JPH05269865A - Manufacture of fiber reinforced resin formed article - Google Patents
Manufacture of fiber reinforced resin formed articleInfo
- Publication number
- JPH05269865A JPH05269865A JP4074008A JP7400892A JPH05269865A JP H05269865 A JPH05269865 A JP H05269865A JP 4074008 A JP4074008 A JP 4074008A JP 7400892 A JP7400892 A JP 7400892A JP H05269865 A JPH05269865 A JP H05269865A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- mandrel
- reinforced resin
- split mold
- resin
- 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.)
- Pending
Links
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、管又は管継手等の内径
寸法精度に優れ、且つ水密性を要求される繊維強化樹脂
製成形品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a fiber-reinforced resin molded article such as a pipe or a pipe joint, which is required to have excellent inner diameter dimensional accuracy and watertightness.
【０００２】[0002]
【従来の技術】従来、繊維強化樹脂製管継手体を製造す
るのに、フィラメントワインディング（ＦＷ法）が用い
られることはよく知られている。管体が直線状であれば
ＦＷ法を適用するのは比較的容易である。2. Description of the Related Art Conventionally, it is well known that filament winding (FW method) is used for manufacturing a fiber-reinforced resin pipe joint body. If the tube is straight, it is relatively easy to apply the FW method.
【０００３】しかし、Ｔ字型管継手のような直線状でな
い管体をＦＷ法により製造する場合、Ｔ字型マンドレル
の枝管部形成部及び枝管部形成部と主管部形成部との交
差部に硬化性樹脂含浸強化繊維を均一に巻き付け、耐圧
強度のある繊維強化樹脂製管継手を得るのは容易でな
い。However, when a non-linear pipe body such as a T-shaped pipe joint is manufactured by the FW method, the branch pipe portion forming portion of the T-shaped mandrel and the intersection of the branch pipe portion forming portion and the main pipe portion forming portion. It is not easy to uniformly wind the curable resin-impregnated reinforcing fiber around the part to obtain a fiber-reinforced resin pipe joint having a pressure resistance.
【０００４】そこで、例えば、Ｔ字型マンドレルに手作
業で硬化性樹脂含浸強化繊維を積層するいわゆるハンド
レアップ成形法が一般的に採用されている。Therefore, for example, a so-called hand-up molding method in which a curable resin-impregnated reinforcing fiber is manually laminated on a T-shaped mandrel is generally adopted.
【０００５】又、特開平２─９５８５３号公報に記載さ
れている如く、内型の胴部に、繊維強化熱硬化性樹脂を
巻回し、これを加熱し硬化させて成形品を成形したの
ち、内型を加熱して軟化させるとともに、内型を座屈さ
せて成形品から引き出す方法や、特開昭６４─４５６２
５号公報に記載の如く、管を成形する原型を半割型と
し、半割型に樹脂を含浸させたグラフファイバーのマッ
トを押し当て、ハンドレアップにて二つの半割樹脂成形
品を作成し、これを互いに固着して管の成形品の芯割型
片を形成し、この芯割型片上に樹脂を含浸させたガラス
繊維をワインディングする方法が提案されている。Further, as described in JP-A-2-95583, a fiber reinforced thermosetting resin is wound around an inner body and is heated and cured to form a molded article. A method of heating and softening the inner mold and buckling the inner mold to pull it out of the molded product, and JP-A-64-4562.
As described in Japanese Patent Publication No. 5, a mold for forming a tube is a half mold, and a half of the mold is pressed with a graph fiber mat impregnated with resin, and two half mold resin molded products are prepared by hand-up. There has been proposed a method in which these are fixed to each other to form a core split mold piece of a pipe molded product, and a glass fiber impregnated with a resin is wound on the core split mold piece.
【０００６】[0006]
【発明が解決しようとする課題】しかし、ハンドレアッ
プ成形法では、手作業で積層作業を行うので、成形時間
が長くなり、生産性が低く、コスト高となる。又、個人
差によりバラツキがあるので、成形品の安定性や信頼性
が低いという問題点がある。However, in the hand-up molding method, since the laminating work is performed manually, the molding time becomes long, the productivity is low, and the cost is high. In addition, since there are variations due to individual differences, there is a problem that the stability and reliability of the molded product are low.
【０００７】又、特開平２─９５８５３号公報に記載の
方法は、内型を製造するには、コスト面からブロー成形
法にて薄肉とならざるを得ない場合が多く、強化繊維を
巻回する際の張力の影響等により内径寸法精度が優れた
繊維強化樹脂製成形品を得ることが難しく、又、特開昭
６４─４５６２５号公報に記載の方法では、二つの半割
り樹脂成形品を所望の成形品の内面形状に形成すること
が難しく、内径寸法精度が優れた繊維強化樹脂製成形品
を得ることが難しいという問題点があった。Further, in the method described in Japanese Patent Application Laid-Open No. 2-95853, in order to manufacture the inner mold, the blow molding method is unavoidable in many cases because of the cost, and the reinforcing fiber is wound. It is difficult to obtain a fiber reinforced resin molded product having an excellent inner diameter dimensional accuracy due to the influence of the tension at the time of molding, and in the method described in JP-A-64-45625, two half-divided resin molded products are obtained. There is a problem that it is difficult to form the desired inner surface shape of the molded product, and it is difficult to obtain a fiber reinforced resin molded product having excellent inner diameter dimensional accuracy.
【０００８】本発明は、上記の如き従来の問題点を解消
し、内径寸法精度、水密性及び強度が優れた繊維強化樹
脂製成形品を、生産性よく、且つ安価に製造する方法を
提供することを目的としてなされたものである。The present invention solves the above-mentioned conventional problems and provides a method for producing a fiber-reinforced resin molded article having excellent inner diameter dimensional accuracy, watertightness and strength with high productivity and at low cost. It was made for that purpose.
