JP2011178175A - Composite metal porous body and method for manufacturing the same - Google Patents

Abstract

An object of the present invention is to improve the handleability of a metal porous body without sacrificing the effective area of the porous body.
A sheet-like metal part 11 made of a porous body having a three-dimensional network structure and a resin part 12 extending in the surface direction of the metal part 11 are integrally formed, and the metal part 11 is made of titanium or titanium. It is made of an alloy.
[Selection] Figure 1

Description

  The present invention relates to a composite metal porous body suitable for use in a filter, a gas diffusion member, a heat dissipation member, a water absorption member and the like, and a method for producing the same.

The metal porous body can be applied to various uses such as a filter, a gas diffusion member, a heat radiating member, and a water absorbing member, and is provided in various apparatuses. However, the metal porous body has a problem that it is difficult to handle because of its low strength and easy deformation.
Therefore, in order to prevent damage to the porous body that occurs when handling the filter element composed of the porous body in the filter device, for example, as shown in Patent Document 1 below, the end area of the filter element is filled with a different substance. The technology to reinforce it is proposed.
Further, in order to provide a fixing hole for attaching the metal foam to the apparatus, for example, as shown in the following Patent Document 2, the pores of the porous body are filled with a solid such as metal or plastic to increase the strength. A technique for providing a portion to be improved has been proposed.

Japanese Patent Laid-Open No. 48-13956 Japanese Patent Application Laid-Open No. 08-53723

However, when trying to improve the strength by overlapping the resin or the like on the surface of the porous body, when trying to provide a fixing hole in the reinforcement portion, it will cut the resin and the metal at the same time, difficult to process, Shape assignment becomes difficult.
Moreover, since a metal porous body is generally difficult to manufacture and is expensive, it is desired to utilize this porous body without waste to fully exhibit its properties. On the other hand, the reinforcement in which the surface is coated with resin, metal or the like reduces the effective area of the porous body, resulting in an increase in cost.

  This invention is made | formed in view of the above subject, and it aims at improving the handleability, without sacrificing the effective area of a metal porous body.

  In order to solve such problems and achieve the above-mentioned object, the composite metal porous body of the present invention comprises a sheet-like metal portion comprising a porous body having a three-dimensional network structure, and a surface direction of the metal portion. The extending resin part is integrally formed, and the metal part is made of titanium or a titanium alloy.

  Moreover, the manufacturing method of the composite metal porous body of this invention uses the said metal part as an insert part, and performs insert molding which performs injection molding of the said resin part so that it may continue to the edge part of this metal part. The composite metal porous body is produced.

According to the composite metal porous body of the present invention, since the resin portion is provided on the periphery of the metal portion having low strength, a metal porous body with good handleability can be realized. In addition, since the resin portion extends so as to protrude from the metal portion, it is possible to process only the resin portion, and thus it is possible to easily give a shape such as a device fixing hole.
In addition, the location which provides a resin part is not restricted to the perimeter of a metal part, and is not restricted to an outer edge part, It can provide partially as needed. Moreover, the structure which connects a some metal part with a resin part may be sufficient. Further, the resin constituting the resin portion is not limited to a so-called synthetic resin, and includes a rubber material such as an elastomer.

  Further, according to the method for producing a composite metal porous body of the present invention, the molten resin enters and solidifies in the pores opened in the side portion of the metal portion at the joint portion between the metal portion and the resin portion. A composite metal porous body in which the metal part and the resin part are firmly bonded can be formed.

  Here, due to the three-dimensional network structure of the metal part, the depth at which the resin part enters the inside of the metal part becomes uneven in the entire outer periphery of the metal part. It becomes a structure where a narrow space is complicated. Furthermore, when the joint part of the bone part and resin part which comprise the three-dimensional mesh of a metal part is expanded, the clearance gap which is not partially in contact is formed. As described above, the joining portion is configured to contain a large number of narrow spaces in a microscopic view. Therefore, when the composite metal porous body is placed in a corrosive gas such as air or chlorine gas, or when such gas or moisture passes through the metal portion, the substance diffuses in the joint portion. Since it is difficult, a concentration difference occurs in oxygen ions and corrosive ions, and a potential difference occurs in the bone portion, thereby acting as a local battery. For this reason, so-called crevice corrosion occurs in the metal portion in the joint portion, and the resin portion may peel off from the metal portion.

