 2006-01-10 | 2006-01-10 | Method and device for setting specific property combinations in multiphase steels |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2008109221A true RU2008109221A (en) | 2009-09-27 |
RU2379359C2 RU2379359C2 (en) | 2010-01-20 |
Family
ID=37908011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2008109221/02A RU2379359C2 (en) | 2006-01-10 | 2006-12-11 | Method and device for creation of particular componation of properties for multiphase steel |
Country Status (10)
Country | Link |
---|---|
US (1) | US20090151821A1 (en) |
EP (1) | EP1974064A1 (en) |
JP (1) | JP2009522452A (en) |
CN (1) | CN101415846B (en) |
BR (1) | BRPI0620929A2 (en) |
CA (1) | CA2636287A1 (en) |
DE (1) | DE102006001198A1 (en) |
RU (1) | RU2379359C2 (en) |
UA (1) | UA90348C2 (en) |
WO (1) | WO2007079876A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008055514A1 (en) | 2008-12-12 | 2010-06-17 | Thyssenkrupp Steel Europe Ag | Method for producing a component with improved elongation at break properties |
DE102013107100A1 (en) * | 2013-07-05 | 2015-01-08 | Thyssenkrupp Steel Europe Ag | Wear-resistant, at least partially uncoated steel part |
PL228818B1 (en) * | 2015-04-14 | 2018-05-30 | Mejer-Nowakowska Magdalena M.S. Steel Spółka Cywilna | Method for annealing of wire |
DE102016202381B4 (en) * | 2016-02-17 | 2022-08-18 | Thyssenkrupp Ag | vehicle wheel |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6148521A (en) * | 1984-08-10 | 1986-03-10 | Nippon Steel Corp | Manufacture of reinforcing bar steel superior in low temperature toughness and strength |
JPH0759726B2 (en) * | 1987-05-25 | 1995-06-28 | 株式会社神戸製鋼所 | Method for manufacturing high strength cold rolled steel sheet with excellent local ductility |
CN1017352B (en) * | 1988-12-12 | 1992-07-08 | 武汉钢铁公司 | Production technology for cold-rolled biphase steel |
JPH0995731A (en) * | 1995-10-02 | 1997-04-08 | Nkk Corp | Production of building steel for low temperature use |
US6190469B1 (en) * | 1996-11-05 | 2001-02-20 | Pohang Iron & Steel Co., Ltd. | Method for manufacturing high strength and high formability hot-rolled transformation induced plasticity steel containing copper |
JPH10298648A (en) * | 1997-04-23 | 1998-11-10 | Nippon Steel Corp | Manufacture of high tensile strength steel product having high uniform elongation and low yield ratio |
TW459053B (en) * | 1997-12-19 | 2001-10-11 | Exxon Production Research Co | Ultra-high strength dual phase steels with excellent cryogenic temperature toughness |
US6423426B1 (en) * | 1999-04-21 | 2002-07-23 | Kawasaki Steel Corporation | High tensile hot-dip zinc-coated steel plate excellent in ductility and method for production thereof |
JP3587126B2 (en) * | 1999-04-21 | 2004-11-10 | Jfeスチール株式会社 | High tensile hot-dip galvanized steel sheet excellent in ductility and method for producing the same |
JP4156889B2 (en) * | 2001-10-03 | 2008-09-24 | 株式会社神戸製鋼所 | Composite steel sheet with excellent stretch flangeability and method for producing the same |
FR2830260B1 (en) * | 2001-10-03 | 2007-02-23 | Kobe Steel Ltd | DOUBLE-PHASE STEEL SHEET WITH EXCELLENT EDGE FORMABILITY BY STRETCHING AND METHOD OF MANUFACTURING THE SAME |
JP2004285430A (en) * | 2003-03-24 | 2004-10-14 | Nomura Kogyo Kk | Method for producing forged product |
-
2006
- 2006-01-10 DE DE102006001198A patent/DE102006001198A1/en not_active Withdrawn
- 2006-12-11 BR BRPI0620929-7A patent/BRPI0620929A2/en not_active IP Right Cessation
- 2006-12-11 JP JP2008549775A patent/JP2009522452A/en active Pending
- 2006-12-11 RU RU2008109221/02A patent/RU2379359C2/en not_active IP Right Cessation
- 2006-12-11 EP EP06829499A patent/EP1974064A1/en not_active Withdrawn
- 2006-12-11 CN CN2006800508559A patent/CN101415846B/en not_active Expired - Fee Related
- 2006-12-11 UA UAA200804988A patent/UA90348C2/en unknown
- 2006-12-11 WO PCT/EP2006/011909 patent/WO2007079876A1/en active Application Filing
- 2006-12-11 CA CA002636287A patent/CA2636287A1/en not_active Abandoned
- 2006-12-11 US US11/992,856 patent/US20090151821A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE102006001198A1 (en) | 2007-07-12 |
WO2007079876A1 (en) | 2007-07-19 |
JP2009522452A (en) | 2009-06-11 |
EP1974064A1 (en) | 2008-10-01 |
UA90348C2 (en) | 2010-04-26 |
RU2379359C2 (en) | 2010-01-20 |
CN101415846A (en) | 2009-04-22 |
BRPI0620929A2 (en) | 2011-11-29 |
CA2636287A1 (en) | 2007-07-19 |
US20090151821A1 (en) | 2009-06-18 |
CN101415846B (en) | 2011-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20131212 |