EP0053636A1 - Procédé et dispositif d'étirage en une ou plusieurs étapes - Google Patents

Procédé et dispositif d'étirage en une ou plusieurs étapes Download PDF

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Publication number
EP0053636A1
EP0053636A1 EP19800108196 EP80108196A EP0053636A1 EP 0053636 A1 EP0053636 A1 EP 0053636A1 EP 19800108196 EP19800108196 EP 19800108196 EP 80108196 A EP80108196 A EP 80108196A EP 0053636 A1 EP0053636 A1 EP 0053636A1
Authority
EP
European Patent Office
Prior art keywords
lubricant
chambers
chamber
flooding
working
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
EP19800108196
Other languages
German (de)
English (en)
Other versions
EP0053636B1 (fr
Inventor
Harri Dr.-Ing. Weinhold
Heinz-Rüdiger Dr.rer.nat. Vogel
Bernhard Dipl.-Phys. Kurze
Dieter Rauschenbach
Gerhard Dipl.-Jur. Bortfeld
Joachim Wolf
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.)
Schwermaschinenbau Kombinat Ernst Thalmann VEB
Original Assignee
Schwermaschinenbau Kombinat Ernst Thalmann VEB
SKET Schwermaschinenbau Magdeburg GmbH
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 Schwermaschinenbau Kombinat Ernst Thalmann VEB, SKET Schwermaschinenbau Magdeburg GmbH filed Critical Schwermaschinenbau Kombinat Ernst Thalmann VEB
Publication of EP0053636A1 publication Critical patent/EP0053636A1/fr
Application granted granted Critical
Publication of EP0053636B1 publication Critical patent/EP0053636B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/04—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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 for metal drawing
    • 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