However, in the composite metal porous body of the present invention, since such a metal portion is formed of titanium or a titanium alloy, it becomes possible to reliably suppress the occurrence of the crevice corrosion compared to, for example, stainless steel, Regardless of the use environment of this composite metal porous body, it becomes possible to improve the corrosion resistance of the metal part, and good bonding between the metal part and the resin part can be maintained over a long period of time.
The titanium forming the metal part means a material containing 98.0 wt% or more of titanium, and the titanium alloy means a material containing less than 98.0 wt% of titanium, such as Ti-6Al-4V, Ti-10V-2Fe-3Al and the like are meant.

It is a top view which shows the composite metal porous body of this invention. It is the A section enlarged view of the composite metal porous body shown in FIG. It is a schematic diagram which shows an example of the method of manufacturing the metal part of a composite metal porous body. It is sectional drawing which shows the principal part of the metal mold | die for insert injection molding which manufactures the composite metal porous body shown in FIG. It is a perspective exploded view which shows the example of the composite metal porous body of this invention used as a filter of an air cleaner. It is a schematic diagram which shows the example of the composite metal porous body of this invention used as a packing support plate of a packed tower. It is a schematic diagram which shows the example of the composite metal porous body of this invention used as a water absorption member of a humidifier. It is a schematic diagram which shows the example of the composite metal porous body of this invention used as an electrode and a dust collection filter of an electrical dust collector. It is a schematic diagram which shows the example of the composite metal porous body of this invention used for the heat sink of CPU cooler. It is a perspective view which shows the example of the composite metal porous body of this invention used as a gas diffusion electrode of a fuel cell. It is a schematic diagram which shows the example which integrated the fuel supply part in the fuel cell provided with the gas diffusion electrode shown in FIG. It is a perspective view which shows an example of the fuel cell which used the composite metal porous body of this invention as a gas diffusion electrode. It is a perspective view which shows the other example of the fuel cell which used the composite metal porous body of this invention as a gas diffusion electrode. It is sectional drawing which shows the example of the stack type fuel cell which used the composite metal porous body of this invention as a gas diffusion electrode. It is a top view which shows the composite metal porous body (fuel electrode) which comprises the fuel cell shown in FIG. It is a top view which shows the composite metal porous body (air electrode) which comprises the fuel cell shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the composite metal porous body 10 of the present invention is formed into a rectangular thin plate shape in which a sheet-like metal portion 11 and a resin portion 12 extending in the surface direction of the metal portion 11 are integrally formed. Yes.

    The metal part 11 is a rectangular thin plate made of a porous body having a three-dimensional network structure, and has air permeability and water absorption due to pores opening in the side parts in each direction. It has the characteristic of being large. The metal part 11 is made of titanium or a titanium alloy, and specifically, a material containing 98.0 wt% or more of titanium, or a material containing less than 98.0% of titanium, It is formed of Ti-6Al-4V, Ti-10V-2Fe-3Al, or the like.

The resin portion 12 has a thin plate shape that is continuous with the outer peripheral edge portion of the metal portion 11, and is formed to have substantially the same thickness as the metal portion 11 without a step.
The composite metal porous body 10 in which the metal part 11 and the resin part 12 are integrally formed constitutes one thin plate member as a whole, and is attached to the apparatus by fixing or sandwiching the resin part 12 or the like. It is used as a filter, a water absorbing member, a heat radiating body, or the like.

    Here, due to the three-dimensional network structure of the metal part 11, the joint part between the metal part 11 and the resin part 12 has a depth that allows the resin part 12 to enter the inside of the metal part 11. It becomes non-uniform in the whole area in the structure, and a narrow space is intricate. Further, as shown in FIG. 2, when the joint portion between the bone portion 11a and the resin portion 12 constituting the three-dimensional mesh of the metal portion 11 is enlarged, a gap 10a that is not in partial contact is formed. Yes. As described above, the joining portion is configured to contain a large number of narrow spaces 10a in a microscopic view.

Next, the manufacturing method of the composite metal porous body 10 comprised as mentioned above is demonstrated. First, the manufacturing method of the metal part 11 which is a metal porous body is demonstrated according to FIG. Although this metal porous body can be manufactured by various methods, in this embodiment, a method of manufacturing a green sheet G obtained by firing a thin slurry S containing metal powder and drying it will be described. .
First, the slurry S is a mixture containing a metal powder such as a hydrogen pulverized titanium powder or a titanium alloy powder produced by a gas atomizing method, an organic binder (for example, methylcellulose or hydroxypropylmethylcellulose), and a solvent (water). And a foaming agent (for example, a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms (for example, neopentane, hexane, heptane)) or an antifoaming agent (ethanol) that sublimates or vaporizes the mixture by heat treatment as necessary. ) Etc. are added.

