EP2929950A1 - Machine de tréfilage et procédé de tréfilage - Google Patents

Machine de tréfilage et procédé de tréfilage Download PDF

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Publication number
EP2929950A1
EP2929950A1 EP15162590.2A EP15162590A EP2929950A1 EP 2929950 A1 EP2929950 A1 EP 2929950A1 EP 15162590 A EP15162590 A EP 15162590A EP 2929950 A1 EP2929950 A1 EP 2929950A1
Authority
EP
European Patent Office
Prior art keywords
wire
nozzle
drawing machine
conveying direction
rinsing
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
EP15162590.2A
Other languages
German (de)
English (en)
Other versions
EP2929950B1 (fr
Inventor
Klaus Czaputa
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.)
P & F Maschinenbau GmbH
P & F Maschb GmbH
Original Assignee
P & F Maschinenbau GmbH
P & F Maschb 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 P & F Maschinenbau GmbH, P & F Maschb GmbH filed Critical P & F Maschinenbau GmbH
Publication of EP2929950A1 publication Critical patent/EP2929950A1/fr
Application granted granted Critical
Publication of EP2929950B1 publication Critical patent/EP2929950B1/fr
Active 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
    • 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
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes 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
    • 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
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus

Definitions

  • the invention relates to a wire drawing machine for producing a drawn wire, in particular a drawn aluminum wire, with a housing, wherein at least one die is arranged in the interior of the housing, wherein in the region of a wire outlet opening of the housing in the wire conveying direction after all dies a Ab faceddüse is arranged, which for Producing a directed substantially against the wire conveying direction jet of a rinsing fluid is arranged for rinsing the wire, and a method for producing a drawn wire in such a wire drawing machine.
  • the invention relates to a wire drawing machine integrated in an enamel wire system, that is, wherein the wire drawing machine is a part of the enamel wire system.
  • a thin wire with a cylindrical cross-section is first drawn from a wire with a relatively large cross-section in several steps, which is then coated.
  • the enamelled wire basically passes through the following main components: the removal device of the preferred wire, the drawing device with a wire drawing machine to realize a required bare wire, the annealing to recrystallize the cold-formed bare wire, the lacquerware for applying the lacquer film to the bare wire, the Einbrennschacht in baking oven for drying and hardening of the paint, the cooling system for controlling the wire temperature on the lacquerware and the winder for removing the finished enameled wire.
  • the process conditions in the baking oven during paint drying ie paint composition, solvent content of the circulating air, process air or wire temperature, drawing speed and flow within the furnace, are the decisive factors influencing the coating quality of an enameled wire.
  • the so-called preferred wire with a correspondingly large raw wire diameter is first taken from a reservoir and fed via guide rollers or deflection rollers of the drawing system with one or more wire drawing machines.
  • Such drawing machines usually have individually driven drawing disks over which the preferred wire is guided or tensioned. Due to the single drive of the drawing discs, slippage, which could damage the wire surface, can be minimized or even almost completely prevented.
  • Between the drawing discs there are drawing blocks with conically shaped drawing stones, whose perforated cores are usually made of polycrystalline synthetic diamonds. The hole cross-sections of the cores decrease as the number of drawing heads increases, as a result of which the wire body is drawn and deformed or pulled through successively as it passes through the preferred wire. Due to the mechanical deformation of the wire in the drawing cones correspondingly low EnddrahtStarn can be realized.
  • the force with which a wire is pulled through the dies is applied via the drawing disks respectively behind the dies.
  • the transmission of this tensile force from the pulley to the wire is done by friction.
  • the frictional force depends on the material of the pulley and the wire, the condition and the geometry of the wire support surface, the number of wire wraps, the slip and the lubricant used.
  • the dies are basically intended to enable high wire throughput speeds (high drawing powers) and to provide long service lives.
  • the quality of the surface and the roundness of the drawn wire must always be within the permissible tolerances.
  • the drawing cone itself is subject to high frictional pressure. The internal friction created during forming in the wire and the external friction in the wire Drawing cone therefore cause a strong warming.
  • a high-pressure flushing system with liquid drawing agent ensures intensive lubrication and cooling of the wire as well as the drawing dies.
  • the drawing agent leads from the drawing machine caused by abrasion tinsel and other impurities.
  • the liquid drawing agent / flake mixture is then continuously cleaned via a filter system (eg with a drum belt filter), which is part of a drawing agent circuit.
  • a filter system eg with a drum belt filter
  • the DE 2 434 109 A1 shows a lubricating nozzle for generating a directed against the wire conveying direction jet for lubrication and cooling of the continuous wire.
  • the nozzle opening of the lubricating nozzle is accordingly spaced from the wire and arranged in the region of a drain opening to allow lateral outflow of the fluid.
  • the invention provides that in a wire drawing machine of the type mentioned the Ab Hughesdüse is set up for non-contact storage of the wire. Accordingly, the above object is achieved in a method of the type mentioned in that the wire is stored without contact in the rinsing nozzle.
  • the wire is eg stored in a floating manner on a rinsing fluid cushion formed by the jet in the rinsing nozzle and the wire run is thus stabilized by the rinsing nozzle.
  • the beam can thereby completely surround the wire or be guided all around parallel to a longitudinal axis of the wire and along the wire surface.
  • the flushing fluid is preferably under high pressure, so that the jet has a high jet pressure.
  • the wire surface therefore advantageously has, after passing through the rinsing nozzle in addition to the non-cleanable, firmly pressed into the wire residues, only the rinsing fluid with particularly fine-grained bauble on; coarse flake particles remain in the drawing machine and do not get between wire and one of the drawing machine usually downstream Ausziehitch so that there caused damage to the wire is avoided.
  • damage to the wire through the cleaning process is avoided. Any transverse forces acting on the wire are thereby completely avoided, so that no harmful vibrations of the wire are excited.
  • the wire after the last die is guided without contact, ie in particular without further stabilization bearing, from the wire drawing machine.
  • the flushing fluid for cooling the Wire is used drawing agent. If the same liquid is used as rinsing fluid and as drawing agent, the wire drawing machine does not require a new rinsing cycle for cleaning after the last drawing die, ie the wire drawing machine has only one rinsing cycle.
  • the Ab Rushdüse is to generate the beam with liquid and hermaphroditic drawing agent, ie with filtered or purified drawing agent liquid from the drawing machine system itself, supplied.
  • the removed by the jet of Ab frustrateddüse baubles is preferably introduced into the drawing agent circuit of the drawing machine. That is, the exiting from the Abs Hughesdüse drawing with the wire-cleaned particles remains in the drawing machine housing and runs there on the ground together with the drawing agent of previous dies in the cleaning or filter circuit.
  • a blow-off nozzle is arranged for producing an air jet directed essentially against the wire conveying direction for cleaning the wire of remaining rinsing fluid. Accordingly, it is also advantageous in the proposed method, if after flushing the wire remaining on the wire rinsing fluid is removed by means of a counter to the wire conveying direction directed compressed air jet from the wire.
  • the Ab faceddüse can be arranged offset in this case from the wire outlet opening into the interior of the housing.
  • the blower nozzle is operated with compressed air and blows compressed air against the wire movement around along the wire surface and parallel to the wire.
  • blow-off nozzle With regard to the blow-off nozzle, it has proved to be advantageous if it is arranged or seated directly in the wire outlet opening of the housing, so that the wire outlet opening is dynamically sealed by the air jet of the blow-off nozzle.
