JP2014206185A - Manufacturing method of plate-integrated gasket - Google Patents

Manufacturing method of plate-integrated gasket Download PDF

Info

Publication number
JP2014206185A
JP2014206185A JP2013082625A JP2013082625A JP2014206185A JP 2014206185 A JP2014206185 A JP 2014206185A JP 2013082625 A JP2013082625 A JP 2013082625A JP 2013082625 A JP2013082625 A JP 2013082625A JP 2014206185 A JP2014206185 A JP 2014206185A
Authority
JP
Japan
Prior art keywords
plate
mold
separator
sealing material
outer peripheral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2013082625A
Other languages
Japanese (ja)
Other versions
JP6013261B2 (en
Inventor
古賀　正太郎
Shotaro Koga
正太郎 古賀
武史 眞坂
Takeshi Shinsaka
武史 眞坂
林　隆浩
Takahiro Hayashi
隆浩 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nok Corp filed Critical Nok Corp
Priority to JP2013082625A priority Critical patent/JP6013261B2/en
Publication of JP2014206185A publication Critical patent/JP2014206185A/en
Application granted granted Critical
Publication of JP6013261B2 publication Critical patent/JP6013261B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Gasket Seals (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fuel Cell (AREA)

Abstract

PROBLEM TO BE SOLVED: To eliminate the generation of burrs caused by a movable part for pressing a plate in a cavity, and to reduce costs, in the manufacturing of a plate-integrated gasket in which seal materials which are continued to each other at front/rear both surfaces of an external periphery of the plate.SOLUTION: A plate 101 is inserted between a pair of first divided molds of a first metal mold, and an external peripheral part of the plate is sandwiched between external periphery pressing faces of the first divided molds by mold-caulking, a first seal material 102 is integrally molded at one face 101a of the plate 101, an integrated molded product of the plate 101 and the first seal material 102 is drawn out of the first metal mold, and sandwiched between a pair of second divided molds 21, 22 of a second metal mold 2 by mold-caulking, a molding material is filled into a second cavity which is defined by mold-caulking between and among the second divided molds 21, 22, the plate 101 and the first seal material 102, and a second seal material 103 which is continued from the first seal material 102 is integrally molded at the other face 101b of the plate 101.

Description

本発明は、例えば燃料電池セルを構成するセパレータなどのプレートの外周部にガスケット本体が一体に設けられたプレート一体ガスケットを製造する方法に関する。   The present invention relates to a method of manufacturing a plate-integrated gasket in which a gasket body is integrally provided on an outer peripheral portion of a plate such as a separator constituting a fuel cell, for example.

燃料電池は、電解質膜の両面に一対の電極層を設けた膜電極複合体（ＭＥＡ：Membrane Electrode Assembly）の厚さ方向両側にセパレータを積層して燃料電池セルとし、さらにこの燃料電池セルを多数積層したスタック構造となっている。そして酸化ガス（空気）が膜電極複合体のカソード側に供給され、燃料ガス（水素）が膜電極複合体のアノード側に供給され、水の電気分解の逆反応である電気化学反応、すなわち水素と酸素から水を生成する反応によって、電力を発生するものである。   In a fuel cell, separators are stacked on both sides in the thickness direction of a membrane electrode assembly (MEA) having a pair of electrode layers on both sides of an electrolyte membrane to form a fuel cell. It has a stacked structure. Then, the oxidizing gas (air) is supplied to the cathode side of the membrane electrode assembly, and the fuel gas (hydrogen) is supplied to the anode side of the membrane electrode assembly. Electricity is generated by a reaction that generates water from oxygen and oxygen.

この種の燃料電池は、各燃料電池セルに、燃料ガスや酸化ガス、上述の電気化学反応により生成された水や、余剰空気等をシールするためのプレート一体ガスケットが用いられる。このプレート一体ガスケットは、図６に示すように、例えば金属製セパレータａの外周部にゴム状弾性材料（ゴム材料又はゴム状弾性を有する合成樹脂材料）からなるシール材ｂを一体に設けたものであり、電気絶縁性を確保するために、前記シール材ｂをセパレータａの外周部の表裏両面に設けることが知られている。   In this type of fuel cell, a plate-integrated gasket for sealing fuel gas, oxidizing gas, water generated by the above-described electrochemical reaction, surplus air, and the like is used for each fuel cell. As shown in FIG. 6, this plate-integrated gasket is obtained by integrally providing a sealing material b made of a rubber-like elastic material (rubber material or synthetic resin material having rubber-like elasticity) on the outer periphery of a metal separator a, for example. In order to ensure electrical insulation, it is known that the sealing material b is provided on both the front and back surfaces of the outer peripheral portion of the separator a.

