DE3460477D1 - Process for improving the flexibility of cold-worked copper tubes by partial annealing - Google Patents

Process for improving the flexibility of cold-worked copper tubes by partial annealing

Info

Publication number
DE3460477D1
DE3460477D1 DE8484420101T DE3460477T DE3460477D1 DE 3460477 D1 DE3460477 D1 DE 3460477D1 DE 8484420101 T DE8484420101 T DE 8484420101T DE 3460477 T DE3460477 T DE 3460477T DE 3460477 D1 DE3460477 D1 DE 3460477D1
Authority
DE
Germany
Prior art keywords
cold
improving
flexibility
worked copper
copper tubes
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
DE8484420101T
Other languages
German (de)
Inventor
Bernard Fargette
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.)
Trefimetaux SAS
Original Assignee
Trefimetaux SAS
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 Trefimetaux SAS filed Critical Trefimetaux SAS
Application granted granted Critical
Publication of DE3460477D1 publication Critical patent/DE3460477D1/en
Expired legal-status Critical Current

Links

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
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Extraction Processes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Materials For Medical Uses (AREA)
  • Forging (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Conductive Materials (AREA)

Abstract

1. A process for improving the bendability of a cold-worked copper pipe characterised in that the cold-worked copper pipe is subjected to a partial annealing step, which affects the cortical zone only, at a temperature of between 150 and 350 degrees C for a period of between 5 minutes and 24 hours.
DE8484420101T 1983-06-09 1984-06-08 Process for improving the flexibility of cold-worked copper tubes by partial annealing Expired DE3460477D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8309942A FR2547317B3 (en) 1983-06-09 1983-06-09 PROCESS FOR IMPROVING THE CINTRABILITY OF A NUT OF COPPER TUBE, BY PARTIAL ANNEALING

Publications (1)

Publication Number Publication Date
DE3460477D1 true DE3460477D1 (en) 1986-09-18

Family

ID=9289835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484420101T Expired DE3460477D1 (en) 1983-06-09 1984-06-08 Process for improving the flexibility of cold-worked copper tubes by partial annealing

Country Status (6)

Country Link
EP (1) EP0128846B1 (en)
AT (1) ATE21418T1 (en)
DE (1) DE3460477D1 (en)
ES (1) ES8503035A1 (en)
FR (1) FR2547317B3 (en)
IE (1) IE56119B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006273B (en) * 1954-05-10 1957-04-11 Daimler Benz Ag Mechanical remote control of change gears for buses and other large vehicles
FR2668170B1 (en) * 1990-10-18 1992-12-11 Trefimetaux PROCESS FOR IMPROVING THE CINTRABILITY OF HARD COPPER TUBES BY DYNAMIC HEAT TREATMENT.
DE4334536A1 (en) * 1993-10-09 1995-04-13 Kabelmetal Ag Process for the production of seamless drawn semi-hard / hard installation pipes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708354A (en) * 1971-06-09 1973-01-02 Anaconda American Brass Co Method and apparatus for measuring and controlling the continuous annealing of a long length of metal tubing
US3774431A (en) * 1972-07-10 1973-11-27 Asea Ab Method of manufacturing copper tubes by means of hydrostatic extrusion and press equipment for carrying out the method

Also Published As

Publication number Publication date
FR2547317B3 (en) 1986-02-28
EP0128846A1 (en) 1984-12-19
IE56119B1 (en) 1991-04-24
EP0128846B1 (en) 1986-08-13
FR2547317A1 (en) 1984-12-14
ES533241A0 (en) 1985-02-01
ES8503035A1 (en) 1985-02-01
IE841436L (en) 1984-12-09
ATE21418T1 (en) 1986-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee