EP0790869B1 - Verfahren und vorrichtung zum umformen und/oder beschichten von strangförmigem metallischem umformgut - Google Patents
Verfahren und vorrichtung zum umformen und/oder beschichten von strangförmigem metallischem umformgut Download PDFInfo
- Publication number
- EP0790869B1 EP0790869B1 EP95900713A EP95900713A EP0790869B1 EP 0790869 B1 EP0790869 B1 EP 0790869B1 EP 95900713 A EP95900713 A EP 95900713A EP 95900713 A EP95900713 A EP 95900713A EP 0790869 B1 EP0790869 B1 EP 0790869B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- pressure
- pressure chamber
- forming
- coating
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000000576 coating method Methods 0.000 title claims abstract description 38
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 239000007769 metal material Substances 0.000 title description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 184
- 239000007787 solid Substances 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000008187 granular material Substances 0.000 claims abstract description 6
- 239000008188 pellet Substances 0.000 claims abstract description 6
- 238000004146 energy storage Methods 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 2
- 239000004484 Briquette Substances 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- -1 pressed body Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 27
- 229910000831 Steel Inorganic materials 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 235000011837 pasties Nutrition 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 241000123330 Fomes fomentarius Species 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
Definitions
- the invention relates to the field of metallurgy, especially wire drawing, and relates to a method and a device for forming and / or coating strand-like Metallic metal with solid to pasty Lubricants.
- a method and a device for applying are known solid or semi-solid lubricants for the cold forming of metallic Materials in which the material to be formed is closed Chamber is introduced, in which one under the influence of Pressure and / or temperature of the liquefied lubricant (DD 147 209).
- the chamber is designed as a heatable pressure chamber with a loading and pressure generating device for the Lubricant connected.
- the pressure chamber has formed goods with an inlet and an outlet nozzle.
- the invention is based, a method and a task Device for reshaping and / or coating strand-like Metallic metal with solid to paste-like lubricants using a pressure chamber for the lubricant to be designed so that the sealing problems on the pressure chamber significantly reduced and at the same time one or more technological Dependent parameters in the forming and coating process be decisively improved by the respective material to be formed can.
- the strand-like metallic runs up to pasty lubricants Formed material through at least one inlet nozzle into a pressure chamber and exits through at least one outlet nozzle, becomes solid to paste-like lubricant in the pressure chamber introduced, is on the located in the pressure chamber solid to paste-like lubricant externally applied pressure, the pressure-temperature combination always used outside the range of pressure-temperature combinations for the liquefaction of the lubricant used is, and will the pressure in the pressure chamber is adjusted and / or regulated.
- the method is advantageously carried out once or several times a multi-stage forming process used.
- reaction layer deformed material to be formed which during the forming reaction layer separating from the material to be formed into the lubricant embedded on the material to be formed and subsequently together with the Lubricant is removed.
- a lubricant supply is also advantageous Lubricant introduced into the pressure chamber and in one lubricant reservoir located opposite saved. It becomes a rechargeable energy storage element charged. During the reloading of the lubricant supply discharge the energy storage element, whereby the stored Lubricant is pressed into the pressure chamber.
- the strand-shaped metallic advantageously runs Formed material after the pressure chamber through a subsequent hydrodynamic Pressure nozzle for coating and forming or through a subsequent coating chamber.
- the solid lubricant is a powder or molded body, preferably as a compact or pellet or Granules, is introduced into the pressure chamber.
- the inventive device for forming and / or coating from strand-shaped metal material with solid to paste-like lubricants contain a pressure chamber with at least an inlet nozzle and at least one outlet nozzle which runs the material to be formed, at least one feeder for fixed to paste-like lubricant, pressurized solid up paste-like lubricant in the pressure chamber, the pressure is applied externally and the applied pressure-temperature combination always outside the range of pressure-temperature combinations for the liquefaction of the lubricant used and at least one apparatus for generating pressure, whereby the pressure is set and / or regulated by this apparatus is or by at least one other apparatus for pressure adjustment and / or pressure control.
- the solid to pasty Introduce lubricant into the pressure chamber being the fixed Lubricant as a powder or shaped body, preferably as compacts or pellets or granules is used.
- the pressure is also advantageously generated hydraulically.
- a flow divider blocks the lubricant flow before reaching the metal to be formed in the Pressure chamber divides.
- a lubricant supply and opposite a lubricant reservoir with a rechargeable Energy storage element are attached.
- Lubricant reservoir Lubricant pressed and the energy storage element charged.
- the energy storage element discharged and thereby the one stored in the lubricant store Lubricant pressed into the pressure chamber.
- outlet nozzle is the inlet nozzle a downstream hydrodynamic pressure nozzle for coating and forming or a downstream coating chamber is.
- Solid lubricant is preferably introduced into the pressure chamber.
- the device according to the invention and the invention Processes have the great advantage that they are not only powdery Lubricant can be used, but also lubricant as a shaped body, such as. as a compact, pellet or granulate. With that achieved numerous advantages shown below.
- the device according to the invention also works if the lubricant introduced is pasty, i.e. pasty or is mushy.
- the lubricant is under a set or adjustable Pressure.
- the pressure is applied externally.
- the pressure chamber contains at least one inlet and one outlet nozzle.
- the strand-like metallic material to be formed as the inlet nozzle or the outlet nozzle Drawing die be formed or both nozzles.
- the most advantageous Variant is that the outlet nozzle as a drawing die is trained.
- the device is not for forming, but only for coating of metallic strands with lubricant is determined, none of the nozzles is a forming die educated.
- the pressure chamber also has at least one feed for the lubricant.
- the lubricant supply must be like this be designed so that the set and / or regulated pressure, which acts on the lubricant in the pressure chamber during a Coating and / or forming process kept as constant as possible becomes. This can be achieved, among other things, by advantageously two opposite lubricant feeds used. This allows a lubricant supply Lubricant are introduced into the pressure chamber while for at the same time the other feed is filled with lubricant becomes. By sealing the filling of the lubricant in each case against the pressure chamber can be a constant or only maintain slightly fluctuating pressure in the pressure chamber become.
- Another way to introduce lubricant without essential Pressure drop in the pressure chamber is that only one Lubricant supply and a lubricant reservoir opposite attached with a rechargeable energy storage element are.
- lubricant is stored in the lubricant reservoir pressed and thereby charged the energy storage element. While of reloading the lubricant supply with lubricant discharge the energy storage element and thereby in the lubricant storage stored lubricant pressed into the pressure chamber.
- heated material can also be heated and / or cooled Lubricant can be used.
- heated material can also be heated and / or cooled Lubricant can be used.
- both are warmer or cooled lubricant can be used, or in one Part of the device, e.g. in the lubricant supply, cooled Lubricant is present and at the same time in another Part of the device, e.g. in the pressure chamber, heated lubricant is available.
- the pressure prevailing at the outlet of the inlet nozzle is due to the geometric conditions in the area of the inlet nozzle and due to the viscosity of the lubricant continuously up to Zero to the start of the cylindrical guide length of the inlet nozzle reduced. This is a deformation for sealing on this Not mandatory.
- lubricant moldings provided according to the invention can be based on the state of the art widespread use of powdered lubricants dispensed with become. This will help with manufacturing, transportation and the use of lubricant powders avoiding harmful health and environmental pollution.
- the specificity of the lubricant used according to the invention also opens up the possibility of developing new lubricant combinations.
- the invention can also be used to influence product quality through defined reshaping, through expanding the possibilities the technology in terms of parameters such as with regard to higher degrees of deformation, more stable and constant Lubrication conditions and higher pulling speeds achieved become.
- the targeted adjustment of the surface quality can also be implemented of the formed material as well as a better utilization of the material plasticity due to the improved stress condition the forming.
- Flow divider 22 may be installed in the pressure chamber 14, such as this Figure 2 illustrates.
- valves 2; 3; 4; 5 The control of the valves 2; 3; 4; 5 is carried out with a central hydraulic unit 1 connected programmable logic controller Control.
- a lubricant based on sodium stearate is used as the solid lubricant used.
- the uncoated pre-drawn steel wire 19 passes through the Inlet nozzle 20 in the pressure chamber 14.
- Inlet nozzle 20 from a drawing die, the inside diameter of which is 0.04 mm is larger than the outer diameter of the uncoated pre-drawn Steel wire 19.
- the now coated passes Steel wire 19, the outlet nozzle 21, which in this case a drawing die, which coats the coated steel wire 19 a reduction in cross-section of 30%.
- the lubricant is introduced into the pressure chamber 14 as follows.
- the plunger 11 When the plunger 11 has reached its front end position, it stops the hydraulic cylinder 7 the connection between the pressure chamber 14 and the feed channel 9, while the hydraulic cylinder 6 the connection between the pressure chamber 14 and Feed channel 8 releases again, so that the compressed Lubricant compact 18 are introduced into the pressure chamber 14 can.
- This film enables the steel wire 19 to be formed in the designed as a drawing die outlet nozzle 25, and it is simultaneously stamped so firmly that it is possible to connect the steel wire 19 undergo further forming without additional lubricant.
- Example 2 is the best way to practice the invention specified.
- a current divider 22 in the Pressure chamber 14 may be installed, as shown in Figure 2.
- valves 2 and 5 The control of valves 2 and 5 is carried out with a central hydraulic unit 1 connected programmable logic controller Control.
- a calcium stearate-based lubricant powder is used as the solid lubricant used.
- the stainless steel wire 19 passes through the inlet nozzle 20 into the Pressure chamber 14.
- the inlet nozzle 20 consists of a drawing die whose inner diameter is 0.02 mm larger than the outside diameter of the stainless steel wire 19.
- the outlet nozzle 21 in this Trap consists of a drawing die that holds the coated stainless steel wire 19 formed with a 22% decrease in cross-section.
- the lubricant is introduced into the pressure chamber 14 as follows.
- the pressure chamber 14 opened towards the lubricant reservoir 29, so that a part of the lubricant in the pressure chamber 14 in enters the lubricant reservoir 29 and that with the hydraulic cylinder 23 rechargeable energy storage element 30 against that in the hydraulic cylinder 23 applied oil pressure shifts. So that will be Energy storage element 30 charged.
- the plunger 11 When the plunger 11 has reached its front end position, it stops the check valve 24 the connection between the pressure chamber 14 and the feed channel 9. At that moment it turns out the lubricant reservoir 29 that is open with respect to the pressure chamber 14 the lubricant stored there is introduced into the pressure chamber 14 by discharging the energy storage element 30.
- the fill level sensor 26 monitors the supply of lubricant powder 28 in the powder chute 27.
- This film enables the stainless steel wire 19 to be formed the outlet nozzle 25 designed as a drawing die Lubricant film stamped so firmly at the same time that it is possible is the stainless steel wire 19 without additional lubricant coating undergo further transformations.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Chemically Coating (AREA)
- Forging (AREA)
- Coating By Spraying Or Casting (AREA)
Description
- Figur 1
- zeigt eine schematische Darstellung der erfindungsgemäßen Vorrichtung zum Beschichten eines Drahtes mit einem Festschmierstoffilm bei gleichzeitigem Umformen beim Austritt des Drahtes aus der Druckkammer.
- Figur 2
- zeigt den schematischen Aufbau der Druckkammer mit einem Stromteiler als Draufsicht von Fig. 1.
- Figur 3
- zeigt eine schematische Darstellung der erfindungsgemäßen Vorrichtung mit einer Schmierstoffzuführung und einem Schmierstoffspeicher.