セパレータａの外周部の表裏両面にシール材ｂを射出成形により一体に設けるには、図７に示すように、セパレータａを金型ｃにセットし、型締めによってセパレータａの外周部の表裏両側と金型ｃの間に画成されるキャビティｄに未硬化の液状ゴム材料を充填して架橋硬化させるが、この方法では、注入口ｅからの液状ゴム材料の流入圧力等によって、セパレータａが曲げ変形されてしまうおそれがあり、最悪の場合は、変形したセパレータａの外周部がシール材ｂから露出する懸念もあり、シール材ｂによる電気絶縁性が損なわれるおそれがあった。   In order to integrally provide the sealing material b on both the front and back surfaces of the outer periphery of the separator a by injection molding, as shown in FIG. 7, the separator a is set in a mold c and both the front and back surfaces of the outer periphery of the separator a are clamped. The cavity d defined between the mold c and the mold c is filled with an uncured liquid rubber material to be crosslinked and cured. In this method, the separator a is formed by the inflow pressure of the liquid rubber material from the inlet e. There is a risk of bending deformation, and in the worst case, there is a concern that the outer peripheral portion of the deformed separator a is exposed from the sealing material b, which may impair the electrical insulation by the sealing material b.

そこで、このような射出圧力等によるセパレータａの変形を防止するためには、例えば特許文献１に記載のように、まず一面側に第一のシール材を射出成形してから、他面側に第二のシール材を射出成形するといった２色成形によるものがある。   Therefore, in order to prevent the deformation of the separator a due to such injection pressure or the like, for example, as described in Patent Document 1, first, the first sealing material is injection-molded on one side, and then on the other side. There is a two-color molding such as injection molding of the second sealing material.

また、特許文献１に記載の２色成形では、セパレータの一面側と他面側において第一の及び第二のシール材が互いに不連続となっているが、絶縁被覆という観点からは、セパレータの外周部の表裏面は完全被覆されていることが望ましく、そのために例えば特許文献２に記載方法では、セパレータの外周部の表裏面に連続する一つながりのシール材を一体成形している。   Further, in the two-color molding described in Patent Document 1, the first and second sealing materials are discontinuous with each other on the one surface side and the other surface side of the separator. It is desirable that the front and back surfaces of the outer peripheral portion are completely covered. For this purpose, for example, in the method described in Patent Document 2, a continuous seal material continuous with the front and back surfaces of the outer peripheral portion of the separator is integrally formed.

特開平１１−１２９３９６号公報JP 11-129396 A 特許第４３９８７６３号公報Japanese Patent No. 4398763

しかしながら、特許文献２に記載の技術のように、キャビティ内でセパレータを押さえるための可動部（支持体）を設けた場合、その周囲の隙間に液状成形材料が浸入することによるゴムバリが発生し、バリ除去工程などによる製品の仕上げが必要になり、コストの上昇が懸念される。   However, as in the technique described in Patent Document 2, when a movable part (support) for pressing the separator in the cavity is provided, a rubber burr is generated due to the liquid molding material intruding into a gap around the periphery, It is necessary to finish the product by a deburring process or the like, and there is a concern about an increase in cost.

本発明は、以上のような点に鑑みてなされたものであって、その技術的課題は、プレートの外周部の表裏両面に互いに連続したシール材が一体に設けられたプレート一体ガスケットの製造において、キャビティ内でプレートを押さえるための可動部によるバリの発生をなくし、コストを低減することにある。   The present invention has been made in view of the above points, and its technical problem is in the production of a plate-integrated gasket in which sealing materials that are continuous with each other are integrally provided on both the front and back surfaces of the outer periphery of the plate. It is to eliminate the generation of burrs due to the movable part for pressing the plate in the cavity, and to reduce the cost.

上述した技術的課題を有効に解決するための手段として、請求項１の発明に係るプレート一体ガスケットの製造方法は、一対の第一分割型からなる第一金型の前記第一分割型の間にプレートを挿入すると共にその外周部を前記第一分割型に形成された外周押さえ面の間に型締めによって挟持する工程と、一方の第一分割型と前記プレートの一面側との間に型締めによって画成された第一キャビティに成形材料を充填することにより前記プレートの一面に第一シール材を一体成形する工程と、前記プレートと第一シール材の一体成形物を前記第一金型から取り出して、一対の第二分割型からなる第二金型の前記第二分割型の間に挿入すると共に前記第二分割型の間に前記プレートを型締めによって挟持する工程と、前記第二分割型と前記プレート及び前記第一シール材との間に型締めによって画成され前記プレートの他面側へ延びる第二キャビティに成形材料を充填し、前記プレートの他面に前記第一シール材から連続した第二シール材を一体成形する工程と、を備えることを特徴とするものである。   As a means for effectively solving the technical problem described above, a method for manufacturing a plate-integrated gasket according to the invention of claim 1 is provided between the first divided molds of a first mold comprising a pair of first divided molds. A plate is inserted between the outer peripheral pressing surface formed in the first divided mold and clamped between the outer peripheral pressing surfaces, and a mold is formed between one first divided mold and the one surface side of the plate. A step of integrally molding a first sealing material on one surface of the plate by filling a molding material into a first cavity defined by tightening; and an integrated molding of the plate and the first sealing material in the first mold The second mold comprising a pair of second split molds and inserted between the second split molds and sandwiching the plate between the second split molds by clamping, and Split type and play And a second cavity defined by clamping between the first sealing material and extending to the other surface side of the plate is filled with a molding material, and the second surface of the plate is continuous from the first sealing material. And a step of integrally molding the sealing material.

