TWI494475B - Edge bending jig for mesh-type electrode substrate, edge bending method for mesh-type electrode substrate, hanging jig for mesh-type electrode substrate and hanging method for mesh-type electrode substrate - Google Patents

Description

Edge bending mold of mesh electrode substrate, edge bending method of mesh electrode substrate, hanging mold of mesh electrode substrate, and hanging method of mesh electrode substrate

The present invention relates to an edge bending mold for a mesh electrode substrate, a method for edge bending of a mesh electrode substrate, a hanging mold for a mesh electrode substrate, and a hanging method for a mesh electrode substrate.

In the anodes and cathodes for chlorine generation such as salt electrolysis, copper foil, metal smelting, metal plating, and other anodes for cathodes, cathodes, and other industrial electrolysis, such as anodes and cathodes used for electrolysis and water treatment, An expanded metal mesh electrode substrate provided with a slit in a continuous diamond shape or a flat woven mesh electrode substrate in which a metal wire is woven into a mesh shape is provided by providing a slit on a flat plate and rolling the entire surface. The surface of the electrode substrate was coated with an electrode catalyst by a thermal decomposition method to produce an electrode.

In general, when an electrode is formed by coating a surface of an expanded metal mesh electrode substrate or a flat woven mesh electrode substrate having a moderate thickness by thermal decomposition, an electrode substrate is required to be etched, Each step of coating and calcining is carried out in each step using a hanging mold to suspend the electrode substrate. At this time, the hanging die used is composed of a die above the suspension electrode substrate and a vertical die which is required to be used for vibration stop. Moreover, the suspension method is carried out by: opening a suspension hole in the electrode substrate, or welding the small piece having the suspension hole to the electrode substrate, and hanging it on the hanging hanger attached to the upper and lower sides The method of hooking the mold or the method of binding the wire.

When an electrode is coated by thermally decomposing a surface of an expanded metal mesh electrode substrate or a flat woven mesh electrode substrate having a moderate thickness to form an electrode, even if a suspension method as described above is applied, a moderate thickness is applied. In the case of weight, moderate rigidity, the substrate is easily bent in the etching, coating, firing, etc. of the thermal decomposition method, and the residual wrinkles and creases are less.

On the other hand, in recent years, as an expanded metal mesh electrode substrate, a thin metal expanded electrode having a plate thickness of 0.1 to 0.3 mm and a pitch of the same degree, or a wire diameter of 0.1 mm to 0.3 mm, is used. A flat woven mesh electrode substrate having a mesh size of 30 to 50. The mesh number of the mesh refers to the number of lines or meshes between 25.4 mm (1 inch).

When the thin metal expanded mesh substrate or the fine-grained flat woven mesh electrode substrate is used and the electrode is formed by thermal decomposition, the characteristics of the substrate are used when the suspension method as described above is applied. In terms of rigidity, the substrate is easily bent during the etching, coating, firing, and the like, and wrinkles and creases remain, so that the final flatness and surface quality of the electrode cannot be maintained.

Further, in the case of a thin expanded metal mesh electrode substrate or a fine-diameter flat woven mesh electrode substrate, as in the above suspension method, since the rigidity of the electrode substrate is very small, the electrode substrate is suspended. The lifting holes will be deformed and broken, and the above methods and molds cannot be used. As a solution to this problem, a method of dispersing the edge of the electrode substrate by the surface and thereby dispersing the suspended load may be considered. However, in this case, the workability and the work efficiency are deteriorated, and the constraint is imposed. Working hours and the increase in the probability of wrinkles and creases, especially In the calcination step, not only the edge of the electrode substrate to be restrained but also toward the inside of the electrode, other problems such as wrinkles may occur as a result of thermal deformation.

However, the patent document on the hanging of this electrode substrate could not be found.

Further, as a method of suspending a semiconductor substrate, the method disclosed in Patent Document 1 is disclosed as a method of hanging, but this method is a method for horizontally holding a semiconductor substrate, and cannot be used for an electrode such as the present invention. The method of hanging the substrate.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2000-109392

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrode substrate in which a mesh electrode is not partially hooked by a hook, and is not bound by a wire, but is restrained by a surface, thereby dispersing the suspended load, thereby In the calcination step, no wrinkles are formed on the inner side of the electrode, and the edge-bending mold and the mesh-shaped electrode substrate are bent at the edge of the mesh electrode substrate of the hanging mold by the electrode substrate. The hanging mold of the mesh electrode substrate and the hanging method of the mesh electrode substrate.

In the present invention, the mesh electrode substrate refers to an expanded metal mesh electrode substrate which is provided with a slit on the flat plate, which is rolled and provided with a continuous diamond-shaped opening on the entire surface, and woven the metal wire into a mesh shape. A flat woven mesh electrode substrate.

In order to achieve the above object, the first problem solving method of the present invention provides an edge bending mold for a mesh electrode substrate, which is used for arranging two sides of a quadrangular flat mesh electrode substrate S The upper edge and the lower edge are respectively formed, and the upper edge and the lower edge are respectively bent, thereby respectively forming two or more convex portions 21 and 23 whose upper surface protrudes from the surface of the flat portion 10 of the substrate S The bottom surface protrudes from the concave portion 20, 22 on the surface of the flat portion 10 of the substrate S toward the opposite side of the convex portions 21, 23, and the convex portions 21, 23 and the concave portions 20, 22 of the upper edge and the lower edge are formed. a curved bending die in which the mesh electrode substrate is bent to the opposite side to the mesh electrode substrate in a zigzag shape on the outer surface of the flat portion 10, respectively; The folding table 1 having the rectangular flat portion 2 and the opposite sides of the rectangular flat portion 2 are respectively defined as an upper edge and a lower edge; on the upper and lower edges of the folding table 1 The recesses 5, 7 and the protrusions 6 are alternately formed, 8 a pair of upper and lower mold members 3 and 4, and respectively provided with concave portions 5, 7 and convex portions 6, 8 respectively fitted to the upper and lower pair of upper mold members 3 and lower mold members 4, respectively a pair of convex portions 16 and 18 and a pair of upper and lower rod-shaped upper pressing members 13 and a lower pressing member 14 for loading the mesh electrode substrate S on the above-mentioned folding table 1 In the upper state, the upper and lower pair of bar-shaped upper portion pressing members 13 and the lower pressing members 14 are convex portions 16, 18 and recesses 17, 19 press forming means for pressing the recesses 5, 7 and the projections 6 and 8 of the lower pair of upper mold members 3 and lower mold members 4, respectively, in the above-mentioned bending table 1; The upper surfaces of the upper and lower pair of upper mold members 3 and the lower mold members 4 and 8 project from the surface of the rectangular flat portion 2, and the upper and lower pair of upper mold members 3 and the lower mold member The bottom surfaces of the recesses 5, 7 of the fourth portion project from the surface of the flat portion 2 toward the side opposite to the convex portions 6, 8.

In order to achieve the above object, the second problem solving means of the present invention provides an edge bending die of a mesh electrode substrate which is respectively formed at both ends of the upper and lower pair of upper mold member 3 and lower mold member 4. The positioning pin 9 is provided on the upper surface, and the opening 15 is fitted to the positioning pin 9 at both ends of the rod-shaped upper pressing member 13 and the lower pressing member 14, and the opening 15 is fitted to the positioning pin. 9. The upper and lower edges of the mesh electrode substrate S can be bent in the press forming process.

The third problem solving means in the present invention is to achieve the above object, and to provide a method of edge bending of a mesh electrode substrate using the above-mentioned bending mold: one of the square-shaped mesh electrode substrates S The opposite sides are respectively defined as an upper edge and a lower edge, and the upper edge and the lower edge are respectively bent, thereby forming two or more convex portions whose upper surfaces protrude from the surface of the flat portion 10 of the substrate S, respectively. 21, 23 and the bottom surface thereof protrude from the concave portion 20, 22 of the surface of the flat portion 10 of the substrate S toward the opposite side of the convex portions 21, 23, And the outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper edge and the lower edge are respectively bent to the opposite sides of the front surface and the back surface of the flat portion 10 to form a mesh electrode substrate S. Sawtooth shape.

The fourth problem solving method of the present invention is to achieve the above object, and to provide a hanging mold for a mesh electrode substrate, which is a mold for hanging a mesh electrode substrate S, the mesh electrode substrate In the S system, the opposite sides of the quadrangular planar mesh electrode substrate S are respectively defined as an upper edge and a lower edge, and the upper edge and the lower edge are respectively bent, thereby forming two or more upper surfaces thereof, respectively. The convex portions 21, 23 protruding from the surface of the flat portion 10 of the substrate S and the bottom surface thereof protrude from the concave portions 20, 22 of the surface of the flat portion 10 of the substrate S toward the opposite sides of the convex portions 21, 23. And the outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper edge and the lower edge are alternately formed in a zigzag shape on the opposite sides of the front surface and the back surface of the flat portion 10; The upper die 26 is formed by the electrode holding members 28 and 28 which are formed by two parallel plates having the gap portion 27 at the center, and the gap portion 27 has the above substrate. The thickness of the flat portion 10 of S is a little wide; the lower mold 29 has The hammer members 31 and 31 having two parallel plates of the gap portion 30 are formed, and the gap portion 30 has a smaller width than the thickness of the flat portion 10 of the substrate S; and has the following configuration: The gap between the gap portions 27 of the electrode holding members 28 and 28 is adjusted to attach the upper edge of the electrode substrate S In a state in which the gap portion 27 is interposed between the gap portions 27, the plurality of convex portions 21 and the concave portions 20 alternately formed by the upper edges of the electrode base material S can maintain the width of the electrode substrate S without restraint, and The gap between the gap portions 30 of the hammer members 31 and 31 is adjusted so as to be in the state in which the vicinity of the lower edge of the electrode substrate S is interposed between the gap portions 30, under the electrode substrate S of the mesh electrode. The convex portion 23 and the concave portion 22 which are alternately formed at the edges can suspend the width of the hammer members 31 and 31 without constraining the electrode substrate S, and the electrode holding members 28 and 28 hang the electrode substrate S without restraint. The vibration stop of the electrode substrate S becomes possible.

The fifth problem solving method of the present invention is to achieve the above object, and to provide a hanging method of a mesh electrode substrate: a hanging method of a mesh electrode substrate for hanging a mesh electrode substrate S, the net The electrode substrate S is formed by forming an upper edge and a lower edge on each of two sides of the quadrangular planar mesh electrode substrate S, and respectively forming the upper edge and the lower edge, thereby forming two The convex portions 21 and 23 whose upper surface protrudes from the surface of the flat portion 10 of the substrate S and the bottom surface thereof protrude from the opposite side of the convex portions 21 and 23 from the concave portion of the surface of the flat portion 10 of the substrate S. 20 and 22, wherein the convex portions 21 and 23 and the outer surfaces of the concave portions 20 and 22 of the upper edge and the lower edge are alternately formed in a zigzag shape toward the opposite side of the front surface and the back surface of the flat portion 10; The hanging mold is described as being suspended from the electrode substrate S by the electrode holding members 28 and 28 without constraining the electrode substrate S. a plurality of convex portions 21 and concave portions 20 which are alternately formed at the upper edge, and the convex portions 23 and the concave portions 22 which are alternately formed at the lower edge of the electrode substrate S of the mesh electrode are suspended from the electrode substrate S The hammer members 31 and 31 serve as the vibration stop of the electrode substrate S.

According to the present invention, by inserting the electrode substrate into the hanging mold,

(1) It can be installed with good workability,

(2) Further, the hanging load which is a cause of deformation and wrinkles may be concentrated on the suspended electrode substrate to be dispersed to cover the entire width of the electrode.

(3) Moreover, since the thermal deformation of the longitudinal direction of the hanging mold in the calcination step is easily released by unconstraining the electrode substrate and dispersing the suspended load, the electrode base is restrained by welding. Compared with the conventional method of the material, wrinkles can be suppressed from occurring inside the electrode.

Embodiments of the present invention will be described in detail below with reference to the drawings.

(1) Flexing die and bending method

1 to 5 are process diagrams showing an embodiment of a bending method of a mesh electrode substrate and a mesh electrode substrate according to the present invention. In Fig. 1, the component symbol 1 has a flat portion 2 in which at least two sides are parallel, and the two sides are respectively defined as an upper edge and a lower edge, and the upper and lower edges are provided on the upper and lower edges. The upper mold member 3 and the lower mold member 4. The upper surface of the upper and lower pair of upper mold members 3 and the lower mold members 4, 8 And protruding from the surface of the rectangular flat portion 2, and the bottom surfaces of the concave portions 5 and 7 of the upper and lower pair of upper mold members 3 and the lower mold member 4 project from the flat portion on the opposite side of the convex portions 6 and 8. 2 the surface. The component symbol S is a quadrangular flat mesh electrode substrate, and the component symbol 9 is attached to the upper edge of the flat portion 2 of the bending table 1 and the flat member 2 and the flat portion 2 provided on the folding table 1. A positioning pin provided at each of both ends of the lower edge mold member 4, the component symbol 10 is a flat portion of the mesh electrode substrate S.

Further, as shown in FIG. 2, the mesh electrode substrate S is placed on the surface of the bending table 1, and the bending table 1 has convex portions 6, 8 extending upward from the surface of the flat portion 2. The recesses 5 and 7 extending downward from the surface of the flat portion 2 are formed in a zigzag shape. Next, the upper edge of the flat mesh electrode substrate S is pushed from the surface thereof to the surface of the upper edge of the folding table 1 by the upper pushing member 11, and the mesh electrode substrate S is placed thereon. The edge is pushed to the inner surface of the convex portion 6 of the upper mold member 3 of the zigzag shape of the upper end of the folding table 1, and the upper edge of the electrode substrate S is bent upward at 90 degrees, and then slightly folded outward. The upper edge of the mesh electrode substrate S is placed on the surface of the convex portion 6 of the zigzag upper mold member 3 at the upper edge of the folding table 1, and the mesh is formed by the lower pushing member 12. The lower edge of the electrode substrate S is pushed from the surface thereof to the surface of the lower edge of the above-mentioned bending station 1, and the lower edge of the above-mentioned square-shaped mesh electrode substrate S is pushed to the lower edge of the above-mentioned folding table 1. The inner surface of the convex portion 8 of the lower mold member 4 in the zigzag shape, the lower edge of the above electrode substrate S is directed upward at 90 degrees After the square is bent, it is slightly bent toward the outside, and the lower edge of the above-mentioned mesh electrode substrate S is placed on the surface of the convex portion 8 of the lower mold portion 4 of the zigzag shape of the lower edge of the above-mentioned bending station 1.

Instead of using the upper abutting member 11 and the lower abutting member 12, a fitting flat plate may be inserted between the upper die member 3 and the lower die member 4.

