KR20170132596A - The method and apparatus for manufacturing gasket - Google Patents

Abstract

A method for manufacturing a gasket for inhibiting generation of a gasket burr according to an embodiment of the present invention comprises the following steps: a separator plate preparing step for preparing a separator plate having a plurality of holes; an adhesion inhibitor applying step for applying an adhesion inhibitor capable of inhibiting adhesion of a gasket material to at least one hole formed in the separator plate; a drying step for drying the separator plate coated with the adhesion inhibitor; and a gasket manufacturing step for manufacturing a gasket on at least one side of the separator plate, which has been dried using the gasket material.

Description

TECHNICAL FIELD [0001] The present invention relates to a gasket forming method and apparatus for suppressing the formation of gasket burrs,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gasket forming method and apparatus for suppressing the formation of a gasket burr, and more particularly to a gasket forming method and apparatus for suppressing the formation of a gasket burr, And apparatus.

The basic structure of the fuel cell is a membrane-electrode assembly (MEA) in which an electrochemical reaction occurs, a gas diffusion layer (GDL) in which a reactive gas is uniformly dispersed in a membrane-electrode assembly, and a separator . Polymer Electrolyte Membrane Fuel Cell (PEMFC) is a power generation device that directly produces electricity by electrochemical reaction between hydrogen and oxygen.

In a polymer electrolyte membrane fuel cell, hydrogen is supplied through an anode which is a fuel electrode, and oxygen is supplied to a cathode which is an air electrode. The hydrogen supplied to the fuel electrode is separated into hydrogen ions and electrons by the electrode layers formed on both sides of the electrolyte. The hydrogen ions pass through the electrolyte membrane and are transferred to the air electrode. In the case of electrons, the hydrogen ions are collected through an outer conductor through a separator to generate an electric current. The hydrogen ions transferred to the air electrode meet with oxygen in the supplied air to form water.

The separator plate collects and delivers generated currents, prevents direct contact between hydrogen and oxygen to prevent the risk of explosion and burning, transports reaction gases and products, transfers heat of reaction, joins each electrode and catalyst, and gas diffusion layer It acts as a structure.

In addition, the gasket of the basic structure of the fuel cell is bonded to the separator plate, and serves as a standard for dividing each unit cell of the fuel cell stack. At the same time, hydrogen, cooling water, The sealing of the gasket and the selection of the gasket material should be carefully considered in the fabrication of the fuel cell stack.

In the manufacture of a fuel cell stack, metal separators are often used to reduce the volume of the stack. Metal separators generally form a flow path through a stamping process to reduce costs. The separator plate manufactured through the stamping process performs a gasket forming process on the separator plate for sealing. In the case of a metal separator, it is difficult to form a groove for positioning a gasket, and since it is difficult to adhere a rubber material, a liquid rubber material is coated and injected to form a metal separator plate A method of curing and adhering on the surface is generally applied. Although the method of manufacturing the metal separator gasket may be manufactured by a dispenser, a manufacturing method using a mold having excellent quality, precision and the like is used.

However, when the gasket is formed on the metal separator using the mold, the gasket may be formed in the distribution hole, the flow passage, or the like of the separator, not the desired formation position, so that gasket burrs may be generated. There is a problem that the performance of the fuel cell using the separator is greatly reduced. Therefore, a method and apparatus for suppressing the formation of gasket burrs in forming a gasket are required.

Korean Patent Laid-Open No. 10-2015-0019810 (hereinafter referred to as Patent Document 1) proposes a gasket burr removing system and method for a fuel cell integrated with a metal separator. This patent discloses a gasket deburring system for a fuel cell using a deburring device, but does not disclose a method for suppressing the formation of a gasket burr and forming a gasket.

Patent Document 1: Korean Patent Publication No. 10-2015-0019810

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gasket forming method and apparatus capable of suppressing the formation of gasket burrs on a separator plate.

