EP0406417A1 - Installation de production continue de fil metallique a partir de fil d'ebauche - Google Patents

Installation de production continue de fil metallique a partir de fil d'ebauche Download PDF

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Publication number
EP0406417A1
EP0406417A1 EP89902217A EP89902217A EP0406417A1 EP 0406417 A1 EP0406417 A1 EP 0406417A1 EP 89902217 A EP89902217 A EP 89902217A EP 89902217 A EP89902217 A EP 89902217A EP 0406417 A1 EP0406417 A1 EP 0406417A1
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EP
European Patent Office
Prior art keywords
electrolyte
wire rod
plasmatron
wire
electrolytic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89902217A
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German (de)
English (en)
Other versions
EP0406417A4 (en
Inventor
Vladimir Izrailevich Dunaevsky
Anatoly Yakovlevich Ul. Marata 5-59 Zanin
Pavel Mikhailovich Kovalenko
Mikhail Ivanovich Serdjuk
Eduard Petrovich Ul. Gvardeiskaya 30-5 Putilov
Vladimir Porfirievich Lemesh
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.)
Slavyansky Filial Vsesojuznogo Nauchno-Issledovatelskogo I Proektno-Konstruktorskogo Inst Met Mash Imeni Ai Tselikova
Original Assignee
Slavyansky Filial Vsesojuznogo Nauchno-Issledovatelskogo I Proektno-Konstruktorskogo Inst Met Mash Imeni Ai Tselikova
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Application filed by Slavyansky Filial Vsesojuznogo Nauchno-Issledovatelskogo I Proektno-Konstruktorskogo Inst Met Mash Imeni Ai Tselikova filed Critical Slavyansky Filial Vsesojuznogo Nauchno-Issledovatelskogo I Proektno-Konstruktorskogo Inst Met Mash Imeni Ai Tselikova
Publication of EP0406417A1 publication Critical patent/EP0406417A1/fr
Publication of EP0406417A4 publication Critical patent/EP0406417A4/de
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Definitions

