JPH01242219A - Molding method for fiber reinforced resin molded product - Google Patents
Molding method for fiber reinforced resin molded productInfo
- Publication number
- JPH01242219A JPH01242219A JP63071001A JP7100188A JPH01242219A JP H01242219 A JPH01242219 A JP H01242219A JP 63071001 A JP63071001 A JP 63071001A JP 7100188 A JP7100188 A JP 7100188A JP H01242219 A JPH01242219 A JP H01242219A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- cavity
- injection
- mold
- gate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 52
- 239000011347 resin Substances 0.000 title claims abstract description 52
- 239000000835 fiber Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 12
- 238000000465 moulding Methods 0.000 title claims description 10
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 13
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 description 8
- 239000004925 Acrylic resin Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/90—Measuring, controlling or regulating
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/001—Shaping in several steps
Abstract
Description
【発明の詳細な説明】
Ｆ＆業上の利用分野］
この発明は金型のギトビテイに繊維クロス、マットなど
をインサートし、そのキャビティに樹脂を加圧注入して
、繊維強化樹脂成形品を成形する方法に関するものであ
る。[Detailed Description of the Invention] Field of Application in F & Industry] This invention involves inserting fiber cloth, mat, etc. into the tightness of a mold, and injecting resin under pressure into the cavity to mold a fiber-reinforced resin molded product. It is about the method.
〔従来の技術］
一般にこの種の成形方法は、一対の合わせ型のいずれか
一方の型面に添わせて、ガラス繊維、打機繊維、黒磯繊
維などによるクロスやマットをインサートし、型を閉じ
て型締を行なったのら、キャビティを減圧し、その状態
を保ちながら樹脂を加圧注入している。この成形に用い
られる樹脂は、硬化剤を予め配合したポリエステル樹脂
、ポリウレタン樹脂、エポキシ樹ｌ１１１、エポキシ・
アクリレート樹脂、不飽和アクリレート樹脂等の未硬化
熱硬化性樹脂液で、注入後に硬化して繊維強化樹脂成形
品となる。[Prior art] Generally, this type of molding method involves inserting a cloth or mat made of glass fiber, percussion fiber, Kuroiso fiber, etc. along the mold surface of one of a pair of mating molds, and then closing the mold. After the mold is clamped, the pressure in the cavity is reduced and resin is injected under pressure while maintaining this state. The resins used for this molding are polyester resin pre-blended with a hardening agent, polyurethane resin, epoxy resin l111, and epoxy resin.
An uncured thermosetting resin liquid such as acrylate resin or unsaturated acrylate resin, which hardens after injection to become a fiber-reinforced resin molded product.
し発明が解決しようとする課題１
上記従来法では、加圧力と減圧によるキＰビフイ内の吸
引力とにより、繊維間へのＰＡ脂の浸透と脱泡とを行な
っているのであるが、繊維の間は樹脂が流れガいため、
キトビディに注入され／Ｊ什（脂は、繊維クロス等ど：
ｌ： ｐごｊ−イ檗との間や、（＾囮された繊維クロス
等の間隙など、流動抵抗の少ない空間を流れ、それらの
空間を埋め（から、繊維クロス等に浸透して行く。Problem to be Solved by the Invention 1 In the above conventional method, the PA fat penetrates between the fibers and is defoamed using the suction force within the KiP bifi due to pressurizing force and reduced pressure. Because the resin is difficult to flow between the
It is injected into the kitobidi/J. (fat, fiber cloth, etc.)
l: Flows through spaces with low flow resistance, such as between the walls and the gaps between the covered fiber cloth, etc., fills those spaces, and then penetrates into the fiber cloth, etc.
このため樹脂が繊維１：ｆｌを浸透しっつ−・ｈ向に流
れるように、キャビティに対しゲート位置や減ｊ［位置
を設定しても、空間を充填してのらの樹脂の浸透は、繊
維クロス等の周囲から生じるＪ−うに４ｊす、また周囲
が先に樹脂により閉ざされた繊維間の空気は、他に流出
覆る所がないため、これが抵抗となって加圧注入にＪ、
る樹脂の浸透を阻害し、浸透むらと気泡の発ＩＵ：原因
となる。For this reason, even if the gate position and the position are set relative to the cavity so that the resin penetrates the fibers 1:fl and flows in the -h direction, the resin will not penetrate into the space by filling the space. The air between the fibers, which is generated from the surroundings of the fiber cloth, etc., and the air between the fibers whose surroundings have been closed by the resin, has no other place to escape and cover, so this acts as a resistance to pressurized injection.