A gasket forming method for suppressing the formation of a gasket burr according to an embodiment of the present invention includes a separator plate preparing step of preparing a separator plate having a plurality of holes, a step of preparing a gasket material for suppressing adhesion of the gasket material to at least one hole formed in the separator plate A drying step of drying the separator plate coated with the adhesion inhibitor, and a gasket formation step of forming a gasket on at least one side of the separator plate dried using the gasket material have.

The step of applying an adhesion inhibitor according to an embodiment of the present invention includes a fin preparation step of preparing a pin having an adhesion inhibitor supply means for supplying an adhesion inhibitor to a hole formed in a separation plate, And an adhesion inhibitor supplying step for supplying an adhesion inhibitor to the hole formed in the separator plate from the adhesion inhibitor supplying means of the pin.

The adhesion inhibitor supplying means according to an embodiment of the present invention may be a hygroscopic member attached to a pin and supplying an adhesion inhibitor to the hole formed in the separator plate by absorbing the adhesion inhibitor.

The adhesion inhibitor supply means according to an embodiment of the present invention may be a nozzle formed on the fin and supplying the adhesion inhibitor to the hole formed in the separation plate.

In the gasket forming step according to an embodiment of the present invention, a gasket may be injection-molded on a separator using a mold.

The plurality of holes formed in the separation plate according to an embodiment of the present invention may include at least one of a flow path, a manifold, a distribution hole, and an alignment hole.

A gasket forming apparatus for suppressing the production of a gasket bur according to another embodiment of the present invention includes a pin having an adhesion inhibitor supply means formed on a body and a body and supplying an adhesion inhibitor capable of inhibiting adhesion of a gasket material And the pin may be inserted into at least one of the plurality of holes formed in the separator plate to which the gasket is attached to supply the adhesion inhibitor.

The pin according to another embodiment of the present invention may be formed on the body at a position corresponding to the hole formed in the separator plate.

The adhesion inhibitor supplying means according to another embodiment of the present invention may be a hygroscopic body attached to a pin and supplying an adhesion inhibitor to the hole formed in the separator plate by absorbing the adhesion inhibitor.

According to another embodiment of the present invention, the adhesion inhibitor supply means may be a nozzle formed on the fin and supplying an adhesion inhibitor to the hole formed in the separation plate.

The adhesion inhibitor according to another embodiment of the present invention may be a material having water repellency.

The adhesion inhibitor according to another embodiment of the present invention may include at least one of a fluorinated water repellent agent, a silicone water repellent agent, and a oil repellent agent.

According to the method for forming a gasket according to an embodiment of the present invention, generation of a gasket burr, which may occur when a gasket is formed on a separator plate, can be suppressed without affecting the gasket forming process.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a gasket burr formed when a gasket is formed on a separator plate. FIG.
2 is a flowchart schematically showing a gasket forming method for suppressing the formation of a gasket bur according to an embodiment of the present invention.
3 is a flowchart schematically showing a step of applying an adhesion inhibitor according to an embodiment of the present invention.
4 is a view showing that a pin having a moisture absorber according to an embodiment of the present invention supplies an adhesion inhibitor to a hole formed in a separator plate.
FIG. 5 is a view showing that a pin formed with a nozzle according to an embodiment of the present invention supplies an adhesion inhibitor to a hole formed in a separation plate.
6 is a schematic view of a gasket forming apparatus for suppressing the formation of gasket burrs according to another embodiment of the present invention.
7 is a schematic view of a gasket forming apparatus for suppressing the generation of gasket burrs attached to pins on a hygroscopic body according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a gasket burr formed when a gasket is formed on a separator plate. FIG. Referring to FIG. 1, when the gasket is formed on the separator plate, the gasket material may be hardened at a position other than the desired position, and gasket burrs may be produced. For example, if the gasket bur is not removed in the distribution hole of the separator, problems that seriously affect the gas or coolant flow rate of the fuel cell may occur.

2 is a flowchart schematically showing a gasket forming method for suppressing the formation of a gasket bur according to an embodiment of the present invention.