    Such slurry S is stored in the hopper 31 of the green sheet manufacturing apparatus 30 and then supplied from the hopper 31 onto the carrier sheet 33 conveyed by the roller 32. The slurry S on the carrier sheet 33 is extended between the moving carrier sheet 33 and the doctor blade 34 and formed into a required thickness. The formed slurry S is further conveyed by the carrier sheet 33 and passes through the heating furnace 35. And by drying in the heating furnace 35, the green sheet G of the state in which the said metal powder was joined by the organic binder is formed.

In addition, when a foaming agent is contained in the slurry S, the slurry S in a state of being extended on the carrier sheet 33 is heat-treated in a high humidity atmosphere before drying to foam the foaming agent to obtain a foamed slurry. The green sheet G is formed by performing a drying process.
The green sheet G is removed from the carrier sheet 33, and then degreased and fired in a vacuum furnace (not shown), thereby removing the organic binder and sintering the metal powder (metal portion 11). It becomes. Here, carbon is contained in the organic binder, and this carbon cannot be removed even by the firing and may remain in the metal part 11. Specifically, carbon may be contained in the metal part 11 by 0.6 wt% or less.

    Next, a method of forming the composite metal porous body 10 using the metal part 11 formed as described above will be described with reference to FIG. The composite metal porous body 10 can be formed by, for example, pressing a resin part 12 made of a thermoplastic resin that has already been solidified to the metal part 11 in a heated state. A method of forming the composite metal porous body 10 integrally provided with the resin portion 12 by insert molding using 11 as an insert part will be described.

First, the metal part 11 is arranged as an insert part in the cavity 22 formed between the pair of mold plates 20 and 21 shown in FIG. 4, and then the molten resin 25 injected from the runner 23 through the gate 24 is put into the cavity 22. Fill. And the composite metal porous body 10 with which the metal part 11 and the resin part 12 were united is formed by cooling and solidifying this molten resin 25. FIG.
Here, the thickness of the cavity 22 at the time of mold closing (size in the mold opening / closing direction) is slightly smaller than that of the metal part 11, and the metal part 11 is compressed by 3 to 90% between the mold plates 20 and 21 when the mold is closed. As a result, the metal part 11 can be prevented from being moved with respect to the cavity 23 by the injection pressure of the molten resin, and the flatness of the metal part 11 can be improved.

Further, when the composite metal porous body 10 is formed by such insert molding, the pore diameter of the metal portion 11 is set to about 10 μm to 2 mm, the porosity is set to about 40 to 98%, and the resin portion 12 is made of polypropylene. In the case of forming, the molten resin 25 is clamped at a molding temperature of 180 ° C. and 80 kN, and injection molded at a molding pressure of 25 MPa, so that the molten resin 25 has a depth of about 5 μm to 1000 μm in the pores opened to the side of the metal part 11. It was confirmed that the metal part 11 was impregnated and solidified (anchor effect) and the metal part 11 was not deformed by the molding pressure of the molten resin 25 or the shrinkage behavior at the time of cooling and solidification.
In addition, when the pore diameter and porosity of the metal part 11 are too small, the molten resin 25 cannot enter the pores, and the anchor effect is insufficient, and the bonding strength with the resin part 12 may not be sufficiently obtained. . On the other hand, if the pore diameter and the porosity are too large, the strength of the metal part 11 itself is insufficient, and the molding pressure of the molten resin 25 and the shrinkage behavior at the time of cooling and solidification cannot be endured and there is a risk of deformation.

  In addition, the material of the resin portion 12 is not limited to polypropylene, and any material that can be injection-molded such as a thermoplastic resin or an elastomer may be used. Therefore, the resin portion 12 may be appropriately selected according to the application in consideration of heat-resistant temperature and hardness. . Further, the resin portion 12 may be flat as shown in FIG. 1, but a hole for a screw insertion hole, a groove shape for fitting to a device, a rib shape for improving strength, a boss, etc. are resin-molded. Sometimes it may be provided. In addition, by providing a hole in the metal part 11 in advance and injecting it so as to be filled with a molten resin, the composite metal porous body 10 having the resin part 12 in the middle as well as the end part of the metal part 11. Can be manufactured.