- eine Druckkammer 14,
- eine jeweils als Ziehstein ausgebildete Ein- und Auslaufdüse 20:21
- eine Zuführung, bestehend aus Zuführschächten 15;16 für
Schmierstoff-Preßlinge 18 und Zuführungskanälen 8;9,
die den Weitertransport der Schmierstoff -Preßlinge 18 von den
Zuführschächten 15;16 in die Druckkammer 14 ermöglichen,
und - eine Apparatur zur Druckerzeugung, bestehend aus Hydraulikzylindern 12;13 für die Druckerzeugung in der Druckkammer 14 mit Ventilen 2;5 und Druckstößeln 10;11, einem zentralen Hydraulikaggregat 1, einer Druckmeßeinrichtung 17 und Hydraulikzylindern 6;7 mit dazugehörigen Ventilen 3;4 zur Abschieberung der Druckkammer 14.
- die Druckkammer 14,
- die jeweils als Ziehstein ausgebildete Ein- und Auslaufdüse 20;21
- eine Schmierstoffzuführung, bestehend aus einem Pulverschacht 27 für ein Schmierstoff-Pulver 28 und dem Zuführungskanal 9, der den Weitertransport des Schmierstoffpulvers 28 in die Druckkammer 14 ermöglicht und aus einem Schmierstoffspeicher 29 mit einem aufladbaren Energiespeicherelement 30
- eine elektrische Heizung 25, die zur Erwärmung des Schmierstoff-Pulvers
während des Verpressens und des Transports im
Zuführungskanal 9 dient,
und - eine Apparatur zur Druckerzeugung, bestehend aus dem Hydraulikzylinder 13 für die Druckerzeugung in der Druckkammer 14 mit dem Ventil 5 und dem Druckstößel 11, dem zentralen Hydraulikaggregat 1, einem Rückschlagventil 24 zur Abschieberung der Druckkammer 14 während des Nachladens des Zuführungskanals 9, dem Hydraulikzylinder 23 mit dem dazugehörigen Ventil 2 und aus dem Schmierstoffspeicher 29 mit dem aufladbaren Energiespeicherelement 30
Claims (20)
- Verfahren zum Umformen und/oder Beschichten von strangförmigem metallischem Umformgut mit festen bis pastenartigen Schmierstoffen, bei dem das strangförmige metallische Umformgut (19) durch mindestens eine Einlaufdüse (20) in eine Druckkammer (14) läuft und diese durch mindestens eine Auslaufdüse (21) verläßt, in die Druckkammer (14) fester bis pastenartiger Schmierstoff (18;28) eingebracht wird, auf den sich in der Druckkammer (14) befindliche feste bis pastenartige Schmierstoff (18;28) extern ein Druck aufgebracht wird, wobei die angewandte Druck-Temperatur-Kombination immer außerhalb des Bereiches der Druck-Temperatur-Kombinationen für die Verflüssigung des eingesetzten Schmierstoffes (18;28) liegt, und der Druck in der Druckkammer (14) eingestellt und/oder geregelt wird.
- Verfahren nach Anspruch 1, bei dem das Verfahren einmal oder mehrmals in einem mehrstufigen Umformprozeß eingesetzt wird.
- Verfahren nach Anspruch 1 oder 2, bei dem unmittelbar nach der Unterbrechung des Umformprozesses eine kurzzeitige Umkehr der zwischen Umformgut (19) und Umformwerkzeug (20;21) während des Umformprozesses vorhandenen Relativbewegung vorgenommen wird und/oder der auf den Schmierstoff (18;28) aufgebrachte Druck abgesenkt wird.
- Verfahren nach Anspruch 1, bei dem ein mit einer Reaktionsschicht behaftetes Umformgut (19) umgeformt wird, wobei die sich während des Umformens vom Umformgut (19) lösendes Reaktionsschicht in den Schmierstoff auf dem Umformgut eingebettet und nachfolgend gemeinsam mit dem Schmierstoff entfernt wird.
- Verfahren nach Anspruch 1, bei dem durch eine Schmierstoffzuführung (9) Schmierstoff (18;28) in die Druckkammer (14) eingebracht wird und dabei in einem gegenüberliegend angebrachten Schmierstoffspeicher (29) Schmierstoff gespeichert wird, wobei dadurch ein aufladbares Energiespeicherelement (30) aufgeladen wird, und während des Nachladens der Schmierstoffzuführung (9) das Energiespeicherelement (30) entladen wird, wodurch der gespeicherte Schmierstoff in die Druckkammer (14) gedrückt wird.
