EP0035055B1 - Utilisation d'un mélange de déchets d'aluminium provenant d'alliages d'aluminium de coulée et d'alliages d'aluminium de corroyage pour la fabrication de demi-produits laminés et demi-produits laminés fabriqués à partir de déchets - Google Patents

Utilisation d'un mélange de déchets d'aluminium provenant d'alliages d'aluminium de coulée et d'alliages d'aluminium de corroyage pour la fabrication de demi-produits laminés et demi-produits laminés fabriqués à partir de déchets Download PDF

Info

Publication number
EP0035055B1
EP0035055B1 EP80106968A EP80106968A EP0035055B1 EP 0035055 B1 EP0035055 B1 EP 0035055B1 EP 80106968 A EP80106968 A EP 80106968A EP 80106968 A EP80106968 A EP 80106968A EP 0035055 B1 EP0035055 B1 EP 0035055B1
Authority
EP
European Patent Office
Prior art keywords
aluminum
scrap
alloys
semi
rolled products
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
Application number
EP80106968A
Other languages
German (de)
English (en)
Other versions
EP0035055A1 (fr
Inventor
Wolfgang Prof. Dr. Gruhl
Edgar Dr. Lossack
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6096289&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0035055(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT80106968T priority Critical patent/ATE4128T1/de
Publication of EP0035055A1 publication Critical patent/EP0035055A1/fr
Application granted granted Critical
Publication of EP0035055B1 publication Critical patent/EP0035055B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium

Definitions

  • the invention relates to the use of mixed old scrap for the production of aluminum rolled products by continuous or strip casting of rolled ingots or plates and by subsequent hot and cold rolling.
  • Aluminum scrap comes from used consumer goods or machines that either consist entirely of aluminum alloys or contain significant components from aluminum and its alloys. These consumer goods or machines made of aluminum or their aluminum parts can be produced from aluminum wrought materials by cold or hot molding or from aluminum casting materials by molding. Because of the requirements of the various manufacturing processes, the compositions of wrought aluminum alloys and aluminum casting materials differ fundamentally. Aluminum wrought materials have high alloy contents of Mg, Mn and Zn, while cast aluminum materials are characterized by high Si and often higher Fe and Cu contents.
  • scrap parts are therefore kept separate after their division into kneading and casting materials in order to avoid malfunctions in the forming or casting processes in the new production processes after melting. Sorting the old scrap by type of material must be done before melting.
  • engine blocks and cylinder heads as well as gearbox housings are often made of an AISiCu cast aluminum alloy, attached auxiliary unit housings are made of die-cast zinc, but chassis parts and planking in the body area consist of wrought aluminum alloys of the types AIMgSi or AIMg5.
  • AIMgSi the types of wrought aluminum alloys of the types AIMgSi or AIMg5.
  • the object of the present invention was to find a way of using mixed old scrap from used casting and kneading materials while avoiding the disadvantages mentioned above.
  • the sheets, plates or strips are produced by melting together old scrap from cast aluminum alloys and wrought aluminum alloys without adding primary aluminum to an alloy with contents of 1 to 6% Si, 1 to 3% Mg, 0.5 to 3% Zn, 0 , 5 to 3% Fe, 0.3 to 2% Cu and up to 1% Mn, up to 0.2% ⁇ ⁇ up to 0.5% Cr and up to 0.5% Pb, Bi, Sn, whereby the cast alloy scraps of type AISi, AISiCu, AISiMg with wrought alloy scraps of type AIMn, AIMg, AIMgMn, AtZnMg, AIZnMgCu, AIMgSi and / or AICuMg are melted together in a mass ratio of 1: 1 to 2: 1.
  • the alloy melt is kept at at least 730 ° C. for 1 to 2 hours and then poured off at an inlet temperature of at least 710 ° C.
  • the rolled bars are annealed at 490 ° C for 12 to 24 hours and then hot and cold rolled to the desired final thickness in the usual manner.
  • a preferred application of the process according to the invention is characterized in that the old scrap is processed in a shredder process with downstream magnetic separation.
  • melts from mixed old scrap can advantageously be used without the costly and environmentally unfriendly measures of blending with primary aluminum or chlorination for the production of plates, sheets or strips with good usage properties.
  • the continuous casting structure is given a sheet for subsequent rolling particularly suitable structure.
  • the formability necessary for further production steps for the production of sheet metal parts by cold forming z. B. in roll forming or deep drawing is also favorably affected by this treatment of the old scrap alloy melts.
  • Sheets made from rolled bars produced in this way show an increased sensitivity to corrosion due to the composition, which is unusual for kneading materials. Corrosion protection can be provided in the usual way by painting or coating. It is, however, more advantageous according to the invention if, when rolling out the ingots from such scrap alloy melts, roll cladding of 5-10% on both sides of the rolled semi-finished product is made from an AIZn alloy with 1.5 Zn, made from a semi-finished alloy Al 99.8 or less.
  • Roll ingots were cast from a melt of mixed old scrap in a continuous casting process after the alloy melt had been kept at a temperature of 730 ° C. for two hours.
  • the inlet temperature into the billet ingot molds was set at 710 ° C. during the continuous casting.
  • the rolled bars had the following composition in mass percentages:
  • the rolling bars were subjected to a 12-hour annealing treatment at 490 ° C.
  • the hot rolling was carried out at an initial temperature of 460 ° C.
  • a cladding layer made of Al99.8 with 1.5% on both sides of 10% of the sheet thickness was applied.
  • the plated hot strip was then cold rolled to its final thickness.
  • the strength values and some forming parameters in different states are given in Table 1 together with those of Example 2.
  • Roll ingots were cast from a second melt of mixed old scrap in a continuous casting process after the alloy melt had been kept at a temperature of 730 ° C. for two hours.
  • the inlet temperature into the billet ingot molds was set at 710 ° C. during the continuous casting.
  • the rolling bars were subjected to a 24-hour annealing treatment at 490 ° C.
  • the hot rolling was carried out at an initial temperature of 460 ° C.
  • a cladding layer of A199.8 with 1.5% Zn was applied to both sides of 10% of the sheet thickness.
  • the plated hot strip was then cold rolled to its final thickness.
  • the sheets from both examples showed good formability in the soft as well as in the solution-annealed and quenched state, as can be seen from the hardening exponent n and the Erichsen indentation, and achieved high strength values after hot curing.
  • the rolled semi-finished products produced in this way can be used for numerous fields of application, for example in construction (facades), vehicle construction (cladding, body parts) or for other purposes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Forging (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)