  • the present invention relates to the electrolytic treatment of rolling stock and relates to an aggregate for continuous wire production from wire rod.
  • the present invention can be used in metallurgy, in the cable industry and in the hardware industry. Wire production by drawing from wire rod, the surface of which is covered with scale, can be used.
  • the present invention can be used to make copper wire to which a polymer or varnish coating is subsequently applied.
  • the equipment for continuous pickling of copper wire rod includes, in series, a pickling bath, facilities for washing the products and a neutralization bath, above which one. endless chain conveyor is running.
  • the wire rod roll. len are hung on metal hooks of the conveyor, when they are immersed in the corresponding solutions.
  • the pickled rolls are removed from the hooks and taken to the next operations (pulling).
  • the copper wire rod is pickled in a sulfuric acid solution. Certain reactions take place during pickling. The result of one of these reactions is copper, which is deposited on the surface of the wire rod as the finest dust.
  • the copper dust on the surface of the wire rod gets into the emulsion of the drawing bench, increases its pH value, causes a high consumption of the emulsion and shortens the lifespan of the drawing iron, which significantly reduces the performance of the equipment for the continuous pickling of copper wire rod and its drawing,
  • the copper dust and scale adhering to the surface of the wire deteriorates the adhesion of the coatings subsequently applied to the wire, which reduces the quality of the production produced and is impermissible for wire with a lacquer coating.
  • the electrochemical treatment equipment takes up a lot of space. This is due to the fact that, in the technology used for the treatment, the scale can only be removed from the surface of the wire rod in a time of more than 1 minute.
  • drawing benches are used, in which the speed of the wire rod when entering the drawing machine I to 2 m / s. is. If you want to install a unit for the electrochemical treatment of wire rod in the technological system of a drawing bench, the length of the entire equipment must be a few hundred meters. For this reason, the use of such systems is not appropriate.
  • the quality of the descaling of the surface of the wire rod is only for coarse and medium ones Drawing acceptable and does not meet the requirements for fine drawing.
  • This unit contains a device for attaching a strip serving as a wire stick, a device for electrolytic cleaning with a power source, power supply rollers, a vertical electrolytic plasmatron and a circulation system for the electrolyte, a device for washing the product, a drawing bench and a device for winding the finished product Wire.
  • the unit has a device for drying the wire.
  • Electrolyte cleaning gives the surface of welding wire better properties than, e.g. mechanical cleaning
  • The. wire produced in this unit Characterized by higher corrosion resistance under atmospheric conditions, has a high surface quality and better technological characteristics when it comes to welding.
  • the invention has for its object to provide a unit for continuous copper wire production from wire rod with such a constructive design of the electrolytic plasmatron and the device for electrolytic plasma cleaning, which makes it possible to increase the performance of the unit and the surface quality of the manufactured product with minimal energy consumption improve.
  • a unit for continuous wire production from wire rod in which, in technological order, a device for attaching and unwinding wire rod rolls, a device for electrolytic plasma cleaning, a device for washing the wire rod, a drawing bench with its drive, a device for winding the finished wire and a control block are set up, wherein the device for electrolytic plasma cleaning includes a power source, power supply rollers which are set up in such a way that contact can be made with the wire rod, a lead electrolyte plasmatron, the housing of which is connected to the power source and constitutes an electrode, and a circulation system for the electrolyte, which includes one Containers for the electrolyte and a line for the supply and discharge of the electrolyte into or from the electrolyte plasmatron, according to the invention has a device for triggering a plasma discharge, which is included in the circulation system for the electrolyte and via the control block with the power source and the drive of the drawing bench, wherein the electrolytic plasmatron is arranged horizontally and has
  • This technical solution makes it possible to create an assembly that combines the devices to carry out the main technological steps in the manufacture of copper wire, namely the descaling of the wire rod and the drawing. This is possible due to the high speed of descaling in an electrolytic plasmatron of the construction according to the invention.
  • the horizontal arrangement of the electrolytic plasma allows the creation of the same conditions for the creation of a discharge at the same time over the entire length of the wire rod to be treated, since an electrolyte column with a certain and always uniform height stands over the entire length of the wire rod.
  • the additional, trough-shaped electrode and its position described make it possible to produce cylindrical equipotential surfaces in the electrolyte, which promotes uniform descaling of the wire rod and improves its surface quality.
  • the wire produced on this unit is due to the high quality of the cleaning. can be used for further fine and fine drawing and for applying a lacquer coating with success.
  • the perforation of the additional, channel-shaped electrode enables the creation of optimal conditions for the movement of the electrolyte in the plasmatron and thus for the maintenance of a constant discharge in the most favorable form for descaling, which increases the performance of the unit with minimal energy consumption.