Referring to FIG. 2, a gasket forming method for suppressing the formation of gasket burrs according to an embodiment of the present invention includes a separator plate preparing step S100 for preparing a separator plate 300 having a plurality of holes, (S200) for applying an adhesion inhibitor capable of inhibiting adhesion of the gasket material to at least one hole formed in the adhesive sheet (200), a drying step of drying the separator plate (300) coated with the adhesion inhibitor, and a step (S300) of forming a gasket on at least one surface of the dried separator plate (300).

According to the method of forming a gasket according to an embodiment of the present invention, generation of a gasket burr, which may occur when the gasket is formed in the separator plate 300, can be suppressed without affecting the gasket forming process. Therefore, it is possible to reduce the cost and time required for removing the gasket burr generated in the separator plate.

According to an embodiment of the present invention, in the separation plate preparation step (S100), a metal separation plate may be prepared as the separation plate 300, and a plurality of holes may be formed in the metal separation plate prepared using a stamping process . However, the kind of the separator and the method of forming the hole are only examples for explanation, but are not limited thereto.

As the gasket material, for example, a silicone-based material or a fluorine-based material excellent in elastic restoring force can be used, and it may be preferable to use a rubber material.

3 is a flowchart schematically showing a step of applying an adhesion inhibitor according to an embodiment of the present invention.

3, a step S200 of applying an adhesion inhibitor according to an embodiment of the present invention includes a step of providing a pin 200 having an adhesion inhibitor supply means for supplying an adhesion inhibitor to a hole formed in the separation plate 300, (S220) for moving the fin 200 to be inserted into at least one hole among the holes formed in the separation plate 300 and the separation plate 300 from the adhesion inhibitor supply means of the fin 200, And an adhesion inhibitor supplying step (S230) for supplying an adhesion inhibitor to the hole formed in the hole.

The adhesion inhibitor supply means can supply the adhesion inhibitor to the hole formed in the separation plate 300. [ The adhesion suppressing agent is applied to the inside of the hole and the inlet and outlet sides of the hole, thereby suppressing gasket burr formation at the inside, inlet and outlet side positions of the hole when forming the gasket in the separator plate 300. That is, it is possible to suppress the occurrence of gasket burrs at an unintended position on the separator plate without affecting the formation of the gasket on the separator plate, and the performance of the separator plate is reduced by the gasket burr formed in the holes The problem can be prevented.

The pin 200 or the separating plate 300 may be moved so that the pin 200 is inserted into at least one of the holes formed in the separating plate 300. For example, the separating plate 300 may be moved such that the pin 200 is inserted into the hole formed in the separating plate 300 by fixing the pin 200 at a predetermined position. Meanwhile, the pin 200 may be inserted into the hole formed in the separating plate 300 by fixing the separating plate 300 at a predetermined position and moving the pin 200.

A means known as a moving means for moving the pin 200 or the separating plate 300 may be used so that the pin 200 is inserted into at least one hole among the holes formed in the separating plate 300, There is no limitation as long as the means can move the separating plate 300.

4 is a view showing that a pin having a moisture absorber according to an embodiment of the present invention supplies an adhesion inhibitor to a hole formed in a separator plate.

The adhesion inhibitor supply means according to an embodiment of the present invention may be a hygroscopic body 210 attached on the fin 200 and supplying the adhesion inhibitor to the holes formed in the separation plate 300 by absorbing the adhesion inhibitor.

4, the fin 200 may be smaller than the hole formed in the separator 300 so that the fin 200 is inserted into the hole formed in the separator 300. The size of the hygroscopic body 210 attached to the fin 200 may be larger than the size of the holes formed in the separation plate 300 in order to supply the adhesion inhibitor to the inlet and outlet sides of the hole formed in the separation plate 300 May be preferably formed.

As shown in FIG. 4, the pin 200 or the separation plate 300 is moved so that the pin having the moisture absorber 210, which absorbs the adhesion suppression agent, is inserted into the hole formed in the separation plate 300. With the pin 200 inserted into the hole, the adhesion inhibitor can be supplied from the moisture absorber 210 to the inside, inlet, and outlet sides of the hole. It may be preferable to wait for a predetermined time in a state where the pin 200 is inserted into the hole so that the adhesion inhibitor can be sufficiently supplied to the hole. However, it may be desirable to adjust the waiting time so that the adhesion inhibitor does not flow out to a position where the gaskets other than the inside, inlet and outlet sides of the hole are normally to be formed.

