EP1443123B1 - Alliage d'aluminium pour la production de bande pour couvercles de boîtes - Google Patents

Alliage d'aluminium pour la production de bande pour couvercles de boîtes Download PDF

Info

Publication number
EP1443123B1
EP1443123B1 EP20030001760 EP03001760A EP1443123B1 EP 1443123 B1 EP1443123 B1 EP 1443123B1 EP 20030001760 EP20030001760 EP 20030001760 EP 03001760 A EP03001760 A EP 03001760A EP 1443123 B1 EP1443123 B1 EP 1443123B1
Authority
EP
European Patent Office
Prior art keywords
cans
hot
strip
aluminum alloy
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.)
Expired - Lifetime
Application number
EP20030001760
Other languages
German (de)
English (en)
Other versions
EP1443123A1 (fr
Inventor
Lothar Dr.-Ing. Löchte
Kai-Friedrich Dr. Karhausen
Pascal Dr. Wagner
Lutz Dr. Löffler
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.)
Hydro Aluminium Deutschland GmbH
Original Assignee
Hydro Aluminium Deutschland GmbH
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 Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Priority to EP20030001760 priority Critical patent/EP1443123B1/fr
Publication of EP1443123A1 publication Critical patent/EP1443123A1/fr
Application granted granted Critical
Publication of EP1443123B1 publication Critical patent/EP1443123B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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
    • C22F1/047—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 with magnesium as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/20—Metallic substrate based on light metals
    • B05D2202/25—Metallic substrate based on light metals based on Al
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys

Definitions

  • the invention relates to a method for producing cover strip and a cover strip for aluminum alloy cans.
  • Such alloys are known in the art in a variety of configurations. For example, it is known to make a lid tape for aluminum alloy cans AA 5082 or AA 5812.
  • the requirements for a cover tape for cans, especially beverage cans is mainly to ensure a high internal pressure stability.
  • a high internal pressure stability is necessary in order to withstand the internal pressure approximately at a pasteurization of the food in the sealed can or the resulting from the carbon dioxide content of internal pressure of a canned product, usually a beverage.
  • Such an aluminum alloy for the production of cover tape for cans for example, from US 5,469,912 known.
  • the yield strength R p0.2 of the cover strip at 45 ° to the rolling direction is in particular the yield strength R p0.2 of the cover strip at 45 ° to the rolling direction. This is in generally significantly lower than the yield strength below 0 ° or 90 ° to the rolling direction.
  • the yield strength R p0.2 of the cover strip should assume a maximum value at 45 ° to the rolling direction, even after the paint has been baked on.
  • the present invention has for its object to propose a method for producing cover tape for cans with an improved microstructure and a corresponding lid tape for cans.
  • the aluminum alloy for the production of cover tape for cans has the following proportions by weight in parts by weight: 0.05% ⁇ Si ⁇ 0.2% 0.2% ⁇ Fe ⁇ 0.4% 0.05% ⁇ Cu ⁇ 0.15% 0.4% ⁇ Mn ⁇ 0.8% 4.7% ⁇ mg ⁇ 5.4% 0.0% ⁇ Cr ⁇ 0.1% 0.0% ⁇ Zn ⁇ 0.25% 0.0% ⁇ Ti ⁇ 0.15% Ca ⁇ 4 ppm N / A ⁇ 4 ppm other in total max. 0.15%, individually Max. 0.05%, balance Al.
  • the aluminum alloy ensures improved internal pressure stability with regard to the aforementioned aspects by combining two strategies.
  • the first strategy is to achieve high internal pressure stability of the lid by increasing the yield strength of the painted material to increase the overall level of strength.
  • the second strategy is to influence the recovery behavior of the painted material at the same yield strength by reducing the drop in internal pressure stability as time passes after the lid is made.
  • the described first teaching of the invention adopts both strategies by adopting the essential alloying elements Mn and Mg be coordinated. Therefore, Mg essentially increases the strength of the material while at the same time improving the formability and thus implements the first strategy. With the increased addition of Mg, however, an increased recovery and thus an increased aging effect is accompanied at the same time. To compensate for this according to the second strategy, strength enhancing Mn and small amounts of Cu are also added, both of which dampen recovery.
  • the upper limits of Fe and Si are necessary to ensure the formability of the covers made from the aluminum alloy of the present invention.
  • the lower limits of Fe and Si ensure the possibility of using recycled material for the aluminum alloy according to the first teaching of the invention.
  • the yield strength R p0.2 at 45 ° to the rolling direction after cold rolling can be significantly increased, especially after baking of the paint.
  • the softening is significantly reduced as desired.
  • the sum of the alloying proportions Mn, Fe and Si does not exceed 1.25 weight percent.
  • the starting material used is the aluminum alloy described. From the aluminum alloy, an ingot is poured, homogenized, hot rolled and then cold rolled on a single or réellegerüstigen cold roll. The cold-rolled strip is painted and dried in a continuous oven.
  • the method for the production of cover strip according to the teachings of the invention can be implemented cost-effectively from the plant side and is simultaneously adapted to the aluminum alloy according to the invention.
  • the addition of Mg and Mn is adjusted so that the introduced in the process for the production of cover tape for cans according to the teachings of the invention solidification is little lowered by Entfest Trentsvortician.
  • This thermal stabilization against softening is primarily caused by Mn being in solution in the aluminum matrix.
  • Particularly important for the coordination of the method for producing cover tape for cans according to the teachings of the invention with the aluminum alloy used is, on the one hand, cold rolling on a single or two-stand cold roll On the other hand, avoiding deformation inhomogeneities in cold rolling through optimal processing parameters in upstream operations.
  • the deformation inhomogeneities occurring during cold rolling can preferably be minimized by homogenizing the billet after casting at 480 ° C. to 530 ° C., reversibly hot rolling to a thickness of 30-50 mm and then hot rolling on a multi-stand, in particular 3 or 4-stand tandem relay.
  • the cast iron stresses of the billet are first degraded.
  • the billet is prepared for hot rolling in the multi-stand tandem scale. Due to the multi-stand tandem scale, maximum forming levels can be achieved during hot rolling so that coarse precipitation phases are optimally broken up.
  • a hot strip outlet temperature of more than 300 ° C after tandem hot rolling is necessary to achieve complete softening of the hot strip. This is accompanied by the setting of a crystallographic cube texture, which in turn produces a high yield strength below 45 ° in the cold-rolled and painted strip.
  • the cover band is finally painted with a polyvinyl chloride (PVC) -free varnish, then the Environmental compatibility and recyclability of the cover strip are further increased.
  • PVC polyvinyl chloride
  • a lid tape for cans which is produced by the method according to the invention.
  • a lid tape for cans produced by the method according to the invention has an improved internal pressure stability even after the paint has been baked on.
  • the cover strip is produced from a hot strip with a fine-grained microstructure, the microstructure having a mean grain size of less than or equal to 15 ⁇ m, an increase in the yield strength R p0.2 of the cover strip at 45 ° to the rolling direction due to homogeneous deformation while largely avoiding deformation inhomogeneities be achieved during cold rolling, so that the cover tape for cans is also suitable for painting with PVC-free paints.
  • the single figure shows schematically a manufacturing path for realizing an embodiment of a method for producing cover tape for cans according to the teachings of the invention.
  • the manufacturing path shown in the single figure detects in a first step the ingot casting 1 of an aluminum alloy according to the teachings of the invention.
  • the billets cast in the DC process are then homogenized in a homogenization stage 2 and hot rolled on a tandem mill 3.
  • the ingot can first be reversibly rolled to a thickness of 30-50 mm on a reversing stand and the hot rolling then continued on a multi-stand, in particular 3- or 4-stand tandem scale.
  • the cold rolling takes place on a one- or two-stand cold roll 4. This cold rolling essentially determines the strength of the material by the introduced cold deformation.
  • the hot strip has an optimal crystallographic texture.
  • the optimized texture of the cover strip is guaranteed, so that while avoiding deformation inhomogeneities in cold rolling an increased yield strength, in particular at 45 ° to the rolling direction can be achieved.
  • the material heats up again by introduced Umformeben, resulting in a softening in the wound state of the tape.
  • the tape is painted on a continuous furnace painting line 5 and dried, the material undergoes a further heat treatment, which in turn leads to a softening or recovery.
  • the softening during cold rolling and during the drying of the lacquer does not affect the applicability of the cover strip for cans. This is especially true when using elevated bake temperatures, which are required when using PVC-free paints.

