KR930003823B1 - Device for metal strip electrolytic processing - Google Patents

Abstract

No content.

Description

Metal rough electrolytic device

1 is a schematic cross-sectional view showing the overall structure of a continuous electrogalvanizing line using a suitable electrolytic treatment apparatus according to the present invention.

2a and 2b are cross sectional views of the apparatus for operating the first and second units of the electrolytic tank between the assembled position of FIG. 3 and the separated positions of FIG. 4, FIG. 2b is a cross-sectional view showing that the electrolytic tank is in a separated state.

3 is a partial cross-sectional view of the electrolytic tank constituting part of a preferred embodiment of the electrolytic apparatus according to the present invention in an assembled state.

FIG. 4 is a cross-sectional view of the electrolytic tank of FIG. 3 showing the first and second units constituting the electrolytic tank in respective separated positions.

5 is an enlarged cross-sectional view of a preferred embodiment of a piping system for an electrolytic treatment apparatus according to the present invention in which the tubes are shown separated from each other upon separation of the first unit and the second unit.

FIG. 6 is a cross sectional view similar to FIG. 5 with the tubes connected as the first and second units are operated in the assembled position.

7 is an enlarged cross-sectional view of a seal in the piping system of FIGS. 5 and 6;

FIG. 8 is a sectional view similar to FIG. 3 showing a state in the electrolytic treatment of a modified embodiment of the electrolytic tank. FIG.

FIG. 9 is a sectional view similar to FIG. 4 showing the electrolytic tank of FIG. 8 being in a separate position. FIG.

FIG. 10 is a cross-sectional view similar to FIG. 2A showing a modification of the apparatus shown in FIGS. 2A and 2B.

* Explanation of symbols for main parts of the drawings

11: metal opposite 104: upper part

106: lower portion 108: cover member

112: electrolytic solution tank 114: main roller

116: Challenge Roller 118: Operation Donation

124: life cycle 128: hydraulic cylinder

142: fixed pipe 144: drain pipe

150: sealing roller 164: actuator

The present invention relates to an electrolytic treatment apparatus for metal strips. In particular, the present invention relates to an electrolytic treatment apparatus used in an electrogalvanizing line, an electro tin plating line, a chromium electrolytic treatment process, a phosphate treatment process, a chromate treatment process, and the like. The present invention also relates to a novel apparatus for electrolytically treating the surface of a metal piece.

So-called " radical type " electrolytic treatment apparatuses are known in the field of metal counter surface treatment. In such an electrolytic treatment apparatus, the metal pieces of the roughly shaped shape are supplied along a grain passage formed by a plurality of rollers. During this movement, the metal counterpart is immersed in the electrolytic solution or electrolytic solution in the electrolytic tank. In the electrolytic solution, an electric current is applied to the opposite metal to generate electrolysis. Recently, various surface treatments have been carried out on the opposite side of metal. For example, even when only the case of electro zinc plating is considered, in addition to pure zinc, a mixture of zinc and steel, zinc, nickel and the like is used as the plating agent. Therefore, various electrolytic solutions are required for each plating process and plating agent. In other words, when two different electrolytic solutions are mixed, the purity of the solution is remarkably degraded, thereby degrading the quality of the plating.

Therefore, in the conventional process, when the electrolytic process is to be performed using different plating agents, the electrolytic solution of one plating agent is discharged and then the electrolytic solution of another plating agent is used in the same electrolytic tank. Therefore, the electrolytic tank was thoroughly cleaned and cleaned before draining one solution and injecting another solution to prevent different solutions from mixing.

This lowers the efficiency of the production line and thus raises the cost of the electrolytic treatment process.

Therefore, the main object of the present invention is to provide an electrolytic treatment apparatus that can solve the above-mentioned problems of the prior art.

Another object of the present invention is to provide an electrolytic treatment apparatus in which the electrolytic solutions can be exchanged easily and conveniently.

