JP2014503034A - Mesh electrode substrate end bending jig, mesh electrode substrate end bending method, mesh electrode substrate hanging jig, and mesh electrode substrate hanging method - Google Patents

Abstract

Disclosed is a mesh electrode base which can be suspended with good workability, without causing the load to be dispersed without locally constraining the mesh electrode substrate, and without causing wrinkles on the inner side of the electrode in the firing process. A material end bending jig, a bending method, a hanging jig and a hanging method are provided.
Formed on upper and lower ends of a mesh electrode substrate S are convex portions 21 and 23 and concave portions 20 and 22 that are alternately zigzag on the opposite side with respect to the front and back of the electrode substrate S. By doing this, the bending jig and bending method of the mesh electrode base material for bending the upper end portion and the lower end portion of the electrode base material S, and the electrode base material bent as described above are suspended without being restricted. At the same time, there are a hanging jig and a hanging method for a mesh electrode base that suspends a weight member from the lower end of the electrode base without restraining the electrode base.
[Selection] Figure 8

Description

  The present invention relates to a mesh electrode substrate end bending jig, a mesh electrode substrate end bending method, a mesh electrode substrate hanging jig, and a mesh electrode substrate hanging method. is there.

  In the electrode for chlorine generation such as salt electrolysis, cathode, copper foil, metal extraction, metal plating and other anodes for oxygen generation, cathode or water electrolysis, anode used for other electrolysis such as water treatment, cathode, etc. An expanded metal mesh electrode base material in which a cut is formed in a flat plate and is stretched to provide a continuous diamond-shaped opening on the entire surface or a plain weave mesh electrode base material in which metal wires are knitted in a net shape is used. An electrode is manufactured by coating the surface with an electrocatalyst by a thermal decomposition method.

  In general, when manufacturing an electrode by coating the surface of an expanded metal mesh electrode substrate or plain woven mesh electrode substrate having an appropriate thickness with a thermal decomposition method, each step of etching, coating, and firing the electrode substrate However, in each process, work is performed in a state where the electrode base material is suspended using a hanging jig. At this time, the hanging jig to be used is composed of an upper jig for hanging the electrode base material and a lower jig which becomes a weight for steadying as needed. Moreover, the method of suspending is a method of opening a hole in the electrode base material, or welding a small piece with a suspension hole to the electrode base material and hooking it on a nail attached to the upper and lower suspension jigs, or a method of binding with a wire. Has been done.

  When producing an electrode by coating the surface of an expanded metal mesh electrode base material or plain woven mesh electrode base material having an appropriate thickness with a pyrolysis method, even if the above hanging method is applied, When there is a proper thickness and weight, and there is adequate rigidity, the base material can be easily bent during processing such as etching, coating, and baking in the pyrolysis method, and wrinkles and creases may remain. There were few.

  On the other hand, as an expanded metal mesh electrode base material in recent years, a thin expanded metal mesh electrode having a plate thickness of 0.1 to 0.3 mm and the same step width, or a wire diameter of 0.1 mm to 0.3 mm, A plain woven mesh electrode substrate having a nominal diameter of 30 to 50 has been used. The term “mesh” refers to the number of lines or stitches between 25.4 mm (1 inch).

  When producing an electrode by pyrolysis using such a thin expanded metal mesh electrode base material or a thin plain woven mesh electrode base material, the characteristics of the base material when the above-described suspension method is applied Therefore, the substrate is easily bent during etching, coating, baking, etc., and wrinkles and creases remain, so the final flatness and surface quality of the electrode can be improved. I couldn't keep it.

Moreover, in the case of a thin expanded metal mesh electrode substrate or a thin plain woven mesh electrode substrate, in the above manner of suspension, since the rigidity of the electrode substrate is very small, the suspension hole of the electrode substrate is The above methods and jigs cannot be used. As a solution to this problem, a method of dispersing the suspension load by constraining the end of the electrode base material with a surface is conceivable, but in this case, workability and work efficiency deteriorate, and the man-hour for restraint In addition to increasing the probability of occurrence, wrinkles and creases, especially in the firing process, not only around the confined electrode substrate edge, but also toward the inner side of the electrode, another problem that wrinkles occur as a result of thermal deformation Happens.
However, it has not been possible to find patent literature relating to this type of electrode substrate suspension.

  As a method for suspending, the method described in Patent Document 1 is disclosed as a method for suspending a semiconductor substrate. However, this method is a method for holding the semiconductor substrate horizontally, Thus, it cannot be used for the method of hanging the electrode substrate.

JP 2000-109392 A

In order to solve these problems, the present invention does not hook the electrode substrate of the mesh electrode locally with a nail or bind it with a wire, but constrains it on the surface, thereby dispersing the suspension load and firing. In order to prevent wrinkles from forming inside the electrode in the process, and to improve the workability, the electrode substrate can be attached to a hanging jig. It is an object of the present invention to provide an end bending method, a mesh electrode substrate suspension jig, and a mesh electrode substrate suspension method.
In the present invention, the mesh electrode base material is an expanded metal mesh electrode base material in which a cut is formed in a flat plate, and this is extended, and a continuous diamond-shaped opening is provided on the entire surface, and a plain weave mesh electrode in which metal wires are knitted in a net shape Refers to the substrate.

In order to achieve the above object, the first problem-solving means in the present invention uses the two opposite sides of either one of the square-plate-shaped mesh electrode base material S as the upper end portion and the lower end portion, and the upper end portion. And the lower end portions of the base plate S protrude from the surface of the flat plate portion 10 and the bottom surface thereof protrudes from the surface of the flat plate portion 10 of the base material S. Two or more concave portions 20 and 22 projecting to the opposite side to the portions 21 and 23 are formed, and the convex portions 21 and 23 of the upper end portion and the lower end portion and the outer surfaces of the concave portions 20 and 22 are respectively the flat plate portions. A bending jig for a mesh electrode base material for bending the mesh electrode base material so as to have a zigzag shape alternately on the opposite side with respect to 10 front and back,
A folding table 1 having a rectangular flat plate portion 2 and having either one of two opposing sides of the rectangular flat plate portion 2 as an upper end portion and a lower end portion, and an upper end portion and a lower end portion of the folding table 1 Are provided with a pair of upper and lower upper mold members 3 and 4 in which concave portions 5 and 7 and convex portions 6 and 8 are alternately formed. The concave portions 5 of the upper and lower pair of upper and lower mold members 3 and 4 are provided. , 7 and the convex portions 16 and 18 and the concave portions 17 and 19 that are fitted to the convex portions 6 and 8, respectively, and a pair of upper and lower bar-shaped upper pressing member 13 and lower pressing member 14, In a state where the mesh electrode substrate S is placed on the folding table 1, the pair of upper and lower upper mold members 3 of the folding table 1, the concave portions 5 and 7 and the convex portions 6 and 8 of the lower mold member 4. And a pair of upper and lower bar-shaped upper pressing members 13 and convex portions 16 and 18 of the lower pressing member 14. Fine recesses 17, 19 are configured to have a press-forming device for a press as fitted to each,
The upper surfaces of the pair of upper and lower upper mold members 3 and 4 and 8 of the lower mold member 4 of the folding table 1 protrude from the surface of the rectangular flat plate-shaped portion 2 and the pair of upper and lower upper molds. The bottom of the concave portions 5 and 7 of the member 3 and the lower mold member 4 protrudes from the surface of the flat plate-like portion 2 to the side opposite to the convex portions 6 and 8, and is bent at the end of the mesh electrode base material To provide a jig.

  In order to achieve the above object, the second problem solving means of the present invention is provided with positioning pins 9 on the upper surfaces of both ends of the upper and lower pair of upper and lower mold members 3 and 4, and the rod-shaped upper pressing member. Openings 15 that fit into the positioning pins 9 are provided at both ends of the member 13 and the lower pressing member 14, and the openings 15 are fitted into the positioning pins 9, and the mesh electrode substrate S is pressed in the press molding. It is another object of the present invention to provide an end bending jig for a mesh electrode base material which can be bent at both upper and lower ends.

  In order to achieve the above object, the third problem-solving means in the present invention uses the above-described bending jig to set the upper ends of two opposite sides of either one of the rectangular plate-like mesh electrode base materials S. The upper surface protrudes from the surface of the flat plate-like portion 10 of the base material S, and the bottom surface thereof is the base material S. Two or more concave portions 20 and 22 projecting from the surface of the flat plate-like portion 10 to the opposite side of the convex portions 21 and 23 are formed, and the convex portions 21 and 23 and the concave portions 20 and 22 of the upper end portion and the lower end portion are formed. And providing a method for bending the end portions of the mesh electrode base material, in which the mesh electrode base material S is folded so that the outer surfaces of the flat plate portions 10 are alternately zigzag on the opposite side with respect to the front and back surfaces of the flat plate portion 10. is there.

In order to achieve the above object, the fourth problem-solving means in the present invention uses either one of the two opposite sides of the square-plate-like mesh electrode substrate S as an upper end and a lower end, and the upper end And the lower end portions of the base plate S protrude from the surface of the flat plate portion 10 and the bottom surface thereof protrudes from the surface of the flat plate portion 10 of the base material S. Two or more concave portions 20 and 22 projecting to the opposite side to the portions 21 and 23 are formed, and the convex portions 21 and 23 of the upper end portion and the lower end portion and the outer surfaces of the concave portions 20 and 22 are respectively the flat plate portions. A jig for suspending the mesh electrode substrate S that is zigzag alternately on the opposite side with respect to the front and back surfaces of 10,
An upper jig 26 having electrode holding members 28, 28 made of two parallel plates having a gap portion 27 having a gap slightly wider than the thickness of the flat plate-like portion 10 of the substrate S at the center; It comprises a lower jig 29 having weight members 31, 31 each having two parallel plates having a gap portion 30 at the center having a gap slightly wider than the thickness of the flat plate portion 10 of the substrate S. ,
The gaps in the gap portions 27 of the electrode holding members 28 and 28 are alternately formed on the upper end portion of the electrode base material S with the vicinity of the upper end portion of the electrode base material S sandwiched between the gap portions 27. The plurality of convex portions 21 and concave portions 20 are adjusted to a width that can hold the electrode substrate S without being constrained, and the gaps in the gap portions 30 of the weight members 31 and 31 are the gaps. In the state where the lower end portion of the electrode base material S is sandwiched between the portions 30, the weight members 31, 31 are provided on the convex portions 23 and the concave portions 22 formed alternately on the lower end portion of the electrode base material S of the mesh electrode. Is adjusted to a width that allows the electrode base material S to be suspended without being restrained, and the electrode base material S is suspended from the electrode holding members 28 and 28 without being restrained. Suspension of mesh electrode base material having a structure capable of steadying To provide a lower jig.

In order to achieve the above object, the fifth problem-solving means of the present invention uses either one of the two opposite sides of the square-plate-shaped mesh electrode substrate S as an upper end and a lower end, and the upper end And the lower end portions of the base plate S protrude from the surface of the flat plate portion 10 and the bottom surface thereof protrudes from the surface of the flat plate portion 10 of the base material S. Two or more concave portions 20 and 22 projecting to the opposite side to the portions 21 and 23 are formed, and the outer surfaces of the convex portions 21 and 23 of the upper end portion and the lower end portion and the concave portions 20 and 22 are respectively flat plate portions. A method for suspending a mesh electrode substrate that suspends a mesh electrode substrate S having a zigzag shape alternately on the opposite side with respect to 10 front and back,
Using the above-described suspension jig, the plurality of convex portions 21 and concave portions 20 alternately formed on the upper end portion of the electrode base material S are replaced with the electrode base material S by the electrode holding members 28 and 28. The electrode members S are suspended without being restrained, and the weight members 31 and 31 are not restrained by the convex portions 23 and the recessed portions 22 formed alternately at the lower end portion of the electrode substrate S of the mesh electrode. It is intended to provide a method for suspending a mesh electrode base material that is suspended to the electrode base material S to prevent the electrode base material S from swinging.

According to the present invention, by inserting the electrode base material into the hanging jig,
(1) Mounted with good workability
(2) Moreover, it was possible to disperse the entire electrode width without concentrating the suspended load that causes deformation and wrinkles on the suspended electrode substrate.
(3) Furthermore, since the electrode base material is not constrained and the suspension load is dispersed, it becomes easy to escape the thermal deformation in the longitudinal direction of the hanging jig in the firing step. Compared with the conventional method of restraining by welding, it was possible to suppress the generation of wrinkles inside the electrode.

The figure which shows the 1st process of one Example of the bending method of the mesh electrode base material using the bending jig | tool of the mesh electrode base material by this invention. The figure which shows the 2nd process of one Example of the bending method of the mesh electrode base material using the bending jig of the mesh electrode base material by this invention. The figure which shows the 3rd process of one Example of the bending method of the mesh electrode base material using the bending jig of the mesh electrode base material by this invention. The figure which shows the 4th process of one Example of the bending method of the mesh electrode base material using the bending jig of the mesh electrode base material by this invention. The perspective view which shows an example of the mesh electrode base material bent by the bending method of the mesh electrode base material by this invention. The perspective view which shows one Example of the upper jig | tool of the hanging jig | tool of the mesh electrode base material by this invention. The perspective view which shows one Example of the lower jig | tool of the hanging jig | tool of the mesh electrode base material by this invention. Process drawing which shows an example of the process of suspending the upper end part of a mesh electrode base material by the suspension method of the mesh electrode base material by this invention. Process drawing which shows an example of the process of hanging the upper end part of a mesh electrode base material, and the process of attaching a weight to a lower end part by the suspension method of the mesh electrode base material by this invention. The perspective view which shows the state which suspended the electrode base material using the hanging jig | tool of the mesh electrode base material by this invention. The partial front view of the plain weave mesh electrode which shows an example of the electrode base material used for this invention. The partial front view of the expanded metal mesh electrode which shows an example of the electrode base material used for this invention. The front view which shows an example before press molding of the bending method by the bending jig | tool of the mesh electrode base material by this invention. The front view which shows an example after press molding of the bending method by the bending jig | tool of the mesh electrode base material by this invention. The partial front view which shows an example of the mesh electrode base material bent by the bending method of the mesh electrode base material by this invention. The partial side view which shows an example of the mesh electrode base material bent by the bending method of the mesh electrode base material by this invention. The figure which shows an example of the hanging method of the electrode base material used for the comparative example.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(1) Bending jig and bending method FIGS. 1 to 5 are process diagrams showing one embodiment of a bending jig for a mesh electrode substrate and a bending method for a mesh electrode substrate according to the present invention. In FIG. 1, reference numeral 1 denotes a folding base having a flat plate-like portion 2 having at least two opposite sides parallel to each other, each having an upper end portion and a lower end portion, and the upper end portion and the lower end portion. Are provided with an upper die member 3 and a lower die member 4. The upper surfaces of the convex portions 6 and 8 of the pair of upper and lower upper mold members 3 and 4 protrude from the surface of the rectangular flat plate-shaped portion 2, and the pair of upper and lower upper mold members 3 and lower mold members 4, the bottom surfaces of the concave portions 5 and 7 protrude from the surface of the flat plate-like portion 2 to the side opposite to the convex portions 6 and 8. S is a square plate-like mesh electrode base material, 9 is an upper mold member 3 provided at the upper end portion of the flat plate portion 2 of the folding table 1 and a lower end portion of the flat plate portion 2 of the folding table 1. The positioning pins 10 provided at both ends of the lower mold member 4 are flat plate portions of the mesh electrode substrate S.
As shown in FIG. 2, the mesh electrode substrate S includes convex portions 6 and 8 extending upward from the surface of the plate-like portion 2 and concave portions 5 and 7 extending downward from the surface of the flat plate-like portion 2. Are mounted on the surface of the folding table 1 formed in a zigzag shape. Next, the upper pressing member 11 presses the upper end portion of the flat mesh electrode substrate S from the surface thereof to the surface of the upper end portion of the folding table 1 and the upper end portion of the mesh electrode substrate S is folded. The upper end of the turntable 1 is pressed against the inner surface of the convex portion 6 of the upper die member 3 having a zigzag shape, the upper end of the electrode base material S is bent upward by 90 degrees, and then lightly bent outward. The upper end portion of S is placed on the surface of the convex portion 6 of the upper die member 3 having a zigzag shape at the upper end portion of the folding table 1, and the lower end portion of the mesh electrode substrate S is moved by the lower pressing member 12. The convex portion 8 of the zigzag lower mold member 4 at the lower end of the folding table 1 is pressed against the surface of the lower end of the folding table 1 from the surface and the lower end of the square-plate-shaped mesh electrode substrate S is pressed. Pressing against the inner surface, the lower end of the electrode substrate S is 90 degrees After bending towards bending gently outwardly, placing the lower portion of the mesh-like electrode substrate S on the surface of the convex portion 8 of the lower mold member 4 of the zigzag shape of the lower end portion of the bent base 1.
Instead of using the upper pressing member 11 and the lower pressing member 12, a flat plate that fits between the upper mold member 3 and the lower mold member 4 may be inserted.

  Next, as shown in FIG. 3, the openings 15 provided at the ends of the pair of upper and lower bar-shaped upper pressing members 13 and the lower pressing member 14 from above the electrode substrate S are formed on the plate-like portion 2 of the folding table 1. It engages with positioning pins 9 provided on the upper die member 3 and the lower die member 4 provided at the ends. After that, the bar-shaped upper pressing member 13 having the zigzag-shaped concave portion 17 and the convex portion 16 that fit into the zigzag-shaped convex portion 6 and the concave portion 5 of the upper mold member 3 at the end of the folding table 1 is fitted to each other. And the rod-like lower pressing member 14 having the zigzag-shaped concave portion 19 and the convex portion 18 that fit into the zigzag-shaped convex portion 8 and the concave portion 7 of the lower mold member 4 at the lower end portion of the folding table 1 are fitted to each other. Match. Then, the upper and lower ends of the electrode base material S are press-molded from the surfaces of the upper mold member 3 and the lower mold member 4 of the folding table 1, and the convex portions 21 and 23 at the upper end portion and the lower end portion are formed. And the mesh electrode base material is bent so that the outer surfaces of the recesses 20 and 22 are alternately zigzag on the opposite side with respect to the front and back of the flat plate-like portion 10.

As shown in FIG. 4, press molding is performed as follows using an upper pressing movement roller 24 and a lower pressing movement roller 25 that translate to one end of each of the upper end portion and the lower end portion of the flat plate-like portion 2.
1) The bar-shaped upper pressing member 11 and the lower pressing member 12 are pressed against the electrode substrate S by the horizontal guide roller 40 and the vertical pressing roller 32 attached to the upper pressing moving roller 24 and the lower pressing moving roller 25, and FIG. 12 (b), at the boundary between the upper mold member 3 and the lower mold member 4 provided at the upper and lower ends of the flat plate portion 10 of the electrode base material S and the flat plate portion 2 of the electrode base material S, A right angle portion 34 shown in FIGS. 5 and 12B is formed.
2) Simultaneously with the formation of the right-angled portion 34, the bar-shaped upper pressing member 13 and the bar-shaped lower pressing member 14 are moved by the vertical pressing roller 33 and the horizontal guide roller 41 attached to the upper pressing moving roller 24 and the lower pressing moving roller 25. As shown in FIG. 5, the convex portions 21 and 23 extending above the surface of the plate-like portion 10 of the substrate S and the substrate S are pressed against the electrode substrate S, as shown in FIG. A mesh electrode substrate S having zigzag recesses 20 and 22 extending downward from the surface of the flat plate portion 10 is formed.

As one embodiment of the present invention, an electrode base material of a plain weave mesh electrode having a wire diameter of 0.1 mm to 0.3 mm and a mesh size of 30 to 50 was used, but the present invention is limited to this. is not.
Fig.11 (a) is a front view which shows an example before the press molding of the bending method of the mesh electrode base material by this invention. The upper end portion of the mesh electrode substrate S is inserted between the upper mold member 3 and the upper pressing member 13 provided at the upper end portion of the flat plate-like portion 2.
FIG.11 (b) is a front view which shows an example after the press molding of the bending method of the mesh electrode base material by this invention.
The inner width (a) of the concave portion 5 of the upper mold member 3 is about 100 mm to 200 mm, and the outer length (b) of the concave portion 5 of the upper mold member 3 is +20 mm to the inner width (a) of the concave portion 5. About 50 mm, the height (h) of the irregularities is preferably about 3 mm to 10 mm, and the length (P) between the centers of the irregularities is preferably about 250 mm to 350 mm.
Since the outer length (b) of the concave portion 5 of the upper mold member 3 is about +20 mm to 50 mm of the inner width (a) of the concave portion 5, it is provided at the upper end portion of the flat plate-like portion 2 by press molding. The upper end portion of the mesh electrode substrate S inserted between the upper mold member 3 and the upper pressing member 13 is extended at the end in the recess 5 of the upper mold member 3, and is shown in FIG. So that it is molded diagonally.
The fitting state of the lower mold member 4 provided at the lower end portion of the flat plate-like portion 2 and the lower pressing member 14 has the same configuration, and the lower mold member 4 provided at the lower end portion of the flat plate-like portion 2 The lower end portion of the mesh electrode substrate S inserted between the lower pressing member 14 is molded into the same shape as the upper end portion of the mesh electrode substrate S.

The upper mold member 3 provided at the upper end portion of the flat plate-like portion 2 and the lower mold member 4 provided at the lower end portion of the flat plate-like portion 2 of the bending jig for the mesh electrode substrate according to the present invention are preferably aluminum. The material of the rod-shaped upper pressing member 13 and the rod-shaped lower pressing member 14 may be impact resistant vinyl chloride or aluminum. However, flexible impact-resistant vinyl chloride is suitable for press processing by simple roller movement, and was applied to this trial production. On the other hand, since aluminum has high rigidity and press molding as described above is not easy, a press device that presses the entire jig at a time is required.
In the case of stainless steel, since the degree of machining in the thickness direction is large from the jig size, the amount of thermal deformation is large, and the upper mold member 3 provided at the upper end of the flat plate portion 2 and the lower end of the rectangular flat plate portion 2 It is not suitable for the lower mold member 4 and the pair of upper and lower bar-shaped upper pressing members 13 and the lower pressing member 14 provided in the section.

(2) Hanging jig and hanging method FIGS. 6 to 9 show a hanging jig for a mesh electrode substrate according to the present invention and a method for hanging a mesh electrode substrate using the hanging jig. It is process drawing which shows one Example.
FIG. 6A shows an example of the upper jig 26 of the hanging jig according to the present invention. The gap in the gap portion 27 of the electrode holding members 28, 28 is between the gap portions 27. Without constraining the electrode base material S by the plurality of convex portions 21 and the concave portions 20 alternately formed on the upper end portion of the electrode base material S with the vicinity of the upper end portion of the electrode base material S sandwiched in between The width is adjusted so that it can be held. That is, the plate-like portion of the electrode substrate S formed on the upper end portion of the electrode substrate S by sandwiching the plate-like portion 10 of the electrode substrate S of the mesh electrode between the gap portions 27 of the electrode holding members 28, 28. The upper part which hold | maintains the recessed part 20 and the convex part 21 which have the convex part 21 which protrudes from the surface of the part 10, and the recessed part 20 which protrudes from the surface of the flat plate-shaped part 10 of the said base material S in the opposite direction to the convex part 21 in zigzag shape. It is configured to be suspended from the jig 26.
FIG. 6B shows an example of the lower jig 29 of the hanging jig according to the present invention. The gap in the gap 30 of the weight members 31, 31 is between the gaps 30. In a state where the lower end portion of the electrode base material S is sandwiched, the weight members 31 and 31 are placed in the convex portions 23 and the concave portions 22 alternately formed on the lower end portion of the electrode base material S of the mesh electrode, and the electrode base material S The width is adjusted so that it can be hung without being restrained. That is, the flat plate-like portion 10 of the electrode substrate S of the mesh electrode is sandwiched in the gap portion 30 and protrudes from the surface of the flat plate-like portion 10 of the electrode substrate S formed at the lower end portion of the electrode substrate S. From the two plates of the lower jig 29 to the concave portion 22 and the convex portion 23 having a convex portion 23 and a concave portion 22 projecting in the opposite direction to the convex portion 23 from the surface of the flat plate-like portion 10 of the substrate S. The weight members 31, 31 are configured to be suspended.

  7 and 8, the rectangular flat plate-like portion 10 of the electrode base material S is sandwiched between the gap portions 27 of the electrode holding members 28 and 28 of the upper jig 26, and the electrode base material S is not restrained. The zigzag-shaped concave portion 20 and the convex portion 21 formed on the upper end portion of the electrode base material S are suspended, and further, the rectangular base plate shape of the electrode base material S is formed in the gap portion 30 of the weight members 31 and 31 of the lower jig 29. A zigzag-shaped concave portion 22 and a convex portion 23 formed at the lower end portion of the electrode base material S, sandwiching the portion 10, To do. FIG. 9 is a perspective view showing a state in which the electrode substrate S is suspended using the mesh electrode substrate suspension jig comprising the upper jig 26 and the lower jig 29 according to the present invention as described above. is there.

  The zigzag-shaped concave portion 20 and the convex portion 21 formed on the upper end portion of the electrode base material S are not restrained, and the upper jig 26 for hanging the convex portion 21 and the lower end portion of the electrode base material S are formed. The lower jig 29 for preventing the electrode substrate S from swinging without constraining the electrode substrate S with the zigzag recesses 22 and the protrusions 23 may have other various structures.

As described above, the electrode substrate suspension jig of the mesh electrode according to the present invention is less likely to cause wrinkles or breakage during suspension and thermal deformation during the firing process. (1) While ensuring workability (2) The suspension load can be dispersed, and (3) thermal deformation in the firing step can be suppressed.
This hanging jig has a structure that only inserts the electrode base material, so that the electrode base material does not slip through the gap of the hanging jig during electrode manufacture, that is, the press molding part at the end of the electrode base material is deformed. The gaps 27 and 30 are appropriately narrow so that the force is not applied and the insertion work is performed smoothly. The gaps 27 and 30 need only be intervals that allow the rectangular flat plate-like portion 10 of the electrode base material S to enter smoothly. If the intervals are too wide, the electrode A may fall from the hanging jig. Usually, about 0.5 mm to 1.5 mm is preferable.
Similarly to the above, the electrode holding members 28 and 28 that contact the right-angled portion 34 of the press-molded portion at the end of the electrode base material S so as not to apply much force to deform the press-formed portion at the end of the electrode base material S. The corner portions of the weight members 31, 31 are preferably formed at right angles without chamfering. On the other hand, the insertion port is preferably chamfered so that the electrode substrate S can be inserted smoothly.

  Next, examples of the present invention will be described, but the present invention is not limited thereto.

<Example 1>
As the mesh electrode (target electrode), the small-diameter plain woven mesh electrode shown in FIG. 10A was used.
Material of electrode substrate S: Ni
Size of the electrode substrate S: horizontal x vertical (mm) 2500 x 1000
Wire diameter of electrode substrate: φ0.20 mm (see FIG. 10A)
Mesh call ^{Note 1)} : 35
Note 1): The number of lines or stitches between 25.4 mm (1 inch) This mesh electrode is subjected to the method shown in FIGS. Then, by the method shown in FIG. 6 to FIG. 9, the mesh electrode substrate was suspended using a hanging jig.
A plurality of these pieces were put on a hanger and subjected to the following processing.
・ Etching: HCl × 3 minutes ・ Coating solution: Platinum group metal salt solution ・ Firing Firing temperature: 400-600 ° C.
Firing time: 10 minutes to 40 minutes
<Note> The bent part of the electrode end is cut off in the final process.
The quality of the end bent shape of the electrode substrate is affected by the basic dimensions of the bending jig described below. In order to obtain the basic dimensions, two types of bending jigs were prepared, the ends of the electrode base material were actually bent, and the two were compared (see FIG. 11).
Table 1 shows the basic dimensions of the bending jig.

  As a result, the result of bending the electrode substrate end using the above bending jig is that the sample A having a longer P (pitch) has a smaller number of bends per unit length, so that wrinkles are generated due to bending. Was less than Sample B. From this result, the dimension of sample A was made the basic dimension of the bending jig.

