WO2017149818A1 - 構造体、および構造体の製造方法 - Google Patents
構造体、および構造体の製造方法 Download PDFInfo
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- WO2017149818A1 WO2017149818A1 PCT/JP2016/078931 JP2016078931W WO2017149818A1 WO 2017149818 A1 WO2017149818 A1 WO 2017149818A1 JP 2016078931 W JP2016078931 W JP 2016078931W WO 2017149818 A1 WO2017149818 A1 WO 2017149818A1
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- WIPO (PCT)
- Prior art keywords
- plasma
- reinforcing
- reinforcing member
- reinforcing fiber
- region
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
- B29C53/602—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/08—Conditioning or physical treatment of the material to be shaped by using wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
- B29L2031/7156—Pressure vessels
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/012—Reinforcing means on or in the wall, e.g. ribs
Definitions
- the present invention relates to a structure and a method for manufacturing the structure.
- reinforcing members in which reinforcing fibers are impregnated with resin have attracted attention as automobile parts.
- a reinforcing member is wound around the outer periphery of a high-pressure gas storage container that stores hydrogen gas used as fuel for automobiles.
- reinforcing members are used for automobile panels.
- the reinforcing fiber since the reinforcing fiber has low adhesion to the resin, it is necessary to improve the adhesion of the reinforcing fiber to the resin.
- the surface of the aromatic polyamide fiber is modified and bonded by irradiating the aromatic polyamide fiber with plasma from a direction perpendicular to the fiber arrangement surface.
- a method for improving adhesion has been disclosed to improve the properties.
- the above-mentioned high-pressure gas storage container and automobile panel have different stresses depending on the part.
- the design is made so that damage does not occur at the place where the maximum stress is applied, there are places that are excessively thick against the stress when viewed as the whole product, and the weight of the whole product Will increase.
- the present invention has been made to solve the above-described problems, and provides a structure and a method for manufacturing the structure that can reduce the weight of the entire product by reducing the thickness while maintaining an appropriate strength.
- the purpose is to provide.
- the structure according to the present invention that achieves the above object is a structure including a reinforcing member made of a reinforcing fiber impregnated with a resin.
- the reinforcing member is formed by irradiating the reinforcing fiber with plasma, and the reinforcing fiber is irradiated with a smaller amount of the plasma than the first region.
- the structure is provided with the reinforcing member by positioning the first region at a position where the strength is required to be higher than that of the second region.
- the structure manufacturing method according to the present invention for achieving the above object is a method for manufacturing a structure including a reinforcing member made of a reinforcing fiber impregnated with a resin.
- the reinforcing fiber is irradiated with plasma to impregnate the resin, thereby forming a first region in the reinforcing member.
- the reinforcing fiber is irradiated with the plasma in a smaller amount than the first region or impregnated with the resin without irradiating the plasma, thereby forming the second region in the reinforcing member.
- the first region is positioned at a place where the strength is required to be higher than that of the second region.
- 10 is a graph showing a plasma dose distribution according to Modification Example 1; 10 is a graph showing a plasma dose distribution according to Modification Example 2; It is a figure for demonstrating the effect of the high pressure gas storage container which concerns on the modification 2. It is a figure for demonstrating the effect of the high pressure gas storage container which concerns on the modification 2. It is a figure for demonstrating the effect of the high pressure gas storage container which concerns on the modification 2. It is a schematic diagram which shows the panel of a motor vehicle.
- FIG. 1 is a view showing a high-pressure gas storage container 1 according to this embodiment.
- FIG. 2 is a diagram illustrating a state before the reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- FIG. 3 is a diagram illustrating a state after the reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- FIG. 4 is a cross-sectional view showing a part of the reinforcing member 20 made of the reinforcing fiber 21 impregnated with the resin 22.
- FIG. 5 is a graph showing the dose distribution of plasma P.
- FIG. 5 is a graph showing the dose distribution of plasma P.
- FIG. 6 is a graph showing the relationship between the stress generated in the reinforcing layer 30 and the material strength of the reinforcing layer 30.
- FIG. 1 shows a process in which the reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- the plasma P irradiation and the resin 22 impregnation are omitted.
- the high-pressure gas storage container 1 is briefly described as shown in FIGS. 1 to 3. As shown in FIGS. 1 to 3, the liner 10 that stores high-pressure gas such as hydrogen gas, and the belt-shaped reinforcing member 20 on the outer peripheral surface 10 A of the liner 10. And a reinforcing layer 30 formed by winding the wire.
- high-pressure gas such as hydrogen gas
- the belt-shaped reinforcing member 20 on the outer peripheral surface 10 A of the liner 10.
- a reinforcing layer 30 formed by winding the wire.
- the high-pressure gas storage container 1 includes a reinforcing member 20 made of reinforcing fibers 21 impregnated with a resin 22, as shown in FIG.
- the reinforcing member 20 includes a first region A1 formed by irradiating the reinforcing fiber 21 with the plasma P, and a smaller amount of the plasma P than the first region A1 with respect to the reinforcing fiber 21.
- region A2 which is irradiated.
- region A1 is located in the inner peripheral side of the reinforcement layer 30 by which intensity
- the liner 10 is formed as a cylindrical tank.
- the liner 10 has a gas barrier property and suppresses permeation of high-pressure gas to the outside.
