KR20220139210A - Coupling and method for repairing broken bolt of dimensionally stable electrode using coupling - Google Patents

Abstract

The present invention relates to a coupling for repairing a bolted connection unit of a DSE electrode and a repair method of the bolted connection unit of the DSE electrode using the same. The repair method of the bolted connection unit of the DSE electrode using a titanium coupling is provided. According to one aspect of the present invention, the repair method of the bolted connection unit of the DSE electrode using the coupling of the present invention comprises the following steps of: positioning a drill machine for expansion on a damaged bolted connection unit of the DSE electrode; aligning a rotation center of the drill machine for expansion and a center axis of a bolted connection unit on a straight line; forming a coupling fastening hole having an expanded diameter of the bolted connection unit by advancing the drill machine for expansion toward the center of the bolted connection unit; shaft-coupling the coupling to the coupling fastening hole; and joining by welding the coupling to the DSE electrode using a welding seat hole formed in the coupling. An objective of the present invention is to ensure that there is no problem even in a basic energization function.

Description

Coupling for repair of bolted part of DSE electrode and repair method of bolted part of DSE electrode using the same

The present invention provides a coupling for repairing bolted parts of a DSE electrode and a DSE electrode using the same, which allows bolting to be performed after inserting a coupling by expanding the damaged area without lifting the entire facility when the bolted part of the DSE electrode is damaged. It relates to the repair method of the bolted part of

In general, in electroplating, in a plating solution containing the ions of the metal to be plated, the ion of the metal to be plated is reduced and deposited on the surface of the plated object by using the plated object as the cathode and the underlying metal or insoluble metal electrode as the anode. It is a plating method in which copper foil obtained through electroplating is typically manufactured from a very thin copper sheet and is widely used in electrical and electronic products such as batteries and printed circuit boards, so methods for quality improvement and mass production of copper foil have been developed is becoming

For copper plating, an electroplating apparatus capable of electrodeposition is used for copper foil. In a plating apparatus for manufacturing copper foil, a continuously rotating drum is usually coupled to a sulfuric acid plating bath, and an anode forming an anode is provided in the sulfuric acid plating bath. Electrolyte is filled between the anode and the drum while being wrapped around the bottom at an arbitrary interval, the anode forms an insoluble anode and the drum supplies electricity as a cathode to start electroplating, forming an electrodeposition of copper foil on the surface of the drum make it possible

The electrolytic copper foil manufacturing apparatus continuously produces copper on the surface of the negative electrode roller while current flows between a large negative electrode roller as a negative electrode, the lower portion of which is immersed in a copper electrolyte solution contained in an electrolytic cell, and an insoluble positive electrode as a counter electrode. Electrolyte is supplied through the electrolyte supply slit of the anode for plating, and the deposited copper is continuously removed from the surface of the cathode roller.

1 is a longitudinal sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art, and FIG. 2 is a cross-sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art.

As shown in FIGS. 1 and 2 , the apparatus for manufacturing an electrodeposited copper foil includes an electrolytic cell 1 to which an electrolytic solution 2 is continuously supplied, and a negative electrode drum rotating while partially submerged in the electrolytic solution 2 of the electrolytic cell 1 . (4) and an anode electrode (3) arranged along the shape of the cathode drum (4). For example, the electrolyte solution 2 is a solution of sulfuric acid, copper sulfate, iron hydrochloride, nickel hydrochloride, etc. containing 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 molten metal 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 negatively charged anode drum 4 and the positively charged anode 3 using the electrolyte 2 as a medium, the positive ions contained in the electrolyte 2 The metal in a molten state is fused to the cathode drum, and thus solidifies and precipitates as a solid.

The deposited molten metal is spun into an electrodeposited copper foil 5 in the form of a metal thin plate along the surface of the rotating cathode drum 4, and the sintered electrodeposited copper foil 5 is guided by guide rollers 6 to receive a bobbin (7). will be caught in

On the other hand, an example of the anode electrode immersed in the electrolyte corresponding to the cathode drum is disclosed in Japanese Patent Laid-Open No. 1993-202498, which will be described in detail with reference to FIG. 3 as follows. 3 is a perspective view showing the structure of the anode electrode of the prior art. The conventional anode electrode 3 is a thin-plate DSA electrode (DIMENSIONALLY STABLE ANODE) 33 on one side of the DSE electrode 32, that is, the side facing the cathode drum. ) has a structure coupled by bolts (34). The DSA electrode 33 is divided into standardized sizes, and each is continuously coupled to and detachably coupled to the DSE electrode 32 by bolts 34 .

At this time, in order to fasten the DSA electrode 33, the DSA electrode 33 is fastened to the titanium DSE electrode 32 made of the same material by using a flat head bolt 34 made of titanium.

However, since titanium is ductile, when disassembling and fastening is repeated for a long time, the screw thread of the bolt 34 is deformed by heat, external shock, and foreign matter caught, and thus, it sticks to the screw thread of the electrode tab, resulting in a problem of poor separation.

In addition, the DSA electrode 33 is replaced with a new product at least every 3 to 4 months. However, if the titanium plate bolt 34 is not disassembled in the DSE electrode 32, the DSA electrode 33 cannot be replaced and the facility is operated. There was a problem in that the entire anode electrode (3) facility had to be lifted for mechanical work to become a problem or to remove the bolt (34).

In addition, when urgent maintenance is required, there is a concern that the quality of the copper foil may be caused by using a part of the DSA electrode with the exception of bolts that cannot be disassembled and assembled.

Republic of Korea Patent No. 10-2254554

In order to solve the above problems, the present invention solves the problem of preventing the use of the electrode due to the poor separation of the bolts, and repairs it easily, and repairs the bolted part of the DSE electrode using a titanium coupling so that there is no problem in the basic energizing function. The purpose is to provide a method.

Another object of the present invention is to shorten the maintenance time by not lifting the entire facility when the bolt fastening part of the DSE electrode is damaged, but by expanding the damaged part to insert the coupling and then fastening the bolt.

Another object of the present invention is to provide a coupling coupled to the DSE electrode in a replaceable structure to facilitate installation and replacement work.

According to one aspect of the present invention, the step of positioning a drill machine for expansion in the damaged bolt fastening part of the DSE electrode;

aligning the rotation center of the drill machine for expansion and the center axis of the bolt fastening part on a straight line;

advancing the drilling machine for expansion toward the center of the bolt fastening part to form a coupling hole having an expanded diameter of the bolt fastening part;

Coupling shaft coupling to the coupling hole; and

A method of repairing the bolt fastening part of the DSE electrode using a titanium coupling including; welding and coupling the coupling to the DSE electrode using the weld seat hole formed in the coupling can be provided.

In addition, the coupling forms an inner diameter tab penetrating the center of the body in the longitudinal direction, forms an inner inclined surface in which the upper portion of the inner diameter tab is expanded in a conical shape, and a plurality of places of the inner inclined surface are welded to communicate with the coupling hole. A seat hole can be formed.

In addition, a welding opposing hole may be formed at a position opposite to the welding seat hole in the inner wall of the coupling fastening hole.

In addition, the outer diameter of the body of the coupling may be formed in a cone-shaped outer inclined surface in which the rear end is gradually wider than the entry front end, and the coupling fastening hole may be formed in a cone shape matched with the carpooling body.

According to another aspect of the present invention, the step of positioning a drill machine for expansion in the damaged bolt fastening portion of the DSE electrode (110);

aligning the rotation center of the drill machine for expansion and the center axis of the bolt fastening part on a straight line;

advancing the drilling machine for expansion toward the center of the bolt fastening part to form a coupling hole having an expanded diameter of the bolt fastening part;

Coupling shaft coupling to the coupling hole;

Drilling a keyway penetrating toward the inner wall of the coupling hole in the inner inclined surface of the coupling; and

A method of repairing the bolt fastening portion of the DSE electrode using a titanium coupling comprising; inserting a key member into the key groove and coupling the coupling to the DSE electrode may be provided.

In addition, the coupling forms an inner diameter tab penetrating the center of the body in the longitudinal direction, and forms an inner inclined surface in which the upper portion of the inner diameter tab is expanded in a conical shape, and penetrates toward the inner wall of the coupling hole in a plurality of places of the inner inclined surface. A keyway can be formed.

And, the key member may be a headless bolt.

In addition, the outer diameter of the body of the coupling may be formed in a cone-shaped outer inclined surface in which the rear end is gradually wider than the entry front end, and the coupling fastening hole may be formed in a cone shape matched with the carpooling body.

According to another aspect of the present invention, an inner diameter tab penetrating through the center of the body in the longitudinal direction is formed, an inner inclined surface extending the upper portion of the inner diameter tab in a cone shape is formed, and a welding seat hole is formed at a plurality of places of the inner inclined surface. A coupling for repairing the bolt fastening part of the DSE electrode which is formed, and the body is shaft-coupled to the coupling hole of the DSE electrode 110 and is welded to the DSE electrode using the welding seat hole may be provided.

According to another aspect of the present invention, an inner diameter tab penetrating the center of the body in the longitudinal direction is formed, an inner inclined surface is formed by extending the upper portion of the inner diameter tab in a cone shape, and the outer surface of the body is formed at a plurality of places of the inner inclined surface. To form a keyway penetrating toward the DSE electrode 110, the body is shaft-coupled to the coupling hole of the DSE electrode 110, a key member is inserted into the keyway to provide a coupling for repairing the bolt fastening part of the DSE electrode coupled to the DSE electrode. .

According to the present invention, when the bolt fastening part of the DSE electrode is damaged, the productivity is improved by shortening the maintenance time by not lifting the entire facility, but by expanding the damaged part and inserting the coupling after inserting the bolt. Since it is not necessary to replace the entire DSE electrode, it has the effect of reducing management and maintenance costs.

In addition, the present invention has the effect of easy installation and replacement work by providing the coupling coupled to the DSE electrode in a replaceable structure.

1 is a longitudinal cross-sectional view of a prior art electrodeposited copper foil manufacturing apparatus.
Figure 2 is a cross-sectional view of an electrodeposited copper foil manufacturing apparatus of the prior art.
Figure 3 is a perspective view showing the structure of the anode electrode of the prior art.
4 is a perspective view of the anode electrode in a state in which the coupling for repairing the bolt fastening part of the DSE electrode according to the first embodiment of the present invention is coupled.
Figure 5 is an enlarged view of the main part of Figure 4;
Figure 6 is a construction cross-sectional view of a state in which the coupling for repairing the bolt fastening part of the DSE electrode according to the first embodiment of the present invention is coupled.
7A to 7E are process diagrams for sequentially explaining a repair method of the bolted portion of the DSE electrode using a coupling for repairing the bolted portion of the DSE electrode according to the first embodiment of the present invention.
Figure 8 is a construction cross-sectional view of a state in which the coupling for repairing the bolt fastening part of the DSE electrode according to the second embodiment of the present invention is coupled.
9A to 9E are process diagrams for sequentially explaining a method for repairing a bolted portion of a DSE electrode using a coupling for repairing a bolted portion of a DSE electrode according to a second embodiment of the present invention.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed herein are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiment according to the concept of the present invention These may be embodied in various forms and are not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention may have various changes and may have various forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, a first component may be named as a second component, Similarly, the second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Expressions describing the relationship between elements, for example, “between” and “between” or “directly adjacent to”, etc. should be interpreted similarly.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described throughout the specification, and one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference numerals in each figure indicate like elements.

4 is a perspective view of the anode electrode in a state in which the coupling for repairing the bolt fastening part of the DSE electrode according to the first embodiment of the present invention is coupled, FIG. 5 is an enlarged view of the main part of FIG. 4, and FIG. 6 is the first embodiment of the present invention It is a construction cross-sectional view of a state in which a coupling for repairing a bolted portion of a DSE electrode according to an embodiment is coupled, and FIGS. 7a to 7e are a DSE electrode using a coupling for repairing a bolted portion of a DSE electrode according to the first embodiment of the present invention. It is a process chart for sequentially explaining the repair method of the bolt fastening part.

Referring to the drawing, in the anode electrode 100 according to the present invention, a coupling coupling hole 113 is formed in the DSE electrode 110 , and the coupling 130 body is shaft-coupled to the coupling coupling hole 113 .

At this time, the coupling 130 has a welding seat hole 133 is formed, so that the coupling 130 is welded to the DSE electrode 110 using the welding hole 133 to provide a structure.

An inner diameter tab 131 penetrating through the center of the body in the longitudinal direction is formed on the coupling 130 , and the fastening bolt 140 is coupled using the inner diameter tab 131 .

In this case, the fastening bolt 140 is used as a means for coupling the DSA electrode 120 on the DSE electrode 110 . At this time, the fastening bolt 140 is a flat head bolt, and when coupled to the coupling 130 through the DSA electrode 120 , the flat head of the bolt presses the DSA electrode 120 to the DSE electrode 110 side. to be bound to

An inner inclined surface 132 having the same shape as the countersunk shape of the fastening bolt 140 may be formed on the upper portion of the coupling 130 .

Hereinafter, as the present invention according to the first embodiment, a method for repairing the bolted portion of the DSE electrode using a titanium coupling is described with reference to FIGS. 7A to 7E .

First, the drill machine 200 for expansion is positioned on the bolt fastening part 111 of the DSE electrode 110 . At this time, the bolt fastening part 111 is the bolt fastening part 111 in a state in which the screw tab is damaged and needs repair.

In addition, the drill machine for expansion 200 serves to widen the inner diameter of the damaged bolt fastening part 111 by cutting it, and uses a drill bit having a size larger than the diameter of the bolt fastening part 111 .

The drill machine 200 for expansion is a portable device that can be moved, and after installing a holder (not shown) on the DSE electrode 110 , it can be combined with the holder to guide the drilling operation in the vertical direction.

At this time, the drill machine 200 for expansion is performed on the DSE electrode 110 in a state in which the DSA electrode 120 is separated.

At this time, the cradle maintains a stable posture of the drill machine 200 so that the correct position can be processed without shaking.

On the other hand, the machining operation is performed in a state in which the rotation center of the expansion drill machine 200 and the center axis of the bolt fastening part 111 are aligned on a straight line.

At this time, after marking a crosshair (+)-shaped reference line around the bolt fastening part 111 for alignment operation, the drill machine 200 and the cradle may be aligned in the correct position according to the reference line.

When the alignment operation as described above is completed, the drilling machine 200 for expansion is advanced toward the center of the bolt fastening part 111 to form a coupling fastening hole 113 in which the diameter of the bolt fastening part 113 is expanded. .

At this time, after the coupling hole 113 is machined to a predetermined depth, the drill machine 200 for expansion is removed, and the pre-prepared coupling 130 is inserted into the coupling hole 113 to be shaft-coupled.

At this time, it is preferable to make an interference fit state between the coupling 130 and the coupling hole 113 .

As an embodiment for this, the outer diameter of the body of the coupling 130 is formed with a cone-shaped outer inclined surface 134 in which the rear end is gradually wider than the entry tip, and the coupling hole 113 is matched with the coupling 130 body. It can be formed in a cone shape.

Such a structure not only allows the coupling 130 to be coupled to the coupling fastening hole 113 in a wedge-type manner so that the interference fit is achieved, but also releases the interference fit by applying a force in the opposite direction to the wedge during the separation operation of the coupling 130 . This provides the advantage of being able to easily separate work in a later section.

At this time, if the coupling 130 is described, the coupling 130 forms an inner diameter tab 131 penetrating the center of the body in the longitudinal direction, and the inner diameter tab 131 extends the upper portion of the inner diameter tab 131 in a cone shape. The inclined surface 132 is formed, and a welding seat hole 133 communicating with the coupling fastening hole 113 is formed in a plurality of places of the inner inclined surface 132 .

In this case, the welding seat hole 133 may be formed on the upper edge of the inner inclined surface 132, and may be formed in a “U” shape with an open upper portion.

This welding seat hole 133 is in communication with the coupling fastening hole 113, and the coupling 130 is welded to the DSE electrode 110 using the welding seat hole 133 formed in the coupling 130 to be coupled. be able to

At this time, the DSE electrode 110 and the coupling 130 can be integrated by melting and filling the welding rod in the welding hole 133 .

At this time, the welding opposite hole 113a may be formed in the inner wall of the coupling fastening hole 113 at a position opposite to the welding seat hole 133. By melting and filling the welding electrode in the welding opposite hole 113a , it is possible to increase the bonding force between the members on both sides.

Then, in a state in which the DSA electrode 120 is stacked on the DSE electrode 110 , the fastening bolt 140 is fastened to the coupling 130 so that the DSA electrode 120 is coupled to the DSE electrode 110 .

At this time, the fastening bolt 140 is a flat head bolt, and when coupled to the coupling 130 through the DSA electrode 120 , the flat head of the bolt presses the DSA electrode 120 to the DSE electrode 110 side. to be bound to

The fastening bolt 140 forms a wrench groove for transmitting rotational force using a wrench on the upper surface of the countersunk head, and the wrench groove is formed in various shapes such as a cross (+), a straight line (-), an asterisk (☆), and a polygon. can be

In particular, in the case of an asterisk (☆) or polygon, a stronger rotational force can be transmitted, so that the rigidity of the coupling and the ease of separation are improved.

Since the coupling 130 needs a conduction function and a corrosion function, it may be formed of a titanium material such as the DSE electrode 110 .

On the other hand, when the screw tab of the coupling 130 is worn or damaged to separate the coupling 130 from the coupling fastening hole 113, the previously welded portion of the welding seat hole 133 is gnawed out through a drilling operation. , it is possible to release the coupling force by welding, and thereafter, the coupling 130 may be removed and replaced.

8 is a construction cross-sectional view of a coupling state in which the coupling for repairing the bolted portion of the DSE electrode according to the second embodiment of the present invention is coupled, and FIG. 9 is for repairing the bolted portion of the DSE electrode according to the second embodiment of the present invention. It is a process chart for sequentially explaining the repair method of the bolt fastening part of the DSE electrode using the coupling.

Referring to FIG. 8 , a coupling coupling hole 113 is formed in the DSE electrode 110 , and the coupling 130 body is shaft coupled to the coupling coupling hole 113 .

At this time, a key groove 135 penetrating toward the outer surface of the body is formed in a plurality of places of the inner inclined surface 132 , and the body is shaft-coupled to the coupling fastening hole 113 of the DSE electrode 110 to the key groove 135 . The key member 136 is inserted to provide a structure in which the coupling 130 is keyed to the DSE electrode 110 .

An inner diameter tab 131 penetrating through the center of the body in the longitudinal direction is formed on the coupling 130 , and the fastening bolt 140 is coupled using the inner diameter tab 131 .

In this case, the fastening bolt 140 is used as a means for coupling the DSA electrode 120 on the DSE electrode 110 . At this time, the fastening bolt 140 is a flat head bolt, and when coupled to the coupling 130 through the DSA electrode 120 , the flat head of the bolt presses the DSA electrode 120 to the DSE electrode 110 side. to be bound to

An inner inclined surface 132 having the same shape as the countersunk shape of the fastening bolt 140 may be formed on the upper portion of the coupling 130 .

Hereinafter, as the present invention according to the second embodiment, a method for repairing the bolted portion of the DSE electrode using a titanium coupling is described with reference to FIGS. 9A to 9E .

First, the drill machine 200 for expansion is positioned on the bolt fastening part 111 of the DSE electrode 110 . At this time, the bolt fastening part 111 is the bolt fastening part 111 in a state in which the screw tab is damaged and needs repair.

In addition, the drill machine for expansion 200 serves to widen the inner diameter of the damaged bolt fastening part 111 by cutting it, and uses a drill bit having a size larger than the diameter of the bolt fastening part 111 .

The drill machine 200 for expansion is a portable device that can be moved, and after installing a holder (not shown) on the DSE electrode 110 , it can be combined with the holder to guide the drilling operation in the vertical direction.

At this time, the drill machine 200 for expansion is performed on the DSE electrode 110 in a state in which the DSA electrode 120 is separated.

At this time, the cradle maintains a stable posture of the drill machine 200 so that the correct position can be processed without shaking.

On the other hand, the machining operation is performed in a state in which the rotation center of the expansion drill machine 200 and the center axis of the bolt fastening part 111 are aligned on a straight line.

At this time, after marking a crosshair (+)-shaped reference line around the bolt fastening part 111 for alignment operation, the drill machine 200 and the cradle may be aligned in the correct position according to the reference line.

When the alignment operation as described above is completed, the drilling machine 200 for expansion is advanced toward the center of the bolt fastening part 113 to form a coupling fastening hole 113 in which the diameter of the bolt fastening part 113 is expanded. .

At this time, after the coupling hole 113 is machined to a predetermined depth, the drill machine 200 for expansion is removed, and the pre-prepared coupling 130 is inserted into the coupling hole 113 to be shaft-coupled.

At this time, it is preferable to make an interference fit state between the coupling 130 and the coupling hole 113 .

As an embodiment for this, the outer diameter of the body of the coupling 130 is formed with a cone-shaped outer inclined surface 134 in which the rear end is gradually wider than the entry tip, and the coupling hole 113 is matched with the coupling 130 body. It can be formed in a cone shape.

Such a structure not only allows the coupling 130 to be coupled to the coupling fastening hole 113 in a wedge-type manner so that the interference fit is achieved, but also releases the interference fit by applying a force in the opposite direction to the wedge during the separation operation of the coupling 130 . This provides the advantage of being able to easily separate work in a later section.

At this time, if the coupling 130 is described, the coupling 130 forms an inner diameter tab 131 penetrating the center of the body in the longitudinal direction, and the inner diameter tab 131 extends the upper portion of the inner diameter tab 131 in a cone shape. The inclined surface 132 is formed, and a keyway 135 penetrating toward the inner wall of the coupling fastening hole 113 is formed at a plurality of locations of the inner inclined surface 132 .

At this time, the keyway 135 may be formed by entering in an orthogonal direction with respect to the inner inclined surface 132 , which is inclinedly inclined with respect to the inner wall of the coupling fastening hole 113 .

By inserting the key member 136 into the key groove 135 formed in this way, the coupling 130 is coupled to the DSE electrode 110 .

At this time, the key member 136 provides a structure that can be easily separated from the key groove (135).

For example, by forming the key member 136 smaller than the diameter of the keyway 135 and made of a metal material that reacts to a magnetic material, it can be easily inserted into the keyway 135, and can be easily taken out using a magnet or the like when taken out. An embodiment may be provided to enable it.

In addition, by providing the key member 136 in the form of a hairless bolt, the key groove 135 may be helically coupled.

Through the coupling of the key member 136 as described above, it is possible to prevent the coupling 130 from being separated from the bolt fastening part 111 .

Then, in a state in which the DSA electrode 120 is stacked on the DSE electrode 110 , the fastening bolt 140 is fastened to the coupling 130 so that the DSA electrode 120 is coupled to the DSE electrode 110 .

At this time, the fastening bolt 140 is a flat head bolt, and when coupled to the coupling 130 through the DSA electrode 120 , the flat head of the bolt presses the DSA electrode 120 to the DSE electrode 110 side. to be bound to

At this time, the countersunk head of the fastening bolt 140 presses the outside of the key member 136 to prevent separation from the key groove 135 .

The fastening bolt 140 forms a wrench groove for transmitting rotational force using a wrench on the upper surface of the countersunk head, and the wrench groove is formed in various shapes such as a cross (+), a straight line (-), an asterisk (☆), and a polygon. can be

In particular, in the case of an asterisk (☆) or polygon, a stronger rotational force can be transmitted, so that the rigidity of the coupling and the ease of separation are improved.

Since the coupling 130 needs a conduction function and a corrosion function, it may be formed of a titanium material such as the DSE electrode 110 .

On the other hand, when the screw tab of the coupling 130 is worn or damaged to separate the coupling 130 from the coupling coupling hole 113, after disassembling the coupling bolt 140, the coupling 130 and the DSE electrode ( 110) Remove the key member 136 that is coupled between.

At this time, the key member 136 may be separated using a magnet or a wrench, depending on the shape. After the key member 136 is separated, the coupling 130 is removed and replaced.

According to the present invention as described above, when the bolt fastening part of the DSE electrode is damaged, the entire facility is not lifted out, and the damaged part is expanded to insert the coupling and then the bolt fastening is made. As well as improvement, the entire DSE electrode does not need to be replaced, so management and maintenance costs are reduced.

In addition, the present invention provides a coupling coupled to the DSE electrode in a replaceable structure, so that installation and replacement work is easy.

As described above, although the embodiments have been described with reference to the limited drawings, various modifications and variations are possible from the above description by those of ordinary skill in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: anode electrode 110: DSE electrode
111: bolt fastening part 113: coupling hole
113a: welding facing hole 120: DSA electrode
130: coupling 131: inner diameter tab
132: inner inclined surface 133: welding seat hole
134: outer inclined surface 135: keyway
136: key member 140: fastening bolt
200: drill machine for expansion

Claims (10)

Positioning a drill machine for expansion in the damaged bolt fastening part of the DSE electrode;
aligning the rotation center of the drill machine for expansion and the center axis of the bolt fastening part on a straight line;
advancing the drilling machine for expansion toward the center of the bolt fastening part to form a coupling hole having an expanded diameter of the bolt fastening part;
Coupling shaft coupling to the coupling hole; and
A method of repairing a bolted portion of a DSE electrode using a titanium coupling comprising the; welding and coupling the coupling to the DSE electrode using a welding hole formed in the coupling.
According to claim 1,
The coupling forms an inner-diameter tab penetrating the center of the body in the longitudinal direction, and forms an inner inclined surface in which the upper portion of the inner-diameter tab is expanded in a conical shape, and a welding seat hole communicating with the coupling hole in a plurality of places of the inner inclined surface A method for repairing bolted parts of DSE electrodes using titanium couplings that form
According to claim 1,
A method of repairing a bolt fastening part of a DSE electrode using a titanium coupling in which a weld facing hole is formed in a position opposite to the weld seat hole on the inner wall of the coupling fastening hole.
3. The method of claim 2,
A method of repairing the bolt fastening part of the DSE electrode using a titanium coupling that forms the outer diameter of the body of the coupling with a cone-shaped outer slope in which the rear end is gradually wider than the entry end, and forms the coupling hole in a cone shape to match the carpooling body .
Positioning a drill machine for expansion in the damaged bolt fastening part of the DSE electrode;
aligning the rotation center of the drill machine for expansion and the center axis of the bolt fastening part on a straight line;
advancing the drilling machine for expansion toward the center of the bolt fastening part to form a coupling hole having an expanded diameter of the bolt fastening part;
Coupling shaft coupling to the coupling hole; and
Drilling a keyway penetrating toward the inner wall of the coupling hole in the inner inclined surface of the coupling;
A method of repairing a bolt fastening part of a DSE electrode using a titanium coupling comprising; inserting a key member into the keyway and coupling a coupling to the DSE electrode.
6. The method of claim 5,
The coupling forms an inner diameter tab penetrating the center of the body in the longitudinal direction, forms an inner inclined surface extending the upper portion of the inner diameter tab in a cone shape, and a keyway penetrating toward the inner wall of the coupling fastening hole at a plurality of points on the inner inclined surface A method for repairing bolted parts of DSE electrodes using titanium couplings that form
6. The method of claim 5,
The key member is a repair method of the bolt fastening part of the DSE electrode using a titanium coupling, characterized in that the bolt.
7. The method of claim 6,
A method of repairing the bolt fastening part of the DSE electrode using a titanium coupling that forms the outer diameter of the body of the coupling with a cone-shaped outer slope in which the rear end is gradually wider than the entry end, and forms the coupling hole in a cone shape to match the carpooling body .
An inner diameter tab penetrating the center of the body in the longitudinal direction is formed, an inner inclined surface is formed in which the upper portion of the inner diameter tab is expanded in a conical shape, a welding seat hole is formed in a plurality of places of the inner inclined surface, and a DSE electrode (110) A coupling for repairing bolted parts of the DSE electrode that is axially coupled to the coupling hole of the DSE electrode and welded to the DSE electrode using the welding hole.
Forming an inner diameter tab penetrating the center of the body in the longitudinal direction, forming an inner inclined surface extending the upper portion of the inner diameter tab in a conical shape, and forming a keyway penetrating toward the outer surface of the body at a plurality of points on the inner inclined surface, DSE A coupling for repairing the bolt fastening part of the DSE electrode in which the body is shaft-coupled to the coupling hole of the electrode 110 and the key member is inserted into the key groove to be coupled to the DSE electrode.

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