請求項２の発明に係るプレート一体ガスケットの製造方法は、請求項１に記載の製造方法において、プレートと第一シール材の一体成形物を、第一金型から取り出して第二金型の一対の第二分割型間に挿入する際に表裏反転させることを特徴とするものである。   The manufacturing method of the plate-integrated gasket according to the invention of claim 2 is the manufacturing method according to claim 1, wherein the integrally molded product of the plate and the first sealing material is taken out from the first mold and a pair of the second mold. When being inserted between the second divided molds, the front and back are reversed.

本発明に係るプレート一体ガスケットの製造方法によれば、第一金型の一対の第一分割型の間に挿入したプレートの外周部を、前記第一分割型に形成された外周押さえ面の間に型締めによって挟持して、成形材料の賦形圧力によるプレートの外周部の変形を防止するものであるため、キャビティ内でプレートを押さえるための可動部が存在せず、このため可動部に起因するバリの発生が防止され、コストを低減することができる。   According to the method for manufacturing a plate-integrated gasket according to the present invention, the outer peripheral portion of the plate inserted between the pair of first split molds of the first mold is placed between the outer peripheral pressing surfaces formed in the first split mold. This is to prevent deformation of the outer periphery of the plate due to the molding pressure of the molding material, and there is no moving part to hold the plate in the cavity. The generation of burrs is prevented, and the cost can be reduced.

また、第一シール材が一体成形されたプレートを、第一金型から取り出して第二金型の一対の第二分割型間に挿入する際に表裏反転させることで、第一金型による第一キャビティへの成形材料の充填と、第二金型による第二キャビティへの成形材料の充填を同じ方向から行うことができ、しかも、プレートが第一シール材によって位置決めされると共に支持されるため、品質に優れたプレート一体ガスケットが得られる。   In addition, when the plate on which the first seal material is integrally formed is taken out of the first mold and inserted between the pair of second divided molds of the second mold, the plate is reversed so that the first mold The filling of the molding material into one cavity and the filling of the molding material into the second cavity by the second mold can be performed from the same direction, and the plate is positioned and supported by the first sealing material. A plate-integrated gasket with excellent quality can be obtained.

本発明に係るプレート一体ガスケットの製造方法の好ましい実施の形態により製造されるセパレータ一体ガスケットを示すもので、（Ａ）は平面図、（Ｂ）は（Ａ）におけるＢ−Ｂ断面図である。The separator integrated gasket manufactured by preferable embodiment of the manufacturing method of the plate integrated gasket which concerns on this invention is shown, (A) is a top view, (B) is BB sectional drawing in (A). 本発明に係るプレート一体ガスケットの製造方法の好ましい実施の形態において、セパレータを第一金型の一対の第一分割型間に挿入し型締めした状態を示す断面図である。In preferred embodiment of the manufacturing method of the plate integral gasket which concerns on this invention, it is sectional drawing which shows the state which inserted and clamped the separator between a pair of 1st division molds of a 1st metal mold | die. 本発明に係るプレート一体ガスケットの製造方法の好ましい実施の形態において、セパレータの一面に第一シール材を一体成形した状態を示す断面図である。In preferred embodiment of the manufacturing method of the plate integral gasket which concerns on this invention, it is sectional drawing which shows the state which integrally molded the 1st sealing material on the one surface of the separator. 本発明に係るプレート一体ガスケットの製造方法の好ましい実施の形態において、第一シール材を一体成形したセパレータを第二金型の一対の第二分割型間に挿入し型締めした状態を示す断面図である。Sectional drawing which shows the state which inserted and clamped the separator which integrally molded the 1st sealing material between a pair of 2nd division molds of a 2nd metal mold | die in preferable embodiment of the manufacturing method of the plate integrated gasket which concerns on this invention. It is. 本発明に係るプレート一体ガスケットの製造方法の好ましい実施の形態において、セパレータの他面に第一シール材から連続した第二シール材を一体成形した状態を示す断面図である。In preferred embodiment of the manufacturing method of the plate integrated gasket which concerns on this invention, it is sectional drawing which shows the state which integrally molded the 2nd sealing material continuous from the 1st sealing material on the other surface of the separator. セパレータの両面にシール材が一体成形された従来の技術によるセパレータ一体ガスケットを示す断面図である。It is sectional drawing which shows the separator integrated gasket by the prior art by which the sealing material was integrally molded on both surfaces of the separator. 従来のプレート一体ガスケットの製造方法の一例を示す断面図である。It is sectional drawing which shows an example of the manufacturing method of the conventional plate integrated gasket.