- the liner 10 includes a barrel portion 11 provided at the center in the axial direction X, a mirror portion 12 provided on both sides of the barrel portion 11 in the axial direction X, and a base provided on one of the mirror portions 12. 13.
- the trunk portion 11 is formed in a cylindrical shape so as to extend in the axial direction X.
- the mirror part 12 is curved so as to gradually decrease outward in the axial direction X.
- the base 13 is configured to protrude outward from the mirror part 12 in the axial direction X.
- a pipe is connected to the base 13 or a valve mechanism including an open / close valve and a pressure reducing valve is connected to fill and discharge the high pressure gas storage container 1 with high pressure gas.
- die 13 may be provided in the mirror part 12 of both sides.
- the material constituting the liner 10 can be made of metal or synthetic resin.
- the metal for example, iron, aluminum, stainless steel or the like can be used.
- the synthetic resin that can be used include polyethylene, polyamide, and polypropylene.
- the reinforcing layer 30 is formed by winding a predetermined number of portions from the winding start end portion 20 a to the winding end end portion 20 b of the reinforcing member 20 around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- the winding start end portion 20a means an end portion when the reinforcing member 20 starts to be wound around the outer peripheral surface 10A of the liner 10
- the winding end end portion 20b means the reinforcing member 20 of the liner 10. It means the end when winding is finished on the outer peripheral surface 10A.
- the number of times the reinforcing member 20 is wound, that is, the number of the reinforcing layers 30 is not particularly limited, but is, for example, 20 to 30.
- the reinforcing layer 30 improves the pressure resistance strength of the liner 10.
- the reinforcing layer 30 includes a hoop layer 31 formed by winding the reinforcing member 20 around the trunk portion 11 along the circumferential direction, and the reinforcing member 20 against the trunk portion 11 and the mirror portion 12. And a helical layer 32 wound spirally.
- the hoop layers 31 and the helical layers 32 are alternately stacked.
- the hoop layers 31 and the helical layers 32 may not be stacked alternately. That is, for example, after the reinforcing member 20 is wound so that two hoop layers 31 are formed, the reinforcing member 20 may be wound so that two helical layers 32 are formed.
- the hoop layer 31 contributes to the radial tensile strength of the body 11 because the reinforcing member 20 is wound around the body 11.
- the helical layer 32 ensures the strength in the axial direction X of the high-pressure gas storage container 1 because the reinforcing member 20 is wound around the trunk portion 11 and the mirror portion 12.
- the reinforcing member 20 constituting the reinforcing layer 30 is composed of reinforcing fibers 21 impregnated with a resin 22, as shown in FIG.
- the reinforcing fiber 21 according to this embodiment is irradiated with plasma P.
- an acidic functional group can be added to the reinforcing fiber 21. Therefore, the adhesion of the resin 22 to the reinforcing fiber 21 is improved, and the strength as the reinforcing member 20 is improved.
- the reinforcing fiber 21 is irradiated with a relatively large amount of plasma P in the first region A1 on the inner peripheral side of the reinforcing member 20 that constitutes the reinforcing layer 30, and the reinforcing fiber 30 is reinforced.
- the plasma P is irradiated with a relatively small amount. More specifically, as shown in FIG. 5, in the reinforcing fiber 21, the irradiation amount of the plasma P is gradually reduced from the winding start end portion 20a to the winding end end portion 20b of the reinforcing member 20. .
- the reinforcing member 20 composed of the reinforcing fibers 21 irradiated with the plasma P has a strength that gradually decreases from the winding start end portion 20a to the winding end end portion 20b, similarly to the irradiation amount distribution of the plasma P. To do.
- the reinforcing member 20 is wound around the outer peripheral surface 10A of the liner 10 to form the reinforcing layer 30.
- the strength distribution along the radial direction r (see FIG. 3) of the reinforcing layer 30 is a distribution in which the strength decreases from the inner circumferential side to the outer circumferential side in the radial direction r, as shown by the solid line in FIG. (See arrow in FIG. 6).
- the stress ⁇ generated in the reinforcing layer 30 is expressed as follows: In the position R of the direction r, it shows by following formula (1).
- the stress ⁇ generated in the reinforcing layer 30 gradually decreases gradually from the inner peripheral side to the outer peripheral side as shown by the dotted line in FIG.
- the reinforcing member 20 has a strength that can withstand the stress ⁇ generated in the reinforcing layer 30, as shown in FIG.
- the reinforcing fiber 21 constituting the reinforcing member 20 for example, carbon fiber, glass fiber, polyamide fiber or the like can be used.
- a carbon fiber having a small coefficient of thermal expansion and excellent dimensional stability and less deterioration in mechanical properties even at high temperatures will be described.
- the reinforcing fiber 21 is configured in a bundle of about 1000 to 50000 carbon fibers.
- thermosetting resin for example, an epoxy resin, a polyester resin, or a phenol resin can be used.
- thermoplastic resin for example, a polyamide resin or a polypropylene resin can be used.
- FIG. 7 is a view showing a manufacturing apparatus 100 for the high-pressure gas storage container 1.
- the manufacturing apparatus 100 for the high-pressure gas storage container 1 includes a storage unit 110, an irradiation unit 120, an impregnation unit 130, a transport unit 140, a detection unit 150, and a control unit 160. .