Claims (4)

1. Utilisation de déchets mélangés d'alliages d'aluminium de fusion du type AISi, AISiCu et/ou AISiMg et d'alliages d'aluminium de corroyage du type AIMn, AIMg, AIMgMn, AIZnMg, AIZnMgCu, AIMgSi et/ou AICuMg dans un rapport 1 : 1 à 2 : 1 sans addition d'aluminium de première fusion aux fins de préparation de demi-produits de laminage avec une composition de 1 à 6 % de Si, 1 à 3 % de Mg, 0,5 à 3 % de Zn, 0,5 à 3 % de Fe, 0,3 à 2 % de Cu ainsi que jusqu'à 1 % de Mn, jusqu'à 0,2 % de Ti, jusqu'à 0,5 % de Cr et jusqu'à 0,5 % de Pb, Si, Sn, le reste étant de l'aluminium.
2. Utilisation de déchets mélangés à la préparation de demi-produits de laminage selon la revendication 1, caractérisée en ce qu'on prépare les déchets dans un procédé de déchiquetage suivi par une séparation magnétique.
3. Utilisation de déchets mélangés à la préparation de demi-produits de laminage selon la revendication 1, caractérisée en ce que la masse fondue d'alliage est tout d'abord maintenue pendant 1 à 2 h à ou moins 730 °C, coulée avec une température d'entrée d'au moins 710 °C dans un procédé en coulée continue pour donner des barres de laminage ou des rubans, et en ce que ceux-ci sont recuits pendant 12 à 24 h à 490 °C puis laminés à chaud et à froid de manière habituelle.
4. demi-produits de laminage, préparés en utilisant des déchets mélangés selon la revendication 1, caractérisés en ce qu'ils sont plaqués par laminage des deux côtés avec un alliage AIZn avec 1,5 % de Zn, préparé à partir d'un alliage de demi-produit AI 99,8 ou pur, l'épaisseur des couches de placage l'élevant à 5 à 10 % de celle du demi-produit de laminage.
EP80106968A 1980-03-05 1980-11-12 Utilisation d'un mélange de déchets d'aluminium provenant d'alliages d'aluminium de coulée et d'alliages d'aluminium de corroyage pour la fabrication de demi-produits laminés et demi-produits laminés fabriqués à partir de déchets Expired EP0035055B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106968T ATE4128T1 (de) 1980-03-05 1980-11-12 Verwendung von aus aluminiumgusslegierungen und aluminiumknetlegierungen vermischten altschrotten zur herstellung von walzhalbzeugen und aus schrott hergestellte walzhalbzeuge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3008358 1980-03-05
DE3008358A DE3008358C2 (de) 1980-03-05 1980-03-05 Verwendung von aus Aluminiumgußlegierungen und Aluminiumknetlegierungen vermischten Altschrotten zur Herstllung von Walzhalbzeugen