This inhibits the penetration of the resin, causing uneven penetration and the formation of bubbles.
木発明者等は、ｔｕｆｆ間におｔ）る樹脂の浸透につい
て種々のω１究を重ねた結宋、毛細管現象を利用して浸
透を行なうことが最し均一／、【成形品を（’−７るこ
とができることを見出したのである。Wood inventors conducted various ω1 studies on the penetration of resin between tuffs. They discovered that it is possible to do 7 things.
したがってこの発明の目的は、キャビデイに加圧注入さ
れた樹脂を毛細管現象により１！村間に均一に浸透させ
ることでき、まＩこ浸透時に繊維間の空気が流出し易く
、気泡として残存することが極めて少ない新たな成形方
法を提供することにある。Therefore, the object of this invention is to control the resin injected into the cavity under pressure by capillary action. It is an object of the present invention to provide a new molding method that allows uniform infiltration between fibers, allows air between fibers to easily flow out during the infiltration, and leaves very little air bubbles remaining.
Ｅ問題点を解決Ｊるための手段］
上記目的によるこの発明は、繊維クロス、マット等のイ
ンサートが可能な金Ａ（のキ１１ビティに、聞１３）手
段を備えた複数のゲートを所定間隔毎に設け、それらゲ
ートの開放に時間差を設定し、イの時間差により樹脂を
段階的にキャビティに加ｌ■注入するとともに、各ゲー
トにおける注入を断続的に行ない、必要に応じてはキｌ
？ビティを減圧し、または注入された樹脂に超音波振動
をｆ＝ｉ ’ｊするなどして、繊維間への樹脂の浸透を
図り、これにより従来の課題を解決してなる。[Means for Solving Problem E] The present invention according to the above object has a plurality of gates equipped with means for inserting fiber cloth, mat, etc. at predetermined intervals. The resin is injected into the cavity in stages according to the time difference, and the injection is performed intermittently at each gate, and when necessary, the resin is injected into the cavity.
? The conventional problems are solved by reducing the pressure in the pipe or subjecting the injected resin to ultrasonic vibrations f=i'j to allow the resin to penetrate between the fibers.
［作 用１
上記方法では、樹脂の加圧注入に時間差があることから
、キｔ・ビティにお【Ｊる樹脂の充填も段階的となり、
また断続的な注入によって４−ヤビティ内での樹脂の流
れにも波が生じ、それにより樹脂はキャビティ及びｍｕ
クロス等の間隙の一部を満だ１一方、毛細管現象により
繊維の隙間に侵透し、−＆；がｕＡ維ツクロスに吸収さ
れて行く。[Effect 1] In the above method, since there is a time lag in pressurized injection of resin, the filling of resin into the kit/bitty is also gradual.
The intermittent injection also creates waves in the resin flow within the four-way cavity, which causes the resin to flow into the cavity and mu.
On the other hand, it penetrates into the gaps between the fibers due to capillary action, and -&; is absorbed into the uA fiber cloth.
［実施例］
図中１は金型で、一対の合わせ型からなり、バーテング
部分にゲーｈ２ａ、２ｂ、２Ｇがキャビティ３に対し一
定の間隔を空けて設けである。[Example] In the figure, 1 denotes a mold, which is composed of a pair of mating molds, and the barten part is provided with gauges h2a, 2b, and 2G at a constant distance from the cavity 3.
この各ゲートの樹脂供給路４ａ、４ｂ、４ｃには、逆止
弁５ａ、５ｂ、５ｃと切換バルブ５ａ、５ｂ。The resin supply paths 4a, 4b, 4c of each gate are provided with check valves 5a, 5b, 5c and switching valves 5a, 5b.
６Ｃとが設置ノであり、また各リノ換バルブの操作部は
コントローラ７と接続し、信号によるソレノイドの作動
で・開閉動作するＪンうになっている。6C is the installation part, and the operation part of each reno exchange valve is connected to the controller 7, and is opened and closed by operating a solenoid in response to a signal.