- the storage unit 110 stores the bobbin-shaped reinforcing fibers 21.
- the storage unit 110 includes a set unit 111 on which the bobbin-shaped reinforcing fibers 21 are set, and four rollers 112 to 115 that maintain the tension of the reinforcing fibers 21.
- the irradiation unit 120 irradiates the reinforcing fiber 21 with plasma P.
- the irradiation unit 120 irradiates the surface 21A of the reinforcing fiber 21 with the plasma P from a direction inclined with respect to the Y direction (orthogonal direction orthogonal to the surface 21A). It is preferable.
- the irradiation part 120 irradiates the surface 21A of the reinforced fiber 21 with the plasma P from the direction inclined 30 degrees or more with respect to the Y direction.
- the plasma gas is applied to the surface 21A of the reinforcing fiber 21 while being inclined, so that compression of the plasma gas is suppressed and the center It is possible to irradiate by ignoring the high temperature part. Therefore, it is possible to efficiently irradiate the reinforcing fiber 21 with the plasma P and add an acidic functional group to the reinforcing fiber 21 while reducing damage to the reinforcing fiber 21.
- the power source of the irradiation unit 120 it is preferable to use an AC power source 121.
- the AC power supply 121 is grounded (grounded).
- the irradiation intensity of the plasma P irradiated from the irradiation unit 120 can be adjusted by adjusting the plasma voltage, current, frequency, electrode, and gas conditions (gas composition).
- adjusting the irradiation intensity of the plasma P means adjusting the irradiation intensity of the plasma P by adjusting at least one of the above-described plasma voltage, current, frequency, electrode, and gas conditions. It means to adjust.
- the plasma voltage is, for example, 200 to 400 V and preferably 260 to 280 V from the viewpoint of the ease of generating plasma P.
- the pulse discharge frequency is, for example, 10 to 30 kHz, and preferably 16 to 20 kHz, from the viewpoint of easy generation of plasma P.
- the plasma irradiation distance is, for example, 2 to 30 mm, preferably 10 to 15 mm. If the plasma irradiation distance is short, the reinforcing fiber 21 may be damaged. If the plasma irradiation distance is long, the surface modification effect becomes small.
- the plasma irradiation time is, for example, 0.1 to 5.0 seconds, and preferably 0.5 to 1.0 seconds. If the plasma irradiation time is short, the surface modification effect is small, and if it is long, the reinforcing fiber 21 may be damaged.
- the plasma gas for example, a mixed gas containing 0.5% or more of oxygen, nitrogen, or helium can be used.
- the impregnation unit 130 impregnates the reinforcing fiber 21 irradiated with the plasma P with the resin 22.
- the impregnation unit 130 includes a storage unit 131 in which the resin 22 is stored, and a rotating unit 132 that rotates in synchronization with the conveyance of the reinforcing fibers 21 while being in contact with the reinforcing fibers 21.
- the impregnation unit 130 further includes an adjustment unit 133 that adjusts the amount of the resin 22 that adheres to the rotation unit 132, and a pair of rollers 134 and 135 that are provided on the upstream side and the downstream side of the rotation unit 132 in the transport direction and maintain tension. And having.
- the impregnation unit 130 further includes a guide unit 136 that is provided on the downstream side of the downstream roller 135 and guides the reinforcing fiber 21 toward the liner 10.
- the storage unit 131 includes a recess 131 ⁇ / b> A on the upper side, and the resin 22 is stored in the recess 131 ⁇ / b> A.
- the rotating part 132 rotates while contacting the resin 22 stored in the recess 131A in the lower part and in contact with the reinforcing fiber 21 conveyed in the upper part.
- the rotating unit 132 rotates clockwise in synchronization with the conveyance of the reinforcing fiber 21.
- the resin 22 adhering to the outer periphery of the rotation part 132 is lifted upward and adheres to the reinforcing fiber 21 irradiated with the plasma P.
- the reinforcing fiber 21 can be impregnated with the resin 22 and the reinforcing member 20 is formed.
- the rotating unit 132 maintains the tension of the reinforcing fiber 21 irradiated with the plasma P together with the rollers 134 and 135.
- the adjusting unit 133 adjusts the amount of the resin 22 attached to the outer periphery of the rotating unit 132.
- the adjusting unit 133 contacts the resin 22 attached to the outer periphery of the rotating unit 132 to move the removing unit 133A that removes the resin 22 by a predetermined amount and the removing unit 133A so that the rotating unit 132 can be approached and separated.
- Moving unit 133B to be moved.
- the guide part 136 guides the reinforcing fiber 21 impregnated with the resin 22 toward the liner 10.
- the guide part 136 has an L shape.
- the structure of the impregnation part 130 will not be specifically limited if it is the structure which can impregnate the resin 22 to the reinforced fiber 21 with which the plasma P was irradiated.
- the transport unit 140 transports the reinforcing fiber 21 from the left side to the right side of FIG. 7, while the reinforcing member 20 in which the resin 22 is impregnated with the reinforcing fiber 21 irradiated with the plasma P on the surface 21 ⁇ / b> A is used as the liner 10. Is wound around the outer peripheral surface 10A.
- the transport unit 140 is a motor.
- the detection unit 150 detects the conveyance speed of the reinforcing fiber 21.
- a known speed sensor can be used.