【０００９】[0009]
【課題を解決するための手段】本発明は、マンドレルに
硬化性樹脂含浸強化繊維を巻き付け、樹脂を硬化させて
繊維強化樹脂層を形成する繊維強化樹脂製成形品の製造
方法において、マンドレルとして、割れ目が入れられて
分割可能とされた２つ割り以上の割型片からなり、それ
らの割型片の相対する位置にそれぞれ接合部材が設けら
れ、それらの接合部材同士を接合して組立て可能な構造
とされたものを用い、組み立てたマンドレルの周りに硬
化性樹脂含浸強化繊維を巻き付け、樹脂を硬化して繊維
強化樹脂層を形成してマンドレルと一体化せしめる繊維
強化樹脂製成形品の製造方法である。Means for Solving the Problems The present invention is a method for producing a fiber-reinforced resin molded article in which a curable resin-impregnated reinforcing fiber is wound around a mandrel and the resin is cured to form a fiber-reinforced resin layer. It is composed of two or more split mold pieces that have splits and can be split, and joining members are provided at the opposite positions of these split mold pieces, and these joining members can be joined together for assembly. A method of manufacturing a fiber-reinforced resin molded product in which a curable resin-impregnated reinforcing fiber is wound around an assembled mandrel using a structured structure, and the resin is cured to form a fiber-reinforced resin layer and integrated with the mandrel. Is.
【００１０】本発明において、使用する繊維としては、
特に限定されるものではないが、ガラス繊維、炭素繊維
等の無機繊維、あるいはアラミド繊維、ポリエチレンテ
レフタレート繊維（ＰＥＴ繊維）等の有機繊維等が挙げ
られ、これらの繊維からなるロービング、クロステープ
（ロービングを、例えば井桁状に織ったもので織り方や
幅は特に限定されない）が好適に用いられる。In the present invention, the fibers used are:
Examples thereof include, but are not limited to, inorganic fibers such as glass fiber and carbon fiber, organic fibers such as aramid fiber and polyethylene terephthalate fiber (PET fiber), and rovings and cross tapes (roving) made of these fibers. Is woven in a cross beam shape, and the weave and width thereof are not particularly limited) are preferably used.
【００１１】硬化性樹脂含浸強化繊維は、上記強化繊維
に硬化性樹脂が含浸されたものであり、強化繊維１００
重量部に対し、硬化性樹脂が５０〜２００重量部含浸さ
れているのが好ましい。The curable resin-impregnated reinforcing fiber is the above-mentioned reinforcing fiber impregnated with a curable resin.
It is preferable that 50 to 200 parts by weight of the curable resin is impregnated with respect to parts by weight.
【００１２】硬化性樹脂としては、従来公知の熱硬化性
樹脂及び光硬化性樹脂が使用され、熱硬化性樹脂である
不飽和ポリエステル樹脂及びエポキシ樹脂が好適に使用
される。As the curable resin, conventionally known thermosetting resins and photocurable resins are used, and unsaturated polyester resins and epoxy resins which are thermosetting resins are preferably used.
【００１３】硬化性樹脂には、必要に応じて、アエロジ
ル、ガラスバルーン、炭酸カルシウム、タルク等の充填
剤が添加されてもよく、その添加量は硬化性樹脂１００
重量部に対し、０．５〜５０重量部が好ましい。If necessary, a filler such as Aerosil, glass balloon, calcium carbonate or talc may be added to the curable resin.
0.5 to 50 parts by weight is preferable with respect to parts by weight.
【００１４】又、硬化性樹脂には、一般に硬化剤や硬化
促進剤が添加されるが、従来公知のものが使用されてよ
く、熱硬化剤としては、例えば、メチルエチルケトンパ
ーオキサイド、ベンゾイルパーオキサイド等が挙げら
れ、硬化促進剤としては、例えば、ナフテン酸コバル
ト、ナフテン酸マンガン、ジメチルアニリン等が挙げら
れる。Although a curing agent and a curing accelerator are generally added to the curable resin, conventionally known ones may be used, and examples of the heat curing agent include methyl ethyl ketone peroxide and benzoyl peroxide. Examples of the curing accelerator include cobalt naphthenate, manganese naphthenate, and dimethylaniline.
【００１５】[0015]
【作用】本発明の繊維強化樹脂製成形品の製造方法にお
いては、マンドレルとして、割れ目が入れられて分割可
能とされた２つ割り以上の割型片からなり、それらの割
型片の相対する位置にそれぞれ接合部材が設けられ、そ
れらの接合部材同士を接合して組立て可能な構造とされ
たものを用いることにより、複雑な内面形状を有するマ
ンドレルを割型片毎に成形することができ、その割型片
を接合部材同士を接合して組み立てたマンドレルは、内
径の寸法制度が優れており、組み立てたマンドレルの周
りに硬化性樹脂含浸強化繊維を巻き付け、樹脂を硬化し
て繊維強化樹脂層を形成してマンドレルと一体化せしめ
ることにより、内径寸法精度、水密性及び強度が優れた
繊維強化樹脂製成形品を、生産性よく、且つ安価に製造
することができる。[Function] In the method for producing a fiber-reinforced resin molded product of the present invention
As a mandrel, it can be split with a split.
It consists of two or more split mold pieces that are said to be Noh.
A joining member is provided at each of the opposite positions of the mold piece.
The structure is such that these joint members can be assembled together.
By using this, a machine with a complicated inner surface shape can be used.
It is possible to mold the ndrel separately for each split mold piece.
The mandrel assembled by joining the joining members together
Due to its excellent diameter dimensional system, the circumference of the assembled mandrel is
Wrap the curable resin impregnated reinforcing fiber around the
To form a fiber reinforced resin layer and integrate it with the mandrel.
As a result, the inner diameter dimensional accuracy, watertightness and strength are excellent.
Manufacture molded products made of fiber reinforced resin at high productivity and at low cost
can do.
【００１６】[0016]
【実施例】以下、本発明を実施例により、図面を参照に
しながら具体的に説明する。図１は、本発明に使用する
フィードアイの作動を示す説明図である。フィードアイ
２は、Ｔ字型マンドレル１の軸に沿うＸ軸方向の移動作
動、Ｔ字型マンドレル１に近接離反するＺ軸方向の移動
作動および上下方向のＹ軸方向の移動作動の三次元的移
動作動と、Ｔ字型マンドレル１の回転軸を含む水平面上
で回動するＶで示される回動作動および硬化性樹脂含浸
強化繊維の繰り出し方向を回転軸として回転するＵで示
される回転作動が可能とされている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings by embodiments. FIG. 1 is an explanatory view showing the operation of the feed eye used in the present invention. The feed eye 2 is a three-dimensional moving operation in the X-axis direction along the axis of the T-shaped mandrel 1, a moving operation in the Z-axis direction that moves closer to and away from the T-shaped mandrel 1, and a moving operation in the vertical Y-axis direction. The movement operation, the rotation operation indicated by V that rotates on a horizontal plane including the rotation axis of the T-shaped mandrel 1 and the rotation operation indicated by U that rotates about the payout direction of the curable resin-impregnated reinforcing fiber as the rotation axis. It is possible.