Moreover, as a result of the above, the reference shape ratio of the hanging jig from the sample A was as follows. In addition, an example of the electrode base material edge part formed with an electrode base material bending jig | tool is shown to Fig.12 (a) and FIG.12 (b). At this time, A is the pitch from the peak to the valley of the electrode substrate formed by bending, A ′ is the length after bending of A, B is the longitudinal dimension of the bent portion, and C is perpendicular to the length of the bent portion. Dimension
-Stretch rate (= A '/ A): about 1.00745
・ Bending ratio (= A: B: C): 155 (1): 15 (0.0968): 6 (0.0387)
・ Bending angle: 90 °
However, in this prototype, a stable suspended state was maintained in all processes including the firing process. Thereby, the validity of adopting these values as the standard of the ratio for determining the shape of the electrode base material bending jig was obtained.

<Example 2>
As a result of using an expanded metal mesh electrode as shown in FIG. 10 (b) instead of the fine-diameter plain woven mesh electrode of FIG. 10 (a) used in Example 1 as the mesh electrode, Similar results were obtained. At this time, in FIG. 10B, a mesh having a plate thickness T of 0.1 to 0.3 mm and a step width W of 0.1 to 0.3 mm was used.

<Comparative Example 1>
As shown in FIG. 13, a hanging jig 35 is used for the thin plain woven mesh electrode of FIG. 10 (a) and the expanded metal mesh electrode shown in FIG. 10 (b) used in Example 1 and Example 2. A plurality of holes 36 were drilled, and the electrode substrate S was suspended through a wire or hook 37 in the plurality of holes 36 of the hanging jig 35, and etching, coating, firing, etc. were performed. As a result, deformation and wrinkles occurred in the suspended portion, deformation during firing, and vibration during work occurred, and it could not be used as an electrode.

  According to the end bending jig of the mesh electrode base material, the suspension jig of the mesh electrode base material, and the method of hanging the mesh electrode base material according to the present invention, the electrode base material is inserted into the suspension jig. It is mounted with good workability, and it can be distributed over the entire width of the electrode without concentrating the suspension load that causes deformation and wrinkles on the suspended electrode substrate, and the electrode substrate is not restrained. In addition, by dispersing the suspension load, it is possible to release the thermal deformation in the longitudinal direction of the suspension jig in the firing process and to suppress the formation of wrinkles on the inner surface of the electrode, so it can be applied to various mesh electrodes. Can do.

S: Square plate-like mesh electrode substrate 1: Folding table 2: Square flat plate part 3 of folding table 1: Upper die member 4: Lower die member 5: Concave part 6: Convex part 7: Concave part 8: Convex part Part 9: Positioning pins 10 provided at both ends of the upper mold member 3 provided at the upper end of the rectangular flat plate part 2 and the lower mold member 4 provided at the lower end part of the square flat plate part 2 Flat plate shape of the electrode substrate S Part 11: Upper pressing member 12: Lower pressing member 13: Rod-like upper pressing member 14: Rod-like lower pressing member 15: Openings provided at both ends of the upper pressing member 13 and the lower pressing member 14 to engage with the positioning pin 9 Part 16: Convex part 17: Concave part 18: Convex part 19: Concave part 20: Concave part 21: Convex part 22: Concave part 23: Convex part 24, 25: Pressing moving roller 26: Upper jig 27: Gap part 28, 28: Electrode Holding member 29: Lower jig 30: Gap part 31, 31: Weight member 32: Vertical prestro Error 34: right-angled portions 35: the conventional suspension jig 36: hanging jig plurality of drilled the hole 37: wire or hook 40: horizontal guide roller 41: horizontal guide rollers

Claims (5)