上記］ントローラ７は充填開始信号により切換バルブ６
ａが開放してから切換バルブ６ｂを開成するまでの時間
を設定するタイマー１１と、切換バルブ６ｂが開放して
から切換バルブ６Ｃを開成するまでの時間を設定づるタ
イマー−「２と、各切換バルブの注入時間を設定するタ
イマー１３と、各１．ＩＪ換バルブの注入休止ｕ、ｙ
を設定覆るタイーンーＴ４ど、全注入時間を設定寸ろタ
イマー］−５と・￥備えている。[Above] The controller 7 operates the switching valve 6 in response to the filling start signal.
A timer 11 sets the time from opening of switching valve 6b to opening of switching valve 6b, and a timer 11 sets the time from opening of switching valve 6b to opening of switching valve 6C. A timer 13 that sets the injection time of the valve, and each 1. IJ exchange valve injection pause u, y.
Set the total injection time - T4, etc., and set the total injection time - 5 and ¥.
８は長尺のイン９−１− Ｕで、第３図に示慎」、うに
、金属λヤ板の芯材９にガラス繊維クロス１０を多重に
巻き付けて偏平に形成したものからなる。Reference numeral 8 denotes a long wire 9-1-U, as shown in FIG. 3, which is formed into a flat shape by winding glass fiber cloth 10 multiple times around a core material 9 of a metal lambda sheet.
１１は樹Ｆｏ １２の供給源で、材料タンク、ペールポ
ンプ等からなる。11 is a supply source of the tree Fo 12, which consists of a material tank, a pail pump, etc.
上記インサート月８を金型１の一方の型合わせ而に添わ
せてインサートしたのら型を開じ、型締を完了すると、
注入開始信号がコントローラ７から１；７Ｊ換バルブ６
ａの操作部に発せられ、ソレノイドの作動で切換バルブ
６ａが間き、液状の樹脂１２が第１のゲ−’ｌ−２ａか
らキ１１じデイ３に加圧注入される。After inserting the above-mentioned insert 8 along with one of the mold fittings of the mold 1, open the mold and complete the mold clamping.
Injection start signal is from controller 7 to 1; 7J exchange valve 6
The switching valve 6a is opened by the operation of the solenoid, and the liquid resin 12 is injected under pressure from the first gear 1-2a to the key 11-2a.
この樹脂１２の注入【よ設定旧聞に限定され、次に第２
のゲート２ｂへ、更に第３のゲート２Ｃへと順に切換え
られて行く。また注入は各ゲー１〜とも断続的に行われ
る。This injection of resin 12 [is limited to the previous setting, and then the second
gate 2b, and then to the third gate 2c. Further, the injection is performed intermittently for each game 1 to 1.
第４図はＺ１人作動のターｒミングチＸ・−１〜を承り
もので、Ｊ、ヂタイ”／−Ｔ１、−Ｔ３、Ｔ５とがシー
−（Ｖ７を聞々（ｉづる。切換パル・プロａはタイマ〜
Ｔ３にＪ、り予め設定された時間Ｔ、だｔ〕聞かれて、
第１のゲ
ート
イマーＴ４にＪ、り時間下、だけ切換バルブ６ａを閉じ
て注入を休止する。このｔ４［人と休止は、１を人開始
と同時に８１時を開始した上記タイマー１がタイムアツ
プして、切換バルー１６ ａが閉１’ｌ’ ！！’ＪＪ
Ｕるよで繰返し行なわれ、タイムアツプにより第１の
ゲート２ａからの１１人は完了する。Figure 4 shows a terminal operated by one person. is a timer~
T3 is asked for a preset time T.
The injection is stopped by closing the switching valve 6a for a period of time J at the first gate timer T4. When the timer 1 starts at 81:00, the timer 1 times up, and the switching valve 16a closes 1'l'! ! 'JJ
This process is repeated in the U direction, and due to time-up, the 11 people from the first gate 2a are completed.
次にタイマー■２が計時を開始し、切換バルブ６ｂが開
かれて注入は第２のゲート２ｂに切換ねる。ここにおい
てもタイマーＴ、Ｔ４にＪ：すｚ１人と休止が繰返し行
なわれ、上記タイマー］−２がタイムアツプしたとぎに
、切換バルブ６Ｃが聞かれて注入は第３のゲート２Ｃに
切換わる。この第３のグー１〜２Ｇの注入は上記タイマ
ーＴ５のタイムアラにより完了し、キ１１ビディ３への
樹脂の１１人の全てが完了する。そして樹脂１２はイン
慟ナート材８とともに次の工程で圧縮される。Next, the timer 2 starts counting, the switching valve 6b is opened, and the injection is switched to the second gate 2b. In this case as well, the timers T and T4 are repeatedly paused, and when the timer ]-2 times out, the switching valve 6C is activated and the injection is switched to the third gate 2C. The injection of the third goo 1 to 2G is completed by the timer T5, and all 11 resins into the 11 bidi 3 are completed. The resin 12 is then compressed together with the inert material 8 in the next step.
上記注入工程において、各ゲートの注入切ＩＩＩ！＋よ
、第１図に鎖線で承りように、ギトビティ内に注入され
た樹脂１２の流仙喘１２ａが、次のゲート付近に達した
時に行なうのがよく、これによりギャビディ内各部の注
入速瓜、注入圧力を平均化することができる。In the above injection process, the injection of each gate is cut off III! +, as shown by the chain line in Figure 1, it is best to do this when the flow 12a of the resin 12 injected into the Gibity reaches the vicinity of the next gate. , the injection pressure can be averaged.
またインサート材８の繊維クロス１０の組成状態によっ
ては、キャビティ３を減圧し、吸引作用の下に樹脂を加
圧注入するか、またはキャピテイ内の樹脂に超音波振動
を与えて浸透を更に促進してもよい。Depending on the composition of the fiber cloth 10 of the insert material 8, the cavity 3 may be depressurized and the resin may be injected under pressure under suction action, or ultrasonic vibration may be applied to the resin within the cavity to further promote penetration. You can.
なお、ゲートの開閉は切換バルブに代えてシャットオフ
バルブを使用してもよい。Note that a shutoff valve may be used instead of the switching valve to open and close the gate.
［発明の効宋１
この発明は上述のように、繊維クロス、マツｌ−等のイ
ンサート材を金型のキャビデイにインサートし、そのキ
ャビティに樹脂を加圧注入して、Ｖ＆帷強化樹脂成形品
を成形するにあたり、上記−Ｖ１νビティに１；ｌ閉手
段を備えた複数のゲートを所定間隔毎に設け、それらゲ
ートの開放に時間差を設定し、その時間差により樹脂を
段階的にキャビティに加圧注入することから、キャビテ
ィをシャッタ一部材等により一々区画しなくとも、キャ
ビティ内に樹脂を部分的に充填して行くことができる。[Effects of the Invention Song 1 As described above, this invention involves inserting an insert material such as fiber cloth or pine l- into the cavity of a mold, and injecting resin into the cavity under pressure to produce a V&W reinforced resin molded product. In molding, a plurality of gates equipped with 1;l closing means are provided at predetermined intervals in the -V1ν bit, a time difference is set for the opening of these gates, and the resin is pressurized into the cavity in stages according to the time difference. Since the resin is injected, the resin can be partially filled into the cavity without having to partition each cavity with a shutter member or the like.
また各ゲートにお番プる注入を衛続的に行なうため、部
分充填と同時に繊維間への樹脂の浸透も毛細管現象によ
って自然に生じ、加圧の下に浸透を強制的に行なう場合
よりも浸透がよく、浸透に伴うｍＨ１間の空気の流出も
キャビティ空間によってスムーズに行なわれるので、未
浸透部分が生じ難く、密瓜も均等化して強度の優れた繊
維強化樹脂成形品が得られるなどの特長を有する。In addition, since the injection is carried out hygienically at each gate, the penetration of the resin between the fibers occurs naturally due to capillary action at the same time as partial filling, which is better than when penetration is forced under pressure. Penetration is good, and the outflow of air between mH1 due to penetration is carried out smoothly by the cavity space, so unpenetrated areas are less likely to occur, the honey melon is evenly distributed, and a fiber-reinforced resin molded product with excellent strength can be obtained. It has characteristics.