FIG. 5 is a view showing that a pin formed with a nozzle according to an embodiment of the present invention supplies an adhesion inhibitor to a hole formed in a separation plate.

The adhesion inhibitor supplying means according to an embodiment of the present invention may be a nozzle 220 formed on the fin 200 and supplying the adhesion inhibitor to the hole formed in the separation plate 300.

5, the pin 200 or the separation plate 300 is moved, and the fin 200 having the nozzle 220 is inserted into the hole of the separation plate 300. As shown in FIG. With the pin 200 inserted into the hole, an adhesion inhibitor may be injected from the nozzle 220 formed in the fin 200 and supplied to the inside, inlet, and outlet sides of the hole.

The pin 200 can be rotated while being inserted into the hole so that the adhesion inhibitor can be supplied to the hole sufficiently. The region where the adhesion inhibitor is injected from the nozzle 220 can be limited. In this state, the adhesion inhibitor can be uniformly supplied to the desired position of the hole by rotating the fin 200 while injecting the adhesion inhibitor.

In the drying step according to an embodiment of the present invention, the solvent of the adhesion inhibitor applied to the separation plate 300 is evaporated to coat the separation inhibitor on the separation plate 300. May be different depending on the kind of the adhesion inhibitor applied to the separation plate 300. However, in order to prevent the deformation and the conductivity of the separation plate 300 from being affected, it may be preferable to dry at a temperature of 150 ° C or lower. However, the above-mentioned drying temperature is only an illustrative example and does not limit the drying temperature.

By drying the adhesion inhibitor applied to the separator plate 300, the adhesion inhibitor prevents the gasket from flowing to a position where the gasket should normally be formed other than the desired position, and the adhesion inhibitor can be fixed and fixed only at the desired position. In the portion coated with the adhesion inhibitor, adhering of the gasket material by the reduced surface energy is suppressed, thereby preventing occurrence of gasket burrs.

For the drying step, for example, the separator plate 300 coated with the adhesion inhibitor may be dried using an infrared heater. Further, the separating plate 300 can be dried by bringing the hot air or the cooling air into contact with the separating plate 300 coated with the adhesion suppressing agent, and can be naturally dried when the adhesion suppressing agent that is rapidly evaporated due to its strong volatility is used. However, the method of drying the separator described above is only an illustrative example, and the drying method is not limited thereto.

In the gasket forming step S400 according to an embodiment of the present invention, a gasket may be injection-molded on the separating plate 300 using a mold. In the gasket forming step S400, for example, the separating plate 300 is inserted between the upper mold and the lower mold, the gasket material is injected into the mold, and the gasket is formed on the separating plate 300 through the curing process A gasket may be formed on the separator plate 300 by molding the gasket material and then taking out the separator plate 300. However, the method of forming the gasket on the above-described separator is only an illustrative example, and the gasket forming method is not limited thereto.

The plurality of holes formed in the separation plate 300 according to an embodiment of the present invention may include at least one of a flow path, a manifold, a distribution hole, and an alignment hole. The separation plate 300 is provided with a manifold through which a raw material, an unreacted material or a reaction product moves, a reaction by-product water or a cooling medium such as cooling water, a distribution hole for uniformly distributing the flow rate to the separation plate, 300 may be used to form an alignment hole in which a support for alignment is installed in the manufacture of a fuel cell. A plurality of flow paths, manifolds, distribution holes, and alignment holes may be formed in the separation plate 300.

The separation plate 300 is formed by applying an adhesion inhibitor to a flow path, a manifold, a distribution hole, or an alignment hole formed in the separation plate 300, thereby suppressing the generation of gasket burrs, . In addition, even when a small amount of gasket burr is formed in the portion where the adhesion inhibitor is applied, the gasket bur can be easily removed, and the cost and time required for removing the gasket bur can be reduced.