  • the trough-shaped design of the additional electrode accelerates and facilitates the insertion of the wire rod into the unit and does not hinder the release of electrode gases from the electrolyte, which increases the performance of the unit.
  • the physical meaning of the function of the device for triggering the discharge is as follows. At the Starting up the unit in the plasmatron, the level of the electrolyte and the speed at which the electrolyte is changed are reduced. Dabel discharges occur as a result of local overheating of the electrolyte in the zone in which the aluminum wire is located. As the speed of the drawing bench increases, the electrolyte level is raised and when the drawing bench reaches full load, the speed of the change is increased. of the electrolyte in the plasma flow (the flow rate of the electrolyte per unit of time is increased). Increasing the level and speed of the change of the electrolyte leads to an increase in the current intensity and the intensity of the discharge.
  • the presence of the device for triggering a discharge makes it possible to maintain the plasma discharge on the wire rod during the start-up under these conditions during the entire operating time at the same minimum voltage as during the start-up.
  • the electrical discharge acts on the scale and mechanically removes it from the surface of the wire rod. In this way, over 90% of the scale is removed, the rest of the scale is reduced to free copper by cathode reduction.
  • the presence of the device for triggering a discharge during the entire period of operation the maintenance of the plasma discharge for the duration of the operation enables the maintenance of the plasma discharge on the wire rod at one and the same minimum voltage and the regulation of its intensity depending on the speed of the wire rod. This can improve the quality of descaling of the wire rod and its possible surface pre-oxidation due to the action of micro-discharges can be avoided. Such wire rod can be pulled at higher speeds.
  • the 'housing of the Elektrolytplasmatrons has a box shape and are each a Sohirm attached to its outer side in the vicinity of each of its end faces, being carried in the screens and in the side walls of openings in which' is each a dielectric sleeve, and slot-shaped openings for overflowing the electrolyte are made in the side walls of the housing at different heights, of which the lower opening is connected to the device for triggering the plasma discharge and the upper opening is connected to the circulation system for the electrolyte.
  • the design of the electrolytic plasmatron in the form of an open box enables the electrode gases and the steam from the reactions occurring in the electrolytic plasmatron to escape freely.
  • the dielectric sleeves attached in the openings of the end walls of the plasmatron prevent contact of the wire rod with the housing of the plasmatron and prevent short circuits and scorching of the surface of the wire rod.
  • the execution of the slot-shaped openings in Plasmatron in different heights makes it possible to change the standing height of the electrolyte above the wire rod.
  • the lower slot is opened, through which the electrolyte flows out, and the electrolyte level drops, which quickly leads to discharges at low voltages on the wire rod.
  • the electrolyte flows in a laminar flow into the circulation system for the electrolyte.
  • the laminar movement promotes the generation and maintenance of discharges at minimal voltages, with the overflows in the form of slots not interfering with the laminar movement of the electrolyte, which supports uniform descaling at high treatment speeds.
  • the additional, perforated, trough-shaped electrode be placed coaxially with the dielectric sleeve.
  • the electrode By attaching the electrode coaxially to the dielectric sleeves, a more uniform treatment of the wire rod is achieved, since in this case the.
  • the axis of the wire rod coincides with the axis of the additional, trough-shaped electrode, which ensures the equidistance of the wire rod from this electrode. This in turn contributes to a more uniform descaling of the surface of the wire rod and to an improvement in the surface quality of the manufactured product.
  • the unit has a section for a water-air prewash, which is placed behind the electrolytic plasmatron and is electrically connected to the power source and is connected to the circulation system for the electrolyte.
  • the water-air prewash enables the highest possible elimination with minimal air and water consumption contamination of the surface of the products to be treated
  • Performing a pre-wash of the wire rod prevents the majority of the copper ions from getting into the washing water. This allows you to be satisfied with a small amount of wash water.
  • connection of the section for the prewash with the power source prevents powder copper from getting into the emulsion of the drawing bench, which can increase its performance and improve the surface quality of the manufactured product.
  • the size of this potential is determined by the size of the contact resistance between the power supply rollers and the wire rod and is less than I.V. With such a potential, no oxygen is deposited on the wire rod, but the potential is sufficient for the solution of the powder copper that is on the wire is created during the cathode reduction of the scale and is extremely active, which improves the surface quality of the product produced.
  • the device for triggering a plasma discharge prefferably has a pipeline for an additional overflow of the electrolyte, with the slot-like opening of the electrolyte plasmatron. is connected, and represents a pipeline for an additional circulation of the electrolyte, wherein control valves are installed in the pipelines.