Publications (2)

Publication Number Publication Date
EP0035055A1 EP0035055A1 (fr) 1981-09-09
EP0035055B1 true EP0035055B1 (fr) 1983-07-13

Family

ID=6096289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106968A Expired EP0035055B1 (fr) 1980-03-05 1980-11-12 Utilisation d'un mélange de déchets d'aluminium provenant d'alliages d'aluminium de coulée et d'alliages d'aluminium de corroyage pour la fabrication de demi-produits laminés et demi-produits laminés fabriqués à partir de déchets

Country Status (6)

Country Link
EP (1) EP0035055B1 (fr)
JP (1) JPS6014828B2 (fr)
AT (1) ATE4128T1 (fr)
CA (1) CA1176084A (fr)
DE (1) DE3008358C2 (fr)
NO (1) NO155399C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069026B1 (fr) * 1981-05-15 1985-08-28 Cegedur Societe De Transformation De L'aluminium Pechiney Méthode pour améliorer la formabilité des alliages du type aluminium-magnésium-silicium
JPS63117606U (fr) * 1987-01-27 1988-07-29
US6004409A (en) * 1997-01-24 1999-12-21 Kaiser Aluminum & Chemical Corporation Production of high quality machinable tolling plate using brazing sheet scrap
US6607615B1 (en) 1997-10-31 2003-08-19 The Furukawa Electric Co., Ltd. Extruded material of aluminum alloy for structural members of automobile body and method of manufacturing the same
JP3403333B2 (ja) * 1998-05-15 2003-05-06 古河電気工業株式会社 自動車用アルミニウム板材とその製造方法
CN102492878A (zh) * 2011-11-15 2012-06-13 徐艳 一种电动自行车用铝合金车架管的生产方法
CN112210700B (zh) * 2020-10-09 2021-09-17 上海华峰铝业股份有限公司 一种Al-Mg-Mn-Si系合金及合金板带材和其制备方法
WO2023169657A1 (fr) * 2022-03-08 2023-09-14 Montanuniversität Leoben Produit semi-fini en alliage d'aluminium corroyé, sa production et son utilisation, et produit fabriqué à partir de celui-ci

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156932A1 (de) * 1971-11-16 1973-05-24 Southwire Co Verfahren zur herstellung von aluminiumlegierungen
DE2647513A1 (de) * 1976-10-21 1978-04-27 Guenther Dipl Ing Fritz Verfahren und geraet zum absondern magnetisierbarer bestandteile aus einem materialgemisch
DE2701452A1 (de) * 1977-01-14 1978-07-20 Glacier Metal Co Ltd Verfahren zur wiedergewinnung wenigstens einer metallkomponente aus mehrschichtigem altmaterial
US4169728A (en) * 1978-02-09 1979-10-02 Mitsubishi Kinzoku Kabushiki Kaisha Corrosion resistant bright aluminum alloy for die-casting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156932A1 (de) * 1971-11-16 1973-05-24 Southwire Co Verfahren zur herstellung von aluminiumlegierungen
DE2647513A1 (de) * 1976-10-21 1978-04-27 Guenther Dipl Ing Fritz Verfahren und geraet zum absondern magnetisierbarer bestandteile aus einem materialgemisch
DE2701452A1 (de) * 1977-01-14 1978-07-20 Glacier Metal Co Ltd Verfahren zur wiedergewinnung wenigstens einer metallkomponente aus mehrschichtigem altmaterial
US4169728A (en) * 1978-02-09 1979-10-02 Mitsubishi Kinzoku Kabushiki Kaisha Corrosion resistant bright aluminum alloy for die-casting

Also Published As

Publication number Publication date
DE3008358C2 (de) 1981-07-09
JPS56139667A (en) 1981-10-31
DE3008358B1 (de) 1980-12-04
NO803675L (no) 1981-09-07
CA1176084A (fr) 1984-10-16
EP0035055A1 (fr) 1981-09-09
JPS6014828B2 (ja) 1985-04-16
NO155399B (no) 1986-12-15
NO155399C (no) 1987-03-25
ATE4128T1 (de) 1983-07-15