【００１７】図２は、本発明に使用するＴ字型マンドレ
ルの一例を示す斜視図、図３は図２のＴ字型マンドレル
の接合部材の接合状態を説明する斜視図である。Ｔ字型
マンドレル１は、成形時、即ち後述の如く硬化性樹脂含
浸強化繊維４を巻き付ける際の実質的回転軸を含む平面
に沿って、割れ目が入れられて２つに分割可能とされた
一対の割型片１１，１２からなる。割型片１１，１２
は、ポリ塩化ビニル樹脂製プレート等を用いて真空成形
法等にて成形した成形品であり、それぞれ、主管部１１
２，１２２の略中央部に枝管部１１３，１２３が設けら
れている。 割型片１１，１２の主管部１１２，１２２
の両端部の相対する位置間の４箇所及び枝管部１１３，
１２３の端部の相対する位置間の２箇所に、接合部１３
が設けられている。FIG. 2 is a perspective view showing an example of the T-shaped mandrel used in the present invention, and FIG. 3 is a perspective view for explaining the joining state of the joining member of the T-shaped mandrel of FIG. The T-shaped mandrel 1 has a pair of slits which can be divided into two along a plane substantially including a rotation axis when molding, that is, when the curable resin-impregnated reinforcing fiber 4 is wound as described later. It consists of split mold pieces 11 and 12. Split mold pieces 11, 12
Is a molded product molded by a vacuum molding method using a polyvinyl chloride resin plate or the like.
Branch pipe portions 113 and 123 are provided at substantially central portions of 2,122. Main pipe portions 112, 122 of split mold pieces 11, 12
Between the opposite positions of both ends of the branch pipe section 113,
At the two positions between the opposite positions of the end portion of 123, the joint portion 13
Is provided.
【００１８】接合部１３の構造を図２における１Ｃの部
分における例に取り、図３を参照して説明する。尚、１
Ｃの部分以外の接合部１３の構造は、同様であるので省
略する。図３に示す如く、一方の割型片１１の接合部材
１３１は、Ｔ字型マンドレル１の周方向の一部に切れ目
が入れられて形成された、接合部材片１３１ａ，１３１
ｂ，１３１ｃから構成されている。接合部材片１３１
ａ，１３１ｃは割型片１１の円弧面の延長線上に伸ばさ
れ、接合部材片１３１ｂは基端部において一旦外方に折
り曲げられ、屈曲部からその厚さ分に相当するだけ離れ
た部分で接合部材片１３１ａ，１３１ｃと平行をなすよ
うに折り曲げられている。The structure of the joint portion 13 will be described with reference to FIG. 3, taking the example of the portion 1C in FIG. 1
The structure of the joint portion 13 other than the portion C is the same and therefore omitted. As shown in FIG. 3, the joining member 131 of the one split mold piece 11 is formed by cutting a part of the T-shaped mandrel 1 in the circumferential direction.
b, 131c. Joining member piece 131
a and 131c are extended on the extension line of the arc surface of the split mold piece 11, and the joining member piece 131b is once bent outward at the base end portion and joined at a portion separated from the bent portion by the thickness thereof. It is bent so as to be parallel to the member pieces 131a and 131c.
【００１９】他方の割型片１１の接合部材１３２は、Ｔ
字型マンドレル１の周方向に切れ目が入れられて形成さ
れた、接合部材片１３２ａ，１３２ｂ，１３２ｃから構
成されている。接合部材片１３２ｂは割型片１２の円弧
面の延長線上に伸ばされ、接合部材片１３２ａ，１３２
ｃは基端部において一旦外方に折り曲げられ、屈曲部か
らその厚さ分に相当するだけ離れた部分で接合部材片１
３２ｂと平行をなすように折り曲げられている。The joining member 132 of the other split mold piece 11 is T
It is composed of joining member pieces 132a, 132b, 132c formed by cutting in the circumferential direction of the character-shaped mandrel 1. The joining member piece 132b is extended on the extension line of the arc surface of the split mold piece 12, and the joining member pieces 132a, 132a.
c is once bent outward at the base end, and is joined to the joint member piece 1 at a portion separated from the bent portion by the thickness thereof.
It is bent so as to be parallel to 32b.
【００２０】そして、一方の割型片１１の接合部材１３
１と他方の割型片１２の接合部材１３２とを、Ｔ字型マ
ンドレル１の周方向に近づけるようにスライドさせて、
一方の割型片１１の接合部材片１３１ａ，１３１ｃを他
方の割型片１２の接合部材片１３２ａ，１３２ｃの内面
に当接させ、一方の割型片１１の接合部材片１３１ｂを
他方の割型片１２の接合部材片１３２ｂの外面に当接さ
せて、矢印にて示すような接合状態にてＴ字型マンドレ
ル１が組み立てられる。Then, the joining member 13 of one split mold piece 11
1 and the joining member 132 of the other split mold piece 12 are slid so as to come close to the circumferential direction of the T-shaped mandrel 1,
The joining member pieces 131a and 131c of one split mold piece 11 are brought into contact with the inner surfaces of the joining member pieces 132a and 132c of the other split mold piece 12, and the joining member piece 131b of one split mold piece 11 is made into the other split mold piece. The T-shaped mandrel 1 is assembled in the joined state as indicated by the arrow by bringing it into contact with the outer surface of the joining member piece 132b of the piece 12.
【００２１】組み立てたＴ字型マンドレル１の、主管部
片１１２，１２２により主管部１Ａが形成され、枝管部
片１１３，１２３により枝管部１Ｂが形成されている。The main pipe part 112, 122 of the assembled T-shaped mandrel 1 forms the main pipe part 1A, and the branch pipe part 113, 123 forms the branch pipe part 1B.