  • Such an embodiment of the device for triggering Solution of a plasma discharge enables the transition to full-load operation of the electrolyte plasmatron with simple means.
  • control valves enable automation of the descaling of the wire, which increases the performance of the unit while maintaining the high quality of the products manufactured.
  • the unit according to the invention for the continuous production of copper wire from wire rod enables the surface quality of the manufactured products to be improved and its performance to be increased with minimal energy consumption.
  • the unit designed according to the invention for continuous wire production from wire rod contains, one behind the other in the direction of movement of the products, a device I (FIG. I) for attachment and. Unwinding the rolls 2 of a wire rod 3, a device 4 for the electrolytic plasma cleaning of the wire rod 3, a device 5 (FIG. 2) for washing the wire rod 3 (FIG. I), a drawing bench 6, a device 7 for winding one out of the wire rod 3 manufactured wire 8 and a device 9 (Fig. 2 and 3) for triggering the Plasma discharge.
  • a device I (FIG. I) for attachment and. Unwinding the rolls 2 of a wire rod 3, a device 4 for the electrolytic plasma cleaning of the wire rod 3, a device 5 (FIG. 2) for washing the wire rod 3 (FIG. I), a drawing bench 6, a device 7 for winding one out of the wire rod 3 manufactured wire 8 and a device 9 (Fig. 2 and 3) for triggering the Plasma discharge.
  • the device I (Fig. I) for attaching and unwinding the rolls 2 of the wire rod 3 contains a pair of scissors I0 for cutting off the deformed ends of the wire rod 3, a welding apparatus II for resistance butt welding of the wire rod 3 and rollers I2 which the wire rod 3 for subsequent descaling conduct.
  • the rolls I2 are arranged in an S-shape and serve to primary crush the wire rod 3.
  • the device I for attaching and unwinding the rolls 2 contains a device I3 for straightening the wire rod 3, the rolls 14 of which are attached in two planes.
  • the device I for fitting and unwinding the. Rolls 2 of the wire rod 3 can also be carried out according to any other construction that serves the same purposes.
  • Zen of the wire rod 3 contains a DC power source I5, power supply rollers I6 (Fig. 2), an electrolytic plasmatron I7 and a circulation system I8 for the electrolyte.
  • the electrolytic plasmatron 17 lies horizontally and has a box-shaped housing 19 which is connected to the positive pole of the current source I5, which is why the housing I9 represents an anode.
  • a perforated intermediate wall 20 is set up, which divides the plasmatron 17 into two chambers 21 and 22.
  • the chamber 21 is used for descaling the whale wire 3, while the other chamber 22 is used for stabilizing the electrolyte flow.
  • the bottom 23 of the housing 19 of the electrolyte plasma matron 17 has an opening 24 for the supply of the electrolyte.
  • an additional, trough-shaped, open from above electrode 25 (Fig. 2, 3, 4, 5) is attached.
  • This electrode runs along the horizontal axis of the electrolyte plasmatron I7 over its entire length such that its longitudinal axis in the 'essentially coincides with the track of the wire rod 3.
  • this additional electrode 25 are provided with a perforation 26 (FIGS. 4, 5) which serves for the free circulation of the electrolyte in the chamber 2I (FIG. 3) for descaling the wire rod 3.
  • the trough-shaped shape of the additional electrode 25 and its position described ensure an equal removal of the surface of the wire rod 3 from this electrode 25, thereby creating equipotential surfaces which contribute to a uniform descaling of the surface of the wire rod 3 and improve its surface quality.
  • the perforation in the additional, trough-shaped electrode 25 allows the creation of optimal conditions for the movement of the electrolyte in the plasmatron. I7, which promotes the Aufrechternsltung an uninterrupted discharge on the surface of the wire rod 3 This in turn increases the performance of the unit as a whole with minimal energy consumption.
  • the shields 28 (FIG. 5) are connected to the housing I9 of the fleece plasmatron I7.
  • the shields 28 and the end walls 27 of the electrolyte plasma cartridge I7 are provided with openings 29 (FIGS. 2, 5), into each of which a dielectric sleeve 30 (FIG. 5) is inserted.
  • These sleeves 30 are used to avoid contact of the wire rod 3 with the end walls 27 of the housing I9 of the electrolytic plasmatron I7, thereby preventing the surface of the wire rod 3 from melting and preventing the surface quality is improved and the performance of the unit increases overall.
  • the electrolytic plasmatron 17 can also be of any other known construction. serves the same purposes, the main thing is. but with is that it lies horizontally and has an additional, channel-shaped perforated electrode 25.
  • the additional, perforated, trough-shaped electrode 25 is attached coaxially to the dielectric sleeves 30.
  • Such a position ensures that the wire rod 3 lies on the center line of this electrode 25, which ensures uniform descaling of the surface of the wire rod 3 and an improvement in its quality.
  • the diameter D of the additional, trough-shaped electrode 25 can be set in the range from 50 to 100 mm.
  • the additional, trough-shaped electrode 25 with such a diameter D prevents breakdown of the interelectrode space and the occurrence of an arc discharge and avoids unwarranted energy losses for heating the electrolyte, which increases the quality of the treatment and the performance of the unit with minimal energy consumption.
  • the diameter D of the additional, trough-shaped electrode 25 is less than 50 mm, an arc discharge can occur between the wire rod and this electrode 25.
  • the diameter D of the additional, trough-shaped electrode 25 is greater than 100 mm, there is an unjustified, high energy consumption for an undesired heating of the electrolyte.
  • the diameter D is 50 mm. This ensures a high surface quality of the wire rod 3 with minimal energy consumption.