Similar Documents

Publication Publication Date Title
EP1682688B1 (fr) Alliage d'aluminium de coulée du type Al-Mg-Si contenant du scandium
DE2901020C2 (fr)
AT502311B1 (de) Hochschadenstolerantes aluminiumlegierungsprodukt im besonderen für luft- und raumfahrtanwendungen
EP2964797B1 (fr) Alliage cuivre-zinc pour une robinetterie sanitaire, et procédé de fabrication de ladite robinetterie
EP3235917A1 (fr) Alliage d'aluminium pour moulage sous pression
DE2551294B2 (de) Verfahren zur Herstellung dispersionsverfestigter Aluminiumlegierungsprodukte
EP0853133B1 (fr) Utilisation d'un alliage d'aluminium pour moulage sous pression
EP0035055B1 (fr) Utilisation d'un mélange de déchets d'aluminium provenant d'alliages d'aluminium de coulée et d'alliages d'aluminium de corroyage pour la fabrication de demi-produits laminés et demi-produits laminés fabriqués à partir de déchets
CH659483A5 (de) Metallische giessform und verfahren zu deren herstellung.
EP0911420A1 (fr) Alliage de coulée à base d'aluminium
DE2242235C3 (de) Superplastische Aluminiumlegierung
DE10043108A1 (de) Metallurgische Bindung von Einsätzen mit mehrlagigen Beschichtungen innerhalb von Metallgußteilen
DE2116549C3 (de) Verfahren zur Herstellung von Kupferlegierungen, die einen hohen Gehalt an Eisen, Kobalt und Phosphor aufweisen, mit hoher elektrischer Leitfähigkeit und gleichzeitig hoher Festigkeit
DE1483228A1 (de) Aluminiumlegierungen sowie aus diesen gefertigte Artikel
DE60215579T2 (de) Aluminiumlegierung geeignet für Bleche und ein Verfahren zu deren Herstellung
DE2647874C2 (fr)
EP0057959B1 (fr) Alliage d'aluminium forgeable
DE3417273C2 (de) Kupfer-Nickel-Legierung für elektrisch leitendes Material für integrierte Schaltkreise
DE3008358B2 (fr)
DE10351666B3 (de) Aluminiumprodukt
DE2909542B2 (de) Verwendung einer niedriglegierten Zink-Knetlegierung
DE2239071A1 (de) Aluminiumgrundlegierung und verfahren zu ihrer herstellung
DE531693C (de) Verfahren zur Herstellung von Aluminium hoher elektrischer Leitfaehigkeit und grosser Festigkeit
DE10018504A1 (de) Verwendung einer aushärtbaren Kupferlegierung für Kokillen
WO2023066892A1 (fr) Alliage d'aluminium et bande d'aluminium pour la fabrication de couvercles de boîtes, et procédé de fabrication associé

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

Designated state(s): AT BE CH FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19810831

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 4128

Country of ref document: AT

Date of ref document: 19830715

Kind code of ref document: T

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SCHWEIZERISCHE ALUMINIUM AG

Effective date: 19840411

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19870122

NLR2 Nl: decision of opposition
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941024

Year of fee payment: 15

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

Ref country code: FR

Payment date: 19941117

Year of fee payment: 15

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

Ref country code: AT

Payment date: 19941122

Year of fee payment: 15

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

Ref country code: SE

Payment date: 19941123

Year of fee payment: 15

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

Ref country code: NL

Payment date: 19941130

Year of fee payment: 15

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

Ref country code: LU

Payment date: 19941201

Year of fee payment: 15

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

Ref country code: BE

Payment date: 19941206

Year of fee payment: 15

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

Ref country code: CH

Payment date: 19941219

Year of fee payment: 15

EAL Se: european patent in force in sweden

Ref document number: 80106968.3

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

Ref country code: LU

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

Effective date: 19951112

Ref country code: GB

Effective date: 19951112

Ref country code: AT

Effective date: 19951112

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

Ref country code: SE

Effective date: 19951113

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

Ref country code: LI

Effective date: 19951130

Ref country code: CH

Effective date: 19951130

Ref country code: BE

Effective date: 19951130

BERE Be: lapsed

Owner name: VEREINIGTE ALUMINIUM-WERKE A.G.

Effective date: 19951130

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

Ref country code: NL

Effective date: 19960601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951112

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Effective date: 19960731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960601

EUG Se: european patent has lapsed

Ref document number: 80106968.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST