WO2012114933A1 - プリフォームの製造装置および製造方法ならびにその方法により製造されたプリフォーム - Google Patents
プリフォームの製造装置および製造方法ならびにその方法により製造されたプリフォーム Download PDFInfo
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- WO2012114933A1 WO2012114933A1 PCT/JP2012/053346 JP2012053346W WO2012114933A1 WO 2012114933 A1 WO2012114933 A1 WO 2012114933A1 JP 2012053346 W JP2012053346 W JP 2012053346W WO 2012114933 A1 WO2012114933 A1 WO 2012114933A1
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- WIPO (PCT)
- Prior art keywords
- mold
- preform
- reinforcing fiber
- shaping
- thermal conductivity
- Prior art date
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Classifications
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- 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
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/12—Compression moulding
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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- 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
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
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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
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- 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
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3828—Moulds made of at least two different materials having different thermal conductivities
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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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2907/00—Use of elements other than metals as mould material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
- B29K2995/0015—Insulating
Definitions
- the present invention relates to a preform manufacturing apparatus and manufacturing method used for RTM (Resin® Transfer® Molding) molding and a preform manufactured by the method, and in particular, minimizes heat radiation when heating for preform shaping. It is related with the technique which made it possible to improve the shaping accuracy of a preform.
- RTM Resin® Transfer® Molding
- a preform used for RTM molding conventionally, for example, (1) a plurality of laminated reinforcing fiber bases are placed in a shaping mold, the shaping mold is closed, and the shaping mold is shaped ( 2) Heat the shaping mold (or preheat it), thereby heating the base material and melting the fixing material attached to the base material, (3) While maintaining the shape with the shaping mold Then, the preform is cooled, the fixing material is solidified to fix the base material layers, and (4) the shaped preform is taken out of the shaping mold.
- a metal mold is generally used as a shaping mold, and usually a heating means (circulating a heat medium or electric heater) is used for either the lower mold or the upper mold. Means) are provided.
- the shaping mold is only the lower mold, a base material laminated on the lower mold is placed, bagging with a film from above, and the film and the mold are surrounded. By vacuuming the space, it is possible to press the substrate through the film with atmospheric pressure to obtain a predetermined shaped shape (for example, Patent Document 1).
- a predetermined shaped shape for example, Patent Document 1
- the upper and lower molds are often used as the shaping mold.
- Patent Document 2 an upper and lower mold made of aluminum is used, and in shaping to a complex shape including a three-dimensional shape, as shown in Patent Document 3, a plurality of movable molds are used. A mold is used.
- both the upper and lower molds are made of metal as described above, there are the following problems.
- a heating means is provided only in the lower mold and a heat insulating material such as a foam material is interposed in the upper mold, the heat insulating material such as the foam material is deformed when pressing for shaping. Dimensional accuracy decreases.
- heating means are provided on both the upper and lower molds, it becomes difficult to handle at least one of the molds as a split mold and to shape a complex shape.
- the object of the present invention is to pay attention to the above-mentioned problems and to save energy by reducing heat dissipation and increasing heating efficiency. Even with a preform shaped into a complicated shape, the dimensional accuracy is high.
- An object of the present invention is to provide an apparatus and method capable of reliably and easily producing a preform that can be produced and used for RTM molding, and a preform produced by the method.
- a preform manufacturing apparatus includes a laminate in which a plurality of laminated reinforcing fiber base materials to which a fixing material mainly composed of a thermoplastic resin is attached are opposed to each other.
- An apparatus for manufacturing a preform used for RTM molding by forming into a predetermined shape through heating with a shaping mold composed of a first mold and a second mold, and heating only the first mold A mechanism is provided, and at least a contact surface of the second mold that contacts the reinforcing fiber base is formed of a material having a lower thermal conductivity than that of the first mold.
- the shaping molds only one of the shaping molds (first mold) is provided with a heating mechanism, and heating is performed only from the first mold side. Since the other mold (second mold) is made of a material having a lower thermal conductivity, heat conduction to the second mold and further heat radiation from the second mold can be suppressed to a low level. As a result, the laminate of the reinforcing fiber base material to which the fixing material mainly composed of the thermoplastic resin, which is disposed in the shaping mold, is adhered is efficiently heated to a desired temperature with a small amount of heat. become. Energy saving can be achieved by increasing the heating efficiency.
- the other mold that is not provided with a heating mechanism can be easily configured as a split mold, so that it can easily cope with shaping to a complicated shape with high dimensional accuracy. become.
- the contact surface is preferably formed of a material having a thermal conductivity of 0.01 W / m ⁇ K or more and 10 W / m ⁇ K or less, and a material having a thermal conductivity of 5 W / m ⁇ K or less. More preferably, it is formed. The lower the thermal conductivity of the second type forming material, the better. As a result, high heating efficiency and excellent energy saving as described above can be realized. However, if the thermal conductivity of the contact surface is too low, the cooling of the preform takes time because the heat release from the mold does not proceed when cooling with the shaping mold closed in the solidification process of the adhesive. It is feared that it is necessary. Therefore, the contact surface forming material preferably has a thermal conductivity of 0.01 W / m ⁇ K or more, more preferably 0.1 W / m ⁇ K or more.
- Examples of the material for forming such a low thermal conductivity contact surface include a non-metallic material having a thickness of at least 5 mm. Among them, for ease of manufacture, a resin having a low thermal conductivity and high heat resistance is used. Material is preferred.
- epoxy resin thermal conductivity: 0.2 to 0.4 W / m ⁇ K
- phenol resin silica
- bakelite resin silica
- PTFE resin about 0.25 W / m ⁇ K
- chemical wood thermal conductivity: 0.1 to 1.8 W / m ⁇ K
- heat resistant board material for example, Rosna board (manufactured by Nikko Kasei Co., Ltd., same: 0.24 W / m ⁇ K
- the heat resistance only needs to be sufficient to withstand the forming temperature of the preform and the temperature for melting the thermoplastic resin as the fixing material.
- a thin material such as a film among non-metallic materials is not suitable as a material for forming the contact surface.
- manual work increases, and problems such as a decrease in productivity and an increase in cost may occur.
- the shape cannot be given to the second mold side.
- the thin material is easily affected by the outside air temperature, the heat transmitted from the first mold provided with the heating source is radiated. Therefore, it may be necessary to provide a heating source also on the second mold side.
- the second mold preferably has a thickness of at least 5 mm.
- the first mold is preferably formed of a material having a relatively high thermal conductivity for heat transfer toward the base material side, and particularly preferably made of metal.
- a material having a relatively high thermal conductivity for heat transfer toward the base material side and particularly preferably made of metal.
- metal for example, aluminum (thermal conductivity: 204-230 W / m ⁇ K), carbon steel (same: 36-53 W / m ⁇ K), chrome steel (22:60 W / m ⁇ K) may be used. it can. However, it is not limited to the exemplified materials.
- the second mold according to the present invention is not provided with a heating mechanism, so that it can be easily configured as a split mold.
- the split type By forming the split type, it is possible to cope with shaping of a preform having a complicated shape.
- the type of the reinforcing fiber base that constitutes the laminate is not particularly limited, and a carbon fiber base, a glass fiber base, an aramid fiber base, or a hybrid fiber base that combines these can be used.
- the present invention is particularly effective in the case of a carbon fiber base material that requires shaping of a preform with high dimensional accuracy during RTM molding.
- the glass transition temperature (Tg) of the fixing agent is in the range of 50 to 80 ° C.
- Tg of the fixing agent is lower than 50 ° C.
- the handling properties may be deteriorated, for example, the substrates may stick to each other during transportation of the substrates.
- it exceeds 80 ° C. it is necessary to increase the shaping temperature, and it may be necessary to use a special material having a high heat-resistant temperature, particularly in the second mold.
- the fixing agent adhered to the surface of the reinforcing fiber base is mainly composed of a thermoplastic resin.
- the thermoplastic resin include, but are not limited to, polyamide, polysulfone, polyetherimide, polyphenylene ether, polyimide, polyamideimide, and polyvinyl formal.
- the resin material is composed mainly of a thermoplastic resin, it is easy to handle when it is spread and fixed on a reinforcing fiber woven fabric, and when the reinforcing fiber woven fabric is laminated and deformed into a three-dimensional shape and then the layers are bonded together And productivity is improved.
- a main component means the component with the largest ratio among the components which comprise a resin material.
- the fixing agent contains a thermosetting resin such as an epoxy resin or a phenol resin, and a thermoplastic resin and / or a thermosetting resin can be appropriately selected and used.
- a laminate in which a plurality of reinforcing fiber base materials to which a fixing material mainly composed of a thermoplastic resin is attached is laminated, the first mold and the second mold facing each other.
- the forming die is formed into a predetermined shape by a press with a shaping die, and the fixing material existing between the reinforcing fiber bases is melted by heating, and the fixing material is solidified by cooling after melting to reinforce the reinforcing fiber base.
- the contact surface which contacts a base material consists of a method with which heat conductivity to the 2nd type
- the contact surface is preferably formed of a material having a thermal conductivity of 0.01 W / m ⁇ K or more and 10 W / m ⁇ K or less. More preferably, it is made of a material of K or less.
- the contact surface is preferably formed of a non-metallic material having a thickness of at least 5 mm as exemplified above, and the first mold is also formed of a metallic material as exemplified above. Preferably it is.
- the material for forming the contact surface preferably has a thermal conductivity of 0.01 W / m ⁇ K or more, more preferably 0.1 W / m ⁇ K or more.
- the second mold that is not provided with a heating mechanism can be composed of a split mold, which makes it possible to easily cope with shaping to a complicated shape with high dimensional accuracy.
- the preform manufacturing method in the cooling process, it is possible to cool the laminated body in a pressed state. If the press is cooled in a released state, the fixing material is solidified in the released system, which may reduce the dimensional accuracy of the preform. On the other hand, if it does in this way, since the cooling operation
- the type of the reinforcing fiber base to be used is not particularly limited, but the present invention is particularly effective when the reinforcing fiber base is made of a carbon fiber base.
- the glass transition temperature (Tg) of the fixing agent is in the range of 50 to 80 ° C.
- the present invention also provides a preform manufactured using the above method.
- a preform with high dimensional accuracy is efficiently manufactured with less heat energy.
- a preform used for a desired RTM molding can be reliably and easily manufactured with high dimensional accuracy and high productivity even when forming into a complicated shape.
- FIG. 1 shows a preform manufacturing apparatus 1 according to an embodiment of the present invention.
- a thermoplastic resin is mainly contained in a shaping die 4 composed of a lower die 2 as a first die and an upper die 3 as a second die facing each other.
- Only the lower mold 2 is provided with a heat medium flow passage for circulating hot water or heated oil as the heating mechanism 6.
- the lower mold 2 further includes an air-cooling or water-cooling cooling means. 7 is provided.
- the heating mechanism in addition to the above-described heat medium circulation system, it is also possible to configure a mechanism having a heater.
- the cooling means 7 for example, a method of cooling the preform by supplying compressed air from a through-hole provided in the lower mold 2 toward the preform, or cooling water in a flow passage provided in the lower mold 2 is used. It is possible to adopt a method of circulating the.
- type 3 in which the heating mechanism 6 is not provided is comprised by the division
- the upper mold 3 is connected to a press mechanism 8 that opens and closes the upper mold 3 with respect to the lower mold 2 and generates a pressing force (pressing pressure) for shaping the laminated body 5.
- the laminated body 5 is arranged in such a shaping mold 4, and the laminated body 5 is shaped into a predetermined shape through heating from the lower mold 2 and pressurization from the upper mold 3 by the press mechanism 8. By being shaped into a preform, a preform used for RTM molding is produced.
- the upper mold 3 in the shaping mold 4 is made of a material having a lower thermal conductivity than the lower mold 2. More specifically, for example, the lower mold 2 is made of aluminum (thermal conductivity at 20 ° C .: 228 W / m ⁇ K), an aluminum alloy, or steel (thermal conductivity of pure iron at 20 ° C .: 72.7 W / m ⁇ K).
- the upper mold 3 is made of a heat-resistant resin (for example, a thermal conductivity of a phenol resin at 20 ° C .: 0.233 W / m ⁇ K).
- the laminate 5 is shaped into a predetermined shape by pressing between the lower mold 2 and the upper mold 3 of the shaping mold 4, and the lower mold
- the fixing material existing between the reinforcing fiber bases is melted by heating by the heating mechanism 6 from the second side, and after the melting, the fixing material is solidified by cooling by the cooling means 7 and the reinforcing fiber bases are bonded to each other to form a shaped shape. Retained.
- heating is performed only from the lower mold 2 side where the heating mechanism 6 is provided.
- the upper mold 3 is made of a material having lower thermal conductivity than the lower mold 2, The heat conduction to the mold 2 and further the heat radiation from the lower mold 2 to the outside can be kept low.
- the laminate 5 of the reinforcing fiber base material which is disposed in the shaping mold 4 and to which the fixing material mainly composed of a thermoplastic resin is adhered, is necessary for efficiently melting the fixing material with a small amount of heat. A sufficient amount of heat is applied, and then the substrates are bonded together by the solidified material.
- the heating mechanism 6 the amount of energy used during shaping is reduced, and energy saving is possible.
- the upper die 3 not provided with the heating mechanism 6 can be configured as a divided die as shown in the figure, so that it is possible to cope with shaping to a complicated shape and the complicated shape. Can be shaped with high dimensional accuracy.
- thermocouples 16 [(1), (2), (3), (4), (5)] arranged on the both sides of the fiber woven fabric 13 layer and the laminate 14.
- the upper mold 15 is not provided with a heat source.
- the lower mold 12 was made of aluminum and the upper mold 15 was made of resin (chemical wood, thermal conductivity: 1.5 W / m ⁇ K) as an example, and the lower mold 12 was made of aluminum (thermal conductivity: 228 W). / M ⁇ K), and the upper die 15 made of aluminum was used as a comparative example.
- a test was conducted to measure how the temperature at each location changed after the die was closed. The test results are shown in Table 1.
- the preform obtained was a preform in which the respective layers were firmly fixed, whereas in the case of the comparative example, the fixing material was not melted. It wasn't done enough. For this reason, the shape collapses when the preform is conveyed, and cannot be used for RTM molding.
- FIG. 3 is a schematic characteristic diagram showing an example of the temperature distribution in the embodiment of the present invention.
- FIG. 3 shows a laminate 5 (5-layer structure) of reinforcing fiber base material sandwiched between a lower mold 2 as a first mold and an upper mold 3 as a second mold.
- fever transfer Q has produced toward is shown typically.
- T (T 1 to T 8 ) is the temperature (° C.) of the contact surface at each point
- l (l 1 to l 7 ) is the thickness (m) of each layer
- ⁇ ( ⁇ 1 to ⁇ 7 ) is the heat of each material.
- Conductivity W / m ⁇ K).
- the layers of the lower mold 2, the upper mold 3 and the laminated body 5 are regarded as parallel plane plates that are in close contact with each other, the contact thermal resistance at the contact surface between the layers is ignored, and the heat transfer Q is steady heat conduction (T 1 When it is assumed that T is constant and T 8 is constant, the amount of heat q (W / m 2 ) transferred per unit area is expressed by the following mathematical formula.
- T 2 to T 7 can be expressed by the following mathematical formulas (where 2 ⁇ i ⁇ 7).
- T 1 100 ° C. and T 8 is 25 ° C.
- the upper die 3 when the upper die 3 is changed to a resin having a low thermal conductivity, the heat conduction in the upper die 3 becomes rate limiting, and the temperature difference becomes large. Therefore, the PAN having a low thermal conductivity as a reinforcing fiber substrate. Even when a carbon fiber or glass fiber is used, the temperature drop in each layer of the reinforcing fiber base can be reduced.
- the upper mold 3 is made of a material having high thermal conductivity, heat transfer proceeds in the upper mold 3, so that strengthening in the vicinity of the upper mold 3 is performed. It can be considered that it takes time to heat each layer of the fiber base material.
- the upper mold 3 is made of a material having a low thermal conductivity, the heat transfer in the upper mold 3 is rate-determining, so that the temperature drop in the vicinity of the upper mold 3 can be prevented, and the reinforcing fiber substrate Even if it is a PAN-based carbon fiber having a low thermal conductivity, each layer of the reinforcing fiber base can be rapidly heated.
- the preform manufacturing apparatus and manufacturing method according to the present invention can be applied to any application that requires the preform used for RTM molding to be accurately shaped while saving energy.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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Abstract
Description
まず、下型のみに加熱手段を設けた場合、反対側の上型への放熱が大きくなるので、賦形のための温度を一定の温度に保つためには、下型を必要以上に加熱しなければならないことが多い。そのため、加熱のために使用するエネルギーが大きくなり、省エネルギーが困難である。また、下型のみに加熱手段を設け、上型に対して発泡材などの断熱材を介在させた場合、賦形のための押圧時に発泡材などの断熱材が変形するため、できあがるプリフォームの寸法精度が低下する。一方、上下の型両方に加熱手段を設ける場合、少なくともいずれか一方の型を分割型として複雑な形状の賦形に対応することが困難となる。
図1は、本発明の一実施態様に係るプリフォームの製造装置1を示している。このプリフォームの製造装置1においては、互いに対向する第1の型としての下型2および第2の型としての上型3から構成される賦形型4内に、熱可塑性樹脂を主成分とする固着材を付着させた強化繊維基材を複数枚積層した積層体5が配置される。下型2にのみ、加熱機構6としての、温水または加熱されたオイルを循環させる熱媒流通路が配設されており、本実施態様では、さらに下型2に、空冷または水冷方式の冷却手段7が設けられている。加熱機構としては、上記のような熱媒循環方式の他に、ヒータを備えた機構に構成することも可能である。冷却手段7としては、例えば、圧縮空気を下型2に設けた貫通孔からプリフォームに向けて供給することによりプリフォームを冷却する方式か、下型2内に設けた流通路中に冷却水を循環させる方式を採用することができる。また、本実施態様では、加熱機構6が設けられていない上型3は、複数に分割された分割型に構成されている。この上型3には、上型3を下型2に対して開閉するとともに、積層体5の賦形のための押圧力(プレス圧)を発生するプレス機構8が連結されている。
2 第1の型としての下型
3 第2の型としての上型
4 賦形型
5 強化繊維基材の積層体
6 加熱機構
7 冷却手段
8 プレス機構
Q 熱の移動
l、l1~l7 厚み
T、T1~T8 接触面の温度
λ、λ1~λ7 熱伝導率
Claims (16)
- 熱可塑性樹脂を主成分とする固着材を付着させた強化繊維基材を複数枚積層した積層体を、互いに対向する第1の型、第2の型から構成される賦形型で加熱を介して所定形状に賦形することにより、RTM成形に用いるプリフォームを製造する装置であって、第1の型のみに加熱機構を設けるとともに、第2の型の少なくとも前記強化繊維基材と接触する接触面が第1の型より熱伝導率の低い材料で形成されていることを特徴とするプリフォームの製造装置。
- 前記接触面が、熱伝導率が0.01W/m・K以上かつ10W/m・K以下の材料で形成されている、請求項1に記載のプリフォームの製造装置。
- 前記接触面が、少なくとも5mmの厚さを持つ非金属材料で形成されている、請求項1または2に記載のプリフォームの製造装置。
- 第1の型が、金属材料で形成されている、請求項1~3のいずれかに記載のプリフォームの製造装置。
- 第2の型が、分割型からなる、請求項1~4のいずれかに記載のプリフォームの製造装置。
- 前記固着材のガラス転移温度が50~80℃の範囲にある、請求項1~5のいずれかに記載のプリフォームの製造装置。
- 前記強化繊維基材が、炭素繊維基材からなる、請求項1~6のいずれかに記載のプリフォームの製造装置。
- 熱可塑性樹脂を主成分とする固着材を付着させた強化繊維基材を複数枚積層した積層体を、互いに対向する第1の型、第2の型から構成される賦形型によりプレスにより所定形状に賦形するとともに、加熱により強化繊維基材間に存在する前記固着材を溶融させ、溶融後に冷却することにより前記固着材を固化させ強化繊維基材同士を接着させて賦形形状を保持する、RTM成形に用いるプリフォームを製造する方法であって、前記加熱において、第1の型からのみ加熱するとともに、第2の型の少なくとも前記強化繊維基材と接触する接触面を第1の型より熱伝導率の低い材料で形成して第2の型側への熱伝導を抑えることを特徴とするプリフォームの製造方法。
- 前記接触面が、熱伝導率が0.01W/m・K以上かつ10W/m・K以下の材料で形成されている、請求項8に記載のプリフォームの製造方法。
- 前記接触面が、少なくとも5mmの厚さを持つ非金属材料で形成されている、請求項8または9に記載のプリフォームの製造方法。
- 第1の型が、金属材料で形成されている、請求項8~10のいずれかに記載のプリフォームの製造方法。
- 前記他方の型が、分割型から構成されている、請求項8~11のいずれかに記載のプリフォームの製造方法。
- 前記固着材のガラス転移温度が50~80℃の範囲にある、請求項8~12のいずれかに記載のプリフォームの製造装置。
- 前記冷却において、前記積層体をプレスした状態のまま冷却を行う、請求項8~13のいずれかに記載のプリフォームの製造方法。
- 前記強化繊維基材が、炭素繊維基材からなる、請求項8~14のいずれかに記載のプリフォームの製造方法。
- 熱可塑性樹脂を主成分とする固着材を付着させた強化繊維基材を複数枚積層した積層体を、互いに対向する第1の型、第2の型から構成される賦形型によりプレスにより所定形状に賦形するとともに、加熱により強化繊維基材間に存在する前記固着材を溶融させ、溶融後に冷却することにより前記固着材を固化させ強化繊維基材同士を接着させて賦形形状を保持し、前記加熱において、第1の型からのみ加熱するとともに、第2の型の少なくとも前記強化繊維基材と接触する接触面を第1の型より熱伝導率の低い材料で形成して第2の型側への熱伝導を抑えることにより製造され、RTM成形に用いられることを特徴とするプリフォーム。
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CN201280004519.6A CN103298593B (zh) | 2011-02-24 | 2012-02-14 | 预成型体的制造装置及制造方法以及通过该方法制造的预成型体 |
KR1020137023923A KR101932783B1 (ko) | 2011-02-24 | 2012-02-14 | 프리폼의 제조 장치 및 제조 방법, 및 이 방법에 의해 제조된 프리폼 |
US14/001,262 US20130328243A1 (en) | 2011-02-24 | 2012-02-14 | Manufacturing apparatus and methods of manufacturing preforms, and preforms manufactured by same method |
JP2012511078A JP5733306B2 (ja) | 2011-02-24 | 2012-02-14 | プリフォームの製造装置および製造方法 |
EP12749542.2A EP2679366B1 (en) | 2011-02-24 | 2012-02-14 | Preform fabrication method |
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EP (1) | EP2679366B1 (ja) |
JP (1) | JP5733306B2 (ja) |
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Cited By (2)
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FR2999970A1 (fr) * | 2012-12-20 | 2014-06-27 | Airbus Operations Sas | Procede de realisation d'une preforme textile a fibres continues par circulation d'un flux de gaz chaud a travers un ensemble fibreux |
US10105938B2 (en) | 2012-05-29 | 2018-10-23 | Airbus Operations (S.A.S.) | Self-stiffened composite panel and method of producing same |
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MX2016013715A (es) | 2015-10-23 | 2017-12-20 | Wabash National Lp | Moldes extruidos y metodos para fabricar paneles de camion compuestos. |
KR102207477B1 (ko) * | 2018-09-05 | 2021-01-26 | 재단법인 한국탄소융합기술원 | 프리폼 성형장치 |
KR20200050521A (ko) * | 2018-11-02 | 2020-05-12 | 코오롱데크컴퍼지트 주식회사 | 프리폼 제조방법 및 프리폼을 이용한 복합재 제조 방법 |
US10987831B2 (en) * | 2019-05-24 | 2021-04-27 | The Boeing Company | Dies for forming a part and associated systems and methods |
JP7130060B2 (ja) * | 2019-12-20 | 2022-09-02 | 株式会社アシックス | シューアッパーの製造方法 |
DE102020203786A1 (de) * | 2020-03-24 | 2021-09-30 | Volkswagen Aktiengesellschaft | Verfahren zum Herstellen eines Kühlkörpers für ein elektronisches Bauteil |
EP4410528A1 (en) * | 2023-01-31 | 2024-08-07 | Airbus Operations GmbH | Apparatus and method for producing a fibre reinforced composite part |
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- 2012-02-14 US US14/001,262 patent/US20130328243A1/en not_active Abandoned
- 2012-02-14 EP EP12749542.2A patent/EP2679366B1/en active Active
- 2012-02-14 WO PCT/JP2012/053346 patent/WO2012114933A1/ja active Application Filing
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US10105938B2 (en) | 2012-05-29 | 2018-10-23 | Airbus Operations (S.A.S.) | Self-stiffened composite panel and method of producing same |
FR2999970A1 (fr) * | 2012-12-20 | 2014-06-27 | Airbus Operations Sas | Procede de realisation d'une preforme textile a fibres continues par circulation d'un flux de gaz chaud a travers un ensemble fibreux |
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Also Published As
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US20130328243A1 (en) | 2013-12-12 |
EP2679366A4 (en) | 2017-01-25 |
CN103298593A (zh) | 2013-09-11 |
KR20140006023A (ko) | 2014-01-15 |
JPWO2012114933A1 (ja) | 2014-07-07 |
JP5733306B2 (ja) | 2015-06-10 |
EP2679366A1 (en) | 2014-01-01 |
KR101932783B1 (ko) | 2018-12-27 |
EP2679366B1 (en) | 2018-04-04 |
CN103298593B (zh) | 2016-01-27 |
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