以下、本発明に係るプレート一体ガスケットの製造方法を燃料電池のセパレータ一体ガスケットの製造に適用した好ましい実施の形態について、図面を参照しながら説明する。   Hereinafter, a preferred embodiment in which the method for producing a plate-integrated gasket according to the present invention is applied to the manufacture of a separator-integrated gasket for a fuel cell will be described with reference to the drawings.

まず図１は、本発明に係るプレート一体ガスケットの製造方法により製造された燃料電池用セパレータ一体ガスケット１００の一例を示すもので、参照符号１０１は燃料電池セルを構成する金属製のセパレータ、参照符号１０２はセパレータ１０１の外周部の一面１０１ａに一体成形された第一シール材、参照符号１０３は第一シール材１０２の外周側からセパレータ１０１の外周部の他面１０１ｂに廻り込むように一体成形され第一シール材１０２と連続した第二シール材である。セパレータ１０１は請求項１に記載されたプレートに相当するものである。   First, FIG. 1 shows an example of a separator integrated gasket 100 for a fuel cell manufactured by the method for manufacturing a plate integrated gasket according to the present invention. Reference numeral 101 denotes a metal separator constituting the fuel cell, and reference numeral 102 is a first sealing material integrally formed on one surface 101 a of the outer peripheral portion of the separator 101, and reference numeral 103 is integrally formed so as to go around from the outer peripheral side of the first sealing material 102 to the other surface 101 b of the outer peripheral portion of the separator 101. This is a second sealing material continuous with the first sealing material 102. The separator 101 corresponds to the plate described in claim 1.

第一シール材１０２は、電気絶縁性のゴム状弾性材料（ゴム材料又はゴム状弾性を有する合成樹脂材料）からなるものであって、セパレータ１０１の外周部の一面１０１ａに接合された基部１０２ａと、この基部１０２ａから山形に隆起したシールリップ１０２ｂからなる。また、第二シール材１０３は、第一シール材１０２の基部１０２ａに接合されると共にセパレータ１０１の外周部の他面１０１ｂへ廻り込むようにこのセパレータ１０１に接合された基部１０３ａと、この基部１０３ａから第一シール材１０２のシールリップ１０２ｂと反対側で山形に隆起したシールリップ１０３ｂからなる。   The first sealing material 102 is made of an electrically insulating rubber-like elastic material (rubber material or synthetic resin material having rubber-like elasticity), and has a base portion 102a joined to one surface 101a of the outer peripheral portion of the separator 101. The seal lip 102b bulges in a mountain shape from the base 102a. The second sealing material 103 is joined to the base portion 102a of the first sealing material 102, and is joined to the other surface 101b of the outer peripheral portion of the separator 101, and the base portion 103a is joined to the separator 101. The seal lip 103b bulges in a mountain shape on the opposite side of the first seal material 102 from the seal lip 102b.

上記構成を備えるセパレータ一体ガスケット１００は、燃料電池セルを構成する積層部品として用いられ、第一シール材１０２のシールリップ１０２ｂ及び第二シール材１０３のシールリップ１０３ｂが、適当に圧縮された状態で他の積層部品（例えばＭＥＡ）と密接されることによって、燃料電池セルに供給される燃料ガスや酸化ガス、電気化学反応により生成される水、あるいは余剰空気などに対するシール機能を奏するものである。   The separator-integrated gasket 100 having the above-described configuration is used as a laminated part constituting a fuel battery cell, and the seal lip 102b of the first seal material 102 and the seal lip 103b of the second seal material 103 are appropriately compressed. By being in close contact with other laminated parts (for example, MEA), a sealing function against fuel gas or oxidizing gas supplied to the fuel cell, water generated by an electrochemical reaction, excess air, or the like is achieved.

図２〜図５は、本発明に係るプレート一体ガスケットの製造方法を上記セパレータ一体ガスケット１００の製造に適用した実施の形態を示すものである。   2 to 5 show an embodiment in which the method for producing a plate-integrated gasket according to the present invention is applied to the production of the separator-integrated gasket 100. FIG.

図２及び図３において、参照符号１は互いに上下に衝合・分離可能な第一上型１１及び第一下型１２からなる第一金型である。第一上型１１及び第一下型１２は、請求項１に記載された一対の第一分割型に相当するものである。   2 and 3, reference numeral 1 denotes a first mold composed of a first upper mold 11 and a first lower mold 12 that can collide and separate from each other vertically. The first upper mold 11 and the first lower mold 12 correspond to a pair of first split molds described in claim 1.

