EP0140827A1 - Procédé pour la fabrication de produits de laminage en aluminium à grain fin - Google Patents

Procédé pour la fabrication de produits de laminage en aluminium à grain fin Download PDF

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Publication number
EP0140827A1
EP0140827A1 EP84810363A EP84810363A EP0140827A1 EP 0140827 A1 EP0140827 A1 EP 0140827A1 EP 84810363 A EP84810363 A EP 84810363A EP 84810363 A EP84810363 A EP 84810363A EP 0140827 A1 EP0140827 A1 EP 0140827A1
Authority
EP
European Patent Office
Prior art keywords
annealing
iron
manganese
aluminum
rolled
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
EP84810363A
Other languages
German (de)
English (en)
Other versions
EP0140827B1 (fr
Inventor
Peter Furrer
Jürgen Timm
Frank Wehner
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
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 Alusuisse Holdings AG, Schweizerische Aluminium AG filed Critical Alusuisse Holdings AG
Priority to AT84810363T priority Critical patent/ATE29742T1/de
Publication of EP0140827A1 publication Critical patent/EP0140827A1/fr
Application granted granted Critical
Publication of EP0140827B1 publication Critical patent/EP0140827B1/fr
Expired legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a process for the production of aluminum rolled products with iron as the predominant alloying element, which after final annealing, after annealing at at least 250 ° C., has a grain size of less than 10 ⁇ m.
  • Gram size means the average diameter of all grains present.
  • Such small grains in the annealed condition are, among other things, a good prerequisite for high strength or yield strength with good ductility at the same time; this applies to all thickness ranges from the mm sheet to the film of a few ⁇ m thickness.
  • the invention is therefore based on the object of providing a process based on low-alloy aluminum-iron alloys which, using the semi-continuous ingot continuous casting plants which are in widespread use, permits the production of rolled products in which, with a final roll thickness, after annealing above 250 ° C, the grains are smaller than 10 ⁇ m.
  • the object is achieved in that an alloy consisting of 0.8 to 1.5 wt.% Iron, each up to 0.5% silicon and manganese, the sum of silicon and manganese being between 0.2 and 0.8%, and other components up to 0.3% each, up to 0.8% in total, the rest aluminum, is cast at a solidification rate of 2.5 to 25 cm / min, after hot rolling at a cooling rate of at least 0.5 K / sec to temperatures below 120 ° C and then up to a Thickness reduction of at least 75% is cold rolled without intermediate annealing, and that the annealing temperature at final thickness does not exceed 380 ° C.
  • the specified method is less suitable for solidification speeds outside the defined range.
  • the ratio of deformability to strength can be increased as the final annealing temperature increases. It was found for the alloy range according to the invention that the final annealing temperature must not exceed 380 ° C. in order to avoid grains of more than 10 pm with certainty.
  • the steps following hot rolling are also critical for the production of fine grains.
  • the tests showed that, in order not to endanger the formation of fine grains, the cooling rate in the area between the hot rolling end temperature and about 120 ° C must not fall below 0.5 K / sec; the cooling rate below 120 ° C is insignificant in this regard.
  • Such cooling rates can be achieved when the strip passes through a water tank or when the strip is cooled by means of intensive air flow.
  • the first annealing after hot rolling, a final annealing or intermediate annealing, if necessary, must not take place at a thickness which is more than a quarter of the final hot rolling thickness.
  • the weight fraction of iron must be higher than 0.8%; otherwise grains of more than 10 ⁇ m in size are formed after the final annealing. On the other hand, if there is more than 1.5% iron, the eutectic composition is approached; this harbors the risk of forming coarse precipitates during casting, which would seriously impair the deformability.
  • ingots of both alloys with a cross section of 412 x 1000 mm are cast at a speed of 10 cm / min; the rate of solidification was 7 cm / min.
  • the ingots were milled over, preheated to 540 ° C and hot-rolled to 8 mm.
  • the hot rolled strip passed through a water box and was cold rolled to 0.7 mm.
  • a 3-hour annealing was carried out at 350 ° C; then cold rolling to 0.1 mm. After 20 hours of final annealing at 320 ° C the following values were achieved: (the mechanical values measured in the rolling direction)
  • Example 2 Up to 0.1 mm, the two alloys were processed in the same way as in Example 1. It was then cold rolled to 13 ⁇ m and finally annealed at 280 ° C.
  • the manufacturing procedure corresponds in one case (AE) to that of Example 1, in the other case (AK) it was changed so that the hot rolled strip was not passed through a water box, but was immediately rewound.
  • Example 1 Up to 0.1 mm the above-mentioned alloy was processed as in Example 1. The 20-hour final annealing was carried out in one variant (GE) at 320 ° C and in another variant (GK) at 400 ° C.
  • Example 5 Influence of the degree of cold rolling between the hot rolling thickness and the thickness during the first annealing
  • Alloy E 1 was processed as in Example 1 to and with the water cooling of the hot-rolled strip.
  • the strip was further cold-rolled to 2.8 mm, annealed at 360 ° C for 3 hours, further rolled to 0.8 mm, annealed at 350 ° C for 3 hours, finish-rolled to 0.1 mm and finally, as in Example 1, annealed at 320 ° C for 20 hours ( KW).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Cereal-Derived Products (AREA)
  • Forging (AREA)
EP84810363A 1983-08-23 1984-07-24 Procédé pour la fabrication de produits de laminage en aluminium à grain fin Expired EP0140827B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810363T ATE29742T1 (de) 1983-08-23 1984-07-24 Verfahren zur herstellung feinkoerniger aluminiumwalzprodukte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4584/83 1983-08-23
CH4584/83A CH654027A5 (de) 1983-08-23 1983-08-23 Verfahren zur herstellung feinkoerniger aluminiumwalzprodukte.

Publications (2)

Publication Number Publication Date
EP0140827A1 true EP0140827A1 (fr) 1985-05-08
EP0140827B1 EP0140827B1 (fr) 1987-09-16

Family

ID=4278817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810363A Expired EP0140827B1 (fr) 1983-08-23 1984-07-24 Procédé pour la fabrication de produits de laminage en aluminium à grain fin

Country Status (6)

Country Link
US (1) US4483719A (fr)
EP (1) EP0140827B1 (fr)
AT (1) ATE29742T1 (fr)
CH (1) CH654027A5 (fr)
DE (2) DE3330814C2 (fr)
NO (1) NO162081C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394818A1 (fr) * 1989-04-28 1990-10-31 VAW Aluminium AG Produit laminé d'aluminium et procédé pour sa fabrication
EP0394816A1 (fr) * 1989-04-22 1990-10-31 VAW Aluminium AG Demi-produit laminé en aluminium et son procédé de fabrication
NL1003401C2 (nl) * 1996-06-24 1998-01-07 Hoogovens Aluminium Bv Aluminiumplaat met een goede vervormbaarheid en een werkwijze voor het vervaardigen daarvan.
CN102641889A (zh) * 2012-04-06 2012-08-22 东北大学 一种钎焊复合铝箔的制备方法
CN102836875A (zh) * 2012-08-29 2012-12-26 三门峡天一铝业有限公司 汽车热交换器用铝板、铝箔、铝带连续复合轧制工艺

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8800082D0 (en) * 1988-01-05 1988-02-10 Alcan Int Ltd Battery
GB8906468D0 (en) * 1989-03-21 1989-05-04 Alcan Int Ltd Metal treatment
US5141820A (en) * 1991-01-04 1992-08-25 Showa Aluminum Corporation Aluminum pipe for use in forming bulged portions thereon and process for producing same
US5380379A (en) * 1993-08-18 1995-01-10 Alcoa Aluminio Do Nordeste S.A. Aluminum foil product and manufacturing method
DE4420533A1 (de) * 1994-06-14 1995-12-21 Salzburger Aluminium Ag Verfahren zur Herstellung von Formgußteilen aus Aluminiumlegierungen
US5725695A (en) * 1996-03-26 1998-03-10 Reynolds Metals Company Method of making aluminum alloy foil and product therefrom
DE29923957U1 (de) * 1999-08-05 2001-07-05 Vaw Ver Aluminium Werke Ag Aluminiumlegierung
DE19948820B4 (de) * 1999-08-05 2004-03-04 Vaw Aluminium Ag Wärmeabschirmblech bestehend aus einer Aluminiumlegierung
JP6496490B2 (ja) * 2014-04-16 2019-04-03 三菱アルミニウム株式会社 アルミニウム合金軟質箔およびその製造方法
EP3167089B1 (fr) * 2014-07-09 2017-12-06 Hydro Aluminium Rolled Products GmbH L'utilisation d'un alliage d'aluminium, en particulier un aluminium produit plat de cet alliage pour un aluminium-polymère composite
EP4015658A1 (fr) * 2020-12-18 2022-06-22 Speira GmbH Feuille d'aluminium à propriétés de barrière améliorées