Next, as shown in FIG. 3, the opening 15 provided at the edge of the upper and lower rod-shaped upper pressing members 13 and the lower pressing member 14 is provided above the electrode substrate S and the flat plate provided on the folding table 1. The locating pin 9 of the upper mold member 3 and the lower mold member 4 at the edge of the portion 2 is joined. Then, the convex portion 6 having the zigzag shape and the concave portion 17 of the concave portion 5 and the rod-shaped upper pressing member 13 of the convex portion 16 which are fitted to the upper mold member 3 at the edge of the bending table 1 are fitted to each other. The serrated portion 8 having the zigzag shape and the concave portion 19 of the concave portion 7 and the rod-shaped lower pressing member 14 of the convex portion 18 fitted to the lower mold member 4 at the lower edge of the bent portion 1 are fitted to each other. Further, on the upper surface of the upper mold member 3 and the lower mold member 4 of the above-mentioned bending table 1, the upper and lower edges of the electrode substrate S are press-formed from the surface thereof, and the mesh electrode substrate is bent into the upper edge. The outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the lower edge are alternately formed in a zigzag shape on the opposite sides of the front surface and the back surface of the flat portion 10, respectively.

As shown in Fig. 4, the press forming is performed by moving parallel to the upper end of one of the upper and lower edges of the flat portion 2 to push the moving roller 24 and the lower pushing roller 25, as follows.

1) The rod-shaped upper portion pushing member 11 and the lower pushing member 12 are pushed to the electrode base by the horizontal guide roller 40 and the vertical pressing roller 32 attached to the upper pushing moving roller 24 and the lower pushing moving roller 25 As shown in FIG. 5 and FIG. 12(b), the material S is disposed on the upper and lower edges of the flat portion 10 of the electrode substrate S and the flat portion 2 of the electrode substrate S. The boundary of the mold member 4 forms the right angle portion 34 shown in Figs. 5 and 12(b).

2) at the same time as the formation of the right-angled portion 34, the rod-shaped upper pressing member 13 is pressed by the vertical pressing roller 33 and the horizontal guide roller 41 attached to the upper pushing roller 24 and the lower pushing roller 25, The rod-shaped lower pressing member 14 is pushed against the electrode substrate S, and as shown in FIG. 5, on the upper edge of the mesh electrode substrate S, the surface of the flat portion 10 from the substrate S is formed in a zigzag shape. The convex portions 21 and 23 extending upward and the mesh electrode substrate S of the concave portions 20 and 22 extending downward from the surface of the flat portion 10 of the substrate S are formed.

As an embodiment of the present invention, an electrode substrate having a mesh diameter of 0.1 mm to 0.3 mm and a sieve mesh number of 30 to 50 is used, but the present invention is not limited thereto.

Fig. 11 (a) is a front view showing an example of the press forming method of the flexographic method of the mesh electrode substrate of the present invention. The upper edge of the mesh electrode substrate S is inserted between the upper mold member 3 and the upper pressing member 13 which are provided on the upper edge of the flat portion 2.

Fig. 11 (b) is a front view showing an example of press forming after the bending method of the mesh electrode substrate of the present invention.

The width (a) of the inner side of the concave portion 5 of the upper mold member 3 is about 100 mm to 200 mm, and the length (b) of the outer side of the concave portion 5 of the upper mold member 3 is longer than the width (a) of the inner side of the concave portion 5 by about 20 mm to 50 mm. The height (h) of the concavities and convexities is about 3 mm to 10 mm, and the length (P) between the centers of the concavo-convex portions is preferably about 250 mm to 350 mm.

Since the length (b) of the outer side of the concave portion 5 of the upper mold member 3 is longer than the width (a) of the inner side of the concave portion 5 by about 20 mm to 50 mm, it is inserted into the upper mold provided on the upper edge of the flat portion 2 by press forming. The upper edge of the mesh electrode substrate S between the member 3 and the upper pressing member 13 is extended in the edge in the recess 5 of the upper mold member 3, and is formed obliquely as shown in Fig. 11(b).

Further, the fitting state of the lower mold member 4 and the lower pressing member 14 provided at the lower edge of the flat portion 2 is also the same, and is inserted into the lower mold member 4 and the lower portion provided at the lower edge of the flat portion 2. The lower edge of the mesh electrode substrate S between the pressing members 14 is shaped to have the same shape as the upper edge of the mesh electrode substrate S.

The upper mold member 3 of the upper edge of the flat portion 2 of the bent mold of the mesh electrode substrate of the present invention and the lower mold member 4 provided at the lower edge of the flat portion 2 are preferably aluminum. Further, the material of the rod-shaped upper pressing member 13 and the rod-shaped lower pressing member 14 may be made of impact resistant vinyl chloride or aluminum. However, the impact-resistant vinyl chloride having flexibility is suitable for the press processing by roll moving, and is applied to the trial production. On the other hand, aluminum has high rigidity, and press forming as described above is not easy, so it is necessary to simultaneously press the mold. Body pressing device.

