WO2013031360A1 - 繊維強化樹脂部材および繊維強化樹脂部材の製造方法 - Google Patents
繊維強化樹脂部材および繊維強化樹脂部材の製造方法 Download PDFInfo
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- WO2013031360A1 WO2013031360A1 PCT/JP2012/066382 JP2012066382W WO2013031360A1 WO 2013031360 A1 WO2013031360 A1 WO 2013031360A1 JP 2012066382 W JP2012066382 W JP 2012066382W WO 2013031360 A1 WO2013031360 A1 WO 2013031360A1
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- Prior art keywords
- fiber
- reinforced resin
- mounting hole
- mold
- fiber reinforced
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- 239000011347 resin Substances 0.000 title claims abstract description 106
- 239000000463 material Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims abstract description 96
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 25
- 239000004917 carbon fiber Substances 0.000 claims description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 23
- 239000003365 glass fiber Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
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- 238000003754 machining Methods 0.000 abstract 1
- 239000003677 Sheet moulding compound Substances 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 4
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- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
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- 238000000576 coating method Methods 0.000 description 2
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- 230000037303 wrinkles Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/347—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation combined with compressing after the winding of lay-ups having a non-circular cross-section, e.g. flat spiral windings
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- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/887—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced locally reinforced, e.g. by fillers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3665—Moulds for making articles of definite length, i.e. discrete articles cores or inserts, e.g. pins, mandrels, sliders
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0033—Moulds or cores; Details thereof or accessories therefor constructed for making articles provided with holes
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles
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- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
Definitions
- the present invention relates to a fiber reinforced resin member in which mounting holes for fixing a fastening member are formed in a plate material reinforced by embedding fibers in a thermosetting resin, and a manufacturing method thereof.
- drilling a mounting hole in a fiber reinforced resin member not only increases the number of processing steps and increases the cost, but also has a problem that the wear of the tool becomes severe due to hard carbon fiber or glass fiber.
- a mounting hole is formed in advance in the uncured fiber reinforced resin member, and the mounting hole is provided in the mold when the fiber reinforced resin member is set in the mold. It is conceivable to form a fiber reinforced resin member having an attachment hole by fitting the outer periphery of the pin without a gap and closing the mold in this state and performing hot press molding. However, when this method is adopted, not only the work of fitting the mounting hole of the uncured fiber reinforced resin member to the outer periphery of the mounting hole forming pin of the mold is extremely troublesome, but also the fibers around the mounting hole forming pin. There is a problem that wrinkles occur in the reinforced resin member and the quality deteriorates.
- the present invention has been made in view of the above-described circumstances, and an object thereof is to improve the workability and strength of the mounting hole of the fastening member formed on the plate material of the fiber reinforced resin member.
- a fiber reinforced resin member having an attachment hole in which a fastening member is fixed to a plate material reinforced by embedding fibers in a thermosetting resin
- An insert member in which the mounting hole is formed is connected to the inside of the opening formed in the plate material, and the insert member is formed by impregnating a fiber with a thermosetting resin and is formed into a cylindrical shape together with the plate material by a mold.
- a fiber-reinforced resin member having a first feature of being configured by pressing is proposed.
- the fiber embedded in the plate member is a carbon fiber
- the insert member is an SMC material containing glass fiber.
- a reinforced resin member is proposed.
- a reinforced resin member is proposed.
- the fiber embedded in the plate material is a carbon fiber
- the insert member is a prepreg material containing carbon fiber.
- a reinforced resin member is proposed.
- a fifth feature is that the contact surface with the fastening member is covered with a fiber reinforced resin sheet containing glass fibers.
- a fiber reinforced resin member is proposed.
- a method for producing a fiber reinforced resin member having a mounting hole in which a fastening member is fixed to a plate material reinforced by embedding fibers in a thermosetting resin, and having a plurality of openings And a step of surrounding the outer periphery of the mounting hole forming pin with the opening, and an insert member formed into a tubular shape by impregnating a fiber with a thermosetting resin.
- a method for producing a featured fiber reinforced resin member is proposed.
- the fiber reinforced resin member is a fastening member fixed in the mounting hole, in which the mounting hole is formed in the plate material reinforced by embedding the fiber in the thermosetting resin.
- the other member is fixed to the fiber reinforced resin member, or the fiber reinforced resin member is fixed to the other member.
- An insert member in which a mounting hole is formed is connected to the inside of the opening formed in the plate material. The insert member is formed by impregnating a fiber with a thermosetting resin into a cylindrical shape and hot with a mold together with the plate material.
- the insert member is an SMC material containing glass fiber
- stress concentration around the mounting hole can be avoided by the glass fiber that is relatively easy to stretch.