第一上型１１の内面（下面）には、内周押さえ面１１ａと、その外周側の第一キャビティ形成面１１ｂと、この第一キャビティ形成面１１ｂに向けて開口した注入口１１ｃと、第一キャビティ形成面１１ｂの外周側の外周押さえ面１１ｄが形成され、第一下型１２の内面（上面）には、第一上型１１の内周押さえ面１１ａと対向する内周押さえ面１２ａと、その外周側にあって第一上型１１の外周押さえ面１１ｄと対向する外周押さえ面１２ｂが形成されている。第一下型１２の内周押さえ面１２ａと外周押さえ面１２ｂは互いに連続した平面をなしている。また、第一上型１１の外周押さえ面１１ｄは、全周に連続して形成されているものであっても良いし、断続していても良い。   The inner surface (lower surface) of the first upper mold 11 has an inner peripheral holding surface 11a, a first cavity forming surface 11b on the outer peripheral side, an injection port 11c opened toward the first cavity forming surface 11b, An outer peripheral pressing surface 11d on the outer peripheral side of the one cavity forming surface 11b is formed, and an inner peripheral pressing surface 12a opposite to the inner peripheral pressing surface 11a of the first upper mold 11 is formed on the inner surface (upper surface) of the first lower mold 12. An outer peripheral pressing surface 12b that is on the outer peripheral side and faces the outer peripheral pressing surface 11d of the first upper mold 11 is formed. The inner peripheral pressing surface 12a and the outer peripheral pressing surface 12b of the first lower mold 12 form a continuous plane. Moreover, the outer periphery pressing surface 11d of the first upper mold 11 may be formed continuously over the entire periphery, or may be intermittent.

そしてこの第一金型１は、型締めによって第一上型１１の内周押さえ面１１ａ及び外周押さえ面１１ｄと、第一下型１２の内周押さえ面１２ａ及び外周押さえ面１２ｂの間でセパレータ１０１を厚さ方向両側（上下）から挟持すると共に、このセパレータ１０１の外周部の一面１０１ａと第一上型１１の第一キャビティ形成面１１ｂの間に、第一キャビティ１３が画成されるようになっている。   And this 1st metal mold | die 1 is a separator between the inner peripheral holding surface 11a and the outer peripheral holding surface 11d of the 1st upper mold | type 11, and the inner peripheral holding surface 12a and the outer peripheral holding surface 12b of the 1st lower mold | type 12 by clamping. 101 is sandwiched from both sides (upper and lower) in the thickness direction, and a first cavity 13 is defined between one surface 101a of the outer peripheral portion of the separator 101 and the first cavity forming surface 11b of the first upper mold 11. It has become.

すなわち図１に示すセパレータ一体ガスケット１００を製造するには、まず図２に示すように、第一金型１の第一上型１１と第一下型１２の間にセパレータ１０１を位置決め挿入すると共に、型締めによって、第一上型１１の内周押さえ面１１ａ及び外周押さえ面１１ｄと、第一下型１２の内周押さえ面１２ａ及び外周押さえ面１２ｂの間で挟持する。   That is, in order to manufacture the separator integrated gasket 100 shown in FIG. 1, first, as shown in FIG. 2, the separator 101 is positioned and inserted between the first upper mold 11 and the first lower mold 12 of the first mold 1. The mold is clamped between the inner circumferential pressing surface 11a and the outer circumferential pressing surface 11d of the first upper mold 11 and the inner circumferential pressing surface 12a and the outer circumferential pressing surface 12b of the first lower mold 12.

そして、第一上型１１とセパレータ１０１との間に画成された第一キャビティ１３に、未硬化の液状ゴム材料を充填し、架橋硬化させることによって、図３に示すように、前記セパレータ１０１の外周部の一面１０１ａに第一シール材１０２を一体成形する。このとき、セパレータ１０１の外周部は、第一キャビティ１３の外周側で、第一上型１１の外周押さえ面１１ｄと第一下型１２の外周押さえ面１２ｂによって厚さ方向両側から挟持されているので、第一上型１１に開設された注入口１１ｃから第一キャビティ１３内へ射出される液状ゴム材料の賦形圧力によってセパレータ１０１の外周部が曲げ変形を受けるようなことがない。   Then, the first cavity 13 defined between the first upper mold 11 and the separator 101 is filled with an uncured liquid rubber material and cured by cross-linking, as shown in FIG. The first sealing material 102 is integrally formed on the one surface 101a of the outer peripheral portion of the. At this time, the outer peripheral portion of the separator 101 is sandwiched from both sides in the thickness direction by the outer peripheral pressing surface 11 d of the first upper mold 11 and the outer peripheral pressing surface 12 b of the first lower mold 12 on the outer peripheral side of the first cavity 13. Therefore, the outer peripheral portion of the separator 101 is not subjected to bending deformation due to the shaping pressure of the liquid rubber material injected into the first cavity 13 from the injection port 11 c opened in the first upper mold 11.

また、セパレータ１０１の外周部を、第一上型１１に形成された外周押さえ面１１ｄと第一下型１２に形成された外周押さえ面１２ｂ間に、型締めによって挟持するものであるため、第一金型１には第一キャビティ１３内でセパレータ１０１の外周部を押さえるための可動部が存在せず、このため可動部に起因するバリの発生が防止され、バリ除去作業が不要となる。   Further, since the outer peripheral portion of the separator 101 is clamped between the outer peripheral pressing surface 11d formed on the first upper mold 11 and the outer peripheral pressing surface 12b formed on the first lower mold 12 by clamping, There is no movable part for pressing the outer peripheral part of the separator 101 in the first cavity 13 in the one mold 1, so that the generation of burrs due to the movable part is prevented, and the burr removal work becomes unnecessary.

