EP0025041A1 - Dispositif pour l'etirage de fils, barres, tuyaux ou analogues - Google Patents

Dispositif pour l'etirage de fils, barres, tuyaux ou analogues

Info

Publication number
EP0025041A1
EP0025041A1 EP80900432A EP80900432A EP0025041A1 EP 0025041 A1 EP0025041 A1 EP 0025041A1 EP 80900432 A EP80900432 A EP 80900432A EP 80900432 A EP80900432 A EP 80900432A EP 0025041 A1 EP0025041 A1 EP 0025041A1
Authority
EP
European Patent Office
Prior art keywords
channel
lubrication
inclination
pipes
pressure
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Withdrawn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
EP80900432A
Other languages
German (de)
English (en)
Inventor
Bertwin Langenecker
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.)
Elektroinstallation und -Gerate Pvl-Physikalische Versuchsanstalt Dr Bertwin Langenecker
Original Assignee
Elektroinstallation und -Gerate Pvl-Physikalische Versuchsanstalt Dr Bertwin Langenecker
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 Elektroinstallation und -Gerate Pvl-Physikalische Versuchsanstalt Dr Bertwin Langenecker filed Critical Elektroinstallation und -Gerate Pvl-Physikalische Versuchsanstalt Dr Bertwin Langenecker
Publication of EP0025041A1 publication Critical patent/EP0025041A1/fr
Withdrawn legal-status Critical Current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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating

Definitions

  • Pressure lubrication has been increasingly used in wire drawing technology in recent years. There are several principles, the best known of which are: a) generating pressure using external pumps; b) generating the pressure with the aid of a lubrication channel in which the pressure builds up as a function of the length and diameter of the tube in relation to the diameter of the wire, rod or tube to be drawn; c) Suitably shaped double or multiple drawing blocks.
  • the object of the invention is to further improve these known drawing devices.
  • the improvement according to the invention makes it possible to achieve increased cross-sectional reductions and / or increased drawing speeds, in particular in the case of materials which have poor drawing properties.
  • the object of the invention is achieved in that the nozzle-shaped drawing channel and the lubrication channel are each arranged in a single body and the inclination of the walls of the lubrication channel to the channel axis is 2-10 °.
  • the inclination is preferably 4-9 ° or 5-8 °.
  • the two channels Due to the separate arrangement of the lubrication channel and the draw channel in one body, it is possible to design the two channels independently of one another and to adapt them to the tasks on which they are based. So the choice of knife, the taper and the length of the drawing channel can be set entirely to the lubricant to be used and to the desired lubricant pressure at the end of the lubricating channel. This pressure depends on the material and the drawing speed.
  • the drawing channel is arranged in a separate component, it can be given the best shape for the deformation.
  • the high lubricant pressures in the drawing channel that can be achieved through the conical drawing channel did not make it seem favorable to have two bodies collide in this zone because sealing difficulties were feared.
  • the hydrodynamic pressure does not build up linearly, but can lead to a maximum pressure in the channel and thus in front of the drawing channel.
  • the viscosity of the lubricant and the drawing speed such high pressures can be achieved that the material to be drawn is deformed before it enters the drawing die.
  • the drawing tool itself then has to bring about a small deformation, so that when the deformation in the drawing die is fully utilized, a larger cross-sectional decrease is possible, namely by that which already occurs in the lubrication channel.
  • This deformation in the lubrication channel is not always uniform, so that the drawing tool also has the task of calibrating the drawing material.
  • the pressure that arises in the inlet duct can, with the correct choice of the angle of inclination, the inlet and outlet ducts of the duct, with the appropriate length and with appropriate selection of the viscosity of the lubricant, values up to 20,000 bar can be reached. Most of the materials used in practice are already deformed at such a pressure maximum.
  • the drawing die 1 is located in the bore 2 of a tool holder 3, which is provided with an internal thread, into which a nipple 4 is screwed, which presses the drawing die 1 against a shoulder 5 of the tool holder 3.
  • the nipple 4 is provided with a conical channel 6, which tapers towards the drawing die 1.
  • the tool holder 3 has a king channel 7, which is covered by an annular disk 8 which is screwed to the tool holder 3. Ring seals 9 are provided for sealing.
  • the coolant is supplied and discharged by means of lines 10 and 11.
  • the inclination of the duct wall to the duct axis depends on the viscosity of the lubricant used and thus on the material of the goods to be drawn.
  • an inclination of 4 - 5o has proven to be particularly favorable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Electric Cable Installation (AREA)

Abstract

Dispositif pour l'etirage de fils, barres, tuyaux ou analogues sous pression hydrodynamique au moyen d'une filiere a laquelle est associee un canal (6) de mise sous pression de forme conique, la filiere et le canal etant des corps independants (1, 4) et la paroi du canal faisant un angle avec l'axe de celui-ci compris entre 2 et 10 .
EP80900432A 1979-03-01 1980-09-10 Dispositif pour l'etirage de fils, barres, tuyaux ou analogues Withdrawn EP0025041A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1561/79 1979-03-01
AT0156179A AT372022B (de) 1979-03-01 1979-03-01 Vorrichtung zum ziehen von draehten, stangen, rohren od. dgl.