6 is a schematic view of a gasket forming apparatus for suppressing the formation of gasket burrs according to another embodiment of the present invention.

The gasket forming apparatus for suppressing the generation of gasket burrs according to another embodiment of the present invention comprises a body 100 and an adhesion inhibitor supply unit 102 formed on the body 100 and supplying an adhesion inhibitor capable of inhibiting adhesion of the gasket material And the fin 200 may be inserted into at least one of a plurality of holes formed in the separator plate 300 to which the gasket is attached to supply the adhesion inhibitor.

The gasket forming apparatus according to another embodiment of the present invention can easily and easily supply the adhesion inhibitor to the separator plate to prevent the gasket burr from being generated at an unintended position on the separator plate.

The fin 200 may be formed on the body 100 in a size smaller than the hole size so that the pin 200 can be inserted into the hole formed in the separator plate 300.

The pin 200 according to another embodiment of the present invention may be formed on the body at a position corresponding to the hole formed in the separator plate. The gasket forming apparatus according to another embodiment of the present invention may include a gasket forming apparatus according to another embodiment of the present invention that can be inserted into the flow path, the manifold, the distribution hole, or the alignment hole, Pin 200 may be included. Hereinafter, for convenience of explanation, a gasket forming apparatus having a distribution hole formed in the separation plate 300 and a fin 200 inserted into the alignment hole to supply the adhesion inhibitor will be described in detail.

6 shows a gasket forming apparatus and a separator plate for suppressing the formation of a gasket burr according to another embodiment of the present invention. 6, a plurality of fins 200 formed on the body 100 are inserted into a plurality of distribution holes formed in the separation plate 300 and the alignment holes, The pin 200 may be formed on the body 100 at a position corresponding to the hole.

In addition, the pin 200 may be detachable and attachable on the body 100 so as to be installed on the body 100 at a position corresponding to the hole formed in the separation plate 300. For example, in order to use a gasket-forming device for suppressing the formation of gasket burrs in a conventional separator plate and a new separator plate in which the positions and the numbers of the holes are different from each other, It can be attached on the body.

7 is a schematic view of a gasket forming apparatus for suppressing the generation of gasket burrs attached to pins on a hygroscopic body according to another embodiment of the present invention.

The adhesion inhibitor supplying means according to another embodiment of the present invention may be a hygroscopic body 210 attached on the fin 200 and supplying an adhesion inhibitor to the hole formed in the separating plate 300 by absorbing the adhesion inhibiting agent.

It is preferable that the moisture absorber 210 is made of a material having porosity and elasticity. For example, a sponge having porosity and elasticity can be used as the hygroscopic material, but the kind of the hygroscopic material is not limited. The moisture absorber 210 may be formed to be slightly larger than the hole of the separator. Referring to FIG. 4, the moisture absorber 210, which is larger than the hole of the separator 300, has elasticity and can be restored to its original size after being inserted into the hole in a compressed state. Thus, the moisture absorber 210 can be contacted to the inside, the inlet and the outlet sides of the hole, and the adhesion inhibitor can be supplied to the inside, the inlet and the outlet side of the hole.

In addition, the moisture absorber 210 may be formed to be detachable and attachable to the fin 200. When the adhesion inhibitor that absorbs moisture to the moisture absorber is used as another kind, or when the moisture absorber is damaged or damaged, it can be replaced with a new moisture absorber.

The adhesion inhibitor supply means according to another embodiment of the present invention may be a nozzle 220 formed on the fin 200 and supplying an adhesion inhibitor to a hole formed in the separation plate 300. The gasket forming apparatus includes, for example, a storage tank (not shown) for storing an adhesion inhibitor, a pump (not shown) for sucking and discharging the adhesion inhibitor from the storage tank, And a pipe (not shown) for connecting the pump and the nozzle 220 to each other.

A plurality of nozzles 220 may be formed on the fin 200 and an adhesion inhibitor may be injected from the plurality of nozzles 220 to be supplied to the inner, inlet, and outlet sides of the holes. Further, by adjusting the injection angle of the nozzle 220, it is possible to accurately supply the adhesion inhibitor to a desired position of the hole.