  Here, as described above, the joint portion between the metal portion 11 and the resin portion 12 is configured to contain a large number of narrow spaces 10a in a microscopic view. When placed in a corrosive gas such as air or chlorine gas, or when such gas or moisture has passed through the metal part 11, the substance is difficult to diffuse in the joint part. A concentration difference is generated in the corrosive ions, and a potential difference is generated in the bone portion 11a, thereby acting as a local battery. For this reason, so-called crevice corrosion occurs in the metal portion 11 in the joint portion, and the resin portion 12 may peel off from the metal portion 11.

  However, in the composite metal porous body 10 of the present embodiment, since such a metal portion 11 is formed of titanium or a titanium alloy, it is possible to suppress the occurrence of the crevice corrosion as compared with, for example, stainless steel. Regardless of the use environment of the composite metal porous body 10, the corrosion resistance of the metal part 11 can be improved, and good bonding between the metal part 11 and the resin part 12 can be maintained over a long period of time. .

The composite metal porous body 10 manufactured in this way is used for the following applications.
FIG. 5 shows a filter unit 41 that houses the filter 40 in a multilayer filter device such as an air purifier provided with the composite metal porous body 10 as the filter 40.
The filter unit 41 has a configuration in which a plurality of filters 40 are inserted into a filter box 42 made of resin or metal, and a lid member 43 is attached to the filter box 42.

  In this filter unit 41, the resin part 11 of the filter 40 is formed of an elastic member such as an elastomer, so that the filter box 42 and the lid member 43 are hermetically sealed, so that the fluid to be filtered does not leak and the metal part 11. Can be passed through the part. In addition, if the metal part 11 is manufactured by supporting a photocatalyst such as titanium oxide, the gaseous pollutant trapped by the filter can be decomposed by light irradiation, and the air cleaning effect can be further enhanced.

FIG. 6 shows a packed tower 51 provided with the composite metal porous body 10 as a packed support plate 50. The packed tower 51 is formed by packing a packing 53 in a vertical cylindrical shell 52, and a liquid uniformly dispersed from above through a liquid dispersion plate 54 disposed on the top of the packing 53. Is a device that absorbs the components in the gas into the liquid by a structure in which the gas fed from below flows through the gap of the filling 53 and rises in contact with the liquid. It can be performed.
In this packed tower 51, the composite metal porous body 10 as the packing support plate 50 has the resin part 12 provided with fixing holes fixed to the shell 52 by screwing or the like, and the metal part 11 supplies liquid and gas. The packing is supported while passing.

In FIG. 7, the humidifier 61 provided with the composite metal porous body 10 as the water absorbing member 60 is shown.
The humidifier 61 has a structure in which a water absorbing member 60 is erected on the bottom 63 of a tank 62 that holds water, and the water is sucked up from the tank 62 into the pores of the water absorbing member 60 by the osmotic pressure of the fine continuous air holes. By evaporating from the metal part 11 having a large surface area, the humidity in the air can be increased. In this humidifier 61, the composite metal porous body 10 as the water absorbing member 60 is fixed by inserting the resin part 12 into the groove part 64 formed in the bottom part 63 of the tank 62, and a part of the porous metal part 11. Is submerged.

  In this water-absorbing member 60, the resin part 12 is a part for fixing the composite metal porous body 10 to the apparatus. Therefore, when the strength of the metal part 11 is not required so much, the resin part 11 is the whole of the metal part 11. It is not necessary to be provided on the circumference, and for example, it may be provided only on one side of the rectangular metal part 11.

  FIG. 8 shows a dust collector 72 that includes the composite metal porous body 10 as the electrode 70 and the filter 71 and collects dust by charging the dust. In the dust collector 72, a voltage is applied between the electrode 70 and the electrode 73, which are the composite metal porous body 10, to discharge, and dust charged between these electrodes can be collected by the filter 71. The electrode 70 and the filter 71 which are the composite metal porous body 10 are provided with a fixing shape such as a hole in the resin portion 12 and are fixed to the apparatus by screwing or the like.

  Since the electrode 70 and the filter 71 can be fixed to the device at the resin portion 12, the resin portion 12 can be easily insulated by forming it with an electrically insulating material, and the device configuration can be simplified. . Further, in order to connect the metal part 11 and the power source in the electrode 70, the resin part 12 may be formed of a conductive resin, or a metal wiring may be printed on the surface of the resin part 12.