In order to achieve the above and other objects, the electrolytic treatment apparatus according to the present invention has an electrolytic tank composed of a first unit and a second unit, which are separated and combined. The first unit and the second unit are joined to each other when the electrolytic treatment is performed to form a single electrolytic tank. On the other hand, the first unit and the second unit can be replaced with different units, respectively. This makes it possible to simply exchange the solution in the second unit by discharging the solution in the second unit used previously and replacing the second unit with another unit containing another solution without having to clean it.

An electrolytic treatment apparatus according to an aspect of the present invention comprises an electrolytic tank composed of first and second units formed by separating and forming an electrolytic cell for storing a passage through which a metal large piece passes and an electrolytic solution, Current supply means for supplying current during the electrolytic treatment, guide means for holding the metal pieces in the passage of the tank and driving the metal pieces through the electrolytic cell, and the means for incorporating and assembling them in the first and second units. Include.

The electrolytic solution can be exchanged by exchanging one or more of the first unit and the second unit constituting the electrolytic cell.

The apparatus of the invention supports at least one of the first unit and the second unit of the tank so that the supported unit can move freely with respect to the metal piece between the first working position and the second exchange position. Include.

The apparatus of the present invention includes an actuator that is incorporated in a first unit of a tank to move between a first position where the first unit is assembled to a second unit to form a tank and a second position separate from the second unit.

The apparatus of the present invention comprises an electrolytic solution supply and discharge means for supplying an electrolytic solution into and withdrawing an electrolytic solution therefrom. The electrolytic solution supply and discharge means comprise a movable portion and a fixed portion incorporated therein for moving with the conveyer, the movable portion being connected with the fixed portion when the conveyer is in the first working position. The electrolytic solution supply and discharge means includes a coupling unit for coupling the movable portion and the fixed portion separately in a watertight manner. The coupling unit includes a sealing member in which the inner compartment is maintained at a static pressure high enough to form a watertight seal between the movable portion and the fixed portion in connection with the air pressure source.

According to another aspect of the present invention, there is provided an electrolytic treatment apparatus comprising: an electrolytic tank composed of first and second units formed by separating and forming an electrolytic cell for storing a passage through which a metal piece passes and an electrolytic solution; A current supply means for supplying a current in the tank, the metal piece being held in the passage of the tank, the metal piece being driven through the electrolytic cell, and connected to at least one of the first and second units so as to correspond to the corresponding one of the first and second units. Guide device means comprising lifting means for moving one relative to another unit, and lifting means incorporated in the first and second units to guide movement of one of these units relative to the other unit so that they are assembled and disassembled It includes.

The elevator means is moved away from the metal opposing passage to carry at least one of the first and second units. The elevator means is mobilely mounted on a frame comprising a stop member configured to contact the opposite portion of the elevator means for centrally positioning the electrolytic tank with respect to the center line of the metal opposite passage.

The guiding means consists of a roller having a roller shaft which is rotated with it, the roller shaft being adapted to be driven by a drive motor. The roller shaft is detachably engaged with the drive shaft of the drive motor when the elevator means and at least one of the first and second units are in an operating position where the electrolytic tank is centered with respect to the centerline of the metal opposed passage. The elevator means are arranged such that the shaft of the roller is aligned with the axis of the drive shaft while the elevator conveys the electrolytic tank to the working position. The roller shaft and the drive shaft are adapted to be engaged in a single operation.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to describing a preferred embodiment of the electrolytic treatment apparatus according to the present invention, the general structure of an electrogalvanized line will be described to aid in understanding the present invention.

As can be seen from FIG. 1, it is continuously supplied from the counter roller 21a wound by the distribution roller 21 of the metal counter piece 11. The continuous metal counterpart 11 supplied by the counterpart roll 21a is cut at its front end in the cutting section 22 to be connected to the end of the preceding counterpart. The front end of the counter piece is then connected to the rear end of the preceding counter piece in the weld section 23 to form a single continuous counter piece.

This counterfeit is fed to the treatment sections 25, 26, 27, 28 and 29 through the louver section 24. The metal piece is bent through the louver section 24 as shown. The louver sections 24 are treated sections 25, 26, 27, 28 and 29 even if the movement of the metal counterpart temporarily stops in the weld section 23 to connect the leading and following counterparts. It is possible to uniformly supply the metal counterpart 11 through). In other words, the louver section 24 serves to accumulate the metal pieces 11 fed through the weld section 23.

