EP0000684A1 - Strangpressverfahren für hochfeste Aluminiumlegierungen - Google Patents

Strangpressverfahren für hochfeste Aluminiumlegierungen Download PDF

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Publication number
EP0000684A1
EP0000684A1 EP78420002A EP78420002A EP0000684A1 EP 0000684 A1 EP0000684 A1 EP 0000684A1 EP 78420002 A EP78420002 A EP 78420002A EP 78420002 A EP78420002 A EP 78420002A EP 0000684 A1 EP0000684 A1 EP 0000684A1
Authority
EP
European Patent Office
Prior art keywords
spinning
temperature
alloy
quenching
lubricant
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
EP78420002A
Other languages
English (en)
French (fr)
Other versions
EP0000684B1 (de
Inventor
Michel Denoux
Richard Deschamps
Francis Guitton
Jean-Mary Wattier
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.)
Cegedur Societe de Transformation de lAluminium Pechiney SA
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
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 Cegedur Societe de Transformation de lAluminium Pechiney SA filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Publication of EP0000684A1 publication Critical patent/EP0000684A1/de
Application granted granted Critical
Publication of EP0000684B1 publication Critical patent/EP0000684B1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • 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
    • C22F1/053—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 zinc 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
    • C22F1/057—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 copper as the next major constituent

Definitions

  • the present invention relates to a process for spinning high-strength aluminum alloys to manufacture bars, tubes or profiles.
  • high-strength aluminum alloys alloys making it possible to obtain, after working and heat treatment, a breaking strength greater than 35 kg / mm 2, in particular the alloys AI-Cu-Mg (Cu > 3%, Mg> 0.5%), of which the best known are 2014, 2017 A, 2030, and 2024, and AI-Zn-Mg-Cu alloys, the best known of which is 7075, according to the designations of the French standard AFNOR NF A-02-104.
  • a conventional lubricant for example a grease containing molybdenum disulfide and / or graphite, taking certain precautions so that the lubricant remains permanently in contact with the metal.
  • vitreous lubricant whose viscosity is between 10 3 and 10 4 poises between 400 and 650 ° C. for example.
  • a glassy lubricant containing elements such as P 2 0 5 - B 2 O 3 - K 2 0 - Na 2 O, makes it possible, under these conditions, to reach speeds greater than 100 m / minute. This process is not yet used industrially.
  • the method according to the invention constitutes an improvement to these rapid spinning techniques, and makes it possible to obtain products having an excellent surface condition, and good mechanical and metallurgical characteristics under very favorable economic conditions.
  • the billet may also be advantageous to reheat the billet before spinning to a temperature close to the normal solid solution dissolution temperature of the alloy, which is often more than 20 ° C. higher than the spinning temperature.
  • the billet is cooled rapidly, in less than 3 minutes, and preferably less than a minute, for example by a spraying device making it possible to avoid tapering up to the spinning temperature.
  • This arrangement ensures a more complete dissolution of the alloy and makes it possible to avoid excessive precipitates during spinning. From this raanlère, the heat released by the spinning will allow a dissolution of the metal after the exit of the industry in a very short time.
  • Any lubricant and any lubrication technique allowing the indicated spinning rates and speeds can be used for spinning, hydrostatic spinning can also be assimilated to lubricated spinning.
  • the above-mentioned vitreous product ( P 2 0 5 + B 2 0 3 + K 2 O + Na 2 0) which is soluble in water or in a liquid containing more than 80 can be used as a lubricant. % water, the rest being quench additives; elimination of the lubricant from the product: extrusion is then done instantly.
  • the quenching can be carried out in a manner known per se by spraying or by immersion.
  • Billet in 2030 alloy 145 mm in diameter were homogenized and then cooled in ambient air without special precautions.
  • the billets cut into pieces were reheated to 370 ° C., spun at this temperature with graphitized grease at a speed of 100 m / min, in the form of bars with a diameter of 12 mm.
  • the exit temperature of the wire obtained is around 510 ° C. and remains constant throughout the spinning which lasts approximately 30 seconds. Water quenching was carried out 20 seconds after spinning. Finally, the bars were stretched by 3% to obtain a diameter of 11.8 mm. The dimensional tolerances are always compatible with those of the drawn products.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
  • Glass Compositions (AREA)
  • Lubricants (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
  • Metal Extraction Processes (AREA)
  • Laminated Bodies (AREA)
EP78420002A 1977-07-29 1978-06-28 Strangpressverfahren für hochfeste Aluminiumlegierungen Expired EP0000684B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7724130 1977-07-29
FR7724130A FR2398558A1 (fr) 1977-07-29 1977-07-29 Procede de filage d'alliages d'aluminium a haute resistance

Publications (2)

Publication Number Publication Date
EP0000684A1 true EP0000684A1 (de) 1979-02-07
EP0000684B1 EP0000684B1 (de) 1980-09-03

Family

ID=9194263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78420002A Expired EP0000684B1 (de) 1977-07-29 1978-06-28 Strangpressverfahren für hochfeste Aluminiumlegierungen

Country Status (23)

