WO2017110730A1 - ガスケット並びにその製造方法及び取り扱い方法 - Google Patents
ガスケット並びにその製造方法及び取り扱い方法 Download PDFInfo
- Publication number
- WO2017110730A1 WO2017110730A1 PCT/JP2016/087748 JP2016087748W WO2017110730A1 WO 2017110730 A1 WO2017110730 A1 WO 2017110730A1 JP 2016087748 W JP2016087748 W JP 2016087748W WO 2017110730 A1 WO2017110730 A1 WO 2017110730A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gasket
- carrier film
- main body
- mold
- tab
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000005060 rubber Substances 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 8
- 239000012778 molding material Substances 0.000 claims description 7
- 239000011797 cavity material Substances 0.000 description 18
- 230000002093 peripheral effect Effects 0.000 description 15
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14262—Clamping or tensioning means for the insert
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
- F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14213—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure deforming by gas or fluid pressure in the mould cavity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/944—Elastomer or plastic
Definitions
- the present invention relates to a gasket related to a sealing technique, and more particularly to a rubber-only type gasket main body and a carrier film-attached gasket comprising a combination of carrier films for holding the gasket main body, and a method for manufacturing and handling the same.
- the gasket of the present invention is used, for example, as a fuel cell gasket or as a general gasket for other uses.
- Gaskets for fuel cells include rubber-only gaskets made of a single rubber-like elastic (rubber) gasket, a separator-integrated gasket in which a rubber-like elastic gasket is integrally molded with a separator, and a rubber-like elastic gasket.
- rubber-only gaskets made of a single rubber-like elastic (rubber) gasket
- separator-integrated gasket in which a rubber-like elastic gasket is integrally molded with a separator
- a rubber-like elastic gasket There are various types of gaskets such as a GDL integrated gasket formed integrally with GDL (gas diffusion layer).
- the rubber-only type gasket is configured as shown in FIG. 8, for example.
- the gasket 11 as a whole has a flat shape (a flat plate shape), and an outer peripheral seal portion 12 for sealing around the reaction surface of the fuel cell over the entire circumference is provided in a flat rectangular frame shape. Further, in order to seal the periphery of each manifold portion, manifold seal portions 13 are integrally provided at both ends in the longitudinal direction of the outer peripheral seal portion 12.
- the cross-sectional shape of the gasket 11 is circular as shown in FIG.
- JP 2014-60133 A (refer to gasket 3 in FIG. 1 and the like)
- this fuel cell gasket 11 is generally set to have a planar outer shape of about 400 mm ⁇ 300 mm, while its cross-sectional shape (wire diameter) is set to be as small as about 1 mm to several mm. Accordingly, the gasket 11 alone is likely to be twisted during conveyance or stacking, and its handling workability (handling property) is not good.
- the applicant of the present application previously has a carrier-only gasket comprising a combination of a rubber-only type gasket main body 31 and a resin carrier film 41 that holds the gasket main body 31 in a non-adhered state. 21.
- this gasket 21 with a carrier film the rubber-only type gasket main body 31 is held by the carrier film 41 having a higher strength, so that twisting is unlikely to occur, thereby improving handling workability. Can be made.
- the gasket main body 31 has a planar shape (flat plate shape) as a whole like the gasket 11 of FIG. 8, and an outer peripheral seal portion 32 that seals around the reaction surface of the fuel cell over the entire circumference is a frame having a flat rectangular shape. It is provided in the shape. Further, in order to seal around each manifold portion, manifold seal portions 33 are integrally provided at both ends in the longitudinal direction of the outer peripheral seal portion 32.
- the cross-sectional shape of the gasket main body 31 is circular as shown in FIG.
- the carrier film 41 is made of a resin film having a flat rectangular shape that is slightly larger than the gasket body 31, and a gasket holding portion 42 having a three-dimensional shape for holding the gasket body 31 is formed on the plane. Yes.
- This gasket 21 with a carrier film is manufactured as follows. For the production, a mold for injection molding the rubber-only type gasket main body 31 is used.