Treatment sections 25 and 26 constitute pretreatment parts such as degreasing, pickling, washing and the like. The treatment sections 27 and 28 constitute a plating portion for performing electroplating. The treatment section 29 constitutes a post treatment portion which performs cleaning and other necessary treatments after plating.

An electrogalvanized metal piece 11 through treatment sections 25, 26, 27, 28 and 29 is provided with a tension roller through louver section 30 and cutting section 31. Wound in 32). In the cutting section 31 the metal piece 11 is cut to an appropriate length or set length.

Suitable embodiments of the electrolytic treatment apparatus according to the invention can be used in one or both of the treatment sections 27 and 28.

2A, 2B, 3, and 4 illustrate suitable embodiments of the electrolytic treatment apparatus according to the present invention that can be used in treatment sections 27 and 28. The electrolytic treatment apparatus includes an electrolytic tank unit 100 mounted on the frame 200.

The electrolytic tank unit 200 includes a tank housing 102 that is separated into an upper portion 104 and a lower portion 106. The upper portion 104 includes a vertical wall 104a that forms a rectangular or square space that is covered by the ceiling 104b. The upper portion 104 has a pair of downward extensions 104c extending downward from the lower ends of the pair of opposed vertical walls 104a. The lower cover member 108 is fixed to the ceiling 104b of the upper portion 104 and has vertical walls 108a.

The lower portion 106 also has vertical walls 106a that form a rectangular or square space that corresponds to the space defined by the vertical walls 104a of the upper portion 104. The vertical walls 106a are coupled to the vertical walls 104a of the upper portion 104 to form an electrolytic tank receiving space 110 therein. The lower portion 106 also has a pair of upward extensions 106b extending upward from the top of the pair of opposed vertical walls 106a. The upward extensions 106b are located adjacent to the edges of the downward extension 104a of the upper portion 104 and the corresponding vertical wall 106a when the upper portion 104 is coupled to the lower portion 106. . The lower portion 106 houses the electrolytic solution tank 112b in its interior space 110.

The electrolytic solution tank 112 has a pair of side walls 112a and a bottom wall 112b. The bottom wall 112b is curved as shown in the longitudinal cross-sectional view in FIGS. 3 and 4 to form a hemispherical solution tank. The electrolytic solution tank 112 is filled with an electrolytic solution for electrolytic treatment.

The upper portion 104 supports the main roller 114. The main roller 114 has a central axis of rotation 114a that rotates with it. This axis of rotation 114a passes through a pair of openings formed in the downward extension of the upper portion 104 and has an axial extension 114b at one end thereof. Likewise, the pair of conductive rollers 116 of electrically conductive material each have an axial axis of rotation 116a. The axis of rotation 116a of each conductive roller 116 rotates with this conductive roller and is supported by the upward extension 106b. Each rotation shaft 116a has an extension 116b that passes through an opening formed in the upward extension. The extension 116b lies parallel to the extension 114b of the axis of rotation 114a of the main roller 114. The lower portion 106 of the tank housing 102 is mounted to a movable base 118 located on the wheel 120. The wheel 120 allows the movable base 118 along with the lower portion 106 to move along the horizontal member 202 of the frame 200. The movable base 118 has a guide bar member 122 extending upward. The upper portion 104 has a slide 124 slidably engaged with the member to vertically move along the guide bar member 122. Slide 124 has an extension 126. The hydraulic cylinder 128 is also fixed to the movable base 118 and has a working rod 130 connected to the extension 126 of the slide cycle 124. The hydraulic cylinder 128 actuates the slide period vertically to principally move the upper portion 104 relative to the lower portion 106.

The electric motor 132 is mounted to the horizontal portion 204 of the frame 200. The electric motor 132 has drive shafts 132a and 132b. The drive shaft 132a of one electric motor 132 is connected to the extension 114b of the rotation shaft 114a of the main roller 114 during the electrolytic treatment. Likewise, the drive shafts 132a of the electric motor 132 are connected to respective corresponding extensions 116b of the rotation shaft 116a of the conductive roller 116.

As shown in detail in FIGS. 3 and 4, the guide rollers 134 are provided on both sides of the tank housing 102. The guide roller 134 guides the metal piece 11 to be introduced into the electrolytic tank unit 100 through the inlet 136 formed in the tank housing 102 and discharged through the outlet 138. The electrolytic solution tank 112 has the solution supply port 112c and the discharge port 112b in the bottom wall 112b. The solution supply port 112c is connected to a solution supply pipe 140 connected to an electrolytic solution supply source (not shown) through a fixed tube 142 fixed to the frame 200 as shown in FIGS. 2A and 2B. Similarly, the drain hole 112d is connected to the drain pipe 144 connected to the drainage channel (not shown) through the fixed management 142.

5 to 7 show a suitable structure of the pipe joint for connecting the solution supply pipe 140 and the drain pipe 144 to the fixed pipe 142. This joint can be easily separated while ensuring a watertight seal. As shown in FIGS. 5 and 6, the fixed tube 142 has a coupling flange 142a at its upper end. Grooves in the horizontal plane of the engagement flange 142a receive a sealing member 146, such as a rubber 0-ring. The coupling flange 142a has a circular recess 142b for receiving the flange 140a of the solution supply pipe 140. Although not shown in the drawing, the drain pipe 144 is coupled to the fixed pipe 142 in the same manner as shown in FIGS. 5 to 7.

When the flange 140a of the solution supply pipe 140 is connected to the recess 142b of the coupling flange 142a of the fixed pipe 142, the sealing member 146 is elastically deformed so as to be firmly and completely in contact with the bottom of the flange 140a. To achieve a watertight seal.

7 shows in detail the structure of the sealing member 146 used in a suitable embodiment. As shown in FIG. 7, the sealing member 146 includes a hollow main portion 146a and an annular flange portion 146b that engages the recess 142b. Inside the main portion 146a, an air compartment 146c connected to an air pressure source (not shown) is formed through the air line 146d.

Although the illustrated embodiment has been shown to have a packing with an air compartment that makes a strong bond between the solution supply tube and the packing, a liquid compartment connected to a liquid pressure source may be used to use liquid pressure instead of air pressure. The tubes constituting the electrolytic solution supply circuit and the drainage circuit are preferably coated with a material having acid and oxidation resistance such as natural hard rubber when using a corrosive electrolytic solution having a relatively low pH. In addition, the air pressure in the compartment of the sealing member 146 can be set to about 1.5 times higher than the required sealing pressure.

Guide bar member 122 and slide 124 guide the upper portion 104 to move relative to the lower portion 106, and the upper portion to the lower portion when the upper portion and the lower portion are assembled correctly. Position it.

The electrolytic tank housing 102 constructed as described above performs electro zinc plating, electro tin plating, etc. using a specific solution suitable for carrying out the required electrolytic treatment in the assembled state shown in FIGS. 2B and 3. Used.

As can be seen in FIGS. 2B and 3, in the assembled state, the lower portion of the main roller 114 is immersed in the solution tank 112. Therefore, the large metal piece 11 located in the lower edge of the main roller 114 is pushed into the solution tank 112 and immersed in the electrolytic solution in the solution tank. When a potential difference occurs between the conductive roller 116 and the electrode 112g, a current flows through the electrolytic solution between the metal counterpart 11 and the electrode 112g to electrolytically treat the surface of the metal counterpart on the side in contact with the electrolytic solution.

During operation, the rotary shafts 114a and 116a of the main roller 114 and the conductive roller 116 are connected to the drive shaft 132a of the respective corresponding electric motor 132. do. Accordingly, the electric motor 132 rotationally drives the main roller 114 and the conductive roller 116 to supply the large metal piece 11 from the inlet 136 to the outlet 138 at a set speed.

A plating current is applied to one of the conductive rollers 116 to allow current to flow through the conductive rollers 116 to the metal piece 11. The current flowing through the metal piece 11 generates electroplating. As described above, the metal counterpart 11 is continuously moved through the solution bath 112, and the electrolytic treatment is uniformly performed over the entire metal counterpart.

If it is necessary to perform another electrolytic treatment, the hydraulic cylinder 128 is operated to raise the upper portion 104 along the guide bar member 122 through the slider 124. When the upper portion 104 moves upward in this manner, the main roller 114 supported by the downward extension 104c is raised away from the metal counterpart 11. This releases the downward pressure on the metal piece 11 as shown in FIGS. 2A and 4. In this embodiment, the outer periphery of the movable base 118 is in contact with a stopper member 202a extending upward from the horizontal member 202 of the frame, which stopper member 202a is in the upper portion 104 of the tank housing. ) And the lower portion 106 centered relative to the centerline of the metal opposite passage. In addition, the guide bar member 122 coupled with the stopper member 202a and the slider 124 serves to position the rotary shafts 114a and 116a with respect to the drive shaft 132a of the electric motor. .

In this position, the upper portion 104 and the lower portion 106 supported by the movable base 118 are free to move perpendicularly to the direction of movement of the metal piece. During the transverse movement of the movable base 118, the extensions 114b and 116b are disconnected from the drive shaft 132a of the electric motor 132. At the same time, the solution supply pipe 140 and the drain pipe 144 rise slightly upward to separate from the corresponding fixed pipe 142.

The movable base 118 is then moved to the position shown in FIG. 2B on the horizontal member 202 of the frame 200. In the position shown in FIG. 2B, the hydraulic cylinder 128 is operated to lower the upper portion 104 with the slider 124. This assembles the upper portion to the lower portion 106. In this position, the assembled solution tank housing 102 is removed and exchanged with another electrolytic tank unit 100 to exchange the electrolytic solution.

After replacing the electrolytic tank unit 100, the movable base 118 is laterally moved to the position shown in FIG. 2A again. In the initial phase of the movement, the hydraulic cylinder 128 is operated to raise the upper portion 104 to the proper position. Next, the movable base 118 is returned to the position shown in FIG. 2A. When the movable base 118 reaches the working position in FIG. 2A, the extension 116a of the conductive roller 116 is coupled to the drive shaft 132a of the electric motor 132. At the same time, the solution supply pipe 140 and the drain pipe 144 are coupled to the fixed pipe 142 in a watertight state.

The hydraulic cylinder 128 then moves the upper portion 104 downward to assemble the electrolytic tank housing 102.

8 and 9 show a modified embodiment of the electrolytic treatment unit. In this variant, the solution compartment 112 ', which holds the electrolytic solution bath, is located in the upper portion 104'. In this case, the additional sealing roller 150 forms an electrolytic cell compartment 112 'in which the electrolytic solution is filled.

The main roller 114 is in sealing contact with the sealing roller 150 when the upper portion 104 'and the lower portion 106' are assembled. Also in this variant, the conductive rollers 116 'are supported by the upper portion 104' and the main roller 114 'is supported by the lower portion 106'.

As can be seen in FIG. 8, an electrolytic solution compartment 112 'is formed between the main roller 114' and the arc ceiling 152 attached to the upper portion 104 '. The ends of the solution compartment 112 ′ are sealed by a sealing roller 150. The solution control chamber 112 ′ thus formed is connected to the electrolytic solution supply source and the drainage path through the electrolytic solution supply pipe 140 ′ and the drain pipe 144 ′ provided in the upper portion 104 ′.

This variant also makes it possible to exchange various electrolytic solutions without removing the metal counterparts from the metal counterpart passages and without thoroughly cleaning and cleaning the electrolytic solution bath.

Although the electrolytic treatment apparatus of a particular embodiment has been described so far, the present invention can be carried out in various ways. For example, FIG. 10 shows an apparatus for conveying the upper and lower portions of the tank housing 102 separately. Here, the lower portion 106 is mounted on the movable base 118 ′ with the wheels 120. The movable base 118 ′ can move laterally along the metal opposite passage along the lower horizontal member 202 _L of the frame as in the embodiment described above.

Upper portion 104 is suspended from conveyer 160 with wheels 162. The conveyer 160 is mounted on the upper horizontal member 202 _U of the frame 200 so as to be able to move in the transverse direction of the metal opposed passage along the upper horizontal portion of the frame. For example, one or a plurality of actuators 164 each including a hydraulic cylinder are attached to a carrier in which a downwardly extending operating rod 166 is incorporated. The upper portion 104 of the tank housing 202 is connected to the lower end of the actuation rod 166 via the bracket 168.

In the structure of this modified embodiment, the upper portion 104 can be moved in perspective with respect to the lower portion 106 by the actuator 164 and laterally moved relative to the metal opposite passage separately from the lower portion 106. Can be.

Accordingly, modifications to the illustrated embodiments that can be practiced within the principles of the invention as set forth in the claims appended hereto and all other possible embodiments are also included in the invention.

Claims (19)

In the radical type electrolytic treatment apparatus which electrolytically treats metal fragments by making an electrolytic solution pass a current, the said electrolytic treatment apparatus carries out electrolytic treatment by holding the metal fragments 11 between them, and each isolate | separates from the metal fragments Electrolytic treatment apparatus comprising a first unit and a second unit configured to be movable relative to each other as possible. 2. The method of claim 1, wherein the first unit comprises a first guiding means, such as a main roller 114 for guiding the metal piece and a second guiding means, such as the conductive roller 116, for guiding the metal piece. Wherein the first guide means is supported by the first unit and held in contact with one of the upper and lower surfaces of the metal piece during the electrolytic treatment and the second guide means is supported by the second unit and the metal rod during the electrolytic treatment An electrolytic treatment apparatus characterized by being held in contact with the other of the upper and lower surfaces of the bias. 3. The lower or upper portion of claim 2, wherein the first unit has a first housing portion, such as the upper or lower portion 104 or 106, which supports the first guide means, and the lower or upper portion, wherein the second unit supports the second guide means. And a second housing portion, such as 106 or 104). 4. The electrolytic apparatus according to claim 3, wherein the electrolytic treatment apparatus moves one of the first unit and the second unit relative to the other so that the first guide means and the second unit are brought into contact with the metal opposing pieces. Each of the first unit and the second unit releases contact with the metal counterpart from the working position in which the counterpart is pushed vertically and the second guide means pushes the metal counterpart in the vertically opposite direction by contact with the metal counterpart. Electrolytic treatment device comprising actuating means such as a hydraulic cylinder (128) and an actuator (164) for moving to a work preparation position. The method of claim 4, wherein the first unit includes a first tank portion such as a cover member 108 supported by the first housing portion, and the second unit includes a second tank portion supported by the second housing portion, And the first and second tank units constitute an electrolytic tank unit (100) for holding an electrolytic solution. 6. The method of claim 5, wherein one of the first and second guide means comprises a pair of up or down conductive rollers 116 having axes parallel to one another, wherein the other of the first and second guide means is in electrolytic treatment. A main roller 114 positioned between the upper or lower conductive rollers and parallel to the upper or lower conductive rollers, wherein the upper and lower rollers are spaced apart from each other at an interval through which the main roller can pass vertically; And an actuating means such as a hydraulic cylinder (128) and an actuator (164) are configured to vertically move one of the first and second units. 7. The actuating means of claim 6, wherein the actuating means places the upper unit of the first unit and the second unit on the lower unit and operates the first and second units when the first and second units are in the working position. And an actuating means such as an actuator (164) and an actuator (164) for raising the upper unit from the lower unit to move the position from the position to the ready position. 8. The movable base (118, 118) according to claim 7, wherein the electrolytic treatment apparatus includes a support structure such as frame 200, and a unit below is installed on the support structure and is movable in a direction parallel to the axes of the upper and lower rollers. ') And the wheel (120). 9. The support structure according to claim 8, characterized in that the support structure comprises an outer guide roller 134 for holding the metal piece higher than the guide means of the underlying unit when the first and second units are in the ready state. Electrolytic treatment device. 10. The method of claim 9, wherein one of the first and second units comprises a first tube, such as feed tube 140, having a first end portion, such as flange 140a, wherein the support structure, such as frame 200, comprises air. Fixed tube 142 having a second pipe end, such as flange 142a, which is configured to form a hydraulic compartment, such as compartment 146c, and is coupled to the first pipe end by a sealing member 146 that is expanded by the hydraulic pressure in the compartment. Electrolytic treatment apparatus comprising a second tube such as. 11. The method of claim 10, wherein the first and second pipe ends of the first pipe and the second pipe each form an outward flange and the sealing member 146 is fixed to the flange of the second pipe, The flange of the tube and the sealing member position the flange of the first tube in the recess 142b formed in the flange of the second tube so that the liquid tight seal between the first tube and the second tube without the need to tighten the flanges 140a, 142a. Configured to make a connection, the flange of the second pipe 142a being secured to the support structure, and the flange of the first pipe being connected to the flange of the fixed pipe by the weight of the unit when the first and second units are in working position. Electrolytic treatment apparatus, characterized in that the flange (140a) of the first tube is fixed to the unit in such a way that it is kept fixed. The method of claim 11, wherein the flange (140a) of the first tube is a solid structure without a bolt hole, the first tube is connected to an electrolytic tank, such as the cover member 108 and the electrolytic solution tank 112, and And an electrolytic solution is introduced between the second tubes. The method of claim 11, wherein the first pipe and the flange (140a) is fixed to the lower unit and has an annular downward facing, the sealing member 146 is fixed to the upper surface of the flange 142a of the second pipe And the support structure comprises a tube such as an air line (146d) for providing hydraulic pressure to a pressure compartment, such as an air compartment (146c), when the hydraulic pressure of the pressure compartment is increased. 12. An electrolytic treatment apparatus according to claim 11, wherein the support structure comprises drive means such as an electric motor (132) for driving the rollers of the first and second guide means. 10. The voltage between the upper and lower roll furnaces of claim 9, wherein the first unit comprises a main roller 114 and the second unit is a metal roller and an electrode and a conductive roller 116 for supplying current to the metal blade. Electrolytic treatment apparatus comprising an electrode for applying. The electrolytic treatment apparatus according to claim 15, wherein the axis of the main roller (114) is positioned lower than the axis of each of the upper and lower rollers when the first and second units are in the working position. 10. The method according to claim 9, wherein the upper unit of the first unit and the second unit is a metal roller and an electrode and a conductive roller 116 for supplying current to the metal blade, for applying a voltage between the upper and lower rollers. An electrolytic treatment apparatus comprising means such as an arc ceiling (152), wherein the unit at the bottom comprises a main roller (114). 18. The electrolytic treatment according to claim 17, wherein the highest point of the main roller 114 is located higher than each of the upper and lower rollers, which are the conductive rollers 116, when the first and second units are in the working position. Device. The upstream unit of the large-sized roll 21a, the cutting section 22, the welding section 23, the louver section 24, and the processing sections 25 and 26, which holds the upstream portion of the metal large piece 11, A downstream unit consisting of a treatment section 29 and a louver section 30 and a cutting section 31 and a tension roller 32 which hold the downstream portion, and an intermediate portion of the metal piece between the upstream and downstream portions, In the metal scrap processing system including the radical type electrolytic treatment apparatus used for the processing sections 27 and 28 which electrolytically treat a metal piece through a current, the said electrolytic treatment device is the intermediate | middle of the metal piece 11 A first unit and a second unit, each of which includes at least one roller 114 and 116 for carrying the electrolytic treatment with the portions held between them, each of which is moved relative to separate from the metal counterpart; Write down in the second unit One is moved vertically relative to the other so that the first and second units are driven by one of the rollers 114, 116 to push this metal piece downward by contact with the upper surface of the metal piece and the other roller Operation with hydraulic cylinders 128 and actuators 164 to move from the working position in contact with the lower surface of the bias to the work ready position where the respective guide rollers release contact with the large metal piece. A metal scrap processing system comprising a mechanism.

Images