  • the flushing fluid in particular the drawing agent, is enclosed in the housing in a particularly simple way, i. not discharged from the case.
  • the rinsing nozzle and / or the blow-off nozzle is or are an annular nozzle surrounding the wire and directed against the wire conveying direction. That the respective nozzle has a nozzle opening surrounding the wire in the entire circumference, from which the jet emerges.
  • the nozzle has one of the annular nozzle openings substantially parallel or slight angled towards the longitudinal axis of the wire tapered to the nozzle opening nozzle channel. This type of nozzle allows homogeneous and complete cleaning of the wire even with very small wire diameters (e.g., up to 0.25 mm) and centered support of the wire in a wire opening of the nozzle within and concentric with the annular nozzle opening.
  • Endziehstein is offset from the wire outlet opening into the interior of the housing.
  • the Endziehstein, ie the last and narrowest die of the wire drawing machine is thus arranged in the wire conveying direction immediately in front of the rinsing nozzle, so that no deflection rollers between the Endziehstein and Ab faceddüse are arranged.
  • Endziehstein, the Ab Hughesdüse and possibly the Abblasdüse are aligned in a line so that the emerging from the Endziehstein or extended wire exactly through the center the rinsing nozzle and optionally the blow-off nozzle is guided.
  • the cross section of a nozzle opening of the rinsing nozzle and / or the blow-off nozzle for the inlet of a rinsing fluid or an air jet to the wire is adjustable.
  • the nozzle opening for the feed is inside the nozzle and is directed substantially (at an angle) against a wire conveyed through the nozzle.
  • Different drawing machine configurations inlet and outlet diameter of the bare wire, wire metal, wire diameter, wire speed, drawing die type, number of drawing dies, type of drawing medium, fat content of the drawing agent, etc. lead to the formation of different tinsel amounts in different size distributions.
  • the nozzle opening is formed between a nozzle body with an at least partially substantially conically tapering towards the wire conveying direction interior space for the transport of a rinsing fluid or an air jet and a guide member arranged at least partially in the interior, wherein the guide member is arranged adjustable relative to the nozzle body parallel to the wire conveying direction.
  • the guide part can be displaceable parallel to the wire conveying direction relative to the nozzle body.
  • a reliable and accurate setting of the nozzle opening can be achieved if the guide member has an external thread with which it is screwed in an internal thread of the nozzle body about an axis parallel to the wire conveying direction.
  • the nozzle opening can be adjusted by turning the guide member in the nozzle body.
  • a lock nut is screwed onto the external thread of the guide member, by means of which the guide member fixed to the nozzle body is.
  • the guide member is tightened by tightening the lock nut substantially between the nozzle body and lock nut, so that a twisting of the guide member is counteracted.
  • Fig. 1 shows a wire drawing machine 1, more precisely a so-called Inlineziehmaschine, with a housing 2 and a wire pre-cleaning system 3.
  • a wire drawing machine 1, more precisely a so-called Inlineziehmaschine
  • a housing 2 Inlineziehmaschine
  • a wire pre-cleaning system 3 In the housing 2, a plurality of dies 4 or drawing blocks are arranged, with which the wire (not shown) to the desired shape or the desired wire cross section is deformed. Between the dies 4, the wire is guided over each individually driven pulleys 5.
  • the cleaning system 3 shown here is to rid the wire after passing the last die 6 (also called Endziehstein) of tinsel without liquid drawing agent from the wire drawing machine 1 is discharged.
  • the Endziehstein 6 is on a special holder 7 fixed in the housing 2, so that the Endziehstein 6 not in the context of the housing 2 (also called drawing cabinet) sits, but offset inwardly in the housing 2 itself is placed.
  • a Ab faceddüse 9 is arranged, which applies correspondingly high pressure jets of liquid and tinsel-free drawing agent on the wire surface against the wire movement, ie reversed to the wire conveying direction.
  • the resulting high shear causes an efficient removal, especially of coarse-grained tinsel from the wire surface, which is automatically introduced into a drawing agent circuit (not shown) of the wire drawing machine 1.
  • the wire surface has after passing through the Ab Kirse 9 next to the non-cleanable, firmly pressed-drawing agent residues, only more liquid drawing agent with a particularly fine-grained tinsel.
  • the Ab Rushdüse 9 is a Abblasdüse 10 with compressed air connected after (see. Fig. 2 ), which sits directly in the wire outlet opening 8 of the housing frame.
  • the blow-off nozzle 10 blows compressed air against the wire movement.
  • the massive shear flow achieved thereby not only removes any bauble / drawing agent mixture remaining on the wire after the rinsing nozzle 9 and feeds it to the main drawing agent circuit of the wire drawing machine 1, but also seals the wire outlet opening 8 of the wire drawing machine 1 dynamically.
  • the particles cleaned off with the drawing agent jet generated by the rinsing nozzle 9 pass into a main drawing agent circuit of the wire drawing machine 1, whereby no new rinsing cycle has to be installed.
  • the blown into the wire drawing machine 1 due to the air jet generated by the blower 10 air can escape through vents 11 from the housing 2.
  • the two nozzles 9, 10 are arranged substantially centered on a straight line defined by a longitudinal axis of the wire 12, ie, the center of a wire channel 13 of the nozzle 9, 10 is in each case on the straight line.
  • the two nozzles 9, 10 each have a nozzle body 14, which surrounds the wire channel 13 for the passage of the wire 12.
  • In the nozzle body 14 is a conically tapered against the wire conveying direction 15 interior 16 is formed.
  • a beak-shaped guide member 17 is received, the inside of which forms a portion of the wire channel 13 and the outside of which - conically tapered against the wire conveying direction 15 - comparable to the interior 16, but slower, ie at a shallower angles against the wire channel 13.
  • the inner space 16 is sealed by the guide part 17.
  • the interior 16 has an inlet opening 18, to which a pressure valve 19 is connected. The introduced through the pressure valve 19 in the nozzle 9, 10 fluid, eg liquid drawing agent or compressed air, distributed in the interior 16 outside the guide member 17 and is pressed under pressure through an annular nozzle opening 20 between the guide member 17 and the nozzle body 14.
  • the nozzle opening 20 has a ring cross-sectional area for the flow of the pulling means, so that the fluid in each case in an annular, the wire 12 substantially concentrically and uniformly surrounding beam exiting the interior 16, which beam continues along the wire 12 and for the most part exits through a front wire opening 21 of the nozzle 9, 10 from the nozzle 9, 10.
  • the compressed air introduced through the pressure valve 19 (see air flow along the arrows 24) is directed against the wire 12 through the annular nozzle opening 20 against the wire conveying direction 15 and blows any liquid drawing agent residues to the front 23 and through the wire opening 21 from the Abblasdüse 10.
  • the emerging from the Abblasdüse 10 air flow or the compressed air jet forms at the In the wire conveying direction 15 after the blow-off nozzle 10, the wire 12 is usually taken up by a pulley (not shown) and pulled out of the wire drawing machine 1 (see FIG. Fig. 1 ).
  • Fig. 3 shows the rinsing nozzle 9 according to Fig. 2 more in detail.
  • the guide member 17 is axially, ie parallel to the wire conveying direction 15, relative to the nozzle body 14 slidably, which is provided by a provided in a cylindrical portion of the guide member 17 external thread 26 which is screwed into a provided in the nozzle body 14 internal thread 27.
  • the guide member 17 is thus axially displaceable by turning with seat in the internal thread 27 of the nozzle body 14 so that between the nozzle body 14 and guide member 17 different ring cross-sectional areas are released for the nozzle opening 20 and the cross section of the nozzle opening 20 is thus adjustable.
  • a counter nut 28 with an internal thread for seating on the external thread 26 of the guide member 17 is an operating aid for rotating the guide member 17 without having to touch its external thread 26 by hand. By tightening the lock nut 28, the guide member 17 can be fixed in a certain axial position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
EP15162590.2A 2014-04-07 2015-04-07 Machine de tréfilage et procédé de tréfilage Active EP2929950B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50264/2014A AT515603B1 (de) 2014-04-07 2014-04-07 Drahtziehmaschine und Verfahren zur Herstellung eines gezogenen Drahtes

Publications (2)

Publication Number Publication Date
EP2929950A1 true EP2929950A1 (fr) 2015-10-14
EP2929950B1 EP2929950B1 (fr) 2019-12-04

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AT (1) AT515603B1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772523A (zh) * 2016-05-12 2016-07-20 遵义汇航机电有限公司 一种直进式拉丝机
CN108994094A (zh) * 2018-07-05 2018-12-14 嘉兴维特拉电气科技有限公司 一种电动按摩椅用直进式拉丝机
CN109277420A (zh) * 2018-11-14 2019-01-29 朱夼 一种制造电缆用全自动铜线拉丝装置
CN109500115A (zh) * 2019-01-22 2019-03-22 泰州和润自动化科技有限公司 拉丝机及拉丝方法
CN109604357A (zh) * 2019-01-08 2019-04-12 重庆市润金新材料研究院有限公司 一种键合金丝拉丝装置
CN109834120A (zh) * 2019-02-26 2019-06-04 宁夏中能恒力钢丝绳有限公司 一种异型钢丝生产方法
DE102018000370A1 (de) 2018-01-18 2019-07-18 Audi Ag Verfahren zum Herstellen eines Wicklungsträgers
CN112058927A (zh) * 2020-09-03 2020-12-11 浙江明铖金属科技有限公司 一种高性能金属线材精细加工的拉丝装置
CN112246895A (zh) * 2020-10-20 2021-01-22 芜湖巨科电气设备有限公司 一种铜丝多道分步拉丝生产线
CN113070355A (zh) * 2021-02-10 2021-07-06 江苏海川光电新材料有限公司 一种用于光伏发电的金属微拉设备
CN114226476A (zh) * 2021-11-27 2022-03-25 杭州普天乐电缆有限公司 一种金属拉丝机
CN114713649A (zh) * 2022-03-31 2022-07-08 大连环新新材料科技有限公司 一种双道次正反向多遍拉拔控制线材抗拉强度的方法及装置
CN115971272A (zh) * 2022-11-18 2023-04-18 河南恒创能科金属制品有限公司 金刚砂线母线水箱拉丝机及其使用方法
CN116713336A (zh) * 2023-07-10 2023-09-08 大征电线有限责任公司 一种防绞线的铝线拉丝机安全保护装置
CN116727472A (zh) * 2023-08-15 2023-09-12 常州市美特仑线缆有限公司 一种金属线拉拔装置及其工作方法
CN117564117A (zh) * 2024-01-16 2024-02-20 江苏中天云箭科技有限公司 一种电缆生产铜丝拉丝退火装置

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DE2434109A1 (de) 1973-07-23 1975-02-06 Meccanica Di Precisione Spa Vorrichtung zur fluessigkeitsbehandlung, insbesondere zur kuehlung oder schmierung von laufendem draht
EP0011612A1 (fr) * 1978-11-14 1980-05-28 RISTA-Drahtwerk, Hufnagl & Co. Gesellschaft m.b.H. Dispositif pour formage à froid de fil métallique
JPS6061115A (ja) * 1983-09-12 1985-04-08 Sumitomo Metal Ind Ltd 冷却伸線装置
EP0523022A2 (fr) * 1991-07-01 1993-01-13 Candor Sweden Aktiebolag Dispositif de traitement d'une surface
JPH05138244A (ja) * 1991-11-21 1993-06-01 Sumitomo Metal Mining Co Ltd 極細線線引き装置及び極細線洗浄方法
DE202004013220U1 (de) * 2004-08-24 2006-01-05 Maschinenfabrik Niehoff Gmbh & Co Kg Reinigungsvorrichtung für langgestreckte Güter

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DE10058369C1 (de) * 2000-11-24 2002-02-14 Rainer Menge Drahtkühleinrichtung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434109A1 (de) 1973-07-23 1975-02-06 Meccanica Di Precisione Spa Vorrichtung zur fluessigkeitsbehandlung, insbesondere zur kuehlung oder schmierung von laufendem draht
EP0011612A1 (fr) * 1978-11-14 1980-05-28 RISTA-Drahtwerk, Hufnagl & Co. Gesellschaft m.b.H. Dispositif pour formage à froid de fil métallique
JPS6061115A (ja) * 1983-09-12 1985-04-08 Sumitomo Metal Ind Ltd 冷却伸線装置
EP0523022A2 (fr) * 1991-07-01 1993-01-13 Candor Sweden Aktiebolag Dispositif de traitement d'une surface
JPH05138244A (ja) * 1991-11-21 1993-06-01 Sumitomo Metal Mining Co Ltd 極細線線引き装置及び極細線洗浄方法
DE202004013220U1 (de) * 2004-08-24 2006-01-05 Maschinenfabrik Niehoff Gmbh & Co Kg Reinigungsvorrichtung für langgestreckte Güter

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772523B (zh) * 2016-05-12 2017-12-08 遵义汇航机电有限公司 一种直进式拉丝机
CN105772523A (zh) * 2016-05-12 2016-07-20 遵义汇航机电有限公司 一种直进式拉丝机
DE102018000370A1 (de) 2018-01-18 2019-07-18 Audi Ag Verfahren zum Herstellen eines Wicklungsträgers
CN108994094A (zh) * 2018-07-05 2018-12-14 嘉兴维特拉电气科技有限公司 一种电动按摩椅用直进式拉丝机
CN109277420A (zh) * 2018-11-14 2019-01-29 朱夼 一种制造电缆用全自动铜线拉丝装置
CN109604357A (zh) * 2019-01-08 2019-04-12 重庆市润金新材料研究院有限公司 一种键合金丝拉丝装置
CN109500115A (zh) * 2019-01-22 2019-03-22 泰州和润自动化科技有限公司 拉丝机及拉丝方法
CN109834120A (zh) * 2019-02-26 2019-06-04 宁夏中能恒力钢丝绳有限公司 一种异型钢丝生产方法
CN112058927A (zh) * 2020-09-03 2020-12-11 浙江明铖金属科技有限公司 一种高性能金属线材精细加工的拉丝装置
CN112058927B (zh) * 2020-09-03 2024-02-06 浙江明铖金属科技有限公司 一种高性能金属线材精细加工的拉丝装置
CN112246895A (zh) * 2020-10-20 2021-01-22 芜湖巨科电气设备有限公司 一种铜丝多道分步拉丝生产线
CN112246895B (zh) * 2020-10-20 2022-07-22 芜湖巨科电气设备有限公司 一种铜丝多道分步拉丝生产线
CN113070355A (zh) * 2021-02-10 2021-07-06 江苏海川光电新材料有限公司 一种用于光伏发电的金属微拉设备
CN114226476A (zh) * 2021-11-27 2022-03-25 杭州普天乐电缆有限公司 一种金属拉丝机
CN114226476B (zh) * 2021-11-27 2024-02-02 杭州普天乐电缆有限公司 一种金属拉丝机
CN114713649A (zh) * 2022-03-31 2022-07-08 大连环新新材料科技有限公司 一种双道次正反向多遍拉拔控制线材抗拉强度的方法及装置
CN114713649B (zh) * 2022-03-31 2023-09-29 大连环新新材料科技有限公司 一种双道次正反向多遍拉拔控制线材抗拉强度的方法及装置
CN115971272B (zh) * 2022-11-18 2023-10-20 河南恒创能科金属制品有限公司 金刚砂线母线水箱拉丝机及其使用方法
CN115971272A (zh) * 2022-11-18 2023-04-18 河南恒创能科金属制品有限公司 金刚砂线母线水箱拉丝机及其使用方法
CN116713336A (zh) * 2023-07-10 2023-09-08 大征电线有限责任公司 一种防绞线的铝线拉丝机安全保护装置
CN116713336B (zh) * 2023-07-10 2024-02-02 大征电线有限责任公司 一种防绞线的铝线拉丝机安全保护装置
CN116727472A (zh) * 2023-08-15 2023-09-12 常州市美特仑线缆有限公司 一种金属线拉拔装置及其工作方法
CN116727472B (zh) * 2023-08-15 2023-10-13 常州市美特仑线缆有限公司 一种金属线拉拔装置及其工作方法
CN117564117A (zh) * 2024-01-16 2024-02-20 江苏中天云箭科技有限公司 一种电缆生产铜丝拉丝退火装置
CN117564117B (zh) * 2024-01-16 2024-03-26 江苏中天云箭科技有限公司 一种电缆生产铜丝拉丝退火装置

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