Furthermore, in the case of stainless steel, since the degree of machining in the thickness direction of the die size is large, the amount of thermal deformation is large, so that it is not suitable for the upper die member 3 and the upper edge of the flat portion 2. The upper mold member 4 and the upper and lower rod-shaped upper portion pressing members 13 and the lower pressing member 14 are formed on the lower edge of the rectangular flat portion 2.

(2) Hanging die and hanging method

6 to 9 are flowcharts showing an embodiment of a hanging mold of the mesh electrode substrate of the present invention and a hanging method of the mesh electrode substrate using the above-mentioned hanging mold.

Fig. 6(a) is a view showing an example of the upper mold 26 of the hanging mold of the present invention, wherein the gap between the gap portions 27 of the electrode holding members 28 and 28 is adjusted to the upper edge of the electrode substrate S. In the state in which the gap portion 27 is inserted in the vicinity, the width of the electrode substrate S can be maintained without limitation by the plurality of convex portions 21 and the concave portions 20 which are alternately formed on the upper edge of the electrode substrate S. In other words, the flat portion 10 of the electrode substrate S of the mesh electrode is inserted into the gap portion 27 of the electrode holding members 28 and 28, and is suspended from the upper edge of the electrode substrate S while being held in a zigzag shape. The convex portion 21 protruding from the surface of the flat portion 10 of the electrode substrate S and the concave portion 20 and the convex portion 21 protruding from the concave portion 20 on the surface of the flat portion 10 of the substrate S in a direction opposite to the convex portion 21 Upper mold 26.

Figure 6 (b) is a view showing an example of the mold 29 under the hanging mold of the present invention, The gap between the gap portions 30 of the hammer members 31 and 31 is adjusted so that the lower edge of the electrode substrate S is interposed between the gap portions 30, and the edge of the electrode substrate S of the mesh electrode is lower. The convex portion 23 and the concave portion 22 which are alternately formed can suspend the width of the hammer members 31, 31 without constraining the electrode substrate S. In other words, the flat portion 10 of the electrode substrate S of the mesh electrode is inserted into the gap portion 30, and is formed in a zigzag shape and protrudes from the lower edge of the electrode substrate S to protrude from the electrode substrate S. The convex portion 23 on the surface of the flat portion 10 and the concave portion 22 and the convex portion 23 protruding from the concave portion 22 on the surface of the flat portion 10 of the base material S in the opposite direction to the convex portion 23 are suspended by the lower mold 29 Hammer members 31, 31 composed of two sheets.

Further, as shown in FIG. 7 and FIG. 8, the rectangular flat portion 10 of the electrode substrate S is inserted into the gap portion 27 of the electrode holding members 28 and 28 of the upper mold 26, and is suspended from the electrode substrate S without being restrained. The zigzag recessed portion 20 and the convex portion 21 formed on the upper edge of the electrode substrate S, and the quadrangular flat portion 10 of the electrode substrate S is inserted into the gap portion 30 of the hammer members 31, 31 of the lower die 29. The zigzag-shaped concave portion 22 and the convex portion 23 formed at the lower edge of the electrode substrate S are inserted to serve as a hammer for stopping the electrode substrate S without restraining the electrode substrate S. Fig. 9 is a perspective view showing a state in which the electrode substrate S is suspended by the hanging die of the mesh electrode substrate composed of the upper die 26 and the lower die 29 of the present invention.

Further, the jagged recess 20 and the convex portion 21 formed by the edge of the electrode substrate S are suspended from the electrode substrate S without being restrained, and the die 26 is unconstrained. The electrode substrate S is suspended from the zigzag-shaped concave portion 22 and the convex portion 23 formed by the lower edge of the electrode substrate S for damping the electrode substrate S under the die 29, and various other structures may be used. By.

As described above, the hanging mold of the electrode substrate of the mesh electrode of the present invention is difficult to produce wrinkles and creases during suspension, or thermal deformation during the firing step, and can ensure (1) workability while ensuring workability. The (2) suspension load is dispersed to suppress (3) thermal deformation in the calcination step.

Since the hanging mold is a structure in which only the electrode substrate is inserted, it is disposed such that the electrode substrate passes through the gap of the hanging mold without dropping in the electrode fabrication, that is, the edge of the electrode substrate is not applied. The force for deforming the molded portion is pressed, and the gap portions 27 and 30 which are appropriately narrowed in the insertion operation are smoothly formed. The gap portions 27 and 30 may be any interval in which the rectangular flat portion 10 of the electrode substrate S can smoothly enter. If the interval is too wide, since the electrode A is dropped from the hanging mold, it is usually Good is about 0.5 mm~1.5 mm.

Further, in the same manner as described above, the electrode holding members 28, 28 and the hammer which are in contact with the right angle portion 34 of the press-formed portion of the edge of the electrode substrate S are not excessively applied in order to apply a force for deforming the press-formed portion of the edge of the electrode substrate S. The corner portions of the members 31, 31 are preferably formed at right angles without chamfering. On the other hand, in order to allow the electrode substrate S to be smoothly inserted, the insertion port is preferably chamfered.

[Examples]

Next, although the examples of the invention are described, the invention is not limited thereto.