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)
  • Metal Rolling (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (6)

  1. Procédé de fabrication de feuillard pour couvercles de canettes, dans lequel une barre est coulée à partir d'un alliage d'aluminium, la barre obtenue après la coulée est homogénéisée et laminée à chaud à une température de 480 °C à 530 °C, le feuillard à chaud est ensuite laminé à froid sur un laminoir à froid monocage ou multicage, le feuillard laminé à froid est verni et séché dans un four à passage continu,
    caractérisé en ce que l'on utilise un alliage d'aluminium présentant les composants d'alliage en parts de poids suivants : 0,05% ≤ Si ≤ 0,2 % 0,2 % ≤ Fe ≤ 0,4 % 0,05 % ≤ Cu ≤ 0,15 % 0,4 % ≤ Mn ≤ 0,8 % 4,7 % ≤ Mg ≤ 5,4 % 0,0 % ≤ Cr ≤ 0,1 % 0,0 % ≤ Zn ≤ 0,25 % 0,0 % ≤ Ti ≤ 0,15 % Ca ≤ 4 ppm Na ≤ 4 ppm
    autres donnant la somme maximale de 0,15 %, individuellement au maximum 0,05 %, le reste étant de l'Al,
    en ce que la barre est laminée à chaud moyennant un laminage réversible pour obtenir une épaisseur de 30 à 50 mm et en ce que le laminage à chaud est ensuite poursuivi dans un groupe de montants tandem multicage.
  2. Procédé selon la revendication 1,
    caractérisé en ce que l'alliage d'aluminium présente l'élément B avec une part d'alliage de B ≤ 10 ppm.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que le rapport entre les parts d'alliage des éléments Mg et Mn est supérieur ou égal à 7 et inférieur ou égal à 11.
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que la somme des parts d'alliage des éléments Mn, Fe et Si ne dépasse pas 1,25 en pour cent en poids.
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce qu'après le laminage à chaud, la température de sortie du feuillard à chaud est supérieure à 300 °C.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que le feuillard pour couvercles est verni avec un vernis exempt de poly(chlorure de vinyle) (PVC).
EP20030001760 2003-01-28 2003-01-28 Alliage d'aluminium pour la production de bande pour couvercles de boîtes Expired - Lifetime EP1443123B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030001760 EP1443123B1 (fr) 2003-01-28 2003-01-28 Alliage d'aluminium pour la production de bande pour couvercles de boîtes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030001760 EP1443123B1 (fr) 2003-01-28 2003-01-28 Alliage d'aluminium pour la production de bande pour couvercles de boîtes

Publications (2)

Publication Number Publication Date
EP1443123A1 EP1443123A1 (fr) 2004-08-04
EP1443123B1 true EP1443123B1 (fr) 2011-07-20

Family

ID=32605249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030001760 Expired - Lifetime EP1443123B1 (fr) 2003-01-28 2003-01-28 Alliage d'aluminium pour la production de bande pour couvercles de boîtes

Country Status (1)

Country Link
EP (1) EP1443123B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5379463B2 (ja) * 2008-12-16 2013-12-25 古河スカイ株式会社 Ｌｎｇ球形タンク用高強度アルミニウム合金の製造方法
CN106906389A (zh) * 2017-02-28 2017-06-30 广东润盛科技材料有限公司 铝镁合金飞机壳体及其制备方法
JP2018199866A (ja) * 2018-08-24 2018-12-20 株式会社神戸製鋼所 樹脂被覆缶胴用アルミニウム合金板

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2761025B2 (ja) * 1989-03-27 1998-06-04 北海製罐株式会社 アルミニウム合金製缶蓋及び飲料用缶容器
US5240522A (en) * 1991-03-29 1993-08-31 Sumitomo Light Metal Industries, Ltd. Method of producing hardened aluminum alloy sheets having superior thermal stability
US5469912A (en) * 1993-02-22 1995-11-28 Golden Aluminum Company Process for producing aluminum alloy sheet product
JPH09268341A (ja) * 1996-04-01 1997-10-14 Furukawa Electric Co Ltd:The スコア部の耐応力腐食割れ性に優れた缶蓋材用Ａｌ合金焼付塗装板とその製造方法
JP3850542B2 (ja) * 1998-02-19 2006-11-29 株式会社神戸製鋼所 カーリング性及び巻き締め性が優れたアルミニウム合金板及びその製造方法
JP2000008133A (ja) * 1998-06-23 2000-01-11 Furukawa Electric Co Ltd:The 耐落下強度に優れる缶蓋用アルミニウム合金板およびその製造方法

Also Published As

Publication number Publication date
EP1443123A1 (fr) 2004-08-04

Similar Documents

Publication Publication Date Title
EP2770071B9 (fr) Alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles, procédé de fabrication d'une bande d'alliage en aluminium à partir de cet alliage en aluminium ainsi que la bande d'alliage en aluminium et utilisations de celui-ci
EP2270249B1 (fr) Bande AIMgSi pour applications ayant des exigences de déformation élevées
DE2362658C3 (de) Verfahren zum Herstellen von Stahlblech mit hervorragender Preßverformbarkeit
EP2570509B1 (fr) Procédé de fabrication pour une bande d'aluminium AlMgSi
EP3974554A1 (fr) Produit plan en acier ayant une bonne résistance au vieillissement et son procédé de fabrication
DE102004013497B4 (de) Al-Mg-Si-Legierungsblech, das ausgezeichnete Oberflächeneigenschaften aufweist und Herstellungsverfahren dafür
CH641495A5 (de) Verfahren zur herstellung eines zipfelarmen bandes aus aluminium oder einer aluminiumlegierung.
EP3583238B1 (fr) Procédé de fabrication de tôles d'acier, tôle d'acier et son utilisation
WO2002083967A1 (fr) Procede de realisation de feuillards ou de toles al-mn
DE69402496T2 (de) Verfahren zur Herstellung von Blech aus einer Al-Legierung, die eine verzögerte natürliche Alterung, eine ausgezeichnete Verformbarkeit und Einbrennhärtbarkeit aufweist
DE102010000292B4 (de) Metallband hergestellt aus Stahl mit unterschiedlichen mechanischen Eigenschaften
DE69901341T2 (de) Aluminium-legierung für aerosoldose
DE1813192B2 (de) Verwendung von kaltverfestigten Blechen aus einer Aluminium Magnesium Mangan Legierung fur leicht zu öffnende Dosendeckel
DE69028426T2 (de) Verfahren zur Herstellung von kalt gewalzten austenitischen rostfreien Stahlblechen und Stahlbändern
DE69032587T2 (de) Verfahren zur Herstellung kaltgewalzter Bänder oder Bleche aus austenitischem nichtrostendem Stahl
EP1443123B1 (fr) Alliage d'aluminium pour la production de bande pour couvercles de boîtes
DE69903135T2 (de) Verfahren zur herstellung von hochfester aluminiumfolie
WO2018149961A1 (fr) Procédé de fabrication de tôles d'acier, tôle d'acier et son utilisation
EP2243848B1 (fr) Bande d'aluminium riche en manganèse et en magnésium
DE4203442C2 (de) Verfahren zum Herstellen einer hochfesten gezogenen und abgestreckten Dose aus Stahlblech
EP0394816A1 (fr) Demi-produit laminé en aluminium et son procédé de fabrication
EP1466992A1 (fr) Demi-produit laminé d'un alliage d'aluminium
EP3690076A1 (fr) Procédé de fabrication d'une tôle ou d'une bande d'un alliage d'aluminium ainsi que tôle, bande ou pièce moulée fabriqués selon ledit procédé
EP3178952B1 (fr) Alliage d'aluminium à haute ductilité, semi-rigide destiné à la fabrication de demi-produits ou de pièces pour véhicules automobiles
EP1411140B1 (fr) Procédé de fabrication de tôles ou de bandes d'acier laminées à froid ayant une excellente formabilité

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

17P Request for examination filed

Effective date: 20050203

AKX Designation fees paid

Designated state(s): DE

17Q First examination report despatched

Effective date: 20061207

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HYDRO ALUMINIUM DEUTSCHLAND GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50313820

Country of ref document: DE

Effective date: 20110908

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120123

Year of fee payment: 10

26N No opposition filed

Effective date: 20120423

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50313820

Country of ref document: DE

Effective date: 20120423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130801

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50313820

Country of ref document: DE

Effective date: 20130801