【００２２】Ｔ字型マンドレル１の周りを、予め、強度
向上のために、樹脂含浸強化短繊維をハッドレアップ成
形により塗布後自然常温硬化させておくのが好ましい。It is preferable that the resin-impregnated reinforced short fibers are applied to the periphery of the T-shaped mandrel 1 in advance by the Hadley-up molding and then naturally-temperature-cured in order to improve the strength.
【００２３】尚、割型片１１と割型片１２との間を組み
立て時に接着剤等にて固定するか、割型片１１，１２が
合成樹脂からなる場合には、両者間を熱融着して固定す
ると好適である。The split mold piece 11 and the split mold piece 12 are fixed to each other with an adhesive or the like during assembly, or when the split mold pieces 11 and 12 are made of synthetic resin, they are heat-sealed. It is suitable to fix it.
【００２４】次に、図２及び図３に示すＴ字型マンドレ
ル１を用い、図１に示すフィードアイ２を用いて、本発
明の繊維強化樹脂製管継手を製造する一実施例を図４〜
図６を参照して説明する。第１工程として、図２に示す
如く、Ｔ字型マンドレル１を組み立てる。第２工程とし
て、図４に示す如く、Ｔ字型マンドレル１の枝管部１Ｂ
を回転軸として回転させて、枝管部１Ｂの周りに硬化性
樹脂含浸強化繊維４を巻き付ける。Next, one embodiment for producing the fiber-reinforced resin pipe joint of the present invention by using the T-shaped mandrel 1 shown in FIGS. 2 and 3 and the feed eye 2 shown in FIG. ~
This will be described with reference to FIG. As a first step, as shown in FIG. 2, a T-shaped mandrel 1 is assembled. As a second step, as shown in FIG. 4, a branch pipe portion 1B of the T-shaped mandrel 1
And the curable resin-impregnated reinforcing fiber 4 is wound around the branch pipe portion 1B.
【００２５】まず、枝管部１Ｂの端部に軸３の駆動側チ
ャック３１の頭部３１１を挿入するようにして固定す
る。Ｔ字型マンドレル１の中央部の枝管部１Ｂが設けら
れた部分とは反対の部分に枝管芯押し部３３の押付部３
３１を押し付ける。First, the head portion 311 of the drive side chuck 31 of the shaft 3 is inserted and fixed to the end portion of the branch pipe portion 1B. The pressing portion 3 of the branch pipe core pressing portion 33 is provided at a portion opposite to a portion where the branch pipe portion 1B is provided in the central portion of the T-shaped mandrel 1.
Press 31.
【００２６】次に、必要に応じて、枝管部１Ｂの周り
に、ウィーピング防止層形成用の樹脂含浸不織布を巻き
付ける。Next, if necessary, a resin-impregnated non-woven fabric for forming a weeping prevention layer is wound around the branch pipe portion 1B.
【００２７】次に、軸３を回転させて、枝管部１Ｂを回
転軸として回転させ、フィードアイ２を用い、複数本の
ガラスロービングに熱硬化性樹脂液を含浸させた硬化性
樹脂含浸強化繊維４を、枝管部１Ｂ及び主管部１Ａとの
交差部の周囲に巻き付ける。この際、まず、フープ巻き
にて巻き付け、次に、ヘリカル巻きにて巻き付け、更
に、再度フープ巻きにて巻き付ける。Next, the shaft 3 is rotated so that the branch pipe portion 1B is rotated as a rotating shaft, and a plurality of glass rovings are impregnated with a thermosetting resin liquid using the feed eye 2 to strengthen the curable resin impregnation. The fiber 4 is wound around the intersection of the branch pipe portion 1B and the main pipe portion 1A. At this time, first, the hoop winding is performed, then the helical winding is performed, and then the hoop winding is performed again.
【００２８】フィードアイ２は、枝管部１Ｂの軸に沿う
Ｘ軸方向の移動作動、上下方向のＹ軸方向の移動作動、
及び枝管部１Ｂに近接離反するＺ軸方向の移動作動の３
軸の作動を行わせる。上記の作動の他、Ｖで示される回
転作動及びＵで示される回動作動を加えた５軸の作動を
行わせてもよい。The feed eye 2 moves in the X-axis direction along the axis of the branch pipe portion 1B, moves in the vertical Y-axis direction,
And 3 of the movement operation in the Z-axis direction that moves close to and away from the branch pipe portion 1B.
Activate the axis. In addition to the above-described operation, five-axis operation including the rotational operation indicated by V and the rotational operation indicated by U may be performed.
【００２９】最後に、軸３の回転を停止し、ピンの部分
で硬化性樹脂含浸強化繊維を切断して、駆動側チャック
３１より、枝管部１Ｂの周りに硬化性樹脂含浸強化繊維
が巻き付けられたＴ字型マンドレル１を取り外す。Finally, the rotation of the shaft 3 is stopped, the curable resin-impregnated reinforcing fiber is cut at the pin portion, and the curable resin-impregnated reinforcing fiber is wound around the branch pipe portion 1B from the driving side chuck 31. Remove the T-shaped mandrel 1 that is attached.
【００３０】第３工程として、図５に示す如く、Ｔ字型
マンドレル１を、主管部１Ａを回転軸として回転させ
て、主管部１Ａ及び枝管部１Ｂとの交差部の周りに硬化
性樹脂含浸強化繊維４を巻き付ける。先ず、Ｔ字型マン
ドレル１の主管部１Ａの一端部に駆動チャック３１の頭
部３１１を挿入するようにして固定し、他端部に支持チ
ャック３２の頭部３２１を挿入するようにして固定す
る。そして、必要に応じて、主管部１Ａの略中央部の周
りにウィーピング防止用の樹脂含浸不織布を巻きつけ
る。As a third step, as shown in FIG. 5, the T-shaped mandrel 1 is rotated around the main pipe portion 1A as a rotating shaft to set a curable resin around the intersection between the main pipe portion 1A and the branch pipe portion 1B. The impregnated reinforcing fiber 4 is wound. First, the main tube portion 1A of the T-shaped mandrel 1 is fixed by inserting the head portion 311 of the driving chuck 31 into one end portion thereof and the other end portion thereof by inserting the head portion 321 of the supporting chuck 32 therein. .. Then, if necessary, a resin-impregnated non-woven fabric for weeping prevention is wound around the substantially central portion of the main pipe portion 1A.