<Example 1>

As the mesh electrode (target electrode), a fine-diameter plain woven mesh electrode as shown in Fig. 10 (a) was used.

Material of electrode substrate S: Ni

The size of the electrode substrate S: width × length (mm) 2500 × 1000

Wire diameter of electrode substrate: 0.20 mm (refer to Figure 10(a))

Screen of the mesh ^{note 1)} : 35

Note 1): Number of lines or meshes existing between 25.4 mm (1 inch)

The mesh electrode is bent by the edge bending mode of the mesh electrode substrate by the method shown in FIGS. 1 to 4, and the mesh electrode is used by the method shown in FIGS. 6 to 9. The meshing electrode is hung from the hanging die of the substrate.

Hang the plurality of pieces on the hanger and perform the following processing.

‧ Etching: HCl × 3 minutes

‧ Coating solution: platinum group metal salt solution

‧calcination

Calcination temperature: 400~600°C

Calcination time: 10 minutes to 40 minutes

<Note> The bent portion of the electrode edge is cut off in the final step.

The shape of the edge of the electrode substrate is affected by the basic dimensions of the flexing tool described below. In order to obtain the basic size, two types of bending molds were produced, and the edges of the electrode substrate were actually bent, and the two were compared (see Fig. 11).

The basic dimensions of the flexing tool are shown in Table 1.

As a result, as a result of bending the edge of the electrode substrate using the above-mentioned bending die, since the sample A having a long P (pitch) has a small number of bends per unit length, the wrinkles due to the bending can be suppressed to be small. For sample B. Based on this result, the size of the sample A was set to the basic size of the bending mold.

Further, as a result of the above, the standard shape ratio of the hanging mold according to the sample A is as follows. Further, an example of the edge of the electrode substrate formed by the electrode substrate bending die is shown in Figs. 12(a) and 12(b). At this time, if A is set as the distance from the peak top to the peak-to-valley of the electrode substrate formed by the bending, A' is set to the length of A after bending, and B is set to the length dimension of the bent portion. , C is set to the size of the right angle direction of the length of the bent portion, then

‧ elongation rate (=A'/A): about 1.00745

‧Flex ratio (=A:B:C): 155(1):15(0.0968):6(0.0387)

‧Flex angle: 90°

The setting is maintained in a stable suspension state in all the steps including the calcination step in this trial production. Thereby, the appropriateness of using such values can be obtained as a criterion for determining the ratio of the shape of the electrode substrate bending mold.

<Example 2>

As the mesh electrode, the thin diameter of FIG. 10(a) used in Embodiment 1 will be flat. The results of the same procedure as in Example 1 were obtained by using the expanded metal mesh electrode as shown in Fig. 10 (b) instead of the mesh electrode. At this time, in Fig. 10 (b), a mesh having a thickness T of 0.1 to 0.3 mm and a pitch W of 0.1 to 0.3 mm is used.

<Comparative Example 1>

The fine-diameter plain woven mesh electrode of Fig. 10(a) used in the first embodiment and the second embodiment and the expanded metal mesh electrode shown in Fig. 10(b) are as shown in Fig. 13, and are suspended in the mold 35. A plurality of holes 36 are opened, and a plurality of holes 36 of the hanging die 35 are hung through the wire or hooks 37 to hang the electrode substrate S, and are etched, coated, calcined, or the like. As a result, deformation and wrinkles are generated in the hanging portion, and deformation during firing and vibration during work are generated, and it cannot be used as an electrode.

(industrial availability)

Since the edge bending mold of the mesh electrode substrate, the hanging mold of the mesh electrode substrate, and the hanging method of the mesh electrode substrate according to the present invention can be inserted into the hanging mold by the electrode substrate The electrode substrate is mounted with good workability, and the hanging load which is caused by deformation and wrinkles is concentrated on the suspended electrode substrate, and is dispersed to cover the entire width of the electrode without constraining the electrode substrate. Further, by dispersing the suspended load, the thermal deformation in the longitudinal direction of the hanging mold in the firing step is released, and wrinkles can be suppressed from occurring on the inner surface of the electrode, so that it can be applied to various mesh electrodes.

S‧‧‧tetragonal flat mesh electrode substrate

1‧‧‧Flexing station

2‧‧‧Tesh-shaped flat part of the folding table 1

3‧‧‧Upper mold member

4‧‧‧Lower mold member

5, 7, 17, 19, 20, 22‧‧ ‧ recess

6, 8, 16, 18, 21, 23‧‧ ‧ convex

9‧‧‧The upper mold member 3 is disposed on the upper edge of the square flat portion 2 and is disposed on the fourth Locating pins provided at both ends of the lower mold member 4 below the lower edge of the angular flat portion 2

10‧‧‧ Flat part of electrode substrate S

11‧‧‧Upper push member

12‧‧‧ Lower push member

13‧‧‧rod upper pressing member

14‧‧‧ Rod-shaped lower pressing member

15‧‧‧ is an opening provided at both ends of the upper pressing member 13 and the lower pressing member 14 in engagement with the positioning pin 9

24, 25‧‧ ‧ push the moving roller

26‧‧‧Working mode

27, 30‧‧‧ gap section

28, 28‧‧‧Electrode holding member

29‧‧‧Working

31, 31‧‧‧ Hammer components

32, 33‧‧‧ vertical pressing rolls

34‧‧‧right corner

35‧‧‧Study hanging model

36‧‧‧Opening a number of holes in the hanging form

37‧‧‧ line or hook

40, 41‧‧‧ horizontal guide rollers

Figure 1 is a view showing a network of a flexural mold using the mesh electrode substrate of the present invention. A drawing of the first step of an embodiment of the method of bending the electrode substrate.