図面番ユこの発明に係る繊組強化樹脂成形品の成形方法
の実施例を示すもので、第１図及び第２図は■程説明図
、第３図ｔまイン嘔ナート祠の略示断面図、第４図ｔよ
注入タイミノグチ１／−１図である。
１・・・・・・・・・金型 ３・・・・・
・・・・キャビティ２ａ、２ｂ、２ｃ・・・・・・グー
１〜５ａ、５ｂ、５Ｇ・・・・・・逆止弁
６ ａ 、 ６ ｂ 、 ６ Ｃ−−−−−−ＦＪＪ換
バルブ７・・・・・・コントローラー ８・・・・
・・インリート材９・・・・・・芯材
１ｏ・・・・・・ｕＡｇクロス１２・・・・・・樹脂
Ｔ 、Ｔ 、Ｔ３ 、 Ｔ４ 、 Ｔ５・・・・・
・タイマー特許出願人 日精樹脂工業株式会社外１
名
１ 第１図
第３図Drawing numbers show examples of the method for molding fiber-reinforced resin molded products according to the present invention, and FIGS. 1 and 2 are explanatory views of the process, and FIG. Fig. 4 is a 1/-1 diagram of injection timing. 1...Mold 3...
...Cavity 2a, 2b, 2c...Goo 1 to 5a, 5b, 5G...Check valve 6a, 6b, 6C---FJJ exchange valve 7... Controller 8...
... Inleat material 9 ... Core material
1o...uAg cloth 12...Resin T, T, T3, T4, T5...
・Timer patent applicant Nissei Jushi Kogyo Co., Ltd. 1
Name 1 Figure 1 Figure 3
Claims (3)
ャビティにインサートし、そのキャビティに樹脂を加圧
注入して、繊維強化樹脂成形品を成形するにあたり、上
記キャビティに開閉手段を備えた複数のゲートを所定間
隔毎に設け、それらゲートの開放に時間差を設定し、そ
の時間差により樹脂を段階的にキャビティに加圧注入す
るとともに、各ゲートにおける注入を断続的に行なうこ
とを特徴とする繊維強化樹脂成形品の成形方法。(1) When molding a fiber-reinforced resin molded product by inserting an insert material such as fiber cloth or mat into a cavity of a mold and injecting resin into the cavity under pressure, a plurality of inserts equipped with an opening/closing means in the cavity Gates are provided at predetermined intervals, a time difference is set for the opening of these gates, and resin is injected under pressure into the cavity in stages according to the time difference, and injection at each gate is performed intermittently. Molding method for reinforced resin molded products.
載の繊維強化樹脂成形品の成形方法。(2) The method for molding a fiber-reinforced resin molded product according to item 1, wherein the pressure in the mold cavity is reduced in advance.
される第１項記載の繊維強化樹脂成形品の成形方法。(3) The method for molding a fiber-reinforced resin molded article according to item 1, wherein ultrasonic vibrations are applied to the resin in the cavity during injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63071001A JPH01242219A (en) | 1988-03-25 | 1988-03-25 | Molding method for fiber reinforced resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63071001A JPH01242219A (en) | 1988-03-25 | 1988-03-25 | Molding method for fiber reinforced resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01242219A true JPH01242219A (en) | 1989-09-27 |
| JPH0528965B2 JPH0528965B2 (en) | 1993-04-28 |
Family
ID=13447826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63071001A Granted JPH01242219A (en) | 1988-03-25 | 1988-03-25 | Molding method for fiber reinforced resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01242219A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938921A1 (en) * | 1998-02-26 | 1999-09-01 | Carbon Membranes Ltd. | A method for potting or casting inorganic hollow fiber membranes into tube sheets |
| JP2003039479A (en) * | 2001-08-02 | 2003-02-13 | R & D Inst Of Metals & Composites For Future Industries | Method for controlling rtm resin fluidity and device therefor |
| EP1415793A1 (en) * | 2002-11-04 | 2004-05-06 | Alcan Technology & Management Ltd. | Method of manufacturing fibre reinforced composite structural elements |
| JP2010089501A (en) * | 2008-09-11 | 2010-04-22 | Toray Ind Inc | Rtm (resin transfer molding) method |
| US8227070B2 (en) | 2009-12-25 | 2012-07-24 | Panasonic Corporation | Decorative member |
| WO2012115067A1 (en) * | 2011-02-25 | 2012-08-30 | 東レ株式会社 | Method for producing frp |