Each of the two opposite sides of one of the square-plate-shaped mesh electrode base materials S is set as an upper end portion and a lower end portion, and the upper end portion and the lower end portion are respectively bent so that the upper surface thereof is the base material S. Convex portions 21 and 23 projecting from the surface of the flat plate-like portion 10, and concave portions 20 and 22 whose bottom surfaces project from the surface of the flat plate-like portion 10 of the substrate S to the opposite side of the convex portions 21 and 23, respectively. The outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper end portion and the lower end portion are respectively formed in a mesh shape so as to be alternately zigzag with respect to the front and back of the flat plate portion 10. A bending jig for a mesh electrode substrate for bending an electrode substrate,
A folding table 1 having a rectangular flat plate portion 2 and having either one of two opposing sides of the rectangular flat plate portion 2 as an upper end portion and a lower end portion, and an upper end portion and a lower end portion of the folding table 1 Are provided with a pair of upper and lower upper mold members 3 and 4 in which concave portions 5 and 7 and convex portions 6 and 8 are alternately formed. The concave portions 5 of the upper and lower pair of upper and lower mold members 3 and 4 are provided. , 7 and the convex portions 16 and 18 and the concave portions 17 and 19 that are respectively fitted to the convex portions 6 and 8, respectively, and a pair of upper and lower bar-shaped upper pressing members 13 and 14, respectively. In a state where the mesh electrode substrate S is placed on the folding table 1, the pair of upper and lower upper mold members 3 of the folding table 1, the concave portions 5 and 7 of the lower mold member 4, and the convex portions 6, 8, the pair of upper and lower bar-shaped upper pressing members 13 and the convex portions 16, 18 and 18 And recesses 17 and 19 are configured to have press molding means for pressing so as to be fitted to each other,
The upper surfaces of the pair of upper and lower upper mold members 3 and 4 and 8 of the lower mold member 4 of the folding table 1 protrude from the surface of the rectangular flat plate-shaped portion 2 and the pair of upper and lower upper molds. The bottom of the concave portions 5 and 7 of the member 3 and the lower mold member 4 protrudes from the surface of the flat plate-like portion 2 to the side opposite to the convex portions 6 and 8, and is bent at the end of the mesh electrode base material jig.   Positioning pins 9 are provided on the upper surfaces of both ends of the pair of upper and lower upper mold members 3 and 4, and the positioning pins 9 are respectively disposed on both ends of the bar-shaped upper pressing member 13 and lower pressing member 14. The mesh according to claim 1, wherein an opening 15 to be fitted is provided, the opening 15 is fitted to the positioning pin 9, and the upper and lower ends of the mesh electrode substrate S can be bent in the press molding. End bending jig for electrode-like electrode substrate.   Using the bending jig according to claim 1 or 2, each of two opposite sides of a square-plate-like mesh electrode substrate S is defined as an upper end and a lower end, and the upper end and the lower end By bending each of the portions, the convex portions 21 and 23 whose upper surfaces protrude from the surface of the flat plate-like portion 10 of the base material S, and the bottom surfaces thereof are convex portions 21 from the surface of the flat plate-like portion 10 of the base material S, 23 and two or more recesses 20 and 22 projecting on the opposite side are formed, and the upper and lower projections 21 and 23 and the outer surfaces of the recesses 20 and 22 are the front and back surfaces of the flat plate 10, respectively. A method for bending an end portion of a mesh electrode base material, comprising bending the mesh electrode base material S so as to be alternately zigzag on the opposite side. Each of the two opposite sides of one of the square-plate-shaped mesh electrode base materials S is set as an upper end portion and a lower end portion, and the upper end portion and the lower end portion are respectively bent so that the upper surface thereof is the base material S. Convex portions 21 and 23 projecting from the surface of the flat plate-like portion 10, and concave portions 20 and 22 whose bottom surfaces project from the surface of the flat plate-like portion 10 of the substrate S to the opposite side of the convex portions 21 and 23, respectively. A mesh formed in a zigzag shape on the opposite sides of the front and back surfaces of the flat plate-like portion 10, the outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper end portion and the lower end portion. A jig for suspending the electrode substrate S,
An upper jig 26 having electrode holding members 28, 28 made of two parallel plates having a gap portion 27 having a gap slightly wider than the thickness of the flat plate-like portion 10 of the substrate S at the center; It comprises a lower jig 29 having weight members 31, 31 each having two parallel plates having a gap portion 30 at the center having a gap slightly wider than the thickness of the flat plate portion 10 of the substrate S. ,
The gaps in the gap portions 27 of the electrode holding members 28 and 28 are alternately formed on the upper end portion of the electrode base material S with the vicinity of the upper end portion of the electrode base material S sandwiched between the gap portions 27. The plurality of convex portions 21 and concave portions 20 are adjusted to a width that can hold the electrode substrate S without being constrained, and the gaps in the gap portions 30 of the weight members 31 and 31 are the gaps. In the state where the lower end portion of the electrode base material S is sandwiched between the portions 30, the weight members 31, 31 are provided on the convex portions 23 and the concave portions 22 formed alternately on the lower end portion of the electrode base material S of the mesh electrode. The width of the electrode base material S is adjusted so that the electrode base material S can be suspended without being restrained. Of a mesh electrode substrate characterized by having a structure Ri lower jig. Each of the two opposite sides of one of the square-plate-shaped mesh electrode base materials S is set as an upper end portion and a lower end portion, and the upper end portion and the lower end portion are respectively bent so that the upper surface thereof is the base material S. Convex portions 21 and 23 projecting from the surface of the flat plate-shaped portion 10, and concave portions 20 and 22 whose bottom surfaces project from the surface of the flat plate-shaped portion 10 of the substrate S to the opposite side of the convex portions 21 and 23, respectively. The mesh is formed such that the outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper end portion and the lower end portion are alternately zigzag on the opposite side with respect to the front and back of the flat plate portion 10. A method of suspending a mesh electrode substrate for suspending a electrode substrate S,
A plurality of convex portions 21 and concave portions 20 formed alternately on the upper end portion of the electrode base material S by using the hanging jig according to claim 4, and the electrode base material by the electrode holding members 28, 28. S is suspended without restraining, and the weight members 31 and 31 are placed on the convex portions 23 and the concave portions 22 formed alternately on the lower end portion of the electrode substrate S of the mesh electrode, and the electrode substrate S is A method for suspending a mesh electrode base material, wherein the electrode base material S is suspended without being restrained to prevent the electrode base material S from swinging.

Images