【００３１】次に、軸３を回転して、主管部１Ａを回転
軸として回転させ、フィードアイ２を用い、複数本のガ
ラスロービングに熱硬化性樹脂液を含浸させた硬化性樹
脂含浸強化繊維４を、主管部１Ａ及び枝管部１Ｂの交差
部の周囲に巻き付ける。この際、まず、フープ巻きにて
巻き付け、次に、ヘリカル巻きにて巻き付け、更に、必
要に応じて、再度フープ巻きにて巻き付ける。Next, the shaft 3 is rotated to rotate about the main tube portion 1A as a rotating shaft, and the feed eye 2 is used to impregnate a plurality of glass rovings with a thermosetting resin liquid. 4 is wound around the intersection of the main pipe portion 1A and the branch pipe portion 1B. At this time, first, the hoop winding is performed, then the helical winding is performed, and further, if necessary, the hoop winding is performed again.
【００３２】フィードアイ２は、主管部１Ａの軸に沿う
Ｘ軸方向の移動作動、上下方向のＹ軸方向の移動作動、
及び主管部１Ａに近接離反するＺ軸方向の移動作動の３
軸の作動を行わせる。上記の作動の他、Ｖで示される回
転作動及びＵで示される回動作動を加えた５軸の作動を
行わせてもよい。The feed eye 2 moves in the X-axis direction along the axis of the main pipe portion 1A, moves in the vertical Y-axis direction,
And 3 of the movement operation in the Z-axis direction that moves close to and away from the main pipe portion 1A.
Activate the axis. In addition to the above-described operation, five-axis operation including the rotational operation indicated by V and the rotational operation indicated by U may be performed.
【００３３】最後に、ピンの部分で硬化性樹脂含浸強化
繊維４を切断して、軸３の駆動側チャック３１及び支持
側チャック３２を外し、硬化性樹脂含浸強化繊維が巻き
付けられたＴ字型マンドレル１を取り出す。Finally, the curable resin-impregnated reinforced fiber 4 is cut at the pin portion, the driving side chuck 31 and the support side chuck 32 of the shaft 3 are removed, and the T-shape in which the curable resin impregnated reinforced fiber is wound. Take out mandrel 1.
【００３４】第４工程として、図６に示す如く、Ｔ字型
マンドレル１の周りに巻き付けた硬化性樹脂含浸強化繊
維をヒーター５により加熱硬化させて、繊維強化樹脂層
を形成し、マンドレル１と一体化せしめて、Ｔ字状の繊
維強化樹脂製管継手を得る。As the fourth step, as shown in FIG. 6, the curable resin-impregnated reinforced fiber wound around the T-shaped mandrel 1 is heated and cured by the heater 5 to form a fiber reinforced resin layer, and the mandrel 1 and By integrating them, a T-shaped fiber-reinforced resin pipe joint is obtained.
【００３５】尚、上記硬化性樹脂含浸強化繊維の巻き付
ける際に、フィードアイ２の作動及び曲成マンドレル１
の回転作動をコンピューター制御するようにすれば、高
精度化、効率化されるので好ましい。When the curable resin-impregnated reinforcing fiber is wound, the feed eye 2 is actuated and the bending mandrel 1 is used.
It is preferable to control the rotation operation of the computer by means of high precision and efficiency.
【００３６】制御精度は、コンピューターで制御する場
合は問題ないが、０．１ｍｍ以上の精度があれば十分で
ある。尚、各軸のモーターには、ＡＣサーボモーターを
使用するのが好ましい。The control accuracy is not a problem when it is controlled by a computer, but an accuracy of 0.1 mm or more is sufficient. In addition, it is preferable to use an AC servo motor for the motor of each axis.
【００３７】図７は、本発明に使用するＴ字型マンドレ
ルの別の例の接合部材の接合状態を説明する斜視図であ
る。Ｔ字型マンドレル６は、一対の割型片６１，６２か
らなる。一方の割型片６１の接合部材片６１１は、割型
片６１の円弧面の延長線上に伸ばされている。FIG. 7 is a perspective view for explaining a joining state of a joining member of another example of the T-shaped mandrel used in the present invention. The T-shaped mandrel 6 is composed of a pair of split mold pieces 61 and 62. The joining member piece 611 of one split mold piece 61 is extended on the extension line of the arc surface of the split mold piece 61.
【００３８】他方の割型片６１の接合部材片６２１は、
基端部において一旦外方に折り曲げられ、屈曲部からそ
の厚さ分に相当するだけ離れた部分で割型片６２の円弧
面の延長線と平行をなすように折り曲げられている。The joining member piece 621 of the other split mold piece 61 is
The base end portion is once bent outward, and is bent so as to be parallel to the extension line of the arc surface of the split mold piece 62 at a portion separated from the bent portion by the thickness thereof.
【００３９】そして、一方の割型片６１の接合部材片６
１１と他方の割型片６２の接合部材片６２１とを、Ｔ字
型マンドレル６の周方向に近づけるようにスライドさせ
て、一方の割型片６１の接合部材片６１１を他方の割型
片６２の接合部材片６２１の内面に当接させて、矢印に
て示すような接合状態にてＴ字型マンドレル６が組み立
てられる。Then, the joining member piece 6 of one split mold piece 61.
11 and the joining member piece 621 of the other split mold piece 62 are slid so as to approach in the circumferential direction of the T-shaped mandrel 6, and the joining member piece 611 of one split mold piece 61 is moved to the other split mold piece 62. The T-shaped mandrel 6 is assembled in the joined state as indicated by the arrow by contacting the inner surface of the joining member piece 621.
【００４０】図８は、本発明に使用するＴ字型マンドレ
ルの別の例の接合部材の接合状態を説明する斜視図であ
る。Ｔ字型マンドレル７は、一対の割型片７１，７２か
らなる。割型片７１，７２の接合部材片７１１，７２１
は、基端部において一旦外方に折り曲げられ、屈曲部か
らその厚さ分に相当するだけ離れた部分で割型片７１，
７２の円弧面の延長線と平行をなすように折り曲げられ
ている。８は縦断面形状がエ字状の接続具であり、長手
方向の両側面に長溝８１が設けられ、長溝８１には、割
型片７１，７２の接合部材片７１１，７２１が嵌合可能
とされている。FIG. 8 is a perspective view for explaining the joining state of the joining member of another example of the T-shaped mandrel used in the present invention. The T-shaped mandrel 7 is composed of a pair of split mold pieces 71, 72. Joining member pieces 711, 721 of split mold pieces 71, 72
Is once bent outward at the base end, and the split mold piece 71, at a portion separated from the bent portion by the thickness thereof.
