KR102260510B1 - The method Cathode drum and Cathode drum for electrolytic deposition - Google Patents

Abstract

According to the present invention, a high-density current is applied between a cathode drum charged with negative potential in an electrolytic cell and an anode electrode charged with a positive potential by applying a high-density current to the electrolyte solution of a thin metal plate to be obtained between the cathode drum and the cathode drum. In order to allow the solid thin film to be solidified and precipitated by fusion, a conductive welding layer of copper alloy with high conductivity is formed on the circumferential surface made of iron or carbon steel, which is the base material of the negative electrode drum, so that the bearing of the negative electrode drum is energized. Electrolytic deposition cathode that allows the current from the ring to be transmitted with high conductivity to the outer circumferential surface of the cathode drum through the rotating shaft, so that a solid thin film of a certain thickness can be solidified and precipitated with good conductivity on the surface of the cathode drum A drum and a method for manufacturing the same, wherein an inner cylinder 30 made of iron or carbon steel, which is the base material of the negative electrode drum 20, and an outer cylinder having characteristics such as corrosion resistance, abrasion resistance, and heat resistance on the outside of the inner cylinder 30 In the manufacturing method of the cathode drum for electrolytic deposition in which the 70 is an interference fit of the shrink fit, an electric current welding layer of a copper alloy excellent in conductivity is applied to the circumferential surface 31 of the inner cylinder 30 by an arc welding machine. (40) is formed, A turning surface 50 is formed with a thickness of about 2 to 6 mm on the surface of the current welding layer 40 through post-processing surface treatment of turning, and a silver plating layer 60 on the turning surface 50 of the current welding layer 40 ) is formed, so that the outer cylinder 70 made of titanium material is connected to the silver plating layer 60 by an interference fit coupling of shrink fit, so that the energization of the inner cylinder 30 is transferred to the outer cylinder. There is a feature in the method for manufacturing a cathode drum for electrolytic deposition that is transferred directly to 70 and at the same time, a surface having a higher aggregate strength than the surface of the inner cylinder 30 can be obtained, and the present invention is also characterized in that the cathode drum 20 ), the rotating shaft 21 of the inner cylinder 30 made of iron or carbon steel, which is the base material, is rotatably formed at a constant speed on the bearing 140 of the rotating table 100, and the cathode drum 20 of the rotating table 100. The current welding layer 40 is formed on the circumferential surface of the inner cylinder 30 by the arc welding machine 300 that is pitched in the direction perpendicular to the circumference of the cathode drum 20 on the worktable 200 that is movable toward the In addition, the current welding layer 40 of the present invention is performed by an arc welding machine of inert tungsten arc welding (TIG welding) or gas shielded metal arc welding (MIG welding), and the welding growth process is 80 to per minute It proceeds at a speed of 200 mm and a current of about 100 to 130 A is used, so that the current-carrying welding layer 40 can be obtained on the surface of the circumferential surface of the inner cylinder 30 of the cathode drum 20, and further, the present invention of the rotating table 100, a driving shaft 160 that is rotated by a first driving source 150 is formed, the rotating shaft 21 of the cathode drum 20 is coupled to this driving shaft 160, and the bearing 140 is It is supported and formed to be rotatable at a set speed, and in the rotary table 100 of the present invention, a work space 110 and a rest space 120 are partitioned by the rail 130, and the arc welding machine 300 ) is formed, the work table 200 is moved from the rest space 120 to the work space 110 , and the bearing 140 is placed on the rotating table 100 . Arc welding is performed on the circumferential surface 31 of the inner cylinder 30 of the rotatable cathode drum 20, and the arc welding machine 300 of the worktable 200 of the present invention is a rotating table 100 ) is formed to be movable as much as a pitch set in a direction perpendicular to the circumferential circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 rotated at a set speed of the controller 210 by the controller 210, and the inner cylinder 30 ) is to be formed on the surface of the circumferential surface 31 of the energized welding layer 40 of the build-up welding, and the present invention also provides an inner cylinder 30 made of iron or carbon steel, which is the base material of the negative electrode drum 20, and the In the cathode drum for electrolytic deposition in which an outer cylinder 70 having characteristics such as corrosion resistance, abrasion resistance, heat resistance, etc. is coupled to the outside of the inner cylinder 30 by an interference fit of shrink fit, the circumference of the inner cylinder 30 A current-conducting welding layer 40 of a copper alloy excellent in electrical conductivity is formed on the peripheral surface 31 by the arc welding machine 300, and this A turning surface 50 is formed with a thickness of about 2 to 6 mm on the surface of the current welding layer 40 through post-processing surface treatment of turning, and a silver plating layer 60 on the turning surface 50 of the current welding layer 40 ) is formed, so that the energization of the inner cylinder 30 is performed by the outer cylinder 70 of the inner cylinder 30 by the interference fit coupling of the outer cylinder 70 made of titanium material to the silver plating layer. ), and at the same time, it is characterized in the cathode drum for electrolytic deposition so that a surface having a higher aggregate strength than the surface of the inner cylinder 30 can be obtained.

Description

Cathode drum for electrolytic deposition and its manufacturing method {The method Cathode drum and Cathode drum for electrolytic deposition}

The present invention relates to a cathode drum for electrolytic deposition capable of obtaining an electrolytic thin plate from an electrolytic cell and a method for manufacturing the same, and more particularly, to a metal thin plate to be obtained between a negatively charged cathode drum and a positively charged anode electrode in an electrolytic cell. By applying high-density electric current using the electrolyte of the solution of the anode drum, the copper in the cation state contained in the electrolyte is fused to the cathode drum, so that the solid thin film can be solidified and precipitated, such as iron or carbon steel, which is the base material of the cathode drum. By forming a conductive welding layer of copper alloy with high conductivity on the manufactured circumferential surface, the current from the energizing ring of the bearing of the negative electrode drum through the rotating shaft can be transmitted with high conductivity to the outer peripheral surface of the negative electrode drum. The present invention relates to a cathode drum for electrolytic deposition and a method for manufacturing the same, so that a solid thin film of a certain thickness can be solidified and precipitated with good conductivity on the surface of the electrode.

In general, light, thin and compact electrical and electronic devices are accelerating, and accordingly, circuits built into the devices are also being miniaturized. Accordingly, circuits formed on the PCB are also becoming increasingly thin. Accordingly, the thin electrodeposited copper plate is also being made into an ultra-thin plate, and accordingly, the importance of the high-quality electrodeposited copper plate is increasing.

In order to obtain an electrolytic thin plate of iron, copper, chromium, nickel, etc., the electrolytic thin plate is manufactured by a general apparatus including an anode electrode, which is placed in an electrolytic cell at a predetermined interval with an anode drum and a cathode drum, and is an insoluble drum-type cathode. Between the ash and the insoluble anode material, an electrolytic reaction is performed while supplying an electrolytic solution containing metal ions, thereby electrolytically precipitating a target thickness on the surface of the drum-type anode material to form a thin metal plate. Then, the formed thin metal plate is peeled off from the surface of the drum-type negative electrode material and manufactured.

That is, in the manufacture of an electrolytic thin plate, an electrolytic reaction of iron, copper, chromium, nickel, etc. is flowed between a rotating cathode having a drum shape and a lead-based anode, etc. disposed opposite to each other according to the shape of the rotating cathode drum, and the electrolytic reaction is carried out. Copper is deposited on the surface of the rotating cathode drum by using the copper, and when the deposited copper is in a thin state, it is continuously peeled off from the rotating cathode drum and wound up.

As shown in FIGS. 1 and 2 , the apparatus for manufacturing an electrolytic thin plate includes an electrolytic cell 1 to which an electrolytic solution 2 is continuously supplied, and a negative electrode rotating with a part submerged in the electrolytic solution 2 of the electrolytic cell 1 . It includes a drum (4) and an anode electrode (3) arranged along the shape of the cathode drum (4).