次に第一金型１を型開きして、この第一金型１からセパレータ１０１と第一シール材１０２の一体成形物を取り出し、図４に示すように、これを表裏（上下）反転させて、第二金型２に挿入する。第二金型２は、互いに上下に衝合・分離可能な第二上型２１及び第二下型２２からなるものであって、第二上型２１及び第二下型２２は、請求項１に記載された一対の第二分割型に相当するものである。   Next, the first mold 1 is opened, and an integrally molded product of the separator 101 and the first sealing material 102 is taken out from the first mold 1 and is turned upside down (up and down) as shown in FIG. And insert into the second mold 2. The second mold 2 is composed of a second upper mold 21 and a second lower mold 22 that can be abutted and separated from each other vertically, and the second upper mold 21 and the second lower mold 22 are defined in claim 1. This corresponds to the pair of second split molds described in 1).

第二上型２１の内面（下面）には、押さえ面２１ａと、その外周側の第二キャビティ形成面２１ｂと、この第二キャビティ形成面２１ｂに向けて開口した注入口２１ｃが形成され、第二下型２２の内面（上面）には、型締め状態において第二上型２１の押さえ面２１ａと対向する押さえ面２２ａと、その外周側にあって前記第二キャビティ形成面２１ｂと対称の断面形状を呈し、第一シール材１０２と嵌合可能な第一シール材保持面２２ｂが形成されている。   The inner surface (lower surface) of the second upper mold 21 is formed with a pressing surface 21a, a second cavity forming surface 21b on the outer peripheral side thereof, and an inlet 21c opened toward the second cavity forming surface 21b. The inner surface (upper surface) of the two lower molds 22 has a pressing surface 22a that faces the pressing surface 21a of the second upper mold 21 in the clamping state, and a cross section that is on the outer peripheral side and symmetrical to the second cavity forming surface 21b. A first sealing material holding surface 22b that has a shape and can be fitted to the first sealing material 102 is formed.

すなわちこの第二金型２は、型締めによって、第二上型２１の押さえ面２１ａと第二下型２２の押さえ面２２ａの間でセパレータ１０１を厚さ方向両側から挟持すると共に、このセパレータ１０１に先行して一体成形された第一シール材１０２を第二下型２２の第一シール材保持面２２ｂに嵌合した状態で、セパレータ１０１の外周部及び第一シール材１０２と、第二上型２１の第二キャビティ形成面２１ｂ及び第二下型２２の第一シール材保持面２２ｂとの間に、第二キャビティ２３が画成されるようになっている。   That is, the second mold 2 clamps the separator 101 between the pressing surface 21a of the second upper mold 21 and the pressing surface 22a of the second lower mold 22 from both sides in the thickness direction by clamping. In the state where the first sealing material 102 integrally formed prior to the first sealing material 102 is fitted to the first sealing material holding surface 22b of the second lower mold 22, the outer periphery of the separator 101, the first sealing material 102, and the second upper A second cavity 23 is defined between the second cavity forming surface 21 b of the mold 21 and the first sealing material holding surface 22 b of the second lower mold 22.

そして、第二キャビティ２３に、未硬化の液状ゴム材料を充填し、架橋硬化させることによって、図５に示すように、前記セパレータ１０１の外周部の他面１０１ｂに第二シール材１０３を一体成形する。このとき、第二上型２１の押さえ面２１ａと第二下型２２の押さえ面２２ａによる挟持部から第二キャビティ２３内へ張り出したセパレータ１０１の外周部は、第一シール材１０２を介して第二下型２２の第一シール材保持面２２ｂに支持されるので、第二上型２１に開設された注入口２１ｃから第二キャビティ２３内へ射出される液状ゴム材料の賦形圧力によってセパレータ１０１の外周部が曲げ変形を受けるようなことがない。   Then, the second sealing material 103 is integrally formed on the other surface 101b of the outer peripheral portion of the separator 101 as shown in FIG. To do. At this time, the outer peripheral portion of the separator 101 projecting into the second cavity 23 from the sandwiched portion by the pressing surface 21 a of the second upper mold 21 and the pressing surface 22 a of the second lower mold 22 is inserted through the first seal material 102. Since it is supported by the first sealing material holding surface 22 b of the two lower molds 22, the separator 101 is formed by the forming pressure of the liquid rubber material injected into the second cavity 23 from the injection port 21 c opened in the second upper mold 21. The outer peripheral portion of the material is not subjected to bending deformation.