- a planar carrier film 41 cut into a planar shape of a predetermined size is prepared, and the carrier film 41 is sandwiched between parting portions 54 of a mold 51 as shown in FIG. In this state, the mold 51 is clamped.
- the mold 51 is composed of a combination of an upper mold (one split mold) 52 and a lower mold (the other split mold) 53, and the cavity portions 55 respectively correspond to the parting portions 54 of both molds 52 and 53. Is provided. Since the entire surface of the carrier film 41 is initially flat, the carrier film 41 is in a state of crossing the cavity portion 55.
- the gasket body 31 is formed by filling the cavity portion 55 with a molding material for forming the gasket body 31 and heating.
- the carrier film 41 is partially pressed on the inner surface of the cavity portion 55 of the lower mold 53 by the molding material filling pressure, and deformed along the inner surface of the cavity portion 55. (Plastic deformation), thereby forming a gasket holding portion 42 having a three-dimensional shape.
- the mold is opened, and the gasket main body 31 and the carrier film 41 are simultaneously taken out from the mold 51 as shown in FIG.
- the taken-out gasket main body 31 and carrier film 41 are in a combined state in which the gasket main body 31 is held by the carrier film 41, and products are transported and stored in this combined state.
- the carrier film 41 is removed from the gasket body 31 and only the gasket body 31 is assembled.
- the gasket body 31 is set on the suction portion 62 of the vacuuming device 61 using the base as the base, and vacuuming (arrow S) is performed.
- the carrier film 41 is removed from the gasket body 31 in this state (arrow M).
- the carrier film 41 is set in the suction part 62 of the vacuuming device 61 using the base, and vacuuming (arrow S) is performed to suck the carrier film 41 ( In this state, the carrier film 41 is relatively removed from the gasket main body 31 (arrow M).
- the carrier film 41 since the carrier film 41 is not bonded to the gasket body 31, it should be easily removable. However, if the gasket main body 31 has adhesiveness on the surface and adheres to the carrier film 41, the carrier film 41 must be strongly peeled off from the gasket main body 31, and it becomes difficult to remove.
- the present invention is directed to removing a carrier film from a gasket body in a gasket with a carrier film that is a combination of a rubber-only type gasket body and a carrier film that holds the gasket body.
- An object of the present invention is to provide a gasket capable of easily removing a carrier film even if it adheres to the substrate, and a method for producing and handling the gasket.
- the gasket of the present invention is a gasket with a carrier film comprising a combination of a rubber-only type gasket main body and a carrier film for holding the gasket main body, and the plane area of the gasket main body is enlarged.
- the tab to be provided is provided integrally with the gasket body.
- the carrier film can be removed from the gasket main body using this tab.
- the carrier film may be removed from the gasket body while the gasket body is fixed to the base with the tab, or the carrier film may be removed from the gasket body with the tab while the carrier film is fixed to the base. It is possible.
- the gasket body is used as, for example, a gasket for a fuel cell incorporated in a fuel cell stack, the gasket body has a thin wire diameter as described above, so that it is difficult to fix by vacuuming or grip by a chucking jig. Therefore, the detaching operation can be facilitated by performing evacuation or chucking on the tab together with the gasket body or together with the gasket body.
- the carrier film may be provided with a gasket holding portion having a three-dimensional shape deformed along the outer shape of the gasket main body at a portion overlapping the gasket main body on a plane.
- the gasket body is used, for example, as a gasket for a fuel cell incorporated in a fuel cell stack.
- the gasket manufacturing method includes the steps of clamping the mold with a flat carrier film sandwiched between the parting part of the mold for molding the gasket body, and molding the gasket body with the mold.
- the process of forming a three-dimensional gasket holding part by deforming a part of the carrier film on the plane with the material filling pressure along the inner surface of the mold cavity, and after the gasket body is molded, after opening the mold, the gasket body And a step of taking out the carrier film from the mold at the same time, and sequentially performing.
- a mold having a tab forming cavity for forming a tab together with a cavity for forming the gasket main body is used.
- the method of handling the gasket that is, the method of removing the carrier film from the gasket main body
- the carrier film when removing the carrier film from the gasket body, the carrier film can be easily removed even if the gasket body adheres to the carrier film.
- the gasket 21 is configured by a combination of a rubber-only type gasket main body 31 and a carrier film 41 made of a resin film that holds the gasket main body 31.
- a carrier film 41 made of a resin film that holds the gasket main body 31.
- the gasket body 31 and the carrier film 41 are not bonded to each other, the gasket body 31 may stick to the carrier film 41 due to the material characteristics of the gasket body 31 and the like.
- the gasket body 31 is used as a fuel cell gasket.
- the carrier film 41 is also called a carrier sheet or a gasket holding member.
- the gasket body 31 is formed in a flat shape (flat plate shape) as a whole by a predetermined rubber-like elastic body (for example, VMQ, PIB, EPDM, FKM, etc.), and seals around the reaction surface of the fuel cell over the entire circumference.
- An outer peripheral seal portion 32 is provided in a planar rectangular frame shape. Further, in order to seal around each manifold portion, manifold seal portions (inner seal portions) 33 are integrally provided at both ends in the longitudinal direction of the outer peripheral seal portion 32.
- the cross-sectional shape of the gasket main body 31 is circular as shown in FIG. 1B, but may be other cross-sectional shapes.
- a tab 34 for enlarging the plane area of the gasket body 31 is formed integrally with the gasket body 31, and a plurality of tabs 34 are provided around the outer periphery side (outer peripheral side) of the gasket body 31 (outer peripheral seal portion 32). 14 places are provided in the figure.
- the tab 34 has a planar rectangular shape, and is provided in the middle of the thickness direction of the gasket body 31 (outer peripheral seal portion 32) (center to substantially center).
- the carrier film 41 is formed into a flat shape (flat plate shape) with a predetermined resin film, and is formed into a flat rectangular shape that is slightly larger than the gasket main body 31.
- a polypropylene film having a thickness of 0.2 mm is used as the resin film, and this is cut into a planar shape having the above-described size.
- general resin materials such as polyethylene and polystyrene can be used as the resin film.
- a film made of engineering plastic such as polyamide (PA) or polybutylene terephthalate (PBT). According to this kind of engineering plastic film, the gasket main body 31 and the carrier film 41 adhere to each other. It becomes difficult to peel off even if it adheres.
- the thickness of the film is preferably about 0.1 mm to 0.3 mm, although it depends on the wire diameter and cross-sectional shape of the gasket body 31.
- a part (three-dimensional part) 42 is provided, and a part or all (a part in the figure) of the gasket main body 31 is accommodated in the three-dimensional gasket holding part 42.
- the tab 34 is not housed in the three-dimensional gasket holding portion 42 and is in a state of being overlapped with the flat portion of the carrier film 41 in the thickness direction.
- the gasket main body 31 since the rubber-only type gasket main body 31 is held by the carrier film 41 made of a resin film, the gasket main body 31 is not easily twisted when the gasket 21 is transported, and is easily transported. Accordingly, the handling workability of the gasket 21 can be improved.
- the carrier film 41 is provided with a three-dimensional gasket holding portion 42, and a part or all of the gasket main body 31 is accommodated in the gasket holding portion 42, so that the gasket main body 31 is flat with respect to the carrier film 41. Positioned above. Therefore, the gasket main body 31 is not displaced with respect to the carrier film 41 when the gasket 21 is conveyed, so that the gasket main body 31 can be firmly held by the carrier film 41.
- a planar carrier film 41 cut into a planar shape of a predetermined size is prepared, and the carrier film 41 is sandwiched between parting portions 54 of a mold 51 as shown in FIG. In this state, the mold 51 is clamped.
- the mold 51 is a combination of an upper mold (one split mold) 52 and a lower mold (the other split mold) 53, and cavity portions for molding the gasket body 31 on the parting portions 54 of both molds 52 and 53, respectively.