  • slit-like openings 32 for overflowing the electrolyte are made at different heights.
  • the lower slit-like opening 32 is connected to the device 9 for triggering a plasma discharge and the upper slot-like opening 32 with the circulation system 18 for the electrolyte.
  • the slot-like design of the openings 32 favors the laminar movement of the electrolyte in the interior of the electrolyte plasmatron I7. This in turn improves the quality of the Entzunaerna the surface of the wire rod 3 and increases the capacity of the system with minimal electrical energy consumption.
  • the slot-like openings 32 are made in opposite side walls 3I of the housing I9 of the electrolyte plasmatron 17. These openings 32 can also be made in only one side wall 3I of the housing 19. The main thing is that they are at different heights.
  • Two and more slit-like openings 32 can be made at one of these heights.
  • these openings 32 must have a device (not shown in the drawing) for regulating the opening and closing of these openings 32.
  • Such an arrangement of the openings 32 enables the level of the electrolyte above the wire rod 3 to be regulated, as a result of which the intensity of the electrical discharge on the surface of the wire rod 3 can be regulated as a function of its speed of passage. All this improves the surface quality of the wire rod 3 and increases it. Capacity of the unit with minimal electrical energy consumption.
  • the device 4 (Fig. I) for electrolytic plasma cleaning contains a circulation system I8 (Fig. 2) for the electrolyte, which consists of a container 33 for the electrolyte, a pump system 34 connected to the electrolyte container 33 and a main line for the supply and Derivation of the electrolyte into or consists of the electrolytic plasmatron I7.
  • a circulation system I8 Fig. 2 for the electrolyte, which consists of a container 33 for the electrolyte, a pump system 34 connected to the electrolyte container 33 and a main line for the supply and Derivation of the electrolyte into or consists of the electrolytic plasmatron I7.
  • the main line for the supply and discharge of the electrolyte consists of a pipeline 35, the opening 24 (Fig. 3) in the bottom 23 of the housing I9 of the electrolyte plasmatron I7 with the pump system 34 (Fig.2) for the supply of the electrolyte in the Electrolytic plas matron I7 connects, and a pipeline 36 (Fig. 3), which connects the outer slot-like opening 32 of the electrolyte plasmatron 17 with the electrolyte container 33.
  • the circulation system I8 for the electrolyte can be designed according to any other known construction which ensures a constant circulation of the lead electrolyte.
  • the unit for the continuous production of wire 8 (FIG. I) from wire rod 3 has a device 9 (FIG. 2) Triggering a plasma discharge, which is built into the circulation system 18 for the electrolyte.
  • This device 9 is ER- by means of a control block 37 (Fig. I) via an electrical connection 38 to the DC power source 15 and via an electrical connection 39 connected to the V Antrieb.40 the pulling Bank 6.
  • the device 9 (Fig. 2) for 'triggering. of a plasma discharge contains a system of pipelines 4I, 42.
  • the one pipeline 4I connects the lower slot-like opening 32 (FIG. 3) of the electrolyte plasmatron I7 to the electrolyte container 33 (FIG. 2) of the circulation system IB for the electrolyte.
  • the other pipeline 42 connects the electrolyte container 33 to the pipeline 35 of the circulation system 18 for the electrolyte. which is connected to the main line for supplying the electrolyte.
  • Control valves 43 and 44 are mounted in the pipes 4I, 42.
  • the valves 43, 44 are used to regulate the level and the amount of electrolyte in the. Electrolytic plasmatron I7.
  • the construction of the device 9 according to the invention for initiating a plasma discharge makes it possible, with simple constructional means, to create optimal conditions for the existence of a constant electrical discharge on the surface of the wire rod 3 with minimal tension, as a result of which a high quality of the treated surface of the wire rod 3 and a height Performance of the aggregate is guaranteed as a whole.
  • the device. 9. for triggering. plasma discharge can also be carried out according to any other known construction which serves the same purposes.
  • This device 5 contains successively arranged chambers 45, 46, 47 for the final washing of the wire rod and a chamber 48 for blowing away the moisture from the surface of the washed wire rod 3.
  • the last chamber 47 in the direction of movement of the wire rod 3 for the final washing of the wire rod 3 is connected to a line 50 for clean water by means of a pipeline 49.
  • the same chamber 47 and the chamber 48 for blowing away the wet are connected to an air line 52 by means of pipes 51.
  • a water tank 53 with a pump system 54 which is connected to the tank 53. is.
  • the container 53 is connected by means of pipes 55 to the first and second chambers 45, 46 for the end face of the wire rod 3 in the direction of movement of the rolling rotation 3.
  • All of the chambers 45, 46, 47 for the final washing and the chamber 48 for blowing away the wet are open for free drainage of the used water and have openings 56 for the passage of the wire rod 3.
  • a section 57 for water-air prewashing of the wire rod 3 is set up, which, like the chambers 45, 46, 47, can be used for the final washing of the wire rod 3.
  • This section 57 is electrically connected to the direct current source 15 and to the circulation system 18 for the electrolyte.
  • the section 57 for water-air prewashing is located above the electrolyte tank 33 and is connected to the water tank 53 via the pipe 55 and to the air pipe 52 via the pipe 5I.
  • the section 57 for water-air prewashing of the wire rod 3 is designed to be open. Drain of the used water and has an opening 58 for the passage of the wire rod 3.