Further, the gasket forming apparatus may have a rotating means for rotating the pin 200 inserted in the hole formed in the separating plate 300. It is possible to drive the rotating means in a state in which the pin 200 is inserted into the hole of the separating plate 300 to uniformly supply the adhesion suppressing agent to a desired position of the hole.

The adhesion inhibitor according to another embodiment of the present invention may be a material having water repellency. The surface to which the adhesion inhibitor having water repellency is applied has a low surface energy and adhesion of a gasket material such as a rubber material can be prevented. Therefore, by applying the adhesion suppressing agent having water repellency to the holes of the separator plate 300, gasket burrs in the holes can be prevented from being generated.

The adhesion inhibitor according to another embodiment of the present invention may include at least one of a fluorinated water repellent agent, a silicone water repellent agent, and a oil repellent agent. As the fluorine-based water repellent agent, for example, polytetrafluoroethylene can be used. As the silicone water repellent, for example, silica (SiO ₂ ) can be used. However, the kind of the above-mentioned adhesion inhibitor is only an example for explanation, and the kind of the adhesion inhibitor is not limited.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Body
200: pin
210:
220: Nozzle
300: separator plate

Claims (12)

A separation plate preparation step of preparing a separation plate having a plurality of holes;
Applying an adhesion inhibitor that applies an adhesion inhibitor capable of inhibiting adhesion of a gasket material to at least one hole formed in the separator;
A drying step of drying the separator plate coated with the adhesion inhibitor; And
Forming a gasket on at least one side of the dried separator using the gasket material; Wherein the gasket burying step includes the step of forming a gasket.
The method according to claim 1,
The step of applying the adhesion-
A pin preparation step of preparing a pin provided with an adhesion inhibitor supply means for supplying the adhesion inhibitor to a hole formed in the separation plate;
A moving step of moving the pin so as to be inserted into at least one of holes formed in the separating plate; And
An adhesion inhibiting agent supply step of supplying the adhesion inhibiting agent from the adhesion inhibiting agent supply means of the pin to the hole formed in the separation plate; Wherein the gasket burying step includes the step of forming a gasket.
3. The method of claim 2,
Wherein the adhesion inhibitor supplying means comprises:
Wherein the adhesion suppressor is attached to the pin and absorbs the adhesion inhibitor to supply the adhesion inhibitor to the hole formed in the separator plate.
3. The method of claim 2,
Wherein the adhesion inhibitor supplying means comprises:
Wherein the nozzle is a nozzle formed on the fin and supplying the adhesion inhibitor to the hole formed in the separator.
The method according to claim 1,
Wherein the gasket forming step comprises injection molding a gasket on a separator using a mold.
The method according to claim 1,
Wherein the plurality of holes formed in the separator plate include at least one of a flow path, a manifold, a distribution hole, and an alignment hole.
body; And
A pin provided on the body and having an adhesion inhibitor supply means for supplying an adhesion inhibitor capable of inhibiting adhesion of the gasket material; ≪ / RTI &
Wherein the pin is inserted into at least one of a plurality of holes formed in a separating plate to which a gasket is attached to supply an adhesion inhibitor.
8. The method of claim 7,
Wherein the pin is formed on the body at a position corresponding to the hole formed in the separator plate.
8. The method of claim 7,
Wherein the adhesion inhibitor supplying means comprises:
Wherein the adhesion suppressor is attached to the pin and absorbs the adhesion inhibitor to supply the adhesion inhibitor to the hole formed in the separator plate.
8. The method of claim 7,
Wherein the adhesion inhibitor supplying means comprises:
Wherein the nozzle is a nozzle formed on the fin and supplies the adhesion inhibitor to a hole formed in the separator plate.
8. The method of claim 7,
Wherein the adhesion inhibitor is a material having water repellency.
8. The method of claim 7,
Wherein the adhesion inhibitor comprises at least one of a fluorine-based water repellent agent, a silicone-based water repellent agent, and a oil repellent agent.

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