- (Gasket forming cavity portion) 55 is provided, and a tab forming cavity portion 55a for forming the tab 34 on the parting portion 54 of the upper mold 52 is provided as a part thereof. Since the entire surface of the carrier film 41 is initially flat, the carrier film 41 is in a state of crossing the cavity portion 55.
- the gasket body 31 and the tab 34 are integrally formed by filling the cavity portion 55 with a molding material for forming the gasket body 31 and the tab 34 and heating.
- the carrier film 41 is partially pressed on the inner surface of the cavity portion 55 of the lower mold 53 by the molding material filling pressure, and deformed along the inner surface of the cavity portion 55. (Plastic deformation), and thereby, a three-dimensional gasket holding portion 42 is formed.
- the mold is opened, and the gasket body 31 and the carrier film 41 are simultaneously taken out from the mold 51 as shown in FIG.
- the taken-out gasket main body 31 and carrier film 41 are in a combined state in which the gasket main body 31 is held by the carrier film 41, and products are transported and stored in this combined state.
- the gasket main body 31 held by the carrier film 41 is less likely to be twisted, so that the handling workability can be improved as compared with the case where the gasket main body 31 is handled alone.
- the gasket main body 31 and the carrier film 41 are not bonded to each other, but the gasket main body 31 has adhesiveness on the surface due to the characteristics of the material of the gasket main body 31 and the convenience of molding by the mold 51. As a result, the gasket body 31 may stick to the carrier film 41. Therefore, in this embodiment, the tab 34 is integrally provided on the gasket body 31 as described above so that even if the gasket body 31 adheres to the carrier film 41 as described above, the subsequent handling is easy.
- the method for handling the gasket 21, that is, the method for removing the carrier film 41 from the gasket body 31 is as follows.
- the gasket main body 31 and the tab 34 are respectively set on the suction portion 62 of the vacuuming device 61 as a base, and vacuuming (arrow S) is performed to suck (fix) the gasket main body 31.
- the carrier film 41 is chucked (gripped) using a chucking jig (not shown) or the like and lifted up from the gasket main body 31 while being adsorbed in this way. Remove the carrier film 41 (arrow M).
- the carrier film 41 is set on the suction part 62 of the vacuuming device 61 using the base, and the carrier film 41 is sucked (fixed) by vacuuming (arrow S).
- the tab 34 is chucked (gripped) and lifted by using the chucking jig 71 or the like in the state of being adsorbed in this manner, and thereby the carrier film 41 is lifted from the gasket body 31. Are removed relative to each other (arrow M).
- the tab 34 can be set to have a width and a flat area larger than a width (wire diameter) and a flat area (a flat area corresponding to the tab length) of the gasket body 31, the tab 34 is attracted to the vacuuming device 61 (FIG. 3). ), The adsorption area can be enlarged and the adsorption force can be enlarged.
- the chucking area is enlarged and the tensile force by the chucking jig is increased. Can do. Therefore, by performing the removal operation using the tab 34 in this way, the carrier film 41 can be easily removed even if the gasket body 31 is adhered to the carrier film 41.
- the suction by the vacuuming device 61 may be performed only on the tab 34.
- the gasket body 31 has a rectangular cross section, and the seal lip 35 is integrally formed on the plane. .
- the planar shape, size, number, and arrangement of the tabs 34 can be considered for the planar shape, size, number, and arrangement of the tabs 34.
- a plurality of tabs 34 are provided on the outer peripheral side and inner peripheral side of the gasket body 31 (outer peripheral seal portion 32).
- the tabs 34 are provided in pairs. In this case, the outer peripheral tab 34 and the inner peripheral tab 34 are attracted to the vacuuming device 61 (FIG. 6) or chucked with the chucking jig 71 (FIG. 7).