It is bent so as to be parallel to the extension line of the arc surface of 72. Reference numeral 8 is a connector having a vertical cross-section, and long grooves 81 are provided on both side surfaces in the longitudinal direction. The joining member pieces 711 and 721 of the split mold pieces 71 and 72 can be fitted into the long grooves 81. Has been done.
【００４１】そして、割型片７１，７２の接合部材片７
１１，７１２同士を、マンドレル１の周方向に近づける
ようにスライドさせて、接続具８の長溝８１に嵌合し
て、矢印にて示すような接合状態にてＴ字型マンドレル
７が組み立てられる。Then, the joining member piece 7 of the split mold pieces 71, 72
The 11, 712 are slid so as to approach each other in the circumferential direction of the mandrel 1, are fitted into the long grooves 81 of the connecting tool 8, and the T-shaped mandrel 7 is assembled in a joined state as shown by an arrow.
【００４２】図９は、本発明に使用するソケット型マン
ドレルの一例を示す斜視図、図１０は図９に示すソケッ
ト型マンドレルの接合部材の接合状態を説明する斜視図
である。ソケット型マンドレル９は、構成上の実質的対
称軸であり、且つ、硬化性樹脂含浸強化繊維を巻き付け
る際に、必要により回転させる実質的回転軸である軸を
含む平面に沿って、割れ目が入れられて２つに分割可能
とされた一対の割型片９１，９２からなる。割型片９
１，９２は、ポリ塩化ビニル樹脂製プレート等を用いて
真空成形法等にて成形した成形品である。割型片９１，
９２の両端部の相対する位置の４箇所に、それぞれ接合
部材９３が設けられている。接合部材９３の構造を図９
における９Ａの部分における例を取り、図１０を参照し
て説明する。尚、９Ａ以外の接合部材９３の構造は同様
であるので省略する。FIG. 9 is a perspective view showing an example of the socket-type mandrel used in the present invention, and FIG. 10 is a perspective view for explaining the joining state of the joining member of the socket-type mandrel shown in FIG. The socket-type mandrel 9 has a substantially symmetrical axis in terms of a structure, and a crevice is formed along a plane including an axis which is a substantial axis of rotation which is optionally rotated when the curable resin-impregnated reinforcing fiber is wound. It is composed of a pair of split mold pieces 91 and 92 which are divided into two pieces. Split mold piece 9
Reference numerals 1 and 92 are molded products molded by a vacuum molding method using a polyvinyl chloride resin plate or the like. Split mold piece 91,
Joining members 93 are provided at four opposite positions of both ends of 92, respectively. The structure of the joining member 93 is shown in FIG.
An example of the portion 9A in FIG. 10 will be taken and described with reference to FIG. Since the structure of the joining member 93 other than 9A is the same, it is omitted.
【００４３】図１０に示す如く、一方の割型片９１の接
合部材９１１は、ソケット型マンドレル９の周方向の一
部に切れ目が入れられて形成された、接合部材片９１１
ａ，９１１ｂ，９１１ｃから構成されている。接合部材
片９１１ａ，９１１ｃは割型片９１の円弧面の延長線上
に伸ばされ、接合部材片９１１ｃは基端部において一旦
外方に折り曲げられ、屈曲部からその厚さ分に相当する
だけ離れた部分で接合部材片９１１ａ，９１１ｃと平行
をなすように折り曲げられている。As shown in FIG. 10, the joining member 911 of one split mold piece 91 is formed by cutting a part of the socket type mandrel 9 in the circumferential direction.
a, 911b, 911c. The joining member pieces 911a and 911c are extended on the extension line of the arc surface of the split mold piece 91, and the joining member piece 911c is once bent outward at the base end portion, and is separated from the bent portion by an amount corresponding to the thickness thereof. The part is bent so as to be parallel to the joining member pieces 911a and 911c.
【００４４】他方の割型片９１の接合部材９１２は、ソ
ケット型マンドレル９の周方向に切れ目が入れられて形
成された、接合部材片９２１ａ，９２１ｂ，９２１ｃか
ら構成されている。接合部材片９２１ｂは割型片９２の
円弧面の延長線上に伸ばされ、接合部材片９２１ａ，９
２１ｃは基端部において一旦外方に折り曲げられ、屈曲
部からその厚さ分に相当するだけ離れた部分で接合部材
片９１１ｂと平行をなすように折り曲げられている。The joining member 912 of the other split mold piece 91 is composed of joining member pieces 921a, 921b, 921c formed by making cuts in the circumferential direction of the socket type mandrel 9. The joining member piece 921b is extended on the extension line of the circular arc surface of the split mold piece 92, and the joining member pieces 921a, 921a, 9
21c is once bent outward at the base end, and is bent so as to be parallel to the joining member piece 911b at a portion separated from the bent portion by the thickness thereof.
【００４５】そして、一方の割型片９１の接合部材９１
１と他方の割型片９２の接合部材９２１とを、ソケット
型マンドレル９の周方向に近づけるようにスライドさせ
て、一方の割型片９１の接合部材９１１ａ，９１１ｃを
他方の割型片９２の接合部材９２１ａ，９２１ｃの内面
に当接させ、一方の割型片の接合部材９１１ｂを他方の
割型片９２の接合部材９１２ｂの外面に当接させて、矢
印にて示すような接合状態にてソケット型マンドレル９
が組み立てられる。Then, the joining member 91 of one split mold piece 91
1 and the joining member 921 of the other split mold piece 92 are slid so as to approach in the circumferential direction of the socket type mandrel 9, and the joining members 911a and 911c of the one split mold piece 91 are connected to each other. The inner surfaces of the joining members 921a and 921c are brought into contact with each other, and the joining member 911b of one split mold piece is brought into contact with the outer surface of the joining member 912b of the other split mold piece 92, in a joined state as indicated by an arrow. Socket type mandrel 9
Is assembled.