| US8415001B2 (en) | 2009-12-25 | 2013-04-09 | Panasonic Corporation | Decorative member |
| EP3075525A1 (en) * | 2015-03-31 | 2016-10-05 | Aplicator System AB | Method and apparatus for casting a fibre reinforced composite product |
| WO2019122840A3 (en) * | 2017-12-18 | 2019-09-12 | Composite Integration Limited | Improved system and method for resin transfer moulding |
| JP2021112885A (en) * | 2020-01-21 | 2021-08-05 | トヨタ自動車株式会社 | Method for manufacturing fiber-reinforced resin molded article, and manufacturing device thereof |
| WO2023175170A1 (en) * | 2022-03-18 | 2023-09-21 | Lm Wind Power A/S | In-line one-way vartm valve and infusion method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146470A (en) * | 1976-05-31 | 1977-12-06 | Matsushita Electric Works Ltd | Method of manufacture of melamine resin decorative laminate having metal leafflikf patterm |
-
1988
- 1988-03-25 JP JP63071001A patent/JPH01242219A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146470A (en) * | 1976-05-31 | 1977-12-06 | Matsushita Electric Works Ltd | Method of manufacture of melamine resin decorative laminate having metal leafflikf patterm |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6270714B1 (en) | 1998-02-26 | 2001-08-07 | Carbon Membranes Ltd. | Method for potting or casting inorganic hollow fiber membranes into tube sheets |
| EP0938921A1 (en) * | 1998-02-26 | 1999-09-01 | Carbon Membranes Ltd. | A method for potting or casting inorganic hollow fiber membranes into tube sheets |
| JP2003039479A (en) * | 2001-08-02 | 2003-02-13 | R & D Inst Of Metals & Composites For Future Industries | Method for controlling rtm resin fluidity and device therefor |
| EP1415793A1 (en) * | 2002-11-04 | 2004-05-06 | Alcan Technology & Management Ltd. | Method of manufacturing fibre reinforced composite structural elements |
| JP2010089501A (en) * | 2008-09-11 | 2010-04-22 | Toray Ind Inc | Rtm (resin transfer molding) method |
| US8415001B2 (en) | 2009-12-25 | 2013-04-09 | Panasonic Corporation | Decorative member |
| US8227070B2 (en) | 2009-12-25 | 2012-07-24 | Panasonic Corporation | Decorative member |
| JP5812438B2 (en) * | 2011-02-25 | 2015-11-11 | 東レ株式会社 | Manufacturing method of FRP |
| WO2012115067A1 (en) * | 2011-02-25 | 2012-08-30 | 東レ株式会社 | Method for producing frp |
| US9604415B2 (en) | 2011-02-25 | 2017-03-28 | Toray Industries, Inc. | Method for producing FRP |
| US9950479B2 (en) | 2011-02-25 | 2018-04-24 | Toray Industries, Inc. | Method for producing FRP |
| EP3075525A1 (en) * | 2015-03-31 | 2016-10-05 | Aplicator System AB | Method and apparatus for casting a fibre reinforced composite product |
| WO2016156224A1 (en) * | 2015-03-31 | 2016-10-06 | Aplicator System Ab | Method and apparatus for casting a fibre reinforced composite product |
| WO2019122840A3 (en) * | 2017-12-18 | 2019-09-12 | Composite Integration Limited | Improved system and method for resin transfer moulding |
| JP2021112885A (en) * | 2020-01-21 | 2021-08-05 | トヨタ自動車株式会社 | Method for manufacturing fiber-reinforced resin molded article, and manufacturing device thereof |
| US11491746B2 (en) | 2020-01-21 | 2022-11-08 | Toyota Jidosha Kabushiki Kaisha | Method for manufacturing fiber reinforced resin molded article, and manufacturing device thereof |
| WO2023175170A1 (en) * | 2022-03-18 | 2023-09-21 | Lm Wind Power A/S | In-line one-way vartm valve and infusion method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528965B2 (en) | 1993-04-28 |
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