FIG. 9 shows a cooler unit 81 including the composite metal porous body 10 as a heat radiator 80.
In this cooler unit 81, the metal part 11 of the composite metal porous body 10 that is fixed in parallel with the substrate part 82 constitutes a heat sink, and the metal part 11 is cooled by the air blown by the fan 83. This is a device for cooling the CPU and the like of the computer arranged on the substrate 82 side. In this case, a heat conductive resin is used for the resin portion 12. Since the composite metal porous body 10 has a large surface area of the metal portion 11 and is lightweight, it is suitable for a heat radiator in various devices in addition to such a CPU cooler.

  FIG. 10 shows a composite metal porous body 10 applied to gas diffusion electrodes 90 and 91 of a polymer electrolyte fuel cell. The gas diffusion electrodes 90 and 91 are provided with a resin portion 12 so as to fill between the metal portions 11 and surround the entire outer periphery in a state where a plurality of metal portions 11 are arranged at intervals in the plane direction. ing. A metal thin plate tab 92 extending to the outer periphery of the resin portion 12 is connected to one end of each metal portion 11. The metal thin plate tab 92 is welded to each metal part 11 before insert molding, and is integrated with the resin part 12 by insert molding.

  As shown in FIG. 11, this fuel cell has a layered structure in which an electrolyte membrane 93 is sandwiched between an anode gas diffusion electrode (air electrode) 90 and a cathode gas diffusion electrode (fuel electrode) 91. On the surface of the metal part 11 of each gas diffusion electrode 90, 91, a catalyst 94 in contact with the electrolyte membrane 93 is formed by coating. Each of the air electrode 90 and the fuel electrode 91 facing each other with the electrolyte membrane 93 interposed therebetween is connected to the thin metal sheet tabs 92 by wires 97 so that the metal parts 11 are alternately connected in series. The located metal part 11 (metal thin plate tab 92) functions as an anode 95 and a cathode 96 of the battery.

  Here, the fuel supply part 98 that supplies fuel to the fuel electrode 91 has a structure including a porous part 99 that supplies and holds fuel by capillary action and a resin part 100 provided on the outer periphery for sealing. Yes. The fuel supply unit 98 and the fuel electrode 91 are fixed by, for example, ultrasonic bonding between the resin unit 100 of the fuel supply unit 98 and the resin unit 12 of the fuel electrode 91.

Moreover, the composite metal porous body 10 of the present invention can also be used as the gas diffusion electrode 110 in the fuel cell having the configuration as shown in FIGS.
The gas diffusion electrode 110 (10) is provided with a resin portion 12 so as to fill the space between the metal portions 11 and surround the entire outer periphery in a state where a plurality of metal portions 11 are arranged at intervals in the plane direction. The catalyst layer (not shown) is formed on one surface of each metal part 11. The fuel cell is configured such that the electrolyte layer 111 is sandwiched between the two gas diffusion electrodes 110, the catalyst layer of each gas diffusion electrode 110 faces the electrolyte layer 111, and the metal portions 11 are sequentially directly wired. ing.

The configuration shown in FIG. 12 is to sequentially connect the metal portions 11 arranged opposite to each other by a conductive U-shaped connection member 112 having a protrusion 112 a that bites into the metal portion 11.
Further, the configuration shown in FIG. 13 has a conductive portion having a sandwiching portion 113a that sandwiches the resin portion 12 portions in the vicinity of two opposing metal portions 11 and a connection portion 113b that extends from the sandwiching portion 113a toward the metal portion 11. The metal parts 11 arranged to face each other are sequentially connected in a brushed shape by the clip-shaped connecting member 113.
If it is set as the structure which connects the metal part 11 using such a connection member 112,113, it is not necessary to provide the metal thin plate tab 92 of another member as shown in FIG.

  Further, the composite metal porous body 10 of the present invention is used as a gas diffusion electrode 120 in a stack type solid polymer fuel cell (FIG. 14) having a structure in which an electrode 120, an electrolyte layer 121 and a separator plate 122 are laminated in multiple layers. You can also. The separator plate 122 is made of, for example, a carbon plate or a corrosion-resistant metal plate that does not allow air or fuel gas or liquid to pass therethrough.

  15 and 16 show the composite metal porous body 10 (gas diffusion electrode 120) of the present embodiment. The gas diffusion electrode 120 is a plate-shaped member that includes a resin portion 12 that surrounds the periphery of the metal portion 11 and extends in the surface direction. The gas diffusion electrode 120 passes through the resin portion 12 adjacent to the metal portion 11 and forms pores in the metal portion 11. Two communication holes 120a and 120b that communicate with each other, two through holes 120c and 120d that are provided at positions away from the metal part 11 and penetrate the resin part 12, and bolts that are provided at the four corners of the resin part 12 and are fixed Etc., and a bolt insertion hole 120e for inserting the like. These communication holes 120a, 120b and through holes 120c, 120d, 120e can be formed by a mold when the composite metal porous body 10 is manufactured.

