EP3016755B1 - Procédé et dispositif de revêtement d'un produit à façonner calaminé au moyen d'un lubrifiant - Google Patents

Procédé et dispositif de revêtement d'un produit à façonner calaminé au moyen d'un lubrifiant Download PDF

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Publication number
EP3016755B1
EP3016755B1 EP14741823.0A EP14741823A EP3016755B1 EP 3016755 B1 EP3016755 B1 EP 3016755B1 EP 14741823 A EP14741823 A EP 14741823A EP 3016755 B1 EP3016755 B1 EP 3016755B1
Authority
EP
European Patent Office
Prior art keywords
deformation
lubricant
scale
product
residence chamber
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.)
Not-in-force
Application number
EP14741823.0A
Other languages
German (de)
English (en)
Other versions
EP3016755A2 (fr
Inventor
Harri Weinhold
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.)
Ecoform Umformtechnik GmbH
Original Assignee
Ecoform Umformtechnik GmbH
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Filing date
Publication date
Application filed by Ecoform Umformtechnik GmbH filed Critical Ecoform Umformtechnik GmbH
Publication of EP3016755A2 publication Critical patent/EP3016755A2/fr
Application granted granted Critical
Publication of EP3016755B1 publication Critical patent/EP3016755B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • B21C9/005—Cold application of the lubricant