【００４６】実施例１ 図２及び図３に示すＴ字型マンドレル１を用い、図１に
示すフィードアイ２を用いて、図４〜図６に示す工程に
従い、下記条件により、１５０ｍｍのＴ字型の繊維強化
樹脂製管継手（主管部：１５０ｍｍ、枝管部１５０ｍ
ｍ）を製造した。 Example 1 Using the T-shaped mandrel 1 shown in FIGS. 2 and 3, the feed eye 2 shown in FIG. 1 and the steps shown in FIGS. Type fiber reinforced resin pipe joint (main pipe: 150 mm, branch pipe 150 m
m) was produced.
【００４７】Ｔ字型マンドレル１として、２．５ｍｍの
塩化ビニル樹脂製プレート（筒中プラスチック社製：商
品名「カイダック」）を用いて、真空成形法により成形
した割型片１１，１２を、接着剤（テトラヒドロフラ
ン）を介して接合部材１３で接合して組み立てたものを
用いた。As the T-shaped mandrel 1, using a 2.5 mm vinyl chloride resin plate (manufactured by Chunchu Plastic Co., Ltd .: trade name "Kydac"), the split mold pieces 11 and 12 formed by the vacuum forming method are bonded. What was assembled by joining with the joining member 13 through the agent (tetrahydrofuran) was used.
【００４８】樹脂組成として、不飽和ポリエステル樹脂
（三井東圧社製：商品名「エスターＲ２３５）１００重
量部と、硬化剤（化薬アクゾ社製：商品名「カヤメック
Ｍ」）０．６重量部と、促進剤（コバルト６％含有）
０．５重量部との混合物を用いた。As the resin composition, 100 parts by weight of an unsaturated polyester resin (manufactured by Mitsui Toatsu Co., Ltd .: trade name "Estar R235") and 0.6 part by weight of a curing agent (manufactured by Kayaku Akzo: trade name "Kayamek M"). And accelerator (containing 6% cobalt)
A mixture with 0.5 part by weight was used.
【００４９】硬化性樹脂含浸強化繊維中の強化繊維とし
て、ガラスロービング（番手２２３０ｇ／ｋｍ）１０本
を用いた。フィードアイ２に、Ｘ，Ｙ，Ｚの３軸の作動
を行わせた。ヒーターによる樹脂の硬化は、５０℃で２
時間行った。Ten glass rovings (count 2230 g / km) were used as the reinforcing fibers in the curable resin-impregnated reinforcing fibers. The feed eye 2 was made to operate in three axes of X, Y and Z. Curing of resin by heater is 2 at 50 ℃
Went on time.
【００５０】脱型せずに、端面の仕上げのみにより、Ｔ
字型の繊維強化樹脂製管継手を得た。得られたＴ字型の
繊維強化樹脂製管継手の内径精度を測定したところ、±
０．６ｍｍであった。Without removing the mold, only by finishing the end face, T
A tube-shaped fiber-reinforced resin pipe joint was obtained. When the inner diameter accuracy of the obtained T-shaped fiber-reinforced resin pipe fitting was measured,
It was 0.6 mm.
【００５１】又、Ｔ字型の繊維強化樹脂製管継手に管を
配管して、静水圧破壊試験を行った。その結果、水漏れ
及び破壊を起こすことのない耐圧強度は、４０ｋｇ／ｃ
ｍ2以上であった。Further, a pipe was piped into a T-shaped fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the compressive strength without water leakage and destruction is 40 kg / c.
It was m 2 or more.
【００５２】尚、静水圧破壊試験は、図１１及び図１２
に示す如く、本発明により得られたＴ字型の繊維強化樹
脂製管継手１０の各管接続部１０１に、短管１０２を接
続し、短管１０２の端部をフランジ１０３にて蓋をし
て、そのフランジ１０３の一部より、静水圧を負荷する
ことにより、耐圧強度を評価した。The hydrostatic breakdown test is shown in FIGS. 11 and 12.
As shown in, a short pipe 102 is connected to each pipe connecting portion 101 of the T-shaped fiber-reinforced resin pipe joint 10 obtained by the present invention, and the end of the short pipe 102 is covered with a flange 103. Then, the hydrostatic pressure was applied to a part of the flange 103 to evaluate the pressure resistance.
【００５３】実施例２ Ｔ字型マンドレル１の代わりに、図７に示す如き接合状
態のＴ字型マンドレル６であって、割型片６１，６２間
を実施例１と同様の接着剤を介して接合したものを用い
たこと以外は、実施例１と同様にして、実施例１と同様
のＴ字型の繊維強化樹脂製管継手を得た。 Example 2 Instead of the T-shaped mandrel 1, a T-shaped mandrel 6 in a joined state as shown in FIG. 7 was used, and the same adhesive as in Example 1 was used between the split mold pieces 61 and 62. A T-shaped fiber-reinforced resin pipe joint similar to that of Example 1 was obtained in the same manner as in Example 1 except that the jointed parts were used.
【００５４】得られたＴ字型の繊維強化樹脂製管継手の
内径精度を測定したところ、±０．６ｍｍであった。
又、Ｔ字型の繊維強化樹脂製管継手に管を配管して、静
水圧破壊試験を行った。その結果、耐圧強度は、４０ｋ
ｇ／ｃｍ2 以上であった。The inner diameter accuracy of the obtained T-shaped fiber-reinforced resin pipe joint was measured and found to be ± 0.6 mm.
Further, a pipe was piped in a T-shaped fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the pressure resistance is 40k.
It was g / cm 2 or more.
【００５５】実施例３ Ｔ字型マンドレル１の代わりに、図８に示す如き接合状
態のＴ字型マンドレル７であって、割型片７１，７２及
び接続具８間を実施例１と同様の接着剤を介して接合し
たものをを用いたこと以外は、実施例１と同様にして、
実施例１と同様のＴ字型の繊維強化樹脂製管継手を得
た。 Example 3 Instead of the T-shaped mandrel 1, a T-shaped mandrel 7 in a joined state as shown in FIG. 8 was used, and the space between the split mold pieces 71 and 72 and the connecting tool 8 was the same as that of the first embodiment. In the same manner as in Example 1 except that the one bonded via an adhesive was used,
The same T-shaped fiber-reinforced resin pipe joint as in Example 1 was obtained.