Country Link
EP (1) EP0000684B1 (de)
JP (1) JPS5426269A (de)
AR (1) AR215941A1 (de)
AT (1) AT359360B (de)
AU (1) AU526176B2 (de)
BE (1) BE869353A (de)
BR (1) BR7804889A (de)
CA (1) CA1058109A (de)
CH (1) CH627382A5 (de)
DE (1) DE2860131D1 (de)
DK (1) DK333178A (de)
ES (1) ES471988A1 (de)
FR (1) FR2398558A1 (de)
GR (1) GR63648B (de)
HU (1) HU177294B (de)
IE (1) IE47282B1 (de)
IL (1) IL55216A (de)
IT (1) IT1097393B (de)
LU (1) LU80055A1 (de)
MX (1) MX150361A (de)
NO (1) NO143785C (de)
OA (1) OA06012A (de)
YU (1) YU181478A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0958392A1 (de) * 1996-06-06 1999-11-24 Reynolds Metals Company Verfahren zur verbesserung des korrosionswiderstandes von aluminiumlegierungen und daraus hergestellten teilen
CN102909229A (zh) * 2012-10-30 2013-02-06 浙江瑞金铜铝型材有限公司 一种7003铝合金型材的成型工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284327A (en) * 1992-04-29 1994-02-08 Aluminum Company Of America Extrusion quenching apparatus and related method
JP6195111B2 (ja) * 2013-12-03 2017-09-13 住友電工焼結合金株式会社 中空押出材の製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB891678A (en) * 1959-03-17 1962-03-14 Reynolds Metals Co Extrusion and heat treatment of aluminum alloys
FR1289208A (fr) * 1961-05-13 1962-03-30 Kaiser Aluminium Chem Corp Procédé de traitement thermique et d'extrusion des alliages d'aluminium
FR1294030A (fr) * 1961-07-04 1962-05-18 Aluminum Co Of America Procédé de production d'articles extrudés qui ont été chauffés pour la mise en solution et qui sont obtenus à partir d'alliages à base d'aluminium
US3145842A (en) * 1962-05-17 1964-08-25 Nat Res Corp Process for the extrusion of fine wire
AU411718B2 (en) * 1965-11-30 1971-03-29 Olin Matherson Chemical Corporation Process and article
GB1344249A (en) * 1970-02-25 1974-01-16 Olin Corp Process for treating an aluminum base alloy
FR2273077A1 (en) * 1974-05-31 1975-12-26 Cegedur Shock-resistant, deformable aluminium alloy extrusions - contg. silicon and magnesium and suitable for crash barriers and car bumpers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB891678A (en) * 1959-03-17 1962-03-14 Reynolds Metals Co Extrusion and heat treatment of aluminum alloys
FR1289208A (fr) * 1961-05-13 1962-03-30 Kaiser Aluminium Chem Corp Procédé de traitement thermique et d'extrusion des alliages d'aluminium
FR1294030A (fr) * 1961-07-04 1962-05-18 Aluminum Co Of America Procédé de production d'articles extrudés qui ont été chauffés pour la mise en solution et qui sont obtenus à partir d'alliages à base d'aluminium
US3145842A (en) * 1962-05-17 1964-08-25 Nat Res Corp Process for the extrusion of fine wire
AU411718B2 (en) * 1965-11-30 1971-03-29 Olin Matherson Chemical Corporation Process and article
GB1344249A (en) * 1970-02-25 1974-01-16 Olin Corp Process for treating an aluminum base alloy
FR2273077A1 (en) * 1974-05-31 1975-12-26 Cegedur Shock-resistant, deformable aluminium alloy extrusions - contg. silicon and magnesium and suitable for crash barriers and car bumpers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0958392A1 (de) * 1996-06-06 1999-11-24 Reynolds Metals Company Verfahren zur verbesserung des korrosionswiderstandes von aluminiumlegierungen und daraus hergestellten teilen
EP0958392A4 (de) * 1996-06-06 1999-11-24
CN102909229A (zh) * 2012-10-30 2013-02-06 浙江瑞金铜铝型材有限公司 一种7003铝合金型材的成型工艺

Also Published As

Publication number Publication date
OA06012A (fr) 1981-06-30
YU181478A (en) 1982-06-30
DK333178A (da) 1979-01-30
FR2398558B1 (de) 1982-02-19
IL55216A (en) 1981-07-31
HU177294B (en) 1981-09-28
EP0000684B1 (de) 1980-09-03
NO143785B (no) 1981-01-05
ES471988A1 (es) 1979-02-16
MX150361A (es) 1984-04-25
AR215941A1 (es) 1979-11-15
LU80055A1 (fr) 1979-05-15
CA1058109A (fr) 1979-07-10
NO143785C (no) 1981-04-15
IL55216A0 (en) 1978-09-29
NO782585L (no) 1979-01-30
DE2860131D1 (en) 1980-12-11
JPS5613529B2 (de) 1981-03-28
ATA548278A (de) 1980-03-15
BR7804889A (pt) 1979-05-08
JPS5426269A (en) 1979-02-27
IE47282B1 (en) 1984-02-08
FR2398558A1 (fr) 1979-02-23
AU3840578A (en) 1980-01-31
AT359360B (de) 1980-11-10
CH627382A5 (fr) 1982-01-15
AU526176B2 (en) 1982-12-23
GR63648B (en) 1979-11-28
IT7826049A0 (it) 1978-07-25
BE869353A (fr) 1979-01-29
IE781513L (en) 1979-01-26
IT1097393B (it) 1985-08-31

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