Publications (1)

Publication Number Publication Date
EP0025041A1 true EP0025041A1 (fr) 1981-03-18

Family

ID=3516063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900432A Withdrawn EP0025041A1 (fr) 1979-03-01 1980-09-10 Dispositif pour l'etirage de fils, barres, tuyaux ou analogues

Country Status (16)

Country Link
EP (1) EP0025041A1 (fr)
JP (1) JPS56500245A (fr)
AR (1) AR222371A1 (fr)
AT (1) AT372022B (fr)
BE (1) BE882013A (fr)
BR (1) BR8007227A (fr)
CA (1) CA1147293A (fr)
DE (1) DE3034315D2 (fr)
ES (1) ES8100914A1 (fr)
GB (1) GB2055656A (fr)
IT (1) IT1128880B (fr)
PL (1) PL222396A1 (fr)
SE (1) SE8007645L (fr)
WO (1) WO1980001765A1 (fr)
YU (1) YU54580A (fr)
ZA (1) ZA801190B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820660B1 (fr) * 2001-02-14 2003-04-04 Roger Marcel Sabau Dispositif permettant de trefiler ou d'etirer les metaux, ferreux et non ferreux (fils, barres, tubes) avec une usure quasi-nulle des filieres et un respect total de l'etat de surface de tous les produits fabriques
FR2820661B1 (fr) * 2001-02-14 2004-09-24 Roger Marcel Sabau Dispositif permettant de trefiler ou d'etirer les metaux ferreux et non ferreux (fils, barres, tubes) avec une usure quasi-nulle des filieres et un respect total de l'etat de surface de tous les produits fabriques
EP1388379A1 (fr) * 2002-08-08 2004-02-11 Roger Sabau Dispositif permettant de tréfiler ou étirer (fils, barres, tubes) avec une usure quasi-nulle des filières et l'obtention de conditions tribologiques optimales
US9635962B2 (en) 2012-04-12 2017-05-02 Cabeau, Inc. Travel pillow with lateral and rear support bar and a flat and thin back
US9968197B2 (en) 2014-03-11 2018-05-15 Cabeau, Inc. Travel pillow
US10321765B2 (en) 2014-03-11 2019-06-18 Cabeau, Inc. Travel pillow
USD762400S1 (en) 2014-10-20 2016-08-02 Cabeau, Inc. Travel pillow
EP3355747A4 (fr) 2015-09-29 2019-11-27 Cabeau, Inc. Coussin cervical comportant des supports de menton, de multiples points d'ancrage et une attache magnétique
USD790880S1 (en) 2015-09-29 2017-07-04 Cabeau, Inc. Neck pillow

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1582434A (en) * 1926-02-08 1926-04-27 Simons Abraham Apparatus for drawing wire
US2029039A (en) * 1934-11-06 1936-01-28 Simons Aaron Process and apparatus for wire drawing
US2088040A (en) * 1936-08-07 1937-07-27 Simons Abraham Method of and apparatus for wiredrawing
FR1139790A (fr) * 1954-11-30 1957-07-04 Nat Res Dev Procédé et appareil de tréfilage
US3080962A (en) * 1959-06-12 1963-03-12 Copperweld Steel Co Die drawing of clad rod or wire
US3413832A (en) * 1965-07-27 1968-12-03 Nat Standard Co Wire drawing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8001765A1 *

Also Published As

Publication number Publication date
PL222396A1 (fr) 1980-11-17
YU54580A (en) 1983-01-21
JPS56500245A (fr) 1981-03-05
DE3034315D2 (en) 1981-04-23
ES489069A0 (es) 1980-12-01
ATA156179A (de) 1983-01-15
ZA801190B (en) 1981-05-27
SE8007645L (sv) 1980-10-30
AT372022B (de) 1983-08-25
IT1128880B (it) 1986-06-04
ES8100914A1 (es) 1980-12-01
GB2055656A (en) 1981-03-11
CA1147293A (fr) 1983-05-31
BR8007227A (pt) 1980-12-30
BE882013A (fr) 1980-06-16
WO1980001765A1 (fr) 1980-09-04
IT8067320A0 (it) 1980-02-29
AR222371A1 (es) 1981-05-15

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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): FR

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19810805

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LANGENECKER, BERTWIN