EP0866738B1 - Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite - Google Patents
Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite Download PDFInfo
- Publication number
- EP0866738B1 EP0866738B1 EP96941719A EP96941719A EP0866738B1 EP 0866738 B1 EP0866738 B1 EP 0866738B1 EP 96941719 A EP96941719 A EP 96941719A EP 96941719 A EP96941719 A EP 96941719A EP 0866738 B1 EP0866738 B1 EP 0866738B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- casting
- alloy
- thickness
- accordance
- 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.)
- Revoked
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
Definitions
- the continuous casting processes can also be used, in especially continuous casting between 2 cooled cylinders, which has the advantage of limiting and often avoiding the hot rolling operation, but is implemented delicate for alloys heavily loaded with elements addition.
- the process possibly includes, on the one hand, an annealing of the strip cast before rolling at a temperature included between 420 and 600 ° C depending on the composition of the alloy, on the other hand a heat treatment of the rolled strip by dissolved between 420 and 600 ° C, quenching and tempering at temperature ⁇ 300 ° C.
- a refining treatment was carried out using an alloy aluminum-titanium-boron type AT5B introduced into the metal liquid in the processing oven.
- the microstructure is healthy in all cases, except for test # 14.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
Description
- l'élaboration d'un alliage d'aluminium contenant (en poids) de 0,95 à 13% de Si, de 0 à 2% de Mg, et/ou de 0 à 1% de manganèse, et/ou de 0 à 2% de Cu, et/ou de 0 à 2% de Fe, les autres éléments étant inférieurs à 0,5% chacun et 2% au total,
- la coulée continue de cet alliage entre 2 cylindres refroidis pour obtenir une bande d'épaisseur comprise entre 1,5 et 5 mm,
- éventuellement le laminage à froid de cette bande à une épaisseur inférieure à 2 mm,
A' | 1,5 mm | 700 t/m |
B' | 5 mm | 300 t/m |
Si: 2,6 - 13 Mg: 1,4 - 2 Cu < 2 Fe < 0,4 (et, de préférence, < 0,25) Mn < 0,5.
Alliage | Si | Mg | Cu | Fe | Mn |
A | 7,05 | 0,56 | 0,12 | 0,21 | 0,03 |
B | 7,02 | 0,60 | 0,002 | 0,14 | 0,02 |
C | 4,8 | 1,42 | 1,80 | 0,18 | 0,04 |
D | 11,9 | 0,50 | 0,19 | 0,29 | 0,33 |
E | 2,0 | 1,83 | 0,92 | 0,22 | 0,02 |
Essai | 1 | 2 | 3 | 4 | 5 |
Epaisseur coulée (mm) | 2,4 | 1,6 | 4,8 | 2,3 | 3,7 |
Effort (t/m) | 132 | 158 | 213 | 403 | 685 |
Microstructure | saine | saine | saine | saine | impropre |
R0,2 = 240 MPa Rm = 315 MPa n = 0,273
Essai | Epaisseur mm | Effort t/m |
1 | 2,40 | 483 |
2 | 2,55 | 533 |
3 | 2,62 | 583 |
4 | 2,80 | 450 |
5 | 3,00 | 383 |
6 | 3,10 | 473 |
7 | 3,25 | 560 |
8 | 3,36 | 466 |
9 | 3,55 | 450 |
10 | 3,65 | 473 |
11 | 3,75 | 360 |
12 | 3,90 | 366 |
13 | 3,98 | 326 |
14 | 4,06 | 633 |
Essai | 1 | 2 | 3 |
Epaisseur coulée (mm) | 2,51 | 4,14 | 3,80 |
Effort (t/m) | 240 | 489 | 632 |
Microstructure | saine | saine | Impropre |
R0,2 = 275 MPa Rm = 345 MPa n = 0,286
Essai | 1 | 2 | 3 | 4 | 5 | 6 |
Epaisseur coulée (mm) | 4,3 | 1,8 | 1,9 | 3,6 | 2,3 | 4,15 |
Effort (t/m) | 132 | 198 | 286 | 456 | 763 | 863 |
Microstructure | saine | saine | saine | saine | impropres |
n° 1 | R0,2 = 168 MPa | Rm = 356 MPa | n = 0,263 |
n° 3 | R0,2 = 179 MPa | Rm = 345 MPa | n = 0,289 |
Essai | 1 | 2 | 3 |
Epaisseur coulée (mm) | 3,23 | 4,30 | 2,15 |
Effort (t/m) | 207 | 456 | 603 |
Microstructure | saine | saine | saine |
R0,2 = 210 MPa Rm = 320 MPa n = 0,299
Claims (5)
- Procédé de fabrication de bandes en alliage d'aluminium à résistance mécanique élevée et bonne formabilité, comportant:l'élaboration d'un alliage contenant en poids de 0,95 à 13% de Si, de 0 à 2% de Mg et/ou de 0 à 2% de Cu, et/ou de 0 à 1% de Mn, et/ou de 0 à 2% de Fe, les autres éléments étant < 0,5% chacun et 2% au total,la coulée continue de cet alliage entre 2 cylindres refroidis pour obtenir une bande coulée d'épaisseur comprise entre 1,5 et 5 mm, l'effort appliqué aux cylindres étant maintenu, dans un diagramme ayant pour abscisse l'épaisseur de coulée et pour ordonnée l'effort spécifique , au dessous de la droite A'B',les coordonnées de A' et B' étant:
A' 1,5 mm 700 t par mètre de largeur de bande coulée B' 5 mm 300 t/m éventuellement le laminage à froid de cette bande. - Procédé selon la revendication 1 dans lequel l'alliage coulé est tel que Si > 2,6% et Mg > 1,4%.
- Procédé selon l'une des revendications 1 ou 2, dans lequel on procède, entre la coulée et le laminage à froid, à un recuit d'homogénéisation entre 420 et 600°C.
- Procédé selon l'une des revendications 1 à 3, dans lequel la bande laminée est soumise à une mise en solution entre 420 et 600°C, une trempe et un revenu à une température inférieure à 300°C.
- Utilisation d'une bande en alliage AlSiMgCu de composition: Si: 2,6 - 13%, Mg: 1,4 - 2%, Cu < 2% obtenue selon le procédé de la revendication 4 pour des éléments de carrosserie automobile.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9514881A FR2742165B1 (fr) | 1995-12-12 | 1995-12-12 | Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite |
FR9514881 | 1995-12-12 | ||
PCT/FR1996/001956 WO1997021508A1 (fr) | 1995-12-12 | 1996-12-09 | Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0866738A1 EP0866738A1 (fr) | 1998-09-30 |
EP0866738B1 true EP0866738B1 (fr) | 2001-11-21 |
Family
ID=9485540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96941719A Revoked EP0866738B1 (fr) | 1995-12-12 | 1996-12-09 | Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite |
Country Status (9)
Country | Link |
---|---|
US (1) | US6193818B1 (fr) |
EP (1) | EP0866738B1 (fr) |
JP (1) | JP2000501995A (fr) |
KR (1) | KR100434808B1 (fr) |
AU (1) | AU1101297A (fr) |
DE (1) | DE69617265T2 (fr) |
ES (1) | ES2163664T3 (fr) |
FR (1) | FR2742165B1 (fr) |
WO (1) | WO1997021508A1 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1017948A1 (fr) * | 1997-09-15 | 2000-07-12 | Alusuisse Technology & Management AG | Chemise de cylindre |
US7125612B2 (en) * | 2001-02-20 | 2006-10-24 | Alcoa Inc. | Casting of non-ferrous metals |
US6672368B2 (en) * | 2001-02-20 | 2004-01-06 | Alcoa Inc. | Continuous casting of aluminum |
US7503378B2 (en) * | 2001-02-20 | 2009-03-17 | Alcoa Inc. | Casting of non-ferrous metals |
DE60215579T2 (de) * | 2001-05-17 | 2007-05-10 | Furukawa-Sky Aluminum Corp. | Aluminiumlegierung geeignet für Bleche und ein Verfahren zu deren Herstellung |
US7464746B2 (en) * | 2006-08-09 | 2008-12-16 | Nucor Corporation | Method of casting thin cast strip |
US20080041501A1 (en) * | 2006-08-16 | 2008-02-21 | Commonwealth Industries, Inc. | Aluminum automotive heat shields |
US8403027B2 (en) | 2007-04-11 | 2013-03-26 | Alcoa Inc. | Strip casting of immiscible metals |
US7846554B2 (en) | 2007-04-11 | 2010-12-07 | Alcoa Inc. | Functionally graded metal matrix composite sheet |
US20090159160A1 (en) * | 2007-12-20 | 2009-06-25 | Commonwealth Industries, Inc. | Method for making high strength aluminum alloy sheet and products made by same |
DE102008046803B4 (de) * | 2008-09-11 | 2011-01-27 | Audi Ag | Aluminiumgusslegierung und Verfahren zur Herstellung eines Gussbauteils |
US8956472B2 (en) * | 2008-11-07 | 2015-02-17 | Alcoa Inc. | Corrosion resistant aluminum alloys having high amounts of magnesium and methods of making the same |
DE102009019269A1 (de) * | 2009-04-28 | 2010-11-11 | Audi Ag | Aluminium-Silizium-Druckgusslegierung für dünnwändige Strukturbauteile |