For example, the electrolyte solution 2 is a copper sulfate solution containing sulfuric acid, copper ions, and chlorine ions, and has strong acid properties. The electrolyte (2) is supplied and circulated at a relatively high speed in the electrolytic cell (1) in order to prevent a deficiency of copper ions in the vicinity of the cathode drum (4).

In addition, the surface material of the negative electrode drum (4) is composed of titanium, which maintains acid resistance to the electrolyte (2) and facilitates the peeling of the thin metal plate (5). In this configuration, when a high-density current is applied between the negative electrode drum 4 charged to the negative potential and the positive electrode 3 charged to the positive potential using the electrolyte 2 as a medium, the positive ions contained in the electrolyte 2 Copper in the state is fused to the cathode drum, and thus solidifies and precipitates as a solid.

The deposited copper is made into a thin electrodeposited copper plate 5 in the form of a metal thin plate along the surface of the rotating negative electrode drum 4, and the thin electrodeposited copper plate 5 is guided by guide rollers 6 to form a bobbin 7 ) will be caught in A DC power supply 11 supporting both ends of the rotating shaft 8 with bearings 9 and supplying electricity and a energizing ring 10 through which DC current is conducted are shown.

The cathode drum (4) has an inner cylinder and an outer cylinder around the rotating shaft (8), and the inner cylinder is manufactured and machined into a cylindrical shape using iron or carbon steel, etc. and then mounted, The outer cylinder is formed by forming a titanium rolled plate with a thickness of approximately 5-8 mm into a cylindrical shape, and is press-fitted by shrink fit to the inner cylinder. In addition, the surface of the outer cylinder is machined and polished. In particular, since titanium is superior to other functional metals in properties such as corrosion resistance, abrasion resistance and heat resistance, it is used as the outer cylinder of the negative electrode drum.

When current is supplied to the energizing ring 10 that supplies electricity to the left and right, it is supplied to the outer cylinder made of titanium through the inner cylinder made of iron or carbon steel through the rotating shaft 9,

Then, a silver plating layer is formed on the surface of the inner cylinder of the iron or carbon steel to increase electrical conductivity.

However, when the outer cylinder is press-fitted to the silver-plated surface of the inner cylinder, the silver plating layer on the inner cylinder surface must be peeled off or the inner and outer circumferential surfaces must be in full surface contact with each other. If there is no surface contact in a part of the inner cylinder, energization of the inner cylinder is not transmitted to the outer cylinder, so a thin film of a certain thickness does not solidify and precipitate on the surface of the outer cylinder due to poor conduction, resulting in defective products. there is a problem with

Registered Patent No. 10-1630979

The present invention is to solve the above problem, and the inner cylinder made of iron or carbon steel, which is the base material of the negative electrode drum, and the outer cylinder having characteristics such as corrosion resistance, abrasion resistance, heat resistance, etc. A conductive welding layer of a copper alloy having excellent electrical conductivity is formed on the circumferential surface of the inner cylinder for custom bonding, and then a silver plating layer having excellent thermal and electrical conductivity is formed on the conductive welding layer, and then this silver plating layer The purpose of this is to ensure that the outer cylinder is coupled with an interference fit of shrink fit.

In addition, the rotating shaft of the inner cylinder made of iron or carbon steel, which is the base material of the negative electrode drum of the present invention, is rotatably formed at a constant speed on the bearing of the rotating table, and is fixed in the circumferential direction of the negative electrode drum on the worktable movable toward the negative drum of the rotating table. The purpose is to form an energized welding layer on the circumferential surface of the inner cylinder by the pitch-moved arc welding machine.

In addition, the surface properties of the base material are improved through the current welding layer of copper alloy having wear resistance, corrosion resistance and heat resistance on the circumferential surface of the inner cylinder of the negative electrode drum of the present invention, and a surface with higher aggregate strength than the surface of the base material can be obtained. aims to become

In addition, the current welding layer of the present invention can be performed by inert tungsten arc welding (TIG welding) or gas shielded metal arc welding (MIG welding), and the welding growth process is performed at a speed of 80 to 200 mm per minute and a current of about 100 to 130 A is used, so that a current welding layer can be obtained on the surface of the circumferential surface of the inner cylinder of the cathode drum, and the current welding layer is then subjected to post-processing such as turning to have a thickness of about 2 to 6 mm. intended to be welded.

In addition, in the welding wire supplied to the welding torch of the arc welding of the present invention, as the welding is performed on the circumferential surface of the inner cylinder of the cathode drum by the current supplied to the tip from the power source, pure copper or bronze, brass Since a copper alloy such as , phosphorus copper is a basic molten material, this current-conducting welding layer is made of copper material to not only have high current conduction, but also to satisfy the requirements for durability, corrosion resistance, abrasion resistance, heat resistance, and the like.

In addition, the present invention is a preliminary process for forming an energized welding layer on the circumferential surface of the inner cylinder of the negative electrode drum, and the rotating shaft of the negative electrode drum is placed on the bearing of a rotating table using a crane or the like, and a target object to form an energized welding layer After removing impurities or foreign substances from the surface of the inner cylinder, that is, the surface of the inner cylinder, which is the base material of the cathode drum, an energizing welding layer can be formed on the circumferential surface of the inner cylinder by arc welding.

In addition, the present invention cleanly cleans the surface of the energized welding layer welded on the circumferential surface of the inner cylinder of the negative electrode drum, for example, using a cutting machine such as turning, sending, shot, or wire brush, etc. After removing impurities and foreign substances from the surface of the welding layer, and forming a silver plating layer that is an electrical conductor and has excellent conductivity on the surface of the current welding layer from which the machining and impurities are removed, a titanium plate is rolled on the silver plating layer for welding, etc. The purpose is to combine the outer cylinder manufactured in a cylindrical shape by means of a fixing means by an interference fit such as shrink fit.

According to the present invention, the rotating shaft of the inner cylinder made of iron or carbon steel, which is the base material of the negative electrode drum, is rotatably formed at a constant speed on the bearing of the rotation table, and in a direction perpendicular to the circumference of the negative electrode drum on the worktable movable toward the negative electrode drum of the rotation table. In the method of manufacturing a cathode drum for electrolytic deposition in which an energized welding layer is formed on the circumferential surface of an inner cylinder by a pitch-moved arc welding machine, the rotary table has a drive shaft that is rotated by a first drive source, and the drive shaft The rotating shaft of the cathode drum is coupled and supported by the bearing, and is formed to be rotatable at a set speed.

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In addition, in the rotating table of the present invention, the working space and the resting space are partitioned by rails, and the working table on which the arc welding machine is formed is moved from the resting space to the working space, and the inner cylinder of the cathode drum is rotatable by being supported on the rotating table. Arc welding is performed on the circumferential surface of

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As described above, in the present invention, a high-density current is applied between the negatively charged anode drum and the positively charged anode electrode in the electrolytic cell using the electrolyte solution of the thin metal plate to be obtained as a medium. In order that copper is fused to the negative electrode drum so that a solid thin film can be solidified and precipitated, a current-carrying welding layer of a copper alloy with high conductivity is formed on the circumferential surface made of iron or carbon steel, which is the base material of the negative electrode drum, so that the negative electrode drum By allowing the current from the energizing ring of the bearing of the anode drum to be transmitted with high conductivity to the outer circumferential surface of the anode drum via the rotating shaft, a solid thin film of a certain thickness can be solidified and precipitated with good conductivity on the surface of the cathode drum. have.

1 is a schematic diagram of a conventional cathode drum for electrolytic deposition;
Fig. 2 is a schematic longitudinal cross-sectional view of Fig. 1;
3 is a longitudinal cross-sectional view of the cathode drum for electrolytic deposition of the present invention;
4 is a schematic plan view of a method for manufacturing a cathode drum for electrolytic deposition of the present invention;
Fig. 5 is a schematic front view of Fig. 4;
Fig. 6 is a schematic side view of Fig. 4;
7 is a view showing an example of welding and turning of an energized welding layer formed on the circumferential surface of the inner cylinder of the cathode drum of the present invention.

A specific example of the present invention will be described in detail with reference to the accompanying drawings as follows.

As shown in FIG. 3 , the cathode drum 20 for electrolytic deposition includes a rotating shaft 21 , a retaining ring 22 fixed to the rotating shaft 21 , and an inner cylinder 30 fixed to the retaining ring 22 . ), and a conductive welding layer 40, a silver plating layer 60 and an outer cylinder 70, which will be described later, are formed and combined on the circumferential surface 31 of the inner cylinder 30, and also the cathode drum 20 On the side of the side plate 23 is hermetically fixed by means of a screw or the like.

The current welding layer 40 is, on the circumferential surface 31 of the inner cylinder 30, a copper alloy with excellent conductivity, and by an arc welding machine 300 using a fusible wire 310 as an electrode, the inner cylinder Build-up welding having a constant thickness is performed on the entire surface of the circumferential peripheral surface 31 of (30).

Also, said As shown in FIG. 7 , the surface of the energized welding layer 40 is subjected to a post-processing surface treatment of turning to form a turning surface 50 with a thickness of approximately 2 to 6 mm. After the silver plating layer 60 is formed on the turning surface 50 of the current welding layer 40 as described below, the outer cylinder 70 made of titanium is coupled to the silver plating layer 60 .

In particular, in forming the energized welding layer 40, the welding wire supplied to the welding torch of arc welding is the inner cylinder 30 of the cathode drum 20 by the current supplied to the tip from the power source. As welding is performed on the circumferential surface 31 of Since the surface of the inner cylinder 30 of 20) is integrally formed by being overlaid with the current welding layer 40, the surface of the inner cylinder 30 made of iron or carbon steel, which is a base material, is wrapped around the inner cylinder 30. The material can meet the requirements such as durability, corrosion resistance, abrasion resistance, heat resistance, and the like, and it is possible to obtain a modifying effect to obtain a surface having a higher aggregate strength than the surface of the inner cylinder 30 .

Furthermore, since the energized welding layer 40 maintains a state integrally welded to the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20, the rotation shaft 21 by airtightness without gaps. A current with high conductivity can be directly transferred from the energizing ring of the inner cylinder 30 through the energizing welding layer 40 to the outer cylinder 70 .

Therefore, when the outer cylinder is pressed to fit the surface of the conventional inner cylinder, the inner and outer circumferential surfaces of the inner cylinder surface and the outer circumferential surface do not come into close contact with each other as a whole, so that the inner cylinder is not energized. The present invention can solve the problem that the solid thin film of a certain thickness on the surface of the outer cylinder is not properly solidified and precipitated due to poor energization as it is not transmitted to the outer cylinder, resulting in defective products.

In addition, in the present invention, the current welding layer 40 formed on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 is subjected to a post-processing surface treatment of turning to a thickness of approximately 2 to 6 mm. A silver plating layer 60 which is a good conductor of electricity and has high conductivity is formed on the angled surface 50 . This silver plating layer 60, together with the energized welding layer 40, has a high conductivity from the inner cylinder 30 to the outer cylinder 70 of the energized cathode drum 20 supplied from the energizing ring of the rotating shaft 21. so that it can be transmitted to

The outer cylinder 70 made of titanium is coupled to the silver plating layer 60 by an interference fit by a shrink fit operation.

In the present invention, even if a portion of the silver plating layer 60 is peeled off from the combination of the silver plating layer 60 and the outer cylinder 70 and the inner and outer surface contact is not made somewhat with each other, the current welding layer 40 and the outer cylinder 70) Electricity supplied from the energizing ring of the rotating shaft 21 through surface contact with the pole can be transmitted with high conductivity from the inner cylinder 30 to the outer cylinder 70 of the negative electrode drum 20 .

Next, the manufacturing method of the cathode drum for electrolytic deposition of the present invention will be described as follows.

4 to 6, in the state in which the retaining ring 22 fixed to the rotating shaft 21 of the negative electrode drum 20 and the inner cylinder 30 fixed to the retaining ring 22 are combined, The rotating shaft 21 of the cathode drum 20 is coupled to the driving shaft 160 while being placed on the bearings 140 formed in the working space 110 of the rotary table 100 using a crane, etc., and the first driving source such as a motor It is rotatably mounted by 150 , and the speed of the first drive source 150 and the second drive source 340 to be described later are controlled by the controller 210 .

In the present invention, as a preliminary process for obtaining the energized welding layer 40 , impurities or foreign substances are removed from the surface of the target object, that is, the surface of the circumferential surface of the inner cylinder 30 , which is the base material of the cathode drum 20 .

4 and 5, in the rotating table 100, the work space 110 and the rest space 120 are partitioned by the rail 130, and the arc welding machine 300 is formed on the work table 200. is moved from the rest space 120 to the work space 110, and is supported on the rotary table 100 by the bearing 140, and the arc on the circumferential surface 31 of the inner cylinder 30 of the rotatable cathode drum 20 Welding can be done.

The work table 200 is located on the right side of the drawing as indicated by the solid lines in FIGS. 4 and 5 when the work is not performed on the rotary table 100, and the work is performed on the cathode drum 20 on the rotary table 100. When it moves, it moves on the rail 130 like the virtual line on the left side of the drawing. The movement of the worktable 200 is also controlled by the controller 210 .

In addition, as shown in FIGS. 4 to 6 , an arc welding machine 300 is placed on the carrier 330 on the work table 200 , and the carrier 330 is left and right in the drawing by a welding rail 350 . It is formed to be movable in the direction. Also, the movement of the carrier 330 is also controlled by the controller 210 , and is driven by the second driving source 340 , which is a driving motor.

The arc welding machine 300 is an inert tungsten arc welding (TIG welding) or gas shielded metal arc welding (MIG welding), a device for continuously automatically supplying the wire 310, which functions as an electrode and a filler, to the torch 320 And, to the welding torch 320, the welding wire 310 is supplied, and is sent out from the tip through the tip body, and the welding wire 310 is supplied with the current supplied to the tip from the power supply, whereby welding is performed. is executed

The wire 310 of the arc welding machine 300 of the present invention is energized on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 using a copper alloy such as pure copper, bronze, brass, phosphor copper, etc. The layer 40 is formed, and a material capable of maintaining a copper component of about 98.91 to 98.99 is adopted.

Therefore, after the work table 200 moves to the work space 110 on the side of the rotating table 100 , the carrier 330 on the work table 200 is adjusted in the left and right directions to operate the arc welding machine on the carrier 330 . The torch 320 of 300 is located on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20, and this position information is installed on the torch 320 of the arc welding machine 300, etc. According to the signal from the sensor, the mutual position can be secured and welding can be started.

The arc welding machine 300 of the present invention, the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 rotated at the set speed of the controller 210 in the working space 110 of the rotary table 100 It is formed to be movable by a pitch set in an orthogonal direction, so that the energization welding layer 40 of the build-up welding is performed on the surface of the circumferential circumferential surface 31 of the inner cylinder 30 .

The welding growth process proceeds at a speed of 80 to 200 mm per minute and a current of about 100 to 130 A can be used, and the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 is energized. The thickness of the welding layer 40 is approximately 5 to 9 mm.

For example, when the driving shaft 160 of the first driving source 150 is rotated by the controller 210 , the cathode drum 20 is rotated by the rotation of the rotating shaft 21 , so that the arc above the worktable 200 is rotated. Welding is performed in a state in which the torch 320 of the welding machine 300 is positioned to be weldable with the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 . Accordingly, when the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 is welded in one rotation, the carrier 330 on the work table 200 moves at a constant pitch, and then Growth welding is performed adjacent to the raised welded part. By welding and pitch movement as described above, growth welding is performed on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 .

Also as an example, the carrier 330 on the work table 200 moves the welding rail 350 , and welding is gradually performed in the width direction of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 . After performing the operation of the first driving source 150, the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 is rotated at a constant pitch, and then adjacent to the growth welded portion. can make this run. As described above, growth welding can be performed on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 by welding and pitch movement.

The above two methods can be selected and applied according to the size or working space of the diameter and length of the inner cylinder 30 of the negative electrode drum 20 .

In addition, the surface of the energized welding layer 40 that is built-up welded to the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 is rough, so that it is necessary to perform a post-processing of machining such as turning.

As shown in FIG. 7, the thickness of the energized welding layer 40 on the surface of the circumferential surface 31 of the inner cylinder 30 of the negative electrode drum 20 is approximately 5 to 9 mm and a smooth turning surface ( 50) with a thickness of approximately 2 to 6 mm. This post-processing may be performed by a turning mechanism directly on the rotary table 100, or may be performed in another separate process.

On the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20 in the rotating table 100 of the working space 110, the energized welding layer 40 and the working space 110 when the turning is finished After the work table 200 moves to the rest space 120 , the cathode drum 20 may be separated from the rotating table 100 and extracted using a crane or the like.

In addition, in a separate process, the current welding layer 40 is formed on the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20, and also formed on the turning surface 50 by turning. do.

In addition, a silver plating layer 60 is formed on the surface of the turning surface 50 of the current welding layer 40 . An outer cylinder 70 manufactured in a cylindrical shape by a fixing means such as welding by rolling a titanium flat plate is coupled to the silver plating layer 60 by interference fitting such as shrink fit.

1: Electrolyzer 2: Electrolyte
3: positive electrode 4: negative drum
5: thin metal plate 6: guide roll
7: bobbin 8: rotation shaft
9: bearing 10: ring
11: DC power supply 20: negative drum
21: rotation shaft 22: retaining ring
23: side plate 30: inner cylinder
31: circumferential surface 40: current welding layer
50: turning surface 60: silver plating layer
70: outer cylinder 100: rotation table
110: work space 120: rest space
130: rail 140: bearing
150: first drive source 160: drive shaft
200: workbench 210: controller
300: arc welding machine 310: wire
320: torch 330: carrier
340: second driving source 350: welding rail

Claims (7)

delete delete delete In the state in which the retaining ring 22 fixed to the rotating shaft 21 of the negative electrode drum 20 and the inner cylinder 30 fixed to the retaining ring 22 are coupled, in the bearing 140 of the rotary table 100 By an arc welding machine 300 that is formed rotatably at a constant speed and is pitched in a direction perpendicular to the circumference of the cathode drum 20 on the worktable 200 that is movable toward the cathode drum 20 of the rotary table 100 In the method for manufacturing a cathode drum for electrolytic deposition in which a current-conducting welding layer 40 is formed on the circumferential surface of the inner cylinder 30,
The rotary table 100 has a drive shaft 160 that is rotated by a first drive source 150 is formed, and the rotary shaft 21 of the cathode drum 20 is coupled to the drive shaft 160 by a bearing 140 . It is supported and rotatably formed at a set speed,
In the rotary table 100, the work space 110 and the rest space 120 are divided by the rail 130, and the work table 200 on which the arc welding machine 300 is formed is provided from the rest space 120 to the work space. The arc welding is performed on the circumferential peripheral surface 31 of the inner cylinder 30 of the negative electrode drum 20 which is moved to 110 and is supported by the bearing 140 on the rotary table 100 and is rotatable,
When the driving shaft 160 of the first driving source 150 is rotated by the controller 210 , the cathode drum 20 is rotated by the rotation of the rotating shaft 21 , and the arc welding machine 300 on the work table 200 is a torch Welding is performed in a state where the 320 is in a position where it can be welded with the surface of the circumferential surface 31 of the inner cylinder 30 of the cathode drum 20,
A current welding layer 40 is formed on the surface of the circumferential circumferential surface 31 of the inner cylinder 30 of the cathode drum 20, and the turning surface 50 is formed by turning,
A silver plated layer 60 is formed on the surface of the turning surface 50 of the energized welding layer 40, and a titanium plate is rolled on the silver plated layer 60 to have a cylindrical shape by fixing means such as welding. A method of manufacturing a cathode drum for electrolytic deposition, characterized in that the indigo cylinder (70) is coupled by an interference fit such as shrink fit. delete delete delete

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