EP0037132A1 - Procédé de fabrication de produits semi-finis et de produits finis en un alliage Al-Mn-Si - Google Patents

Procédé de fabrication de produits semi-finis et de produits finis en un alliage Al-Mn-Si Download PDF

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Publication number
EP0037132A1
EP0037132A1 EP81200236A EP81200236A EP0037132A1 EP 0037132 A1 EP0037132 A1 EP 0037132A1 EP 81200236 A EP81200236 A EP 81200236A EP 81200236 A EP81200236 A EP 81200236A EP 0037132 A1 EP0037132 A1 EP 0037132A1
Authority
EP
European Patent Office
Prior art keywords
finished
annealing
tensile strength
electrical conductivity
semi
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.)
Withdrawn
Application number
EP81200236A
Other languages
German (de)
English (en)
Inventor
Heinz Jürgen Dr. Althoff
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 Deutsche Metallwerke AG
Original Assignee
Vereinigte Deutsche Metallwerke AG
Ver Deutsche Metallwerke 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 Vereinigte Deutsche Metallwerke AG, Ver Deutsche Metallwerke AG filed Critical Vereinigte Deutsche Metallwerke AG
Publication of EP0037132A1 publication Critical patent/EP0037132A1/fr
Withdrawn legal-status Critical Current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
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent

Definitions

  • the invention relates to a process for the production of semi-finished and finished parts made of an AlMnSi alloy, which have a tensile strength of at least 120 N / mm 2 and an electrical conductivity of at least 29 m / ⁇ mm 2 at room temperature and in which these minimum values in Range of application reversibly maintained up to 450 ° C.
  • E-Al and E-Al-Mg-Si standard materials are used in Germany for guiding purposes.
  • E-Al has a very high electrical conductivity of at least 34.5 m / ⁇ mm 2 for aluminum materials, but on the other hand only a very low strength. Due to strong work hardening, tensile strength values of approx. 180 N / mm 2 (in state F 17 according to DIN 40 501) can be achieved with this material, but this strength can only really be used in a temperature range up to a maximum of 80 ° C, since at higher Depending on the duration of exposure, softening must be expected until it is completely soft. For this For this reason, the area of application for E-Al for overhead lines is limited, for example, to a maximum temperature of 80 ° C.
  • an application temperature limit for a material also means that care must be taken during the manufacture and further processing of objects made therefrom that the temperature limit is not exceeded. For example, for materials with a limit temperature of 80 ° C, it is not possible to apply plastic insulation, the processing of which requires higher temperatures. Furthermore, it is not possible to enamel or solder such materials.
  • the semi-finished or finished parts produced by this process have the advantage that they are in a thermodynamically stable state and that the set strength and conductivity values are therefore reversible with certainty even at a temperature stress above 80 ° C at least up to the temperature of the recrystallization annealing used remain.
  • the method has the further advantage that it allows the setting of optimal conductivity values or optimal strength values.
  • the recrystallization annealing is preferably carried out at 300 ° C. or just above, while for the setting of optimal strength values, the recrystallization annealing is preferably carried out at 450 ° C. or just below.
  • the tensile strength drops to the specified minimum value of 120 N / mm 2 , while the electrical conductivity increases to 30.7 m / ⁇ mm 2 .
  • the tensile strength increases approximately steadily to over 160 N / mm 2 , while the electrical conductivity also drops almost continuously to below 28 m / ⁇ mm 2 .
  • the temperature range which can be used under the given conditions for the recrystallization annealing is therefore expediently limited to 450 ° C. in order to avoid an excessive decrease in the electrical conductivity.
  • the diagram also shows that the material can of course also be used without prior recrystallization if a particularly high tensile strength is important and the room temperature is certainly not significantly exceeded during use. To this extent, however, the material would be subject to the same restrictive conditions as the known materials mentioned at the beginning.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Conductive Materials (AREA)
EP81200236A 1980-03-28 1981-02-26 Procédé de fabrication de produits semi-finis et de produits finis en un alliage Al-Mn-Si Withdrawn EP0037132A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012009 1980-03-28
DE19803012009 DE3012009C2 (de) 1980-03-28 1980-03-28 Verwendung einer AlMnSi-Legierung