Fig. 2 is a view showing a second step of an embodiment of a method of bending a mesh electrode substrate using a bending die of the mesh electrode substrate of the present invention.

Fig. 3 is a view showing a third step of an embodiment of a bending method of a mesh electrode substrate using a bending die of the mesh electrode substrate of the present invention.

Fig. 4 is a view showing a fourth step of an embodiment of a method of bending a mesh electrode substrate using a bending die of the mesh electrode substrate of the present invention.

Fig. 5 is a perspective view showing an example of a mesh electrode substrate which is bent by the bending method of the mesh electrode substrate of the present invention.

Fig. 6 (a) is a perspective view showing an embodiment of a mold above the hanging mold of the mesh electrode substrate of the present invention.

Fig. 6 (b) is a perspective view showing an embodiment of a mold under the hanging mold of the mesh electrode substrate of the present invention.

Fig. 7 is a flow chart showing an example of a step of suspending the upper edge of the mesh electrode substrate by the hanging method of the mesh electrode substrate of the present invention.

Fig. 8 is a flow chart showing an example of a step of suspending the upper edge of the mesh electrode substrate and attaching the hammer to the lower edge by the hanging method of the mesh electrode substrate of the present invention.

Fig. 9 is a perspective view showing a state in which an electrode substrate is suspended by a hanging die of the mesh electrode substrate of the present invention.

Fig. 10 (a) is a partial front elevational view showing a flat-woven mesh electrode of an example of an electrode substrate used in the present invention.

Fig. 10 (b) is a partial front elevational view showing an expanded metal mesh electrode which is an example of an electrode substrate used in the present invention.

Fig. 11 (a) is a front view showing an example of press forming before the bending method of the bending mold of the mesh electrode substrate of the present invention.

Fig. 11 (b) is a front view showing an example of press forming after the bending method of the bending mold of the mesh electrode substrate of the present invention.

Fig. 12 (a) is a partial front elevational view showing an example of a mesh electrode substrate which is bent by the bending method of the mesh electrode substrate of the present invention.

Fig. 12 (b) is a partial side view showing an example of a mesh electrode substrate which is bent by the bending method of the mesh electrode substrate of the present invention.

Fig. 13 is a view showing an example of a hanging method of an electrode substrate used in a comparative example.

S‧‧‧tetragonal flat mesh electrode substrate

10‧‧‧ Flat part of electrode substrate S

20, 22‧‧‧ recess

21, 23‧‧ ‧ convex

26‧‧‧Working mode

29‧‧‧Working

Claims (5)