- Verfahren nach Anspruch 1, bei dem das strangförmige metallische Umformgut (19) nach der Druckkammer (14) durch eine anschließende hydrodynamische Druckdüse zur Beschichtung und Umformung oder durch eine anschließende Kammer zur Beschichtung läuft.
- Verfahren nach Anspruch 1 und 6, bei der das strangförmige metallische Umformgut (19) durch mehrere nachgeschaltete hydrodynamische Druckdüsen zur Beschichtung und Umformung oder mehrere nachgeschaltete Kammern zur Beschichtung läuft.
- Verfahren nach Anspruch 1, bei dem der feste Schmierstoff (18;28) als Pulver oder Formkörper, vorzugsweise als Preßling oder Pellet oder Granulat, in die Druckkammer (14) eingebracht wird.
- Verfahren nach Anspruch 1, bei dem das Umformgut in der Druckkammer (14) durch eine gelenkte Strömung des eingebrachten Schmierstoffes (18;28) zentrisch geführt wird.
- Verfahren nach Anspruch 1, bei dem erwärmtes Umformgut (19) der Druckkammer (14) zugeführt wird.
- Verfahren nach Anspruch 1, bei dem der Schmierstoff (18;28) erwärmt und/oder gekühlt wird.
- Vorrichtung zum Umformen und/oder Beschichten von strangförmigem metallischem Umformgut (19) mit festen bis pastenartigen Schmierstoffen (18;28), enthaltend eine Druckkammer (14) zur Aufnahme eines festen bis pastenartigen Schmierstoffs, mindestens eine Einlaufdüse (20) und mindestens eine Auslaufdüse (21), durch die das Umformgut (19) läuft, mindestens eine Zuführung (8;9) zur Einbringung des Schmierstoffs (18;28), mindestens eine Apparatur (1;2;3;4;5;10;11;12;13) zur Druckerzeugung auf den in die Druckkammer (14) einbringbaren festen bis pastenartigen Schmierstoff (18;28) sowie mindestens eine Apparatur (1;17) zur Einstellung und/oder Regelung dieses Druckes auf einen Wert unterhalb des Bereichs der Druck-Temperatur-Kombination, bei der eine Verflüssigung des festen bis pastenförmigen Schmierstoffs eintritt.
- Vorrichtung nach Anspruch 12, bei der im Falle der Umformung nur die Auslaufdüse (21) als Ziehstein ausgebildet ist.
- Vorrichtung nach Anspruch 12, bei der zwei gegenüberliegende Schmierstoffzuführungen (8; 9) angebracht sind, die festen bis pastenartigen Schmierstoff (18;28) in die Druckkammer (14) einbringen, wobei der feste Schmierstoff als Pulver oder Formkörper, vorzugsweise als Preßlinge oder Pellets oder Granulat verwendet ist.
- Vorrichtung nach Anspruch 12, bei der die Druckerzeugung hydraulisch erfolgt.
- Vorrichtung nach Anspruch 12, bei der ein Stromteiler (22) den Schmierstoffstrom vor Erreichen des metallischen Umformgutes (19) in der Druckkammer (14) teilt.
- Vorrichtung nach Anspruch 12, bei der eine Schmierstoffzuführung (9) und gegenüberliegend ein Schmierstoffspeicher (29) mit einem aufladbaren Energiespeicherelement (30) angebracht sind, wobei der Schmierstoffspeicher (29) Schmiermittel speichert und dabei das Energiespeicherelement (30) auflädt und beim Nachladen von Schmierstoff in der Schmierstoffzuführung (9) die Entladung des Energiespeicherelementes (30) den gespeicherten Schmierstoff in die Druckkammer (14) drückt.