また、図３に示す第一金型１から取り出したセパレータ１０１と第一シール材１０２の一体成形物を、第二金型２の第二上型２１と第二下型２２の間に挿入する際に表裏反転させることで、第一金型１による第一キャビティ１３への液状ゴム材料の充填と、第二金型２による第二キャビティ２３への液状ゴム材料の充填を同じ方向から行うことができる。   3 is inserted between the second upper mold 21 and the second lower mold 22 of the second mold 2, and the integrally molded product of the separator 101 and the first sealing material 102 taken out from the first mold 1 shown in FIG. At this time, the first mold 1 is filled with the liquid rubber material into the first cavity 13 and the second mold 2 is filled with the liquid rubber material from the same direction by reversing the front and back. Can do.

しかも、第二金型２による第二シール材１０３の成形の際には、セパレータ１０１と第一シール材１０２の一体成形物が、第一シール材１０２と第一シール材保持面２２ｂとの嵌合によって第二金型２内に位置決めされるので、第一シール材１０２と第二シール材１０３に互いに位置ずれを生じてしまうのを防止することができる。   In addition, when the second sealing material 103 is molded by the second mold 2, an integrally molded product of the separator 101 and the first sealing material 102 is fitted between the first sealing material 102 and the first sealing material holding surface 22b. As a result, the first seal member 102 and the second seal member 103 can be prevented from being displaced from each other.

また上述のように、第二キャビティ２３は、セパレータ１０１の外周部及び第一シール材１０２と、第二上型２１の第二キャビティ形成面１１ｂ及び第二下型２２の第一シール材保持面２２ｂとの間に画成されるので、この第二キャビティ２３で成形される第二シール材１０３は、第一シール材１０２に接合されると共にセパレータ１０１の外周部の他面１０１ｂへ廻り込むようにこのセパレータ１０１に接合されたものとなる。このため、セパレータ１０１の外周部をゴム状弾性材料からなる第一シール材１０２及び第二シール材１０３で完全に被覆して優れた電気絶縁性を確保することができる。   As described above, the second cavity 23 includes the outer peripheral portion of the separator 101 and the first sealing material 102, the second cavity forming surface 11 b of the second upper mold 21, and the first sealing material holding surface of the second lower mold 22. 22b, the second sealing material 103 formed by the second cavity 23 is joined to the first sealing material 102 and goes around the other surface 101b of the outer peripheral portion of the separator 101. Are joined to the separator 101. For this reason, the outer peripheral part of the separator 101 can be completely covered with the first sealing material 102 and the second sealing material 103 made of a rubber-like elastic material to ensure excellent electrical insulation.

１ 第一金型
１１ 第一上型（第一分割型）
１１ｃ，２１ｃ 注入口
１１ｄ，１２ｂ 外周押さえ面
１２ 第一下型（第一分割型）
１３ 第一キャビティ
２ 第二金型
２１ 第二上型（第二分割型）
２２ 第二下型（第二分割型）
２３ 第二キャビティ
１００ セパレータ一体ガスケット（プレート一体ガスケット）
１０１ セパレータ（プレート）
１０１ａ 一面
１０１ｂ 他面
１０２ 第一シール材
１０３ 第二シール材 1 First mold 11 First upper mold (first divided mold)
11c, 21c Inlet 11d, 12b Outer peripheral pressing surface 12 First lower mold (first divided mold)
13 First cavity 2 Second mold 21 Second upper mold (second divided mold)
22 Second lower mold (second division type)
23 Second cavity 100 Separator integrated gasket (plate integrated gasket)
101 Separator (plate)
101a One surface 101b Other surface 102 First seal material 103 Second seal material

Claims (2)

一対の第一分割型からなる第一金型の前記第一分割型の間にプレートを挿入すると共にその外周部を前記第一分割型に形成された外周押さえ面の間に型締めによって挟持する工程と、一方の第一分割型と前記プレートの一面側との間に型締めによって画成された第一キャビティに成形材料を充填することにより前記プレートの一面に第一シール材を一体成形する工程と、前記プレートと第一シール材の一体成形物を前記第一金型から取り出して、一対の第二分割型からなる第二金型の前記第二分割型の間に挿入すると共に前記第二分割型の間に前記プレートを型締めによって挟持する工程と、前記第二分割型と前記プレート及び前記第一シール材との間に型締めによって画成され前記プレートの他面側へ延びる第二キャビティに成形材料を充填し、前記プレートの他面に前記第一シール材から連続した第二シール材を一体成形する工程と、を備えることを特徴とするプレート一体ガスケットの製造方法。   A plate is inserted between the first divided molds of the first mold composed of a pair of first divided molds, and the outer peripheral portion thereof is clamped between outer peripheral pressing surfaces formed on the first divided mold by clamping. A first sealing material is integrally formed on one surface of the plate by filling a molding material into a first cavity defined by clamping between one of the first divided molds and one surface of the plate. And a step of taking out an integrally molded product of the plate and the first sealing material from the first mold and inserting it between the second divided molds of a second mold consisting of a pair of second divided molds. A step of clamping the plate between the two split molds by mold clamping; and a step of being defined by mold clamping between the second split mold, the plate and the first seal material and extending to the other surface side of the plate. Fill the cavity with molding material And method for producing a plate integral gasket, characterized in that it comprises a step of integrally forming the second sealing member continuing from the first sealing member on the other surface of the plate. プレートと第一シール材の一体成形物を、第一金型から取り出して第二金型の一対の第二分割型間に挿入する際に表裏反転させることを特徴とする請求項１に記載のプレート一体ガスケットの製造方法。   The integrated molded product of the plate and the first sealing material is reversed from the front and back when being taken out from the first mold and inserted between the pair of second divided molds of the second mold. Manufacturing method of plate-integrated gasket.
JP2013082625A 2013-04-11 2013-04-11 Manufacturing method of plate-integrated gasket Active JP6013261B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013082625A JP6013261B2 (en) 2013-04-11 2013-04-11 Manufacturing method of plate-integrated gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013082625A JP6013261B2 (en) 2013-04-11 2013-04-11 Manufacturing method of plate-integrated gasket