- the fibers embedded in the plate material are carbon fibers, there is a possibility that when the fastening member fixed in the mounting hole is electrically connected to the plate material, there is a possibility that electrolytic corrosion occurs in the fastening member, but the insert member that contacts the fastening member Since the glass fiber contained in is a defective conductor, the fastening member can be prevented from being electrically connected to the plate member via the insert member, and the occurrence of electrolytic corrosion can be suppressed.
- the insert member is an SMC material containing carbon fiber
- the strength around the mounting hole can be increased by the carbon fiber having a relatively high tensile strength.
- the insert member is a prepreg containing carbon fiber
- the strength around the mounting hole can be increased by the carbon fiber having relatively high tensile strength.
- the contact surface with the fastening member is covered with the fiber reinforced resin sheet containing glass fiber, the electrolytic corrosion of the fastening member is more reliably suppressed by the glass fiber which is a defective conductor. be able to.
- the fiber reinforced resin member is a plate in which fibers are embedded and reinforced by embedding fibers inside a thermosetting resin, and fastening fixed to the mounting hole.
- the other member is fixed to the fiber reinforced resin member by the member, or the fiber reinforced resin member is fixed to the other member.
- the fiber reinforced resin member is manufactured by laminating a plurality of prepregs having openings inside a mold having attachment hole forming pins, and surrounding the outer periphery of the attachment hole forming pins with the openings, and thermosetting resin on the fibers.
- FIG. 1 is a cross-sectional view of the fiber reinforced resin member in use.
- FIG. 2 is an exploded view corresponding to FIG.
- FIG. 3 is a diagram showing a manufacturing process of the fiber reinforced resin member.
- FIG. 4 is a cross-sectional view of the fiber reinforced resin member.
- FIG. 5 is a perspective view of the insert member before molding. (Third embodiment)
- a member such as a subframe of an automobile is formed as a fiber reinforced resin member 11.
- the fiber reinforced resin member 11 is a sheet material 12, an insert member 13 disposed inside the opening 12 a of the sheet material 12, and two sheets laminated so as to straddle the upper and lower surfaces of the sheet material 12 from the upper and lower surfaces of the insert member 13.
- the plate 12 is configured by laminating a plurality of prepregs 15.
- the prepreg 15 is made of a semi-cured thermosetting resin 17 (epoxy resin or polyester resin) on a woven fabric or UD (sheet in which fibers are aligned in one direction) made of fibers 16 such as carbon fiber, glass fiber, and aramid fiber. It is impregnated and does not have a sticky surface, but has flexibility to adapt to the shape of the mold.
- a plurality of prepregs 15 are stacked and inserted into a mold and heated to about 130 ° C. while applying pressure, for example, the thermosetting resin 17 is cured and an autoclave product such as a dry carbon product is obtained. .
- the insert member 13 is made of SMC (Sheet Molding Compound). SMC is obtained by impregnating a glass fiber sheet with an unsaturated polyester resin or vinyl ester resin, which is a thermosetting resin, and a filler such as calcium carbonate or other additives. When the insert member 13 formed in the shape of a thin plate having flexibility is set in the mold and pressed and heated, the unsaturated polyester resin is cured, so that a fiber-reinforced resin product having an arbitrary shape can be formed. it can.
- the insert member 13 before being inserted into the mold is formed in a cylindrical shape by winding, for example, a strip-shaped SMC.
- the mold 18 for molding the fiber reinforced resin member 11 is composed of a lower mold 19 and an upper mold 20, and the cavity of the lower mold 19 contains the fiber reinforced resin member 11.
- Two mounting hole forming pins 21, 21 for forming the mounting holes 13 a, 13 a are implanted in the insert member 13.
- the number of mounting hole forming pins 21 and 21 is not limited to two, and may be one or three or more.
- the openings 14a and 14a of the annular fiber reinforced resin sheets 14 and 14 are fitted to the outer peripheries of the two mounting hole forming pins 21 and 21 of the lower mold 19 of the mold 18, respectively.
- a plurality of prepregs 15 that are cut in a predetermined shape in advance are stacked in the cavity of the lower mold 19.
- Each prepreg 15 is formed with two openings 15a and 15a in advance, and the prepreg 15 is arranged so that the openings 15a and 15a are loosely fitted to the outer periphery of the two mounting hole forming pins 21 and 21.
- the diameters of the openings 15a and 15a of the prepreg 15 are sufficiently larger than the diameters of the mounting hole forming pins 21 and 21, so that the operation of fitting the openings 15a and 15a of the prepreg 15 to the outer periphery of the mounting hole forming pins 21 and 21 is performed. Easy. Further, it is not necessary to accurately position the openings 15a and 15a of the prepreg 15 with respect to the mounting hole forming pins 21 and 21, and there is no problem even if a step is generated at the edge of the openings 15a of the plurality of prepregs 15.
- the openings 15a of the plurality of prepregs 15 constitute openings 12a and 12a of the plate material 12.
- each insert member 13 is sandwiched between the upper and lower fiber reinforced resin sheets 14 and 14 and is plastically deformed.
- the insert member 13 is pushed outward in the radial direction and reaches the inside of the opening 12a of the plate member 12 without a gap.
- the prepregs 15 and the insert members 13 and 13 are thermoset and integrated, and fiber reinforced resin sheets 14 are formed on the upper and lower surfaces thereof. Are joined together.
- the fiber reinforced resin member 11 molded in this way is taken out from a mold 18 that is opened by separating the upper mold 20 from the lower mold 19.
- the fastening member 22 is attached to the mounting hole 13a of each insert member 13 of the fiber reinforced resin member 11 as shown in FIG.
- the fastening member 22 includes a first member 23 and a second member 24.
- the first member 23 includes a shaft portion 23b on which an inner peripheral female screw 23a is formed, and a circular flange 23c extending in a radial direction from one end of the shaft portion 23b.
- the second member 24 includes a cylindrical shaft portion 24a and a circular flange 24b extending in the radial direction from one end of the shaft portion 24a.
- the suspension member 25 is firmly fixed to the fiber reinforced resin member 11 constituting the subframe of the automobile by screwing the bolt 26 inserted into the bolt hole 25a of the suspension member 25 into the female screw 23a of the first member 23. be able to.
- the mounting holes 13a and 13a of the fiber reinforced resin member 11 are formed by the insert members 13 and 13 inserted together with the prepregs 15 as the material of the plate material 12 in the mold 18, so that the fiber reinforced resin member No need to drill 11 to form the mounting holes 13a, 13a, and the number of processing steps can be reduced.
- the diameter of the openings 15a of the prepregs 15 is sufficiently larger than the diameters of the mounting hole forming pins 21, 21, so that the setting work of the prepregs 15 is facilitated.
- the openings 15a ... do not interfere with the mounting hole forming pins 21, 21, and the prepregs 15 ... do not become wrinkles.
- the openings 15a of the prepregs 15 are uneven (that is, the openings 12a of the plate 12), the openings 15a are filled with the insert members 13 that are compressed in the mold 18 and spread in the radial direction. Therefore, rather, it can contribute to firmly integrating the plate material 12 and the insert member 13.
- the plate member 12 of the fiber reinforced resin member 11 is a conductive member containing carbon fiber.
- the metal fastening member 22 is in direct contact therewith, there is a possibility that electrolytic corrosion occurs on the contact surface of the fastening member 22.
- the flange 23c of the fastening member 22 is used. , 24b can be prevented from coming into contact with the conductive plate 12, and the occurrence of electrolytic corrosion can be prevented.
- non-conductive glass fiber is used for SMC (Sheet Molding Compound) of the insert member 13
- SMC Sheet Molding Compound
- the occurrence of electrolytic corrosion due to contact between the insert member 13 and the fastening member 22 can be prevented more reliably.
- the glass fiber is excellent in stretchability compared with the carbon fiber, the stress concentrated around the mounting hole 13a when a load is applied to the fastening member 22 can be relieved.
- glass fiber is used for the SMC of the insert member 13, but in the second embodiment, carbon fiber is used for the SMC instead of glass fiber. Since the carbon fiber has a higher tensile strength than the glass fiber, the strength around the mounting hole 13a can be further increased. In addition, since carbon fiber is conductive, it is easy for electric corrosion to occur in the fastening member 22, but it can be sufficiently dealt with by covering the insert member 13 with the fiber reinforced resin sheets 14 and 14. In this case, it is necessary to cover the peripheral wall surface of the mounting hole 13a with a fiber reinforced resin sheet of glass fiber.
- this prepreg is a semi-cured epoxy resin 13c formed in a band shape, in which carbon fibers 13b... Aligned in one direction are embedded, and an insert member that is wound in a cylindrical shape. 13 is set inside the mold 18 and hot press molded together with the prepregs 15 of the plate 12.
- the carpon fibers 13b of the insert member 13 are wound so as to surround the mounting hole 13a.
- the strength of the mounting hole 13a is greatly improved.
- the fiber reinforced resin member 11 of the present invention can be applied to any use other than the subframe of an automobile.
- the mounting hole 13a can be used not only when fixing the other member to the fiber reinforced resin member 11, but also when fixing the fiber reinforced resin member 11 to the other member.
- the fiber reinforced resin sheet 14 is set in the mold 18 and laminated on the fiber reinforced resin member 11. However, the fiber reinforced resin sheet 14 is laminated on the fiber reinforced resin member 11 taken out from the mold 18. You may do it.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
12a 開口
13 インサート部材
13a 取付孔
14 繊維強化樹脂シート
15 プリプレグ
15a 開口
16 繊維
17 熱硬化性樹脂
18 金型
21 取付孔成形ピン
22 締結部材
[第1、第2の実施の形態]
図1に示すように、例えば自動車のサブフレームのような部材が繊維強化樹脂部材11として成形される。繊維強化樹脂部材11は、板材12と、板材12の開口12aの内部に配置されたインサート部材13と、インサート部材13の上下両面から板材12の上下両面に跨がるように積層された2枚の円環状の繊維強化樹脂シート14,14とで構成される。板材12は、複数枚のプリプレグ15…を積層して構成される。
[第3の実施の形態]
第1、第2の実施の形態では、インサート部材13にSMCを用いているが、第3の実施の形態では、インサート部材13にプリプレグを用いている。このプリプレグは、図5に示すように、帯状に形成した半硬化のエポキシ樹脂13cの内部に一方向に引き揃えたカーボンファイバー13b…を埋設したものであり、それを円筒状に巻き付けたインサート部材13を金型18の内部にセットし、板材12のプリプレグ15…と共にホットプレス成形する。
Claims (6)
- 熱硬化性樹脂(17)の内部に繊維(16)を埋設して強化した板材(12)に締結部材(22)が固定される取付孔(13a)を形成した繊維強化樹脂部材であって、
前記板材(12)に形成した開口(12a)の内部に前記取付孔(13a)が形成されたインサート部材(13)が接続され、前記インサート部材(13)は、繊維に熱硬化性樹脂を含浸させて筒状に形成したものを前記板材(12)と共に金型(18)によりホットプレスして構成されることを特徴とする繊維強化樹脂部材。 - 前記板材(12)に埋設される繊維(16)はカーボンファイバーであり、前記インサート部材(13)はグラスファイバーを含むSMC材料であることを特徴とする、請求項1に記載の繊維強化樹脂部材。
- 前記板材(12)に埋設される繊維(16)はカーボンファイバーであり、前記インサート部材(13)はカーボンファイバーを含むSMC材料であることを特徴とする、請求項1に記載の繊維強化樹脂部材。
- 前記板材(12)に埋設される繊維(16)はカーボンファイバーであり、前記インサート部材(13)はカーボンファイバーを含むプリプレグ材料であることを特徴とする、請求項1に記載の繊維強化樹脂部材。
- 前記締結部材(22)との接触面をグラスファイバーを含む繊維強化樹脂シート(14)で覆ったことを特徴とする、請求項1~請求項4の何れか1項に記載の繊維強化樹脂部材。
- 熱硬化性樹脂(17)の内部に繊維(16)を埋設して強化した板材(12)に締結部材(22)が固定される取付孔(13a)を形成した繊維強化樹脂部材の製造方法であって、
開口(15a)を有する複数枚のプリプレグ(15)を取付孔成形ピン(21)を有する金型(18)の内部に積層し、前記開口(15a)で前記孔成形ピン(21)の外周を囲む工程と、
繊維に熱硬化性樹脂を含浸させて筒状に形成したインサート部材(13)を前記開口(15a)および前記取付孔成形ピン(21)間に嵌合する工程と、
前記金型(18)を型締めして加熱することで前記プリプレグ(15)および前記インサート部材(13)をホットプレスして硬化させる工程と、
を含むことを特徴とする繊維強化樹脂部材の製造方法。
Priority Applications (3)
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US14/240,207 US20140212624A1 (en) | 2011-09-04 | 2012-06-27 | Fiber-reinforced resin member and method for manufacturing fiber-reinforced resin member |
DE112012003671.9T DE112012003671T5 (de) | 2011-09-04 | 2012-06-27 | Faserverstärktes Kunststoffelement und Verfahren zur Herstellung eines faserverstärkten Kunststoffelements |
JP2013531142A JP5631498B2 (ja) | 2011-09-04 | 2012-06-27 | 繊維強化樹脂部材および繊維強化樹脂部材の製造方法 |
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WO2013031360A1 true WO2013031360A1 (ja) | 2013-03-07 |
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US (1) | US20140212624A1 (ja) |
JP (1) | JP5631498B2 (ja) |
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Also Published As
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JPWO2013031360A1 (ja) | 2015-03-23 |
JP5631498B2 (ja) | 2014-11-26 |
DE112012003671T5 (de) | 2014-07-03 |
US20140212624A1 (en) | 2014-07-31 |
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