An edge bending die for a mesh electrode substrate, wherein the opposite sides of the quadrangular planar mesh electrode substrate S are respectively set as an upper edge and a lower edge, respectively bending the upper edge Further, the lower edges are formed so that two or more convex portions 21 and 23 whose upper surface protrudes from the surface of the flat portion 10 of the substrate S protrude from the base opposite to the convex portions 21 and 23, respectively. The concave portions 20 and 22 of the surface of the flat portion 10 of the material S, and the outer surfaces of the convex portions 21 and 23 and the concave portions 20 and 22 of the upper edge and the lower edge are respectively alternated to the surface and the back surface of the flat portion 10 a flexing die in which a mesh electrode substrate is bent to a zigzag-shaped mesh electrode substrate on the opposite side; and is characterized in that it has a quadrangular flat portion 2 and a quadrangular flat plate shape The opposite sides of the portion 2 are respectively defined as the upper and lower edges of the folding table 1; the upper and lower edges of the folding table 1 are respectively provided with concave portions 5, 7 and convex portions 6, 8 upper and lower pair of upper mold member 3 and lower mold member 4, respectively The convex portions 16 and 18 and the concave portions 17 and 19 which are fitted into the concave portions 5 and 7 and the convex portions 6 and 8 of the upper and lower pair of upper mold members 3 and the lower mold member 4, respectively, have a pair of upper and lower rods. The upper pressing member 13 and the lower pressing member 14 are for placing the mesh electrode substrate S on the bending table 1 so that the upper and lower pair of bar-shaped upper pressing members are 13. The convex portions 16, 18 and the concave portions 17, 19 of the lower pressing member 14 are respectively fitted to the upper and lower upper mold members 3 and the lower portion of the above-mentioned folding table 1. Press forming means for pressing the concave portions 5, 7 and the convex portions 6, 8 of the partial mold member 4; the upper and lower pair of upper mold members 3 and the convex portions 6 and 8 of the lower mold member 4 of the folding table 1 The upper surface protrudes from the surface of the quadrangular flat portion 2, and the bottom surfaces of the upper and lower upper mold members 3 and the lower mold members 4 are opposite to the convex portions 6, 8 The surface of the flat portion 2 is protruded. The edge-bending mold of the mesh electrode substrate according to the first aspect of the invention, wherein the positioning pin 9 is provided on the upper surfaces of the upper and lower ends of the upper and lower pair of the upper mold member 3 and the lower mold member 4, Both ends of the rod-shaped upper pressing member 13 and the lower pressing member 14 are provided with an opening 15 fitted to the positioning pin 9, and the opening 15 is fitted to the positioning pin 9. In the above press forming, the upper and lower edges of the mesh electrode substrate S are bent. A method for edge bending of a mesh electrode substrate, characterized in that: using the bending die of the first or second aspect of the patent application, the two sides of the square-shaped mesh electrode substrate S are respectively opposite to each other The upper edge and the lower edge are respectively bent, and the upper edge and the lower edge are respectively bent, thereby forming two or more convex portions 21, 23 and a bottom surface whose upper surface protrudes from the surface of the flat portion 10 of the substrate S, respectively. The concave portion 20, 22 protruding from the surface of the flat portion 10 of the substrate S toward the opposite side of the convex portions 21, 23, the upper edge and the above The convex portions 21 and 23 of the lower edge and the outer surfaces of the concave portions 20 and 22 are bent to form a zigzag shape by bending the mesh electrode substrate S toward the opposite side of the front surface and the back surface of the flat plate portion 10, respectively. A hanging die for a mesh electrode substrate, which is used for hanging a mold of a mesh electrode substrate S, which is a mesh electrode substrate S of a quadrangular plate shape The opposite sides are respectively defined as an upper edge and a lower edge, and the upper edge and the lower edge are respectively bent, thereby forming two or more convex portions on which the upper surface protrudes from the surface of the flat portion 10 of the substrate S. 21, 23 and the bottom surface of the concave portion 20, 22 protruding from the surface of the flat portion 10 of the substrate S toward the opposite side of the convex portion 21, 23, and the convex portions 21, 23 of the upper edge and the lower edge and The outer surfaces of the concave portions 20 and 22 are alternately formed in a zigzag shape toward the opposite side of the front surface and the rear surface of the flat plate portion 10, respectively, and are characterized in that they are composed of an upper die 26 and a lower die 29, and the upper die The 26-series has the electrode holding members 28 and 28 which are formed by two parallel plates having the gap portion 27 at the center, and the gap portion 27 has a smaller width than the thickness of the flat portion 10 of the substrate S. The lower die 29 has a hammer composed of two parallel plates having a gap portion 30 at the center. The gaps 30 are formed to be smaller than the thickness of the flat portion 10 of the substrate S, and have a structure in which the gap portion 27 of the electrode holding members 28 and 28 is The gap is adjusted to attach the upper edge of the electrode substrate S In a state in which the gap portion 27 is interposed between the gap portions 27, the plurality of convex portions 21 and the concave portions 20 alternately formed by the upper edges of the electrode base material S can maintain the width of the electrode substrate S without restraint, and The gap between the gap portions 30 of the hammer members 31 and 31 is adjusted so that the lower edge of the electrode substrate S is interposed between the gap portions 30, and the edge of the electrode substrate S of the mesh electrode is lower. The convex portion 23 and the concave portion 22 which are alternately formed can hang the widths of the hammer members 31 and 31 without any restrictions, and the electrode holding members 28 and 28 hang the electrode substrate S without restraint, and the electrode substrate S can be slid. Stopping vibration is possible. A hanging method for a mesh electrode substrate, which is a hanging method for hanging a mesh electrode substrate of a mesh electrode substrate S, wherein the mesh electrode substrate S is a quadrangular flat mesh electrode substrate The two opposite sides of S are respectively defined as an upper edge and a lower edge, and the upper edge and the lower edge are respectively bent, thereby forming two or more upper surfaces protruding from the flat portion 10 of the substrate S, respectively. The convex portions 21, 23 and the bottom surface of the surface protrude from the concave portions 20, 22 on the surface of the flat portion 10 of the substrate S toward the opposite sides of the convex portions 21, 23, and the convex portions of the upper edge and the lower edge are formed. 21 and 23 and the outer surfaces of the concave portions 20 and 22 are respectively formed in a zigzag shape on the opposite sides of the front surface and the back surface of the flat portion 10, respectively, and the hanging mold according to the fourth aspect of the patent application is used. The plurality of convex portions 21 and recesses alternately formed on the upper edge of the electrode substrate S by the electrode holding members 28 and 28 without the above-described electrode substrate S And a convex portion 23 and a concave portion 22 which are alternately formed at an edge of the electrode substrate S of the mesh electrode, and the hammer members 31 and 31 are suspended from the electrode substrate S so as to become the electrode base. The vibration of the material S.