- the location where the detection unit 150 is disposed is not particularly limited as long as the reinforcing fiber 21 is conveyed.
- the control unit 160 controls the operation of the irradiation unit 120, the transport unit 140, and the like.
- the control part 160 what was comprised by the well-known microcomputer provided with CPU, RAM, ROM, etc. can be used.
- the bobbin-shaped reinforcing fiber 21 is set in the setting unit 111, and the conveying unit 140 is operated in a state where the liner 10 is set at the position shown in FIG. As a result, the liner 10 rotates and the reinforcing fibers 21 are conveyed (S01). At this time, the detection unit 150 detects the conveyance speed of the reinforcing fibers 21.
- the irradiation unit 120 irradiates the conveyed reinforcing fiber 21 with the plasma P (S02).
- the plasma P is irradiated to the reinforcing fibers 21 constituting the reinforcing member 20 while gradually decreasing from the winding start end 20a to the winding end 20b of the reinforcing member 20. (See FIG. 5).
- the irradiation amount of the plasma P is adjusted by adjusting the irradiation intensity of the irradiation unit 120 and the conveyance speed of the reinforcing fiber 21.
- the reinforcing fiber 21 irradiated with the plasma P is impregnated with the resin 22 to form the reinforcing member 20 (S03).
- the strength of the reinforcing member 20 gradually decreases gradually from the winding start end 20a to the winding end end 20b in the same manner as the irradiation amount distribution of the plasma P.
- the reinforcing member 20 is wound around the outer peripheral surface 10A of the liner 10 to form the reinforcing layer 30 (S04).
- the reinforcing layer 30 formed by winding the reinforcing member 20 is formed along the radial direction r.
- the intensity distribution shown by the solid line 6 is provided.
- the conveying speed of the reinforcing fibers 21 depends on the diameter at the time of winding. Change. Specifically, when the reinforcing member 20 is wound on the outer peripheral side, the conveying speed of the reinforcing fiber 21 is increased. Therefore, the conveyance speed of the reinforcing fibers 21 increases from the front side to the rear side in the conveyance direction. Therefore, the irradiation amount of the plasma P to the reinforcing fiber 21 gradually decreases from the winding start end portion 20a to the winding end end portion 20b of the reinforcing member 20.
- the reinforcing member 20 is configured from the winding start end 20a to the winding end end 20b by increasing the angular velocity ⁇ or decreasing the irradiation intensity of the irradiation unit 120. It is preferable that the irradiation amount of the plasma P on the reinforcing fiber 21 to be gradually reduced.
- FIG. 10A is a graph showing the relationship between the stress generated in the reinforcing layer and the material strength of the reinforcing layer when the plasma P is not irradiated.
- the strength of the reinforcing layer 30 increases from the outer peripheral side to the inner peripheral side as shown in FIG. 10B. It improves so that it may increase toward the direction (refer arrow of FIG. 10B). And since the strength of the reinforcing layer 30 is improved, a margin for strength is generated on the inner peripheral side in addition to the outer peripheral side.
- the quantity of the reinforcing member 20 wound around the outer peripheral surface 10A of the liner 10 can be reduced to such an extent that the strength distribution of the reinforcing layer 30 is not exceeded.
- the stress generated in the reinforcing layer 30 increases, but the area indicated by reference sign S2 in FIG. 10C is smaller than the area indicated by reference sign S1 in FIG. 10A. For this reason, excessive strength design is relaxed. Therefore, the high-pressure gas storage container 1 can be reduced in weight by reducing the amount of the reinforcing member 20 wound around the liner 10 and reducing the thickness of the reinforcing layer 30 while maintaining appropriate strength.
- FIG. 11 is a graph showing the relationship between pressure and strain acting on the high-pressure gas storage container.
- the horizontal axis represents pressure
- the vertical axis represents strain.
- the straight line including the rhombus plot in FIG. 11 shows the relationship between the pressure and strain of the high-pressure gas storage container including the reinforcing fiber not irradiated with plasma.
- the straight line containing a rectangular plot shows the relationship between the pressure and the strain of the high-pressure gas storage container 1 according to this embodiment.
- the strain has shown the experimental value, and is measured with the strain gauge affixed on the outer peripheral side of the reinforcement layer.
- the reinforcing fiber 21 constituting the reinforcing member 20 is plasma from the winding start end 20a to the winding end end 20b of the reinforcing member 20 with respect to the liner 10.
- the irradiation amount of P is gradually decreased. Therefore, it is possible to increase the strength of the inner peripheral side than the outer peripheral side of the reinforcing layer 30. Therefore, when an external force F1 that is not intended on the outer peripheral side acts on the high-pressure gas storage container 1, as shown in FIG. 12, cracks C can be preferentially generated on the outer peripheral side. Therefore, the crack generation site can be detected by the appearance, and the detectability can be improved.
- the reinforcing fiber 21 constituting the reinforcing member 20 is plasma from the winding start end 20a to the winding end end 20b of the reinforcing member 20 with respect to the liner 10.
- the irradiation amount of P is gradually decreased. Therefore, the strength distribution of the reinforcing member 20 continuously decreases gradually from the winding start end portion 20a toward the winding end end portion 20b, so that the occurrence of shear fracture between the layers 31 and 32 can be suitably suppressed. .
- the high-pressure gas storage container 1 is a structure including the reinforcing member 20 including the reinforcing fibers 21 impregnated with the resin 22.
- the reinforcing member 20 has a first region A1 in which the reinforcing fiber 21 is irradiated with the plasma P and a second region A2 in which the reinforcing fiber 21 is irradiated with a smaller amount of the plasma P than the first region A1. And having.
- the high-pressure gas storage container 1 is provided with the reinforcing member 20 by positioning the first region A1 at a place where the strength is required to be higher than that of the second region A2.
- the high-pressure gas storage container 1 configured in this way, acidic functional groups can be added to the reinforcing fibers 21 by irradiating the reinforcing fibers 21 with the plasma P. For this reason, the adhesiveness of the resin 22 with respect to the reinforcing fiber 21 is improved, and the strength of the reinforcing member 20 can be improved. And 1st area
- the high-pressure gas storage container 1 further has a core member that is a liner 10, and the reinforcing member 20 has a strip shape.
- the belt-shaped reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10 to form a reinforcing layer 30 composed of a plurality of layers.
- the inner peripheral side of the reinforcing layer 30 is configured by the first region A1
- the outer peripheral side of the reinforcing layer 30 is configured by the second region A2. According to the structure configured in this manner, the strength on the inner peripheral side of the reinforcing layer 30 can be increased.
- the amount of winding the reinforcing member 20 can be reduced while maintaining an appropriate strength even for a structure in which a high pressure acts on the inner peripheral side of the reinforcing layer 30. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the core member is a liner 10 that contains high-pressure gas. For this reason, it is possible to reduce the amount of the reinforcing member 20 wound around the high-pressure gas storage container 1 while maintaining an appropriate strength. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the reinforcing member 20 has the irradiation amount of the plasma P with respect to the reinforcing fiber 21 gradually and gradually decreased from the winding start end portion 20a to the winding end end portion 20b. According to this configuration, the strength of the reinforcing member 20 is continuously reduced gradually from the winding start end portion 20a toward the winding end end portion 20b, so that the occurrence of shear fracture between the layers 31 and 32 is suitably suppressed. Can do.
- the method for manufacturing the high-pressure gas storage container 1 is a method for manufacturing the high-pressure gas storage container 1 including the reinforcing member 20 made of the reinforcing fibers 21 impregnated with the resin 22.
- the reinforcing fiber 21 is irradiated with the plasma P, impregnated with the resin 22, and the first region A ⁇ b> 1 is formed in the reinforcing member 20.
- the reinforcing fiber 21 is irradiated with a smaller amount of plasma P than the first region A ⁇ b> 1 to impregnate the resin 22, thereby forming the second region A ⁇ b> 2 in the reinforcing member 20.
- the first area A1 is positioned at a place where the strength is required to be higher than that of the second area A2.
- the acidic functional group can be added to the reinforcing fiber 21 by irradiating the reinforcing fiber 21 with the plasma P. For this reason, the adhesiveness of the resin 22 with respect to the reinforcing fiber 21 is improved, and the strength of the reinforcing member 20 can be improved.
- strength improved relatively by irradiating relatively much plasma P is located in the inner peripheral side of the reinforcement layer 30 by which intensity
- the high-pressure gas storage container 1 that can be reduced in weight as a whole by reducing the thickness while maintaining an appropriate strength.
- the reinforcing fiber 21 configured in a belt shape is transported, and the reinforcing fiber 21 is impregnated with the plasma P by irradiating the reinforcing fiber 21 with the plasma P on the front side in the transport direction so that the first region A1 is formed in the reinforcing member 20.
- the reinforcing fiber 21 is irradiated with a smaller amount of plasma P than the first region A1 to impregnate the resin 22, thereby forming the second region A2 in the reinforcing member 20.
- the reinforcing member 20 in which the first region A1 and the second region A2 are formed is wound around the core member that is the liner 10.
- the strength of the inner peripheral side of the reinforcing layer 30 can be increased. Therefore, the amount of winding the reinforcing member 20 can be reduced while maintaining an appropriate strength even for a structure in which a high pressure acts on the inner peripheral side of the reinforcing layer 30. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the core member is a liner 10 that contains high-pressure gas. For this reason, it is possible to reduce the amount of the reinforcing member 20 wound around the high-pressure gas storage container 1 while maintaining an appropriate strength. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the reinforcing fiber 21 is irradiated with the plasma P continuously decreasing gradually from the winding start end portion 20a to the winding end end portion 20b of the reinforcing member 20 with respect to the liner 10.
- this manufacturing method it is possible to manufacture a high-pressure gas storage container in which the strength of the reinforcing member 20 gradually decreases gradually from the winding start end portion 20a toward the winding end end portion 20b. For this reason, generation
- the irradiation amount of the plasma P is adjusted by adjusting the irradiation intensity of the plasma P by adjusting at least one of the plasma voltage, current, frequency, electrode, and gas conditions.
- the irradiation amount of the plasma P with respect to the reinforced fiber 21 can be adjusted easily. Therefore, the strength of the reinforcing member 20 can be adjusted so that the area indicated by reference numeral S2 in FIG. 10C is reduced. Thus, the excessive strength design is further relaxed by reducing the area indicated by reference sign S2.
- the irradiation amount of the plasma P is adjusted by changing the conveyance speed of the reinforcing fiber 21 when the reinforcing fiber 21 is irradiated with the plasma P.
- the conveying speed of the reinforcing fiber 21 can be increased. it can. Therefore, manufacturing time can be shortened and productivity is improved.
- the surface 21A of the reinforcing fiber 21 is irradiated with the plasma P from a direction inclined with respect to the Y direction orthogonal to the surface 21A.
- the plasma gas is irradiated to the surface 21A of the reinforcing fiber 21 while being inclined, so that the compression of the plasma gas is suppressed and the central high temperature portion can be emitted and irradiated. Therefore, it is possible to efficiently irradiate the reinforcing fiber 21 with the plasma P and add an acidic functional group to the reinforcing fiber 21 while reducing damage to the reinforcing fiber 21.
- the high-pressure gas storage container according to the modified example 1 is different from the high-pressure gas storage container 1 according to the above-described embodiment in the irradiation amount distribution of the plasma P with respect to the reinforcing fiber 21.
- FIG. 13 is a graph showing an irradiation dose distribution of plasma P according to Modification Example 1.
- the reinforcing fiber 21 of the high-pressure gas storage container according to the modified example 1 has an irradiation amount of the plasma P from the winding start end 20 a to the winding end end 20 b of the reinforcing member 20 with respect to the liner 10. It gradually decreases step by step.
- a certain amount of plasma P is irradiated on the hoop layer 31a.
- the helical layer 32 adjacent to the outer peripheral side of the hoop layer 31a is irradiated with a smaller amount of plasma P than the hoop layer 31a.
- the hoop layer 31 b adjacent to the outer peripheral side of the helical layer 32 is irradiated with a smaller amount of plasma P than the helical layer 32.
- the irradiation amount of the plasma P gradually decreases in the order of the helical layer 32 and the hoop layer 31 toward the outer peripheral side.
- the reinforcing member 20 composed of the reinforcing fibers 21 irradiated with the plasma P gradually decreases in strength from the winding start end portion 20a to the winding end end portion 20b in the same manner as the irradiation amount distribution of the plasma P. To do.
- the intensity distribution along the radial direction r of the reinforcement layer 30 is the intensity
- the plasma P is gradually reduced to the reinforcing fibers 21 constituting the reinforcing member 20 from the winding start end 20a to the winding end end 20b of the reinforcing member 20 with respect to the liner 10. Irradiate while.
- the process of irradiating the plasma P will be described in detail.
- the step of irradiating the plasma P includes a first irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20 wound around the hoop layer 31 with a certain amount of plasma P. Further, the step of irradiating the plasma P includes a second irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20 wound around the helical layer 32 with a certain amount of plasma P.
- the first irradiation step and the second irradiation step are performed alternately, and the amount of irradiation of plasma P is reduced when switching from the first irradiation step to the second irradiation step and when switching from the second irradiation step to the first irradiation step. .
- the reinforcing member 20 has the irradiation amount of the plasma P on the reinforcing fiber 21 from the winding start end 20a to the winding end 20b to the liner 10. It gradually decreases step by step.
- the strength of the inner peripheral side of the reinforcing layer 30 can be increased. Therefore, the amount of the reinforcing member 20 to be wound can be reduced while maintaining an appropriate strength even for a high-pressure gas storage container in which a high pressure acts on the inner peripheral side of the reinforcing layer 30. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the reinforcement layer 30 is formed by gradually decreasing the irradiation amount of the plasma P to the reinforcing fiber 21 for each of the layers 31 and 32. For this reason, the irradiation amount of the plasma P in one layer 31 and 32 becomes constant. Therefore, since the strength of the reinforcing layer 30 in one layer 31 and 32 can be made constant, a high-pressure gas storage container having a suitable strength distribution can be provided.
- the plasma P is applied stepwise to the reinforcing fibers 21 from the winding start end 20a to the winding end end 20b of the reinforcing member 20 with respect to the liner 10. Irradiate while gradually decreasing.
- a high-pressure gas storage container having high strength on the inner peripheral side of the reinforcing layer 30 can be manufactured. Therefore, the amount of the reinforcing member 20 to be wound can be reduced while maintaining an appropriate strength even for a high-pressure gas storage container in which a high pressure acts on the inner peripheral side. Therefore, the thickness of the reinforcing layer 30 can be reduced and the product as a whole can be reduced in weight.
- the object to be irradiated with the plasma P is changed from the reinforcing fiber 21 in one layer to the reinforcing fiber 21 in another layer adjacent on the outer peripheral side of the one layer.
- the irradiation amount of plasma P is reduced. According to this manufacturing method, the irradiation amount of the plasma P in one of the layers 31 and 32 is constant. Therefore, since the strength of the reinforcing layer 30 in one layer 31 and 32 can be made constant, a high-pressure gas storage container having a suitable strength distribution can be provided.
- the high-pressure gas storage container according to Modification Example 2 is different from the high-pressure gas storage container 1 according to the embodiment described above in the irradiation amount distribution of the plasma P on the reinforcing fiber 21.
- FIG. 14 is a graph showing the irradiation dose distribution of the plasma P according to the modified example 2.
- the reinforcing member made of the reinforcing fiber 21 irradiated with the plasma P has a strength distribution with improved strength only from the winding start end portion 20a to the intermediate portion 20c, similarly to the irradiation amount distribution of the plasma P.