Definitions

  • the invention relates to the field of metallurgy and relates to a method and apparatus for coating scale-bearing metallic stranded forming material with a lubricant for forming in a downstream drawing process.
  • wire rod forming material plays an important role. It is well known that wire rod is covered with oxide, hydroxide and scale layers or the like. This, especially from the hot forming process originating surface layers must be carefully removed before pulling, because their presence not only cause a much higher wear of the drawing tools and a significant reduction in the possible pulling speed, but also a strong reduction in quality of the wire to be pulled. In many cases, a forming process under such conditions is not possible at all.
  • the mechanical cleaning methods can be subdivided during wire drawing usually in three in the drawing direction successive cleaning areas.
  • the wire rod is forcibly guided through a tortuous path of two angularly staggered roller assemblies, whereby the wire is bent both mutually and in two planes rotated by 90 ° and thus more or less flaking off the brittle scale layers from the metal surface ,
  • a second cleaning area is required in each case, namely brushing with wire brush systems.
  • the wire rod is treated in a third cleaning area to remove the remaining oxide dust residues with compressed air jets or high-pressure water jet impingement.
  • the bonded forming material is first enveloped in a lubricant chamber with a closed layer of a lubricant and subjected to a cross-section reducing forming ( DE 10 2004 015 975 B3 ).
  • This deformation causes the scale layer separates from the forming material and breaks into small layer parts, which are absorbed by the lubricant sheath.
  • the material thus treated is subjected to fine cleaning immediately after leaving the lubricant chamber with rotating plastic brushes and with a compressed air blower. Thereafter, a wire completely cleaned of scale is present for further processing in a downstream drawing process.
  • the invention has for its object to develop a method and an apparatus with which the coating of scale-bonded metallic stranded Umformgut with a solid lubricant for forming in a downstream drawing process while avoiding the removal of existing on metallic Umformgut scale layers or solid layers containing scale , is possible. At the same time the conditions for a substantial improvement of the stability of the downstream drawing process and the quality of the manufactured products are to be created.
  • the scale-bonded forming material is coated with a solid lubricant before the downstream drawing process and formed with a degree of deformation ⁇ of> 3% and then through at least one storage chamber for mixing the resulting from forming the scale layer Zunderteilchen with that on the Umformgut after this transformation drawn lubricant.
  • the material to be formed is advantageously drawn through a lubricant-filled chamber in which the solid lubricant is pressurized.
  • the brittle scale layer is detached from the material surface of the forming material and broken up into small scale particles.
  • the amount of the degree of deformation ⁇ is to be chosen so high that it is sufficient to bring about complete detachment of the scale layer from the metallic matrix of the surface of the material to be formed as a result of the surface enlargement.
  • the degree of deformation ⁇ must not be too high in order to disadvantageously press the scale layer detached in this way again onto the surface of the material to be formed.
  • the Umformgut is then pulled through a stowage chamber with cylindrical or conically running inside diameter in the pulling direction.
  • the forming material has a coating on exit from the stagnation chamber which need not be removed, but rather is usable as a high performance lubricant film for a downstream drawing process.
  • This lubricant film consists of the solid lubricant used in the pressure chamber and embedded therein Zunderteilchen.
  • the Zunderstaubteilchen improve in a surprising way quite decisively the pressure and temperature stability of the lubricant film and create the conditions for a substantial improvement in the stability of the downstream drawing process and the quality of the products produced.
  • the pressure prevailing in the storage chamber in the lubricant-scale particle mixture is regulated.
  • a storage chamber is used with an existing at the outlet, the thickness of the desired on the expiring Umformgut desired lubricant-scale particle film opening.
  • a die can be used for the determination of the thickness of the desired on the expiring Umformgut lubricant Zunderteilchen film.
  • the invention comprises a device arranged on a drawing machine, comprising means for enveloping a scale-bonded forming material with a solid lubricant under pressure and one or more downstream dies for forming the coated Umformgutes with a degree of deformation ⁇ of> 3% and a downstream Stowing chamber for mixing the resulting from forming the scale layer Zunderteilchen with the present on the Umformgut after this transformation lubricant.
  • the device for wrapping the scale-bonded forming material with a solid lubricant and for forming with a degree of deformation ⁇ of> 3% according to the invention is a lubricant-filled pressure chamber.
  • the stagnation chamber for mixing the scale particles formed as a result of forming from the scale layer with the lubricant present on the material to be formed after forming has a cylindrical diameter or conical inner diameter, wherein the inside diameter of the cylindrical stowage chamber is greater than 0.02 mm , than the diameter of the formed material.
  • the stowage chamber has an opening which determines the thickness of the lubricant-scale particle film desired on the outgoing material to be formed. This opening can be conveniently realized by a die with appropriate dimensions.
  • a device for regulating the lubricant pressure prevailing in the stagnation chamber can be arranged on the stagnation chamber.
  • the invention includes in its core a combination of technical measures for cleaning pretreatment of scale-shaped forming material with technical measures for coating such Umformgut for downstream forming.
  • advantageous synergistic effects are achieved by completely dispensing with a separate cleaning process for removal of the scale in the case of scale-bonded forming material and at the same time achieving a lubricant coating which, owing to its high pressure and temperature resistance, enables particularly efficient forming processes.
  • the apparatus shown in the drawing for coating a scale-bearing forming material 1 contains a (only partially shown) pressure chamber 2, which with a solid lubricant 3 is filled, which is under a pressure P.
  • the device is arranged on a drawing machine, not shown in the drawing before the forming stages serving forming.
  • the forming material 1 is pulled in the pulling direction Z by the device.
  • the Zunderbelag 5 located on the forming material 1 is crushed into small scale particles and released from the metallic matrix of the material to be formed.
  • the tinder particles are transported together with the lubricant on the Umformgut 1 in the subsequently arranged stowage chamber element 6, which has a cylindrical passage channel 7 whose inner diameter is 0.04 mm larger than the outer diameter of the Umformgutes.
  • the passage channel 7 of the storage chamber element 6 there is an intensive mixing of the scale particles with the lubricant.
  • a die 8 is arranged, which serves with its outlet opening for determining the coating thickness of the lubricant Zunderteilchen film on the Umformgut 1.
  • This lubricant film consists of the solid lubricant used in the pressure chamber and embedded therein Zunderteilchen.
  • the scale particles improve in a surprising manner quite decisively the pressure and temperature stability of the lubricant film and create the conditions for a substantial improvement in the stability of the downstream forming process and the quality of the products produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Lubricants (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (13)