- Vorrichtung nach Anspruch 12, bei der die Auslaufdüse (21) die Einlaufdüse einer nachgeschalteten hydrodynamischen Druckdüse zur Beschichtung und Umformung oder einer nachgeschalteten Kammer zur Beschichtung ist.
- Vorrichtung nach Anspruch 12 und 18, bei der mehrere nachgeschaltete hydrodynamische Druckdüsen zur Beschichtung und Umformung oder mehrere nachgeschaltete Kammern zur Beschichtung vorhanden sind.
- Vorrichtung nach Anspruch 12, bei der Umformwerkzeuge mit einer Oberflächenhärte von < 60 HRC anwendbar sind.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP1994/003740 WO1996014946A1 (de) | 1994-11-11 | 1994-11-11 | Verfahren und vorrichtung zum umformen und/oder beschichten von strangförmigem metallischem umformgut |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0790869A1 EP0790869A1 (de) | 1997-08-27 |
EP0790869B1 true EP0790869B1 (de) | 1999-07-07 |
Family
ID=8165912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900713A Expired - Lifetime EP0790869B1 (de) | 1994-11-11 | 1994-11-11 | Verfahren und vorrichtung zum umformen und/oder beschichten von strangförmigem metallischem umformgut |
Country Status (18)
Country | Link |
---|---|
US (1) | US5865052A (de) |
EP (1) | EP0790869B1 (de) |
JP (1) | JPH10508540A (de) |
KR (1) | KR970706920A (de) |
CN (1) | CN1167452A (de) |
AT (1) | ATE181858T1 (de) |
AU (1) | AU695221B2 (de) |
BR (1) | BR9408633A (de) |
CA (1) | CA2204617A1 (de) |
CZ (1) | CZ289676B6 (de) |
DE (2) | DE4481387D2 (de) |
DK (1) | DK0790869T3 (de) |
ES (1) | ES2136273T3 (de) |
FI (1) | FI972000A0 (de) |
GR (1) | GR3031348T3 (de) |
PL (1) | PL175262B1 (de) |
RU (1) | RU2136420C1 (de) |
WO (1) | WO1996014946A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3326499B2 (ja) * | 1998-02-02 | 2002-09-24 | ベカルト ツェー エム テー エム ゲーエムベーハー | 積層複合線材のハイドロダイナミック伸線加工方法及び積層複合線材のハイドロダイナミック伸線加工用多段伸線機 |
DE19810342C2 (de) * | 1998-02-02 | 2001-06-07 | C M T M Dr Mueller Verfahrenst | Verfahren zur hydrodynamischen Ziehumformung von Schichtverbunddraht sowie Mehrfach-Ziehanlage |
DE19817088C2 (de) * | 1998-04-17 | 2000-02-17 | Ecoform Umformtechnik Gmbh | Verfahren und Vorrichtung zum Beschichten und Umformen von strangförmigem metallischem Umformgut mittels Ziehen |
CN101708570B (zh) * | 2009-12-14 | 2012-05-23 | 武汉铁锚焊接材料股份有限公司 | 药芯焊丝拉拔制造中的表面处理方法及装置 |
CN102847740B (zh) * | 2012-09-28 | 2014-12-10 | 李维生 | 主动螺旋挤压式强迫润滑拉拔模盒 |
EP3191237A4 (de) * | 2014-09-12 | 2018-06-06 | Imerys Graphite & Carbon Switzerland S.A. | Verbesserungen an verfahren und systemen mit schmierungsbedarf |
CN108435811A (zh) * | 2018-03-29 | 2018-08-24 | 西北有色金属研究院 | 一种金属超细丝拉拔装置及可降解金属超细丝拉拔方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5756163B2 (de) * | 1971-12-27 | 1982-11-29 | ||
AT353737B (de) * | 1976-09-16 | 1979-11-26 | Langenecker Bertwin Dr | Verfahren und vorrichtung zum ziehen von draehten, stangen, rohren u.dgl. |