  • Section 57 serves to remove the remnants of the powder copper, which improves the surface quality of the wire rod 3 and increases the service life of the drawing bench 6 and increases the performance of the assembly as a whole,
  • the drawing bench 6 (FIG. I) is located behind the device 5 for washing the wire rod 3 in the direction of movement of the wire rod 3.
  • the drawing bench 6 can have any known construction.
  • the drawing bench 6 contains a housing 59 with openings 60 for the passage of the wire rod 3, drawing drums 6I and monolithic slide iron 62.
  • the drawing bench 6 has a drive 40, which is connected to the control block 37 via the electrical coupling 39, and one Circulation system for the lubricating emulsion (not shown in the drawing).
  • a unit 63 for electrical resistance heating of the wire 8 produced is located behind the drawing bench in the direction of movement of the wire rod 3.
  • This unit 63 has a housing 64 with openings. 65 for the passage of the wire 8. Inside the housing 64 there are rollers 66 for the electrical resistance heating of the wire 8 to improve its mechanical properties,
  • the unit 63 for electrical resistance heating of the wire 8 has a drive 67 which is connected to the control block 37 via an electrical coupling 68.
  • the device 7 for winding the finished wire 8 is set up behind the unit 63 for electrical resistance heating of the wire 8.
  • this device 7 consists of drums 69 for the continuous winding and removal of the finished wire 8. These drums 69 have autonomous drives 70, 71 which are connected to the control block 37 via an electrical coupling 72.
  • the device 7 for winding the finished wire 8 can have any other known construction which serves the same purpose.
  • the unit for the continuous production of wire 8 from wire rod 3 can also contain other mechanisms which serve to improve the technology of manufacturing wire 8 from wire rod 3, for example a mechanism for applying lacquer or polymer coatings to the wire.
  • the unit works as follows.
  • the rolls 2 of the wire rod 3 are set up in front of the unit. Then you put the end of a roll 2 and. free the beginning of another roll 2, cuts the ends on the scissors 10 and welds them into a continuous strand in the welding apparatus 11.
  • the beginning of the roll 2 is introduced via the rolls 12 into the device 13 for straightening and further to the current supply rolls 16, into the opening 29 in the housing I9 of the electrolyte plasmatron 17, into the opening 58 of the section 57, into the opening 56 of the chambers 45 , 46, 47 and in the opening 56 of the chamber 48 to blow off the water.
  • the wire rod 3 is inserted into the drawing bench 6 by passing it through the slide iron 62 and fixing it to the drawing drums 6I.
  • the wire 8 produced runs through. the unit 63 for electrical resistance heating and reaches the device 7 for winding the wire 8.
  • the control block 37 opens the valves 43 and 44.
  • the electrolyte flows from the container 33 through the pipeline 35 into the electrolyte plasmatron 17.
  • the electrolyte enters the chamber 22 for pre-stabilizing the electrolyte and then flows through the perforated partition 20 into the chamber 2I for descaling the wire rod 3.
  • the presence of the chamber 22 for pre-stabilizing the electrolyte and the perforated intermediate wall 20 stabilizes and passes the electrolyte flow evenly through the slot-like perforation in the intermediate electrode space, where it comes into contact with the wire rod 3.
  • the level ⁇ I (Fig. 3) in the plasmatron 17 is maintained by the lower slot-like opening 32, which is carried out at a certain height relative to the axis of the wire rod 3.
  • Water is then added to the pipeline 49 from the clean water line 50 and air to the pipeline 5I from the main line 52.
  • the pump system 54 When the water tank 53 is filled with water from the chamber 47 for the final washing, the pump system 54 is switched on for the supply of the water. The water enters the chambers through the pipeline 55. 45, 46, for the final wash and in section 57 for the prewash.
  • the control block 37 generates a signal to close the valve 43, and in the plasmatron I7 the amount of electrolyte supplied per unit of time increases.
  • the control block 37 closes the valve 44, and the electrolyte level rises in the plasmatron to the level ⁇ 2 (FIG. 3) and the excess electrolyte overflows through the upper opening 32 of the plasmatron 17.
  • the Plasmatron works continuously.
  • the surface of the wire rod 3 is several orders of magnitude smaller than the area of the anodes, a concentration of the lines of force of the electric field occurs in the electrolyte near the surface of the wire rod 3, as a result of which the current density in this zone increases.
  • Increasing the current density leads to an increase in the temperature in this zone and the formation of a vapor-gas layer.
  • This layer has a high one Resistance and it is where the voltage applied to the electrodes is concentrated.
  • There are electrical discharges which act on the scale and mechanically remove it from the surface of the wire rod 3. In this way, more than 90% of the scale is removed. The rest of the scale is reduced to free copper by cathode reduction.
  • the wire rod 3 is used to rinse off the residues of the electrolyte and the copper dust in the section 57 for the prewash by means of a water-air mixture, and then the final wash in the chambers 45, 46, 47 for the final wash.
  • the wire 8 is then subjected to a heat treatment in the electrical resistance heating unit 63 and wound on a drum 69 of the wire winding device 8.
  • a drum 69 is full, the wire is wound on another drum 69 of the device 7 Winding up the wire 8.
  • the unit runs in the manner prescribed by the technology.
  • the present invention can be used in cable factories for producing electrotechnical copper wire with a diameter of less than 1.5 mm from uncleared wire rod with a diameter of 7 to 10 mm.