  1. Procédé de revêtement d'un produit métallique en forme de barre calaminé à façonner (1) avec un lubrifiant (3) pour le façonnage dans un processus d'étirage qui suit, caractérisé en ce que le produit à façonner calaminé (1) est enrobé avant le processus d'étirage qui suit avec un lubrifiant solide (3) et est façonné avec un taux de déformation ε de > 3 % et il est ensuite étiré à travers une chambre d'accumulation (6) pour le mélange des particules de calamine provenant de la couche de calamine par suite du façonnage avec le lubrifiant présent sur le produit à façonner après ce façonnage.
  2. Procédé selon la revendication 1, caractérisé en ce que le produit à façonner calaminé est étiré à travers une chambre sous pression remplie de lubrifiant pour l'enrobage avec le lubrifiant solide et pour le façonnage avec un taux de déformation ε de > 3 %.
  3. Procédé selon la revendication 1, caractérisé en ce que le produit à façonner est étiré à travers une chambre d'accumulation avec un diamètre intérieur de forme cylindrique ou conique dans la direction de traction pour le mélange des particules de calamine provenant de la couche de calamine par suite du façonnage avec le lubrifiant présent sur le produit à façonner.
  4. Procédé selon la revendication 3, caractérisé en ce que l'on utilise une chambre d'accumulation avec une ouverture présente à la sortie et déterminant l'épaisseur du film de lubrifiant-particules de calamine désiré sur le produit à façonner sortant.
  5. Procédé selon la revendication 3, caractérisé en ce que l'on utilise une chambre d'accumulation avec une filière présente à la sortie et déterminant l'épaisseur du film de lubrifiant-particules de calamine désiré sur le produit à façonner sortant.
  6. Procédé selon la revendication 1, caractérisé en ce que l'on régule la pression régnant dans le mélange lubrifiant-particules de calamine dans la chambre d'accumulation.
  7. Dispositif de revêtement d'un produit métallique en forme de barre calaminé à façonner (1) avec un lubrifiant (3) pour le façonnage dans un processus d'étirage qui suit, caractérisé en ce qu'il comprend:
    dans une machine d'étirage, un dispositif pour l'enrobage d'un produit à façonner calaminé (1) avec un lubrifiant solide (3) sous l'action de la pression et
    une ou plusieurs filière (s) qui suivent (4) pour un façonnage du produit à façonner enrobé avec un taux de déformation ε de > 3 %, ainsi que
    une chambre d'accumulation qui suit (6), pour le mélange des particules de calamine provenant de la couche de calamine par suite du façonnage avec le lubrifiant présent sur le produit à façonner (1) après ce façonnage.
  8. Dispositif selon la revendication 7, caractérisé en ce que le dispositif pour l'enrobage du produit à façonner calaminé avec un lubrifiant solide et pour le façonnage avec un taux de déformation ε de > 3 % est une chambre sous pression remplie de lubrifiant.
  9. Dispositif selon la revendication 7, caractérisé en ce que la chambre d'accumulation présente, pour le mélange des particules de calamine provenant de la couche de calamine par suite du façonnage avec le lubrifiant présent sur le produit à façonner après le façonnage, présente un diamètre intérieur de forme cylindrique ou conique dans la direction de traction.
  10. Dispositif selon la revendication 7, caractérisé en ce que le diamètre intérieur de la chambre d'accumulation de forme cylindrique est plus grand d'une dimension > 0,02 mm que le diamètre du produit à façonner.
  11. Dispositif selon la revendication 7, caractérisé en ce que la chambre d'accumulation présente à son extrémité une ouverture déterminant l'épaisseur du film de lubrifiant-particules de calamine désiré sur le produit à façonner sortant.
  12. Dispositif selon la revendication 7, caractérisé en ce que la chambre d'accumulation présente à son extrémité une filière déterminant l'épaisseur du film de lubrifiant-particules de calamine désiré sur le produit à façonner sortant.
  13. Dispositif selon la revendication 7, caractérisé en ce qu'un dispositif pour la régulation de la pression de lubrifiant régnant dans la chambre d'accumulation est disposé à la chambre d'accumulation.
EP14741823.0A 2013-07-05 2014-07-02 Procédé et dispositif de revêtement d'un produit à façonner calaminé au moyen d'un lubrifiant Not-in-force EP3016755B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013213251.4A DE102013213251B4 (de) 2013-07-05 2013-07-05 Verfahren und Vorrichtung zum Beschichten von zunderbehaftetemUmformgut mit einem Schmierstoff
PCT/EP2014/064048 WO2015000951A2 (fr) 2013-07-05 2014-07-02 Procédé et dispositif de revêtement d'un produit à façonner calaminé au moyen d'un lubrifiant

Publications (2)