GB2033810B (en) * | 1978-10-27 | 1982-09-08 | Bicc Ltd | Lubricating extrusion feedstock |
DD147209A1 (de) * | 1978-12-21 | 1981-03-25 | Harri Weinhold | Verfahren und vorrichtung zum aufbringen von schmiermitteln |
US4553416A (en) * | 1983-06-20 | 1985-11-19 | Sumitomo Metal Industries, Ltd. | Dry type continuous wire drawing process |
SU1186314A1 (ru) * | 1984-01-26 | 1985-10-23 | Proizv Ob Zhdanovtyazhmash | Устройство для волочения проволоки в режиме гидродинамического трения |
GB8507093D0 (en) * | 1985-03-19 | 1985-04-24 | Radyne Ltd | Coating billets for forging |
JPH01233007A (ja) * | 1988-03-10 | 1989-09-18 | Fujikura Ltd | 複合線の製造方法 |
-
1994
- 1994-11-11 KR KR1019970702777A patent/KR970706920A/ko not_active Application Discontinuation
- 1994-11-11 BR BR9408633A patent/BR9408633A/pt not_active IP Right Cessation
- 1994-11-11 DK DK95900713T patent/DK0790869T3/da active
- 1994-11-11 EP EP95900713A patent/EP0790869B1/de not_active Expired - Lifetime
- 1994-11-11 CN CN94195195A patent/CN1167452A/zh active Pending
- 1994-11-11 AU AU81422/94A patent/AU695221B2/en not_active Ceased
- 1994-11-11 WO PCT/EP1994/003740 patent/WO1996014946A1/de not_active Application Discontinuation
- 1994-11-11 DE DE4481387T patent/DE4481387D2/de not_active Expired - Fee Related
- 1994-11-11 AT AT95900713T patent/ATE181858T1/de not_active IP Right Cessation
- 1994-11-11 RU RU97110121/02A patent/RU2136420C1/ru not_active IP Right Cessation
- 1994-11-11 CA CA002204617A patent/CA2204617A1/en not_active Abandoned
- 1994-11-11 PL PL94320081A patent/PL175262B1/pl unknown
- 1994-11-11 JP JP8515656A patent/JPH10508540A/ja active Pending
- 1994-11-11 DE DE59408479T patent/DE59408479D1/de not_active Expired - Fee Related
- 1994-11-11 US US08/836,215 patent/US5865052A/en not_active Expired - Fee Related
- 1994-11-11 ES ES95900713T patent/ES2136273T3/es not_active Expired - Lifetime
- 1994-11-11 CZ CZ19971395A patent/CZ289676B6/cs not_active IP Right Cessation
-
1997
- 1997-05-09 FI FI972000A patent/FI972000A0/fi unknown
-
1999
- 1999-09-29 GR GR990402440T patent/GR3031348T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
DK0790869T3 (da) | 2000-02-07 |
CZ289676B6 (cs) | 2002-03-13 |
DE4481387D2 (de) | 1998-10-01 |
AU8142294A (en) | 1996-06-06 |
US5865052A (en) | 1999-02-02 |
PL320081A1 (en) | 1997-09-15 |
JPH10508540A (ja) | 1998-08-25 |
WO1996014946A1 (de) | 1996-05-23 |
GR3031348T3 (en) | 2000-01-31 |
ATE181858T1 (de) | 1999-07-15 |
FI972000A (fi) | 1997-05-09 |
ES2136273T3 (es) | 1999-11-16 |
RU2136420C1 (ru) | 1999-09-10 |
CN1167452A (zh) | 1997-12-10 |
DE59408479D1 (de) | 1999-08-12 |
FI972000A0 (fi) | 1997-05-09 |
BR9408633A (pt) | 1997-09-30 |
KR970706920A (ko) | 1997-12-01 |
CZ139597A3 (cs) | 1999-09-15 |
EP0790869A1 (de) | 1997-08-27 |
PL175262B1 (pl) | 1998-12-31 |
CA2204617A1 (en) | 1996-05-23 |
AU695221B2 (en) | 1998-08-06 |
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