Abstract

Dans une installation de production continue de fil métallique (8) à partir d'un fil d'ébauche (3), sont montés, en séquence technologique, une unité reliant et déroulant les bobines (2) du fil d'ébauche (3), un dispositif de nettoyage de plasma d'électrolyte, un dispositif (5) de lavage du fil d'ébauche (3), un banc d'étirage de fil et son entraînement (40), ainsi qu'un dispositif (7) d'enroulement du fil (8) produit, et une unité de commande (37). Le dispositif (4) de nettoyage de plasma d'électrolyte comprend une source de puissance (15), des cylindres (16) d'alimentation en courant, un système (18) de recyclage d'électrolyte ainsi qu'un plasmatron d'électrolyte (17), dont la structure (19) est orientée horizontalement et sert d'électrode, le plasmatron d'électrolyte (19) étant doté d'une électrode perforée supplémentaire (25) de forme cannelée, située le long de l'axe longitudinal dudit plasmatron d'électrolyte sur l'intégralité de la longueur de ce dernier, de sorte que son axe longitudinal coïncide sensiblement avec le chemin du fil d'ébauche (3). Ladite installation comprend en outre une unité d'amorçage (9) de décharge de plasma commutée dans ledit système (18) de recyclage d'électrolyte et reliée, par l'unité de commande (37), à la source de puissance (15), et à l'entraînement (40) dudit banc (6) d'étirage de fil.
EP19890902217 1988-12-26 1988-12-26 Installation for continuous production of wire from wire rod Withdrawn EP0406417A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1988/000284 WO1990007393A1 (fr) 1988-12-26 1988-12-26 Installation de production continue de fil metallique a partir de fil d'ebauche

Publications (2)

Publication Number Publication Date
EP0406417A1 true EP0406417A1 (fr) 1991-01-09
EP0406417A4 EP0406417A4 (en) 1991-01-23