  • the invention relates to the field of metallurgy.
  • metal forming material in the form of wires, rods, pipes, profiles and the like, preferably under hydrodynamic lubrication conditions.
  • Bare metal or lubricated metal can be used as the starting material.
  • liquid lubricants that consist of solutions or dispersions of solid or semi-solid lubricants
  • the applied liquid lubricant layer must be dried before the forming tool so that the advantages of the solid or semi-solid lubricant can be fully exploited.
  • the liquid contained in the lubricant must be removed before the material to be formed is introduced into the forming tool. Removal must be carried out very carefully, since the dynamic viscosity of the lubricant decreases if it is not adequately dried.
  • To remove the liquid it is already known to dry the coated material in drying ovens. This process is very time consuming, particularly for lubricants containing a high boiling point liquid.
  • Various forms of pressure-drawing tools are used for drawing with hydrodynamic lubrication.
  • One of these known pressure-drawing tools contains a run-in die and a working die, arranged one after the other in a two-part housing, a pressure space being formed between them.
  • solid lubricant is conveyed into the pressure chamber in front of the working die through the inlet die together with the incoming material.
  • the lubricant under the influence of the building up pressure and the frictional heat liquefied and printed in the drawing hole between the drawing material and working die.
  • a deficiency of this procedure is that there is a completely inadequate residual lubricant coating for subsequent drawing operations on the drawing material which emerges from the working die.
  • the completely inadequate residual lubricant coating is also particularly disadvantageous if pressure-drawing tools are used in which two working dies are arranged one behind the other. In this case, the second working die is insufficiently supplied with lubricant, which causes high die wear and rough surfaces of the drawing material. In addition, the possible forming speed and the possible degree of forming are restricted. A three- or multi-stage forming would not be possible with the construction principle of the tool due to these insufficient lubrication conditions.
  • the object of the invention is the provision of pre- a us aptitudeen for a simplification of the technological process steps and facilities, increasing the potential strain and the possible degree of deformation, reducing the drawing tool wear and improve the surface quality as well as an increase in labor productivity and for opening up power reserves for single or multi-stage drawing.
  • the invention has for its object to develop a adaptable to a wide variety of forming conditions, simple technology for single or multi-stage drawing, hei special methods and devices for applying and drying a liquid lubricant before the drawing tools avoided, each drawing tool with a sufficient amount Lubricant supplied and if necessary a re-coating of the material to be formed is possible or a significant lubricant residue can be avoided.
  • This object is achieved according to the invention with a method in which the material to be formed is drawn in one go through one or more chambers arranged one behind the other, at least one of the chambers optionally being flooded or empty with a liquid lubricant which contains a solid or semi-solid lubricant operated, the material to be formed is subjected to forming in one or more of the chambers and the optional flooding or emptying of the chambers is carried out before or during the forming process.
  • the lubricant concentration in the lubricant is varied depending on the respective forming conditions.
  • the flooding or emptying of the chambers as well as the variation of the lubricant concentration is expediently carried out during the shaping process according to a program which is coordinated with the respective shaping conditions.
  • the chambers are advantageously flooded with a liquid lubricant which consists of an organic solvent, such as trichlorethylene or benzene, and fatty acid salts, such as calcium stearate, dissolved therein.
  • the material to be formed is drawn through a chamber which is equipped with two or more working dies, one of which is located in the inlet and one in the outlet opening of the chamber, and the material to be heated as a result of the forming is passed between the working dies a flooding of the chamber is contacted with the lubricant during the forming.
  • the material to be formed can also be drawn through a chamber which is equipped with only one working die located in the inlet opening, the material to be heated as a result of the forming being immediately after it emerges from the working die by flooding the chamber with the liquid lubricant Contacted for the purpose of a re-coating and is subsequently fed to a drying.
  • the invention includes a device consisting of one or more chambers arranged one behind the other for the passage of the formed material, at least some of which have a feed line and a discharge line for optionally flooding or emptying the chambers with liquid lubricant in front during the forming process and wherein at least one working die is arranged in one of the chambers.
  • a collecting space for stripped dry lubricant which can be closed in a liquid-tight manner with respect to the chamber, is expediently located below each working die and the working dies are arranged in the inlet and / or outlet opening of the chambers
  • the new operating principle ensures that only a very thin, but completely sufficient film of lubricant is produced. This advantageously means that no more lubricant is supplied to the drawing hole than is necessary to maintain good lubrication conditions.
  • the drawing shows a schematic sectional view of a device which consists of lined up chambers 1 to 5.
  • a material to be formed 6 is drawn through these chambers from left to right.
  • a collecting space 13; 14 for stripped dry lubricant which by means of flaps 15; 16 opposite the chambers 2; 5 can be sealed liquid-tight.
  • the chambers 2; 3; 5 can lead 17; 18; 19 in connection with leads 20; 21; 22 are either flooded or emptied with a liquid lubricant, wise according to a certain program.
  • the feed lines 17; 18; 19 equipped with shut-off devices not shown in the drawing.
  • Calcium stearate dissolved in trichlorethylene is used as the liquid lubricant in this exemplary embodiment.
  • the lubricant is located in a lubricant reservoir, not shown in the drawing, which is connected to the supply lines 17; 18; 19 and the leads 20; 21; 22 is connected to a lubricant circuit.
  • the flooding of the chambers 2; 3; 5 is carried out by means of a lubricant pump arranged in the lubricant reservoir. That from the chambers 2; 3; 5 Lubricant flowing back into the lubricant reservoir is thermostatted and cleaned there.
  • Liquid lubricant which possibly penetrates from chamber 2 into chamber 1 via sealing element 10, or from chambers 3; 5 via the sealing elements 11; 12 into the chamber 4, is by means of lines 23; 24 returned to the lubricant reservoir.
  • the chamber 4 is with the chambers 3; 5 connected via heat insulating seals 25.
  • the device can be switched to another mode of operation during the drawing process, for example by emptying the chamber 3 after the flap 16 has been closed beforehand and the chamber 5 has been flooded with the liquid lubricant.
  • this mode of operation the material to be formed leaves the device bare, with an excellent surface quality and without any significant lubricant residue.
  • the device described in this exemplary embodiment adapted to the given starting materials, forming conditions and desired product qualities, can be switched over to other different operating modes before the start or during the drawing process, some examples of which are listed in the table below.
  • chambers 3 and 5 are to remain constantly flooded, the partitions of these chambers to the chamber 4 and the line 24 can be dispensed with, so that the device can be constructed correspondingly simpler and shorter. Another simplification is possible if chamber 2 is not to be flooded. Here, all of the structural parts arranged in front of the working die 7 can be omitted, including the collecting space 13.
  • chamber 5 can be omitted; in the case of a vertical arrangement with the wire drawing direction running upwards, the partition between the chambers 3 and 4 is also formed.
  • the wire is formed in one step and coated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
EP19800108196 1980-12-09 1980-12-24 Procédé et dispositif d'étirage en une ou plusieurs étapes Expired EP0053636B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD225895 1980-12-09
DD22589580A DD154334A1 (de) 1980-12-09 1980-12-09 Verfahren zum schmieren des ziehhols bei drahtziehmaschinen

Publications (2)

Publication Number Publication Date
EP0053636A1 true EP0053636A1 (fr) 1982-06-16
EP0053636B1 EP0053636B1 (fr) 1985-06-19

Family

ID=5527763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800108196 Expired EP0053636B1 (fr) 1980-12-09 1980-12-24 Procédé et dispositif d'étirage en une ou plusieurs étapes

Country Status (3)