- the plasma P In the step of irradiating the plasma P, a certain amount of the plasma P is irradiated to the reinforcing fibers 21 constituting the reinforcing member 20 from the winding start end portion 20a to the intermediate portion 20c. Then, the plasma P irradiation is stopped. That is, the plasma P is not irradiated to the reinforcing fiber 21 constituting the reinforcing member 20 from the midway portion 20c to the winding end portion 20b.
- FIG. 15A is a graph showing the relationship between the stress generated in the reinforcing layer and the material strength of the reinforcing layer when the plasma P is not irradiated.
- the strength design is performed on the inner peripheral side of the reinforcing layer where high stress is generated. For this reason, an excessive strength design corresponding to the area indicated by reference numeral S1 in FIG. 15A is performed, and the weight of the high-pressure gas storage container is increased.
- the strength on the inner peripheral side of the reinforcing layer 30 is as shown in FIG. 15B. Improve (see arrow in FIG. 15B). And since the strength on the inner peripheral side of the reinforcing layer 30 is improved, a margin for strength is generated on the inner peripheral side in addition to the outer peripheral side.
- the quantity of the reinforcing member 20 wound around the outer peripheral surface 10A of the liner 10 can be reduced to such an extent that the strength distribution of the reinforcing layer 30 is not exceeded.
- the stress generated in the reinforcing layer 30 increases, but the area indicated by reference sign S3 in FIG. 15C is smaller than the area indicated by reference sign S1 in FIG. 15A. For this reason, excessive strength design is relaxed. Therefore, it is possible to reduce the weight of the high-pressure gas storage container by reducing the thickness of the reinforcing layer 30 by reducing the amount wound around the liner 10 of the reinforcing member 20 while maintaining appropriate strength.
- the reinforcing member 20 from the winding start end portion 20a to the midway portion 20c is formed by irradiating the reinforcing fiber 21 with a certain amount of plasma P. Further, the reinforcing member 20 from the midway portion 20 c to the winding end portion 20 b is not irradiated with the plasma P with respect to the reinforcing fiber 21. When manufacturing such a reinforcing member 20, the irradiation of the plasma P may be stopped at the intermediate portion 20c. Therefore, a high-pressure gas storage container can be easily manufactured.
- the plasma P is applied to the reinforcing fibers 21 constituting the reinforcing member 20 from the winding start end portion 20a to the midway portion 20c. A certain amount of is irradiated. Moreover, the plasma P is not irradiated with respect to the reinforced fiber 21 which comprises the reinforcement member 20 ranging from the intermediate
- the high-pressure gas storage container in which the reinforcing member 20 is wound around the outer peripheral surface 10A of the liner 10 as a structure has been described as an example.
- the structure may be applied to an automobile panel 5 as shown in FIG.
- the automobile panel 5 is formed in a panel shape with the reinforcing member 20 as a core member.
- the panel 5 is formed by an RTM (Resin Transfer Molding) molding method.
- RTM Resin Transfer Molding
- the irradiation intensity of the plasma P is adjusted by adjusting the plasma voltage, current, frequency, electrode, and gas conditions.