Publication Number Publication Date
EP3016755A2 EP3016755A2 (fr) 2016-05-11
EP3016755B1 true EP3016755B1 (fr) 2017-07-19

Family

ID=51212810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14741823.0A Not-in-force EP3016755B1 (fr) 2013-07-05 2014-07-02 Procédé et dispositif de revêtement d'un produit à façonner calaminé au moyen d'un lubrifiant

Country Status (6)

Country Link
US (1) US20160303628A1 (fr)
EP (1) EP3016755B1 (fr)
CN (1) CN105431239B (fr)
DE (1) DE102013213251B4 (fr)
RU (1) RU2667190C2 (fr)
WO (1) WO2015000951A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109513767A (zh) * 2018-11-27 2019-03-26 宁波市铭宏国光化工有限公司 一种金属线材拉丝工艺以及拉丝设备

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035180B (de) * 1954-03-04 1958-07-31 Benteler Geb Paderwerk Verfahren zur Entzunderung von warm gewalzten Profilstaeben, Rohren od. dgl.
DE1018829B (de) * 1954-11-30 1957-11-07 Nat Res Dev Verfahren und Vorrichtung zum hydraulischen Abstrecken von Draht
US2957825A (en) * 1956-10-15 1960-10-25 Devex Corp Powdered soap lubricant containing inorganic sulfur salts
GB837960A (en) * 1957-10-07 1960-06-15 Wiggin & Co Ltd Henry Improvements relating to the drawing of metal
US3503120A (en) * 1966-11-02 1970-03-31 Kaiser Aluminium Chem Corp Method of producing covered wire
US3478552A (en) * 1966-12-08 1969-11-18 Hobart Brothers Co Method of making welding electrode
JPS58132314A (ja) * 1982-02-01 1983-08-06 フセソユ−ズヌイ・ナウチノ−イスレドワ−チエルスキ−・イ・プロエクトヌイ・インスチツ−ト・トウゴプラウキフ・メタルロフ・イ・トベルドウイフ・スプラボフ モリブデンとその合金の線を引抜くための方法と装置
BG41686A1 (en) * 1984-12-17 1987-08-14 Petkov Device for drawing of wire
SU1409363A1 (ru) * 1986-01-28 1988-07-15 Уральский политехнический институт им.С.М.Кирова Устройство дл нанесени покрыти на движущуюс гильзу
JPS6483316A (en) * 1987-09-25 1989-03-29 Sumitomo Metal Ind Cold drawing method for steel stock
SU1640871A1 (ru) * 1989-06-02 1996-06-10 Череповецкий филиал Вологодского политехнического института Совмещенная линия очистки от окалины и волочения проволоки
US5498351A (en) * 1994-05-12 1996-03-12 Loctite Corporation Anti-seizing lubricant composition, and method of making the same
RU2138351C1 (ru) * 1997-07-16 1999-09-27 Магнитогорская государственная горно-металлургическая академия им. Г.И.Носова Способ изготовления проволоки из горячекатаной заготовки
DE19817088C2 (de) * 1998-04-17 2000-02-17 Ecoform Umformtechnik Gmbh Verfahren und Vorrichtung zum Beschichten und Umformen von strangförmigem metallischem Umformgut mittels Ziehen
CN2414858Y (zh) * 1999-08-25 2001-01-17 杨子衡 热轧盘条高压强冷液态拉拔与涂敷装置
DE102004015975B3 (de) 2004-03-26 2005-08-11 Ecoform Umformtechnik Gmbh Verfahren zum Entfernen von Zunder- und Rostschichten von metallischem Umformgut
JP5006405B2 (ja) * 2007-11-01 2012-08-22 古河電気工業株式会社 電子機器用導体線材およびそれを用いた配線用電線

Also Published As

Publication number Publication date
DE102013213251B4 (de) 2016-09-29
RU2667190C2 (ru) 2018-09-17
US20160303628A1 (en) 2016-10-20
CN105431239A (zh) 2016-03-23
DE102013213251A1 (de) 2015-01-08
RU2016103741A (ru) 2017-08-10
WO2015000951A2 (fr) 2015-01-08
EP3016755A2 (fr) 2016-05-11
CN105431239B (zh) 2018-03-06
WO2015000951A3 (fr) 2015-02-26

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