RU2501881C2 (ru) * | 2010-04-08 | 2013-12-20 | Леонид Мордухович Коганов | Способ холодной многопроходной прокатки тонких лент из алюминиевых сплавов |
CN101818289A (zh) * | 2010-05-21 | 2010-09-01 | 江苏亚太轻合金科技股份有限公司 | 一种易切削铝合金 |
JP6474582B2 (ja) * | 2014-10-24 | 2019-02-27 | 日産自動車株式会社 | 成形性に優れたアルミニウム合金板 |
US10030295B1 (en) | 2017-06-29 | 2018-07-24 | Arconic Inc. | 6xxx aluminum alloy sheet products and methods for making the same |
KR101964347B1 (ko) * | 2017-11-06 | 2019-04-01 | 한국생산기술연구원 | 알루미늄 합금 다이캐스팅재 및 이의 제조방법 |
CN111534729B (zh) * | 2020-06-11 | 2022-05-10 | 东北轻合金有限责任公司 | 一种高强铝合金板材横向不平度控制方法 |
KR20220058823A (ko) | 2020-10-30 | 2022-05-10 | 주식회사 태정기공 | 알루미늄 합금 소재를 적용한 고강도 파스너 성형공법 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1529305A (en) * | 1974-11-15 | 1978-10-18 | Alcan Res & Dev | Method of producing metal alloy products |
JPS62207851A (ja) * | 1986-03-10 | 1987-09-12 | Sky Alum Co Ltd | 成形加工用アルミニウム合金圧延板およびその製造方法 |
US5286315A (en) * | 1989-03-30 | 1994-02-15 | Nippon Steel Corporation | Process for preparing rollable metal sheet from quenched solidified thin cast sheet as starting material |
FR2713664B1 (fr) * | 1993-11-17 | 1996-05-24 | Pechiney Rhenalu | Alliage type Al-Si-Mg à ductilité et emboutissabilité améliorées et procédé d'obtention. |
US5571347A (en) * | 1994-04-07 | 1996-11-05 | Northwest Aluminum Company | High strength MG-SI type aluminum alloy |
US5503689A (en) * | 1994-04-08 | 1996-04-02 | Reynolds Metals Company | General purpose aluminum alloy sheet composition, method of making and products therefrom |
US5655593A (en) * | 1995-09-18 | 1997-08-12 | Kaiser Aluminum & Chemical Corp. | Method of manufacturing aluminum alloy sheet |
-
1995
- 1995-12-12 FR FR9514881A patent/FR2742165B1/fr not_active Expired - Lifetime
-
1996
- 1996-12-09 DE DE69617265T patent/DE69617265T2/de not_active Expired - Fee Related
- 1996-12-09 ES ES96941719T patent/ES2163664T3/es not_active Expired - Lifetime
- 1996-12-09 EP EP96941719A patent/EP0866738B1/fr not_active Revoked
- 1996-12-09 JP JP09521789A patent/JP2000501995A/ja not_active Ceased
- 1996-12-09 US US09/077,841 patent/US6193818B1/en not_active Expired - Fee Related
- 1996-12-09 KR KR10-1998-0704332A patent/KR100434808B1/ko not_active IP Right Cessation
- 1996-12-09 AU AU11012/97A patent/AU1101297A/en not_active Abandoned
- 1996-12-09 WO PCT/FR1996/001956 patent/WO1997021508A1/fr not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
P.M. Thomas & P.G. Grocock: "High speed thin strip casting comes of age", Conference Paper at ALUMITECH 94, Atlanta, USA, October 1994 * |
Also Published As
Publication number | Publication date |
---|---|
EP0866738A1 (fr) | 1998-09-30 |
DE69617265T2 (de) | 2002-07-04 |
DE69617265D1 (de) | 2002-01-03 |
AU1101297A (en) | 1997-07-03 |
FR2742165B1 (fr) | 1998-01-30 |
FR2742165A1 (fr) | 1997-06-13 |
KR19990072038A (ko) | 1999-09-27 |
JP2000501995A (ja) | 2000-02-22 |
WO1997021508A1 (fr) | 1997-06-19 |
ES2163664T3 (es) | 2002-02-01 |
US6193818B1 (en) | 2001-02-27 |
KR100434808B1 (ko) | 2004-09-08 |
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