Country Link
EP (1) EP0053636B1 (fr)
DD (1) DD154334A1 (fr)
DE (1) DE3070795D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098658A1 (fr) * 1982-07-05 1984-01-18 Lamitref Aluminium Procédé de fabrication de fil métallique, fil métallique ainsi obtenu et unité de production utilisée pour appliquer ce procédé
EP0140679A3 (en) * 1983-10-28 1985-10-02 Marshall Richards Barcro Limited Improved wire drawing method and apparatus
EP0163471A3 (en) * 1983-06-20 1986-06-18 Sumitomo Metal Industries, Ltd. Method for continuous drawing of wire rod
US4688411A (en) * 1984-05-21 1987-08-25 Sumitomo Metal Industries, Inc. Method for continuous drawing of wire rod
WO1999054066A1 (fr) * 1998-04-17 1999-10-28 Ecoform Umformtechnik Gmbh Procede et dispositif d'enduction et de deformation d'une matiere metallique en forme de barre a deformer par etirage
CN115415345A (zh) * 2022-09-23 2022-12-02 江苏阳铭互联智能系统有限公司 拉丝机的油脂收集结构
CN115875455A (zh) * 2022-12-22 2023-03-31 陕西光德电子材料有限公司 拉制光伏用铜杆防漏液装置及太阳能用轴装焊带

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD210524A3 (de) * 1981-07-09 1984-06-13 Adw Ddr Verfahren zum mehrstufigen ziehen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1659591A (en) * 1925-04-08 1928-02-21 American Steel & Wire Co Wire-drawing bench
DE513459C (de) * 1929-09-14 1930-11-28 Walther Nacken Anordnung der Ziehsteine bei Mehrfach-Drahtziehmaschinen
US2203751A (en) * 1938-02-26 1940-06-11 Simons Abraham Method of and apparatus for drawing wire
DE969263C (de) * 1954-05-07 1958-05-14 Felten & Guilleaume Carlswerk Verfahren und Vorrichtung zum Blankziehen von Stahldraehten oder -staeben mit starker Querschnittsabnahme
DE1527829A1 (de) * 1965-07-27 1970-02-26 Nat Standard Co Drahtziehverfahren
US3686908A (en) * 1971-02-01 1972-08-29 Wire Technology And Machinery Wire drawing apparatus and method
DE2741182A1 (de) * 1976-09-16 1978-03-30 Pvl Physikalische Versuchsanst Ziehverfahren und vorrichtung zu seiner durchfuehrung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1659591A (en) * 1925-04-08 1928-02-21 American Steel & Wire Co Wire-drawing bench
DE513459C (de) * 1929-09-14 1930-11-28 Walther Nacken Anordnung der Ziehsteine bei Mehrfach-Drahtziehmaschinen
US2203751A (en) * 1938-02-26 1940-06-11 Simons Abraham Method of and apparatus for drawing wire
DE969263C (de) * 1954-05-07 1958-05-14 Felten & Guilleaume Carlswerk Verfahren und Vorrichtung zum Blankziehen von Stahldraehten oder -staeben mit starker Querschnittsabnahme
DE1527829A1 (de) * 1965-07-27 1970-02-26 Nat Standard Co Drahtziehverfahren
US3686908A (en) * 1971-02-01 1972-08-29 Wire Technology And Machinery Wire drawing apparatus and method
DE2741182A1 (de) * 1976-09-16 1978-03-30 Pvl Physikalische Versuchsanst Ziehverfahren und vorrichtung zu seiner durchfuehrung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098658A1 (fr) * 1982-07-05 1984-01-18 Lamitref Aluminium Procédé de fabrication de fil métallique, fil métallique ainsi obtenu et unité de production utilisée pour appliquer ce procédé
US4549420A (en) * 1982-07-05 1985-10-29 Lamitref Aluminium Method for manufacturing wire
EP0163471A3 (en) * 1983-06-20 1986-06-18 Sumitomo Metal Industries, Ltd. Method for continuous drawing of wire rod
EP0140679A3 (en) * 1983-10-28 1985-10-02 Marshall Richards Barcro Limited Improved wire drawing method and apparatus
US4644769A (en) * 1983-10-28 1987-02-24 Marshall Richards Barcro Limited Wire drawing method and apparatus
US4688411A (en) * 1984-05-21 1987-08-25 Sumitomo Metal Industries, Inc. Method for continuous drawing of wire rod
WO1999054066A1 (fr) * 1998-04-17 1999-10-28 Ecoform Umformtechnik Gmbh Procede et dispositif d'enduction et de deformation d'une matiere metallique en forme de barre a deformer par etirage
AU754440B2 (en) * 1998-04-17 2002-11-14 Ecoform Umformtechnik Gmbh Method and device for coating and shaping strand-shaped metallic material by drawing
CN115415345A (zh) * 2022-09-23 2022-12-02 江苏阳铭互联智能系统有限公司 拉丝机的油脂收集结构
CN115875455A (zh) * 2022-12-22 2023-03-31 陕西光德电子材料有限公司 拉制光伏用铜杆防漏液装置及太阳能用轴装焊带

Also Published As

Publication number Publication date
DD154334A1 (de) 1982-03-17
DE3070795D1 (en) 1985-07-25
EP0053636B1 (fr) 1985-06-19

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