- the irradiation intensity of the plasma P may be adjusted by providing a filter between the irradiation unit 120 and the reinforcing fiber 21. According to this structure, the irradiation amount of the plasma P with respect to the reinforced fiber 21 can be adjusted easily, without operating a plasma voltage, an electric current, a frequency, an electrode, and gas conditions.
- the liner 10 has a cylindrical shape, but may have a quadrangular prism shape or the like.
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Abstract
Description
本実施形態に係る高圧ガス貯蔵容器1は、概説すると、図1~図3に示すように、水素ガス等の高圧ガスを収容するライナー10と、ライナー10の外周面10Aに帯状の補強部材20を巻き付けて形成した補強層30と、を有する。
次に、図7を参照して、本実施形態に係る高圧ガス貯蔵容器1の製造装置100を説明する。図7は、高圧ガス貯蔵容器1の製造装置100を示す図である。
次に、図8のフローチャートを参照して、本実施形態に係る高圧ガス貯蔵容器1の製造方法について説明する。なお、本実施形態に係る高圧ガス貯蔵容器1の製造方法は、フィラメントワインディング法によって行われる。
以下、上述した実施形態の改変例1について説明する。
以下、上述した実施形態の改変例2について説明する。
5 自動車のパネル(構造体)、
10 ライナー、
10A ライナーの外周面、
11 胴部、
12 鏡部、
20 補強部材、
21 強化繊維、
22 樹脂、
30 補強層、
31 フープ層、
32 ヘリカル層、
A1 第1領域、
A2 第2領域、
P プラズマ。
Claims (20)
- 樹脂が含浸された強化繊維からなる補強部材を備える構造体であって、
前記補強部材は、前記強化繊維に対してプラズマが照射されてなる第1領域と、前記強化繊維に対して前記第1領域よりも少ない量の前記プラズマが照射されてなる、または、前記プラズマが照射されない第2領域と、を有し、
前記第1領域を前記第2領域よりも強度が求められる箇所に位置させて、前記補強部材を設けてなる構造体。 - 芯部材をさらに有し、
前記補強部材は帯状を有し、
帯状の前記補強部材は、前記芯部材の外周面に巻き付けられて複数の層からなる補強層を構成し、
前記補強層は、当該補強層の内周側が前記第1領域によって構成され、当該補強層の外周側が前記第2領域によって構成される請求項1に記載の構造体。 - 前記芯部材は、高圧ガスを収容するライナーである請求項2に記載の構造体。
- 前記補強部材は、前記芯部材に対する巻き始め端部から巻き終わり端部に亘って、前記強化繊維に対する前記プラズマの照射量が連続的に漸減してなる請求項2または3に記載の構造体。
- 前記補強部材は、前記芯部材に対する巻き始め端部から巻き終わり端部に亘って、前記強化繊維に対する前記プラズマの照射量が段階的に漸減してなる請求項2または3に記載の構造体。
- 前記補強層は、前記層ごとに、前記強化繊維に対する前記プラズマの照射量が段階的に漸減してなる請求項5に記載の構造体。
- 前記芯部材に対する巻き始め端部から、当該巻き始め端部と巻き終わり端部との間に位置する途中部位までにおける前記補強部材は、前記強化繊維に対して、前記プラズマが一定量照射されてなり、
前記途中部位から前記巻き終わり端部までにおける前記補強部材は、前記強化繊維に対して、前記プラズマが照射されていない請求項2または3に記載の構造体。 - 前記補強部材を芯部材としてパネル形状に形成されてなる請求項1に記載の構造体。
- 樹脂が含浸された強化繊維からなる補強部材を備える構造体の製造方法であって、
前記強化繊維に対してプラズマを照射して、前記樹脂を含浸させて、前記補強部材に第1領域を形成し、
前記強化繊維に対して前記第1領域よりも少ない量の前記プラズマを照射して、または、前記プラズマを照射することなく、前記樹脂を含浸させて、前記補強部材に第2領域を形成し、
前記第1領域を前記第2領域よりも強度が求められる箇所に位置させる、構造体の製造方法。 - 帯状に構成される前記強化繊維を搬送し、
搬送方向の前方側において、前記強化繊維に対して前記プラズマを照射して、前記樹脂を含浸させて、前記補強部材に前記第1領域を形成し、
前記搬送方向の後方側において、前記強化繊維に対して前記第1領域よりも少ない量の前記プラズマを照射して、前記樹脂を含浸させて、前記補強部材に前記第2領域を形成し、
前記第1領域および前記第2領域が形成された前記補強部材を芯部材に巻き付ける請求項9に記載の構造体の製造方法。 - 前記芯部材は、高圧ガスを収容するライナーである請求項10に記載の構造体の製造方法。
- 前記補強部材の前記芯部材に対する巻き始め端部から巻き終わり端部に亘って、前記強化繊維に対して、前記プラズマを連続的に漸減しながら照射する請求項10または11に記載の構造体の製造方法。
- 前記補強部材の前記芯部材に対する巻き始め端部から巻き終わり端部に亘って、前記強化繊維に対して、前記プラズマを段階的に漸減しながら照射する請求項10または11に記載の構造体の製造方法。
- 前記プラズマを前記強化繊維に対して照射する際に、
前記プラズマを照射する対象が、一の層において巻き付けられる前記補強部材を構成する前記強化繊維から、前記一の層の外周側に隣り合う他の層において巻き付けられる前記補強部材を構成する前記強化繊維に切り替わる際に、前記プラズマの照射量を減らす請求項13に記載の構造体の製造方法。 - 前記補強部材の前記芯部材に対する巻き始め端部から、当該巻き始め端部と巻き終わり端部との間に位置する途中部位に亘って、前記補強部材を構成する前記強化繊維に対して、前記プラズマを一定量照射し、前記補強部材の前記途中部位から前記巻き終わり端部に亘って、前記補強部材を構成する前記強化繊維に対して、前記プラズマを照射しない請求項10または11に記載の構造体の製造方法。
- 前記補強部材を芯部材としてパネル形状に形成する請求項9に記載の構造体の製造方法。
- プラズマ電圧、電流、周波数、電極、ガス条件の少なくとも一つを調整して前記プラズマの照射強度を調整することによって、前記プラズマの照射量を調整する請求項9~16のいずれか1項に記載の構造体の製造方法。
- 前記プラズマの照射部と前記強化繊維との間にフィルターを設けて、前記プラズマの照射強度を調整することによって、前記プラズマの照射量を調整する請求項9~17のいずれか1項に記載の構造体の製造方法。
- 前記プラズマを前記強化繊維に対して照射する際における前記強化繊維の搬送速度を変えることによって、前記プラズマの照射量を調整する請求項9~18のいずれか1項に記載の構造体の製造方法。
- 前記強化繊維の表面に、前記表面に直交する直交方向に対して傾斜した方向から前記プラズマを照射する請求項9~19のいずれか1項に記載の構造体の製造方法。
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KR101998540B1 (ko) | 2019-07-09 |
US11040479B2 (en) | 2021-06-22 |
EP3425258A1 (en) | 2019-01-09 |
JP6583530B2 (ja) | 2019-10-02 |
KR20180108859A (ko) | 2018-10-04 |
CN108779893B (zh) | 2019-07-23 |
JPWO2017149818A1 (ja) | 2019-01-31 |
KR20190060017A (ko) | 2019-05-31 |
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