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Gasket Seals (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
図1に示すように当該実施例に係るガスケット21は、ラバーオンリータイプのガスケット本体31と、このガスケット本体31を保持する樹脂フィルムよりなるキャリアフィルム41との組み合わせにより構成されている。ガスケット本体31およびキャリアフィルム41は互いに非接着とされているが、ガスケット本体31の材質上の特性などによってガスケット本体31がキャリアフィルム41に対し粘着することがある。ガスケット本体31は燃料電池用ガスケットとして用いられる。キャリアフィルム41はキャリアシートまたはガスケット保持部材とも称する。
ガスケット本体31の断面形状については、様々な形状が考えられ、例えば図5に示す第2実施例では、ガスケット本体31が断面長方形とされ、その平面上にシールリップ35が一体に成形されている。
31 ガスケット本体
32 外周シール部
33 マニホールド用シール部
34 タブ
35 シールリップ
41 キャリアフィルム
42 ガスケット保持部
51 金型
52 上型
53 下型
54 パーティング部
55,55a キャビティ部
61 真空引き装置
62 吸着部
71 チャッキング治具
Claims (6)
- ラバーオンリータイプのガスケット本体と、前記ガスケット本体を保持するキャリアフィルムとの組み合わせよりなるキャリアフィルム付きガスケットであって、前記ガスケット本体の平面積を拡大するタブを前記ガスケット本体に一体に設けたことを特徴とするガスケット。
- 請求項1記載のガスケットにおいて、
前記キャリアフィルムにおける前記ガスケット本体と平面上重なる部位に、前記ガスケット本体の外形形状に沿って変形した立体形状よりなるガスケット保持部を設けたことを特徴とするガスケット。 - 請求項1または2記載のガスケットにおいて、
前記ガスケット本体は、燃料電池スタックに組み込まれる燃料電池用ガスケットとして用いられることを特徴とするガスケット。 - 請求項1、2または3記載のガスケットを製造する方法であって、
前記ガスケット本体を成形する金型のパーティング部に平面状の前記キャリアフィルムを挟み込んだ状態で前記金型を型締めする工程と、
前記金型で前記ガスケット本体を成形し、このとき成形材料充填圧力で前記キャリアフィルムの平面上一部を金型キャビティ内面に沿って変形させることにより前記立体形状よりなるガスケット保持部を成形する工程と、
前記ガスケット本体の成形後、型開きしてから、前記ガスケット本体および前記キャリアフィルムを同時に前記金型から取り出す工程と、を順次実施し、
前記金型は、前記タブを成形するためのタブ成形用キャビティ部を有することを特徴とするガスケットの製造方法。 - 請求項1、2または3記載のガスケットを取り扱う方法であって、
前記ガスケット本体から前記キャリアフィルムを取り外す際に、前記タブをもって前記ガスケット本体をベースに固定した状態で、前記ガスケット本体から前記キャリアフィルムを取り外すことを特徴とするガスケットの取り扱い方法。 - 請求項1、2または3記載のガスケットを取り扱う方法であって、
前記ガスケット本体から前記キャリアフィルムを取り外す際に、前記キャリアフィルムをベースに固定した状態で、前記タブをもって前記ガスケット本体から前記キャリアフィルムを取り外すことを特徴とするガスケットの取り扱い方法。
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CA3007326A CA3007326C (en) | 2015-12-24 | 2016-12-19 | Gasket, method for producing same, and method for handling same |
US16/065,438 US10960585B2 (en) | 2015-12-24 | 2016-12-19 | Gasket, method for producing same, and method for handling same |
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JP6629066B2 (ja) | 2015-04-09 | 2020-01-15 | Nok株式会社 | ガスケット及びその製造方法 |
KR102493194B1 (ko) | 2015-04-24 | 2023-01-27 | 엔오케이 가부시키가이샤 | 개스킷 성형품 및 그 제조방법 |
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EP3306148B1 (en) | 2015-06-04 | 2020-01-01 | NOK Corporation | Gasket and method for producing same |
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JPS54159552A (en) * | 1978-06-06 | 1979-12-17 | Toyo Cloth Co | Gasket and its manufacturing method |
JP2005003181A (ja) * | 2003-06-16 | 2005-01-06 | Nok Corp | ガスケット |
JP2010127424A (ja) * | 2008-11-28 | 2010-06-10 | Nok Corp | シール構造体の製造方法 |
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US20190001540A1 (en) | 2019-01-03 |
EP3396215A1 (en) | 2018-10-31 |
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