Family

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Application Number Title Priority Date Filing Date
EP19890902217 Withdrawn EP0406417A4 (en) 1988-12-26 1988-12-26 Installation for continuous production of wire from wire rod

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Country Link
EP (1) EP0406417A4 (fr)
FI (1) FI904201A0 (fr)
FR (1) FR2648734A1 (fr)
WO (1) WO1990007393A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700366A (en) * 1996-03-20 1997-12-23 Metal Technology, Inc. Electrolytic process for cleaning and coating electrically conducting surfaces
US5958604A (en) * 1996-03-20 1999-09-28 Metal Technology, Inc. Electrolytic process for cleaning and coating electrically conducting surfaces and product thereof
US5981084A (en) * 1996-03-20 1999-11-09 Metal Technology, Inc. Electrolytic process for cleaning electrically conducting surfaces and product thereof
WO2002090624A2 (fr) * 2001-05-10 2002-11-14 Epcad Systems, Llc Procede et appareil de nettoyage et/ou de revetement de surfaces metalliques
CN110983421A (zh) * 2019-12-18 2020-04-10 北京达博有色金属焊料有限责任公司 一种键合铜丝电洗装置
CN113858003A (zh) * 2021-08-31 2021-12-31 浙江谋皮环保科技有限公司 一种盘条表面处理设备及处理方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20130180A1 (it) 2013-06-21 2014-12-22 Assembling S R L Apparecchio per azione elettrolitica su filo metallico

Citations (1)

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DE3715454A1 (de) * 1987-05-08 1988-11-17 Slavjanskij Vni I Pk I Metall Aggregat zur elektrochemischen reinigung von beim schweissen verwendeten langmaterialien, vorwiegend draht

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GB1576195A (en) * 1977-03-22 1980-10-01 Sumitomo Metal Ind Apparatus for continuous electrolytic descaling of steel wire with mill scales
SU863730A1 (ru) * 1978-02-08 1981-09-15 Славянский Филиал Всесоюзного Ордена Ленина Научно-Исследовательского И Проектно-Конструкторского Института Металлургического Машиностроения Агрегат дл производства порошковой проволоки
JPS5542186A (en) * 1978-09-21 1980-03-25 Sumitomo Metal Ind Ltd Continuous wire drawing mill of steel wire rods equipped with electrolytic descaler by indirect energization method
US4304113A (en) * 1979-09-07 1981-12-08 Kawasaki Steel Corporation Process of making plated wire for reinforcing rubber goods

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DE3715454A1 (de) * 1987-05-08 1988-11-17 Slavjanskij Vni I Pk I Metall Aggregat zur elektrochemischen reinigung von beim schweissen verwendeten langmaterialien, vorwiegend draht

Non-Patent Citations (1)

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See also references of WO9007393A1 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700366A (en) * 1996-03-20 1997-12-23 Metal Technology, Inc. Electrolytic process for cleaning and coating electrically conducting surfaces
US5958604A (en) * 1996-03-20 1999-09-28 Metal Technology, Inc. Electrolytic process for cleaning and coating electrically conducting surfaces and product thereof
US5981084A (en) * 1996-03-20 1999-11-09 Metal Technology, Inc. Electrolytic process for cleaning electrically conducting surfaces and product thereof
WO2002090624A2 (fr) * 2001-05-10 2002-11-14 Epcad Systems, Llc Procede et appareil de nettoyage et/ou de revetement de surfaces metalliques
WO2002090624A3 (fr) * 2001-05-10 2003-05-22 Epcad Systems Llc Procede et appareil de nettoyage et/ou de revetement de surfaces metalliques
CN110983421A (zh) * 2019-12-18 2020-04-10 北京达博有色金属焊料有限责任公司 一种键合铜丝电洗装置
CN113858003A (zh) * 2021-08-31 2021-12-31 浙江谋皮环保科技有限公司 一种盘条表面处理设备及处理方法
CN113858003B (zh) * 2021-08-31 2022-11-08 浙江谋皮环保科技有限公司 一种盘条表面处理设备及处理方法

Also Published As

Publication number Publication date
FR2648734A1 (fr) 1990-12-28
FI904201A0 (fi) 1990-08-24
WO1990007393A1 (fr) 1990-07-12
EP0406417A4 (en) 1991-01-23

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