Publications (2)

Publication Number Publication Date
JP2014206185A true JP2014206185A (en) 2014-10-30
JP6013261B2 JP6013261B2 (en) 2016-10-25

Family

ID=52119898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013082625A Active JP6013261B2 (en) 2013-04-11 2013-04-11 Manufacturing method of plate-integrated gasket

Country Status (1)

Country Link
JP (1) JP6013261B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015511055A (en) * 2012-03-06 2015-04-13 ヴィゲー・シエンタ・アーベー Analytical equipment for particle spectrometer
GB2524353A (en) * 2014-11-18 2015-09-23 Daimler Ag Separator plate assembly for a fuel cell stack, injection molding tool, fuel cell system and vehicle
JP2016197124A (en) * 2016-07-25 2016-11-24 シエンタ・オミクロン・アーベー Analyzer for particle spectrometer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11170292A (en) * 1997-08-19 1999-06-29 Universal Ventures Change of position of article between different positions in intermittently accessible space
JP2004202806A (en) * 2002-12-25 2004-07-22 Honda Motor Co Ltd Injection molding method and apparatus therefor
JP2005268077A (en) * 2004-03-19 2005-09-29 Honda Motor Co Ltd Manufacturing method of separator for fuel cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11170292A (en) * 1997-08-19 1999-06-29 Universal Ventures Change of position of article between different positions in intermittently accessible space
JP2004202806A (en) * 2002-12-25 2004-07-22 Honda Motor Co Ltd Injection molding method and apparatus therefor
JP2005268077A (en) * 2004-03-19 2005-09-29 Honda Motor Co Ltd Manufacturing method of separator for fuel cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015511055A (en) * 2012-03-06 2015-04-13 ヴィゲー・シエンタ・アーベー Analytical equipment for particle spectrometer
GB2524353A (en) * 2014-11-18 2015-09-23 Daimler Ag Separator plate assembly for a fuel cell stack, injection molding tool, fuel cell system and vehicle
JP2016197124A (en) * 2016-07-25 2016-11-24 シエンタ・オミクロン・アーベー Analyzer for particle spectrometer

Also Published As

Publication number Publication date
JP6013261B2 (en) 2016-10-25

Similar Documents

Publication Publication Date Title
WO2014069172A1 (en) Seal with integral base material and die for manufacturing same
JP6383200B2 (en) Manufacturing method of plate-integrated gasket
JP6250837B2 (en) Fuel cell separator and method for producing the same
JP2008168448A (en) Manufacturing method of seal part
EP3503273B1 (en) Production method for separator integrated gasket for fuel cells
JP5177619B2 (en) Method for manufacturing a gasket-integrated part for a fuel cell
WO2016013331A1 (en) Plate-integrated gasket manufacturing method
JP6013261B2 (en) Manufacturing method of plate-integrated gasket
JP5275070B2 (en) Fuel cell and manufacturing method thereof
JP4398763B2 (en) Manufacturing method of fuel cell separator
JP5310991B2 (en) Manufacturing method of seal structure for fuel cell
JP6151065B2 (en) Manufacturing method of plate-integrated gasket
JP2015005497A (en) Manufacturing method of plate integrated gasket
JP6329799B2 (en) Manufacturing method of laminate
KR101417496B1 (en) Seperator of fuel cell
JP2005267912A (en) Separator for fuel cell and manufacturing method of the same
JP4623264B2 (en) Manufacturing method of fuel cell component
JP5146630B2 (en) Gasket integrated with reinforcing frame and manufacturing method thereof
JP2021143676A (en) Manufacturing method of gasket
JP2006032075A (en) Component fuel cell
JP2015069839A (en) Method of manufacturing laminate
JP2021086800A (en) Manufacturing method of composite member for fuel cell
JP2021086708A (en) Manufacturing method of separator for fuel cell
JP2017116028A (en) Frame-integrated gasket and its manufacturing method
JP2010127424A (en) Manufacturing method for seal structural body

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150406

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20150406

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20150406

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150511

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160105

TRDD Decision of grant or rejection written
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160818

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160824

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160921

R150 Certificate of patent or registration of utility model

Ref document number: 6013261

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250