The electrolyte layer 121 is provided with a through hole that communicates with each hole of the gas diffusion electrode 120.
That is, the electrolyte layer 121 is formed with through holes 121a communicating with the communication holes 120a, 120b and through holes 120c, 120d of the gas diffusion electrode, and bolt insertion holes (not shown) communicating with the bolt insertion holes 120e. Yes.
The separator plate 122 is also provided with through holes that communicate with the respective holes of the gas diffusion electrode 120. That is, the separator plate 122 is formed with through holes 122a communicating with the gas diffusion electrode communication holes 120a and 120b and through holes 120c and 120d, and bolt insertion holes (not shown) communicating with the bolt insertion holes 120e. Yes.

  The laminated gas diffusion electrode 120, electrolyte layer 121, and separator plate 122 can be fixed integrally by inserting bolts into the respective bolt insertion holes and fixing them with nuts.

The two gas diffusion electrodes 120 stacked with the electrolyte layer 121 interposed therebetween are arranged with the front and back sides different, one being the fuel electrode 120A and the other being the air electrode B.
That is, the communication hole 120a of the fuel electrode 120A and the through hole 120d of the air electrode 120B and the communication hole 120b of the fuel electrode 120A and the through hole 120c of the air electrode 120B communicate with each other in the thickness direction of the fuel cell (left and right in FIG. 14). A fuel supply path F1 and a fuel discharge path F2 extending in the direction) are formed. The fuel supplied to the fuel supply path F1 supplies hydrogen to the interface between the electrolyte layer 121 and the catalyst layer while passing through the continuous vent of the metal part 11 of each fuel electrode 120A, and the remaining gas is discharged through the fuel discharge path F2. Is done. FIG. 14 is a cross-sectional view taken along line AA shown in FIG. 15, and shows only the fuel supply path.

  Similarly, the communication hole 120c of the fuel electrode 120A and the through hole 120b of the air electrode 120B communicate with each other to form an air supply path (not shown) extending in the thickness direction of the fuel cell, and the fuel electrode 120A. The communication hole 120d and the through hole 120a of the air electrode 120B communicate with each other to form an air discharge path (not shown) extending in the thickness direction of the fuel cell (left and right direction in FIG. 14). The air supplied to the air supply path supplies oxygen to the interface between the electrolyte layer 121 and the catalyst layer while passing through the continuous air holes of the metal portion 11 of each air electrode 120B, and passes through the air discharge path together with water generated by the reaction. Discharged.

  That is, the fuel cell of this embodiment forms a single cell by sandwiching the electrolyte layer 121 between the two gas diffusion electrodes 120 and covering both surfaces with the separator plate 122. The fuel electrode 120A and the air electrode 120B are disposed with the separator plate 122 interposed therebetween, whereby the fuel electrode 120A and the air electrode 120B are hermetically separated and electrons are exchanged through the separator plate 122. Thus, a fuel cell in which a plurality of cells are connected in series can be configured.

  In addition, each structural member shown in the above embodiment, its various shapes, combinations, etc. are examples, and can be variously changed based on a design request | requirement in the range which does not deviate from the meaning of this invention. For example, in the said embodiment, although the metal part 11 was formed based on the green sheet G, not only this but a metal nonwoven fabric may be sufficient, for example.

  Provided are a composite metal porous body and a method for producing the same, in which the effective use area of the metal porous body is ensured and the handleability is improved.

DESCRIPTION OF SYMBOLS 10 Composite metal porous body 11 Metal part 12 Resin part 40 Filter (composite metal porous body)
50 Filler support plate (porous composite metal)
60 Water absorbing member (composite metal porous body)
70 electrode (porous composite metal)
71 Filter (porous composite metal)
80 Heat radiator (Composite metal porous body)
90, 91, 110, 120 Gas diffusion electrode (porous composite metal)

Claims (2)

  A sheet-like metal part made of a porous body having a three-dimensional network structure and a resin part extending in the surface direction of the metal part are integrally formed, and the metal part is made of titanium or a titanium alloy. A composite metal porous body.   The composite metal porous body according to claim 1, wherein the metal part is used as an insert part, and the composite metal porous body according to claim 1 is manufactured by performing insert molding in which the resin part is injection-molded so as to be continuous with an edge of the metal part. A method for producing a metal porous body.

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