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ES266707A1 - Improvements in or relating to the extrusion of metal sheaths for electric cables - Google Patents

Improvements in or relating to the extrusion of metal sheaths for electric cables

Info

Publication number
ES266707A1
ES266707A1 ES0266707A ES266707A ES266707A1 ES 266707 A1 ES266707 A1 ES 266707A1 ES 0266707 A ES0266707 A ES 0266707A ES 266707 A ES266707 A ES 266707A ES 266707 A1 ES266707 A1 ES 266707A1
Authority
ES
Spain
Prior art keywords
extrusion
exit
electric cables
solidification
metal
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
ES0266707A
Other languages
Spanish (es)
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of ES266707A1 publication Critical patent/ES266707A1/en
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
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
    • B21C23/26—Applying metal coats to cables, e.g. to insulated electric cables
    • 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
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
    • 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
    • B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Continuous Casting (AREA)

Abstract

A procedure for covering electric cables using metal sheaths, obtained by extrusion, starting from the metal in a liquid state and at atmospheric pressure, characterized essentially by the fact that: a) The extrusion mouth is energetically cooled, near its exit to determine the solidification in such area and of the extruded material, even at the highest extrusion speeds; b) A low melting point alloy is injected between the extrusion jacket and the walls of the extrusion mouth, in a liquid state, for cooling and lubricating purposes. c) At the exit of the extrusion, longitudinal dynamic stresses of discontinuous traction are applied, so as to favor the solidification of the aluminum in the vicinity of the exit of the extrusion mouth in the intervals between the successive stresses of traction. (Machine-translation by Google Translate, not legally binding)
ES0266707A 1960-04-11 1961-04-11 Improvements in or relating to the extrusion of metal sheaths for electric cables Expired ES266707A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT681360 1960-04-11

Publications (1)

Publication Number Publication Date
ES266707A1 true ES266707A1 (en) 1963-07-16

Family

ID=11122093

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0266707A Expired ES266707A1 (en) 1960-04-11 1961-04-11 Improvements in or relating to the extrusion of metal sheaths for electric cables

Country Status (4)

Country Link
CH (2) CH375317A (en)
DE (1) DE1402765A1 (en)
ES (1) ES266707A1 (en)
GB (1) GB903207A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817161B (en) * 2014-02-26 2015-12-16 泉州市一鸣交通电器有限公司 A kind of manufacture warm cold-extruded forging pipe drawing device

Also Published As

Publication number Publication date
CH375317A (en) 1964-02-29
GB903207A (en) 1962-08-15
DE1402765A1 (en) 1968-11-14
CH376458A (en) 1964-04-15

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