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691972A (en) * 1970-07-09 1972-09-19 Reynolds Metals Co Aluminous metal articles and method
US3827917A (en) * 1969-06-18 1974-08-06 Kaiser Aluminium Chem Corp Aluminum electrical conductor and process for making the same
US3960607A (en) * 1974-03-08 1976-06-01 National Steel Corporation Novel aluminum alloy, continuously cast aluminum alloy shapes, method of preparing semirigid container stock therefrom, and container stock thus prepared

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208504B (de) * 1961-08-10 1966-01-05 Metall Werke Merkur G M B H Verfahren zur Herstellung hochglanzfaehiger Aluminiumbleche bzw. -baender
US3304208A (en) * 1964-08-03 1967-02-14 Revere Copper & Brass Inc Production of fine grain aluminum alloy sheet
US3397044A (en) * 1967-08-11 1968-08-13 Reynolds Metals Co Aluminum-iron articles and alloys
DE2423597C3 (de) * 1973-05-17 1983-11-03 Alcan Research and Development Ltd., Montreal, Quebec Verfahren zur Herstellung dispersionsverfestigter Aluminlegierungsbleche und -folien mit gleichmäßig verteilten feinen intermetallischen Teilchen
US3938991A (en) * 1974-07-15 1976-02-17 Swiss Aluminium Limited Refining recrystallized grain size in aluminum alloys
GB1524354A (en) * 1974-11-15 1978-09-13 Alcan Res & Dev Method of producing aluminium alloy sheet products
AR206656A1 (es) * 1974-11-15 1976-08-06 Alcan Res & Dev Metodo para producir un producto en hoja de aleacion de aluminio a partir de una aleacion de al-fe
US4028141A (en) * 1975-03-12 1977-06-07 Southwire Company Aluminum iron silicon alloy
US4138275A (en) * 1976-08-10 1979-02-06 Sumitomo Electric Industries, Ltd. Method of manufacturing aluminum alloy for electric conductor
JPS53144813A (en) * 1977-05-24 1978-12-16 Sumitomo Electric Ind Ltd Manufacture of electroconductive aluminum alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827917A (en) * 1969-06-18 1974-08-06 Kaiser Aluminium Chem Corp Aluminum electrical conductor and process for making the same
US3691972A (en) * 1970-07-09 1972-09-19 Reynolds Metals Co Aluminous metal articles and method
US3960607A (en) * 1974-03-08 1976-06-01 National Steel Corporation Novel aluminum alloy, continuously cast aluminum alloy shapes, method of preparing semirigid container stock therefrom, and container stock thus prepared

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394816A1 (fr) * 1989-04-22 1990-10-31 VAW Aluminium AG Demi-produit laminé en aluminium et son procédé de fabrication
EP0394818A1 (fr) * 1989-04-28 1990-10-31 VAW Aluminium AG Produit laminé d'aluminium et procédé pour sa fabrication
NL1003401C2 (nl) * 1996-06-24 1998-01-07 Hoogovens Aluminium Bv Aluminiumplaat met een goede vervormbaarheid en een werkwijze voor het vervaardigen daarvan.
CN102641889A (zh) * 2012-04-06 2012-08-22 东北大学 一种钎焊复合铝箔的制备方法
CN102641889B (zh) * 2012-04-06 2015-11-04 东北大学 一种钎焊复合铝箔的制备方法
CN102836875A (zh) * 2012-08-29 2012-12-26 三门峡天一铝业有限公司 汽车热交换器用铝板、铝箔、铝带连续复合轧制工艺
CN102836875B (zh) * 2012-08-29 2015-09-02 三门峡天一铝业有限公司 汽车热交换器用铝板、铝箔、铝带连续复合轧制工艺

Also Published As

Publication number Publication date
DE3330814A1 (de) 1985-03-21
EP0140827B1 (fr) 1987-09-16
CH654027A5 (de) 1986-01-31
NO843337L (no) 1985-02-25
NO162081B (no) 1989-07-24
ATE29742T1 (de) 1987-10-15
NO162081C (no) 1989-11-01
DE3466247D1 (en) 1987-10-22
DE3330814C2 (de) 1986-10-02
US4483719A (en) 1984-11-20

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