Publications (1)

Publication Number Publication Date
EP0037132A1 true EP0037132A1 (fr) 1981-10-07

Family

ID=6098600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200236A Withdrawn EP0037132A1 (fr) 1980-03-28 1981-02-26 Procédé de fabrication de produits semi-finis et de produits finis en un alliage Al-Mn-Si

Country Status (2)

Country Link
EP (1) EP0037132A1 (fr)
DE (1) DE3012009C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018946A1 (fr) * 1995-11-21 1997-05-29 Alcan International Limited Echangeur de chaleur
GB2321255A (en) * 1995-11-21 1998-07-22 Alcan Int Ltd Heat exchanger
EP1323839A1 (fr) * 1999-11-17 2003-07-02 Corus Aluminium Walzprodukte GmbH Alliage de brasage d'aluminium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR655927A (fr) * 1927-11-02 1929-04-25 Alliage de fonderie, de laminage, d'estampage
US1873470A (en) * 1929-04-13 1932-08-23 Bell Telephone Labor Inc Cable armor
FR2346822A1 (fr) * 1976-03-31 1977-10-28 Trefimetaux Amelioration des procedes de recuit rapide de conducteurs electriques en alliage a base d'aluminium
DE1817243B2 (de) * 1967-12-29 1977-12-08 Schweizerische Aluminium Ag, Chippis (Schweiz) Verfahren zur herstellung von feinkoernigen baendern aus manganhaltigen aluminium-legierungen
FR2365864A1 (fr) * 1976-09-22 1978-04-21 Alusuisse Procede de fabrication de conducteurs electriques en alliage d'aluminium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR655927A (fr) * 1927-11-02 1929-04-25 Alliage de fonderie, de laminage, d'estampage
US1873470A (en) * 1929-04-13 1932-08-23 Bell Telephone Labor Inc Cable armor
DE1817243B2 (de) * 1967-12-29 1977-12-08 Schweizerische Aluminium Ag, Chippis (Schweiz) Verfahren zur herstellung von feinkoernigen baendern aus manganhaltigen aluminium-legierungen
FR2346822A1 (fr) * 1976-03-31 1977-10-28 Trefimetaux Amelioration des procedes de recuit rapide de conducteurs electriques en alliage a base d'aluminium
FR2365864A1 (fr) * 1976-09-22 1978-04-21 Alusuisse Procede de fabrication de conducteurs electriques en alliage d'aluminium

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018946A1 (fr) * 1995-11-21 1997-05-29 Alcan International Limited Echangeur de chaleur
GB2321255A (en) * 1995-11-21 1998-07-22 Alcan Int Ltd Heat exchanger
GB2321255B (en) * 1995-11-21 2000-03-08 Alcan Int Ltd Heat exchanger
AU718229B2 (en) * 1995-11-21 2000-04-13 Novelis Inc. Heat exchanger
AU718229C (en) * 1995-11-21 2001-10-11 Novelis Inc. Heat exchanger
US6408938B2 (en) 1995-11-21 2002-06-25 Alcan International Limited Heat exchanger
EP1323839A1 (fr) * 1999-11-17 2003-07-02 Corus Aluminium Walzprodukte GmbH Alliage de brasage d'aluminium
KR100693673B1 (ko) * 1999-11-17 2007-03-09 코루스 알루미늄 발쯔프로두크테 게엠베하 알루미늄 브레이징 합금

Also Published As

Publication number Publication date
DE3012009C2 (de) 1984-02-02
DE3012009A1 (de) 1981-10-08

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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 DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19811118

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

Owner name: VEREINIGTE DEUTSCHE METALLWERKE AG

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19831101

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ALTHOFF, HEINZ JUERGEN, DR.