【００５６】得られたＴ字型の繊維強化樹脂製管継手の
内径精度を測定したところ、±０．６ｍｍであった。
又、Ｔ字型の繊維強化樹脂製管継手に管を配管して、静
水圧破壊試験を行った。その結果、耐圧強度は、４０ｋ
ｇ／ｃｍ2 以上であった。The inner diameter accuracy of the obtained T-shaped fiber-reinforced resin pipe joint was measured and found to be ± 0.6 mm.
Further, a pipe was piped in a T-shaped fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the pressure resistance is 40k.
It was g / cm 2 or more.
【００５７】実施例４ Ｔ字型マンドレル１の代わりに、図７に示すＴ字型マン
ドレル６であって、割型片６１，６２の接合部材６１
１，６２１間を融着して接合したものを用いたこと以外
は、実施例１と同様にして、実施例１と同様のＴ字型の
繊維強化樹脂製管継手を得た。 Example 4 Instead of the T-shaped mandrel 1, a T-shaped mandrel 6 shown in FIG.
A T-shaped fiber-reinforced resin pipe joint similar to that in Example 1 was obtained in the same manner as in Example 1 except that the one obtained by fusion bonding and joining 1 and 621 was used.
【００５８】得られたＴ字型の繊維強化樹脂製管継手の
内径精度を測定したところ、±０．６ｍｍであった。
又、Ｔ字型の繊維強化樹脂製管継手に管を配管して、静
水圧破壊試験を行った。その結果、耐圧強度は、４０ｋ
ｇ／ｃｍ2 以上であった。The inner diameter accuracy of the obtained T-shaped fiber-reinforced resin pipe joint was measured and found to be ± 0.6 mm.
Further, a pipe was piped in a T-shaped fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the pressure resistance is 40k.
It was g / cm 2 or more.
【００５９】実施例５ Ｔ字型マンドレル１の代わりに、図９に示すソケット型
マンドレル９であって、割型片９１，９２の接合部材９
１１，９２１間を実施例１と同様の接着剤を介して接合
したものを用いたこと以外は、実施例１と同様にして、
１５０ｍｍのソケット型の繊維強化樹脂製管継手を得
た。 Example 5 Instead of the T-shaped mandrel 1, a socket type mandrel 9 shown in FIG.
In the same manner as in Example 1 except that the joint between 11, 921 was bonded via the same adhesive as in Example 1,
A 150 mm socket-type fiber-reinforced resin pipe joint was obtained.
【００６０】得られたソケット型の繊維強化樹脂製管継
手の内径精度を測定したところ、±０．６ｍｍであっ
た。又、ソケット型の繊維強化樹脂製管継手に管を配管
して、静水圧破壊試験を行った。その結果、耐圧強度
は、４０ｋｇ／ｃｍ2 以上であった。The inner diameter accuracy of the obtained socket-type fiber-reinforced resin pipe joint was measured and found to be ± 0.6 mm. Further, the pipe was piped into a socket type fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the pressure resistance was 40 kg / cm 2 or more.
【００６１】比較例１ Ｔ字型マンドレル１の代わりに、ブロー成形により得た
従来のマンドレルを用いたこと以外は、実施例１と同様
にして、実施例１と同様のソケット型の繊維強化樹脂製
管継手を得た。 Comparative Example 1 The same socket type fiber reinforced resin as in Example 1 was used in the same manner as in Example 1 except that the conventional mandrel obtained by blow molding was used instead of the T-shaped mandrel 1. A pipe joint was obtained.
【００６２】得られたソケット型の繊維強化樹脂製管継
手の内径精度を測定したところ、±３ｍｍであった。
又、ソケット型の繊維強化樹脂製管継手に管を配管し
て、静水圧破壊試験を行った。その結果、耐圧強度は、
４０ｋｇ／ｃｍ2 以上であった。The inner diameter accuracy of the obtained socket-type fiber-reinforced resin pipe joint was measured and found to be ± 3 mm.
Further, the pipe was piped into a socket type fiber reinforced resin pipe joint, and a hydrostatic breakdown test was conducted. As a result, the compressive strength is
It was 40 kg / cm 2 or more.
【００６３】[0063]
【発明の効果】本発明の繊維強化樹脂製管継手の製造方
法は、上記の如き構成とされているので、内径寸法精
度、水密性及び強度が優れた繊維強化樹脂製成形品を、
生産性よく、且つ安価に製造することができる。EFFECTS OF THE INVENTION The method for producing a fiber-reinforced resin pipe joint according to the present invention is configured as described above, so that a fiber-reinforced resin molded article having excellent inner diameter dimensional accuracy, watertightness and strength can be obtained.
It can be manufactured with high productivity and at low cost.
【００６４】[0064]
【図１】本発明に使用するフィードアイの作動を示す説
明図である。FIG. 1 is an explanatory diagram showing an operation of a feed eye used in the present invention.
【図２】本発明に使用するＴ字型マンドレルの一例を示
す正面図である。FIG. 2 is a front view showing an example of a T-shaped mandrel used in the present invention.
【図３】図２に示すＴ字型マンドレルの接合部材の接合
状態を説明する斜視図である。FIG. 3 is a perspective view illustrating a joining state of joining members of the T-shaped mandrel shown in FIG.
【図４】本発明の一実施例における、Ｔ字型マンドレル
の枝管部を回転軸として回転させて、その周りに硬化性
樹脂含浸強化繊維を巻き付ける状態を説明する正面図で
ある。FIG. 4 is a front view illustrating a state in which the branch pipe portion of the T-shaped mandrel is rotated about a rotation axis and the curable resin-impregnated reinforcing fiber is wound around the branch pipe portion in one embodiment of the present invention.
【図５】本発明の一実施例における、Ｔ字型マンドレル
の主管部を回転軸として回転させて、その周りに硬化性
樹脂含浸強化繊維を巻き付ける状態を説明する正面図で
ある。FIG. 5 is a front view illustrating a state in which the main tube portion of the T-shaped mandrel is rotated about the rotation axis and the curable resin-impregnated reinforced fiber is wound around the main tube portion in the embodiment of the present invention.
【図６】本発明の一実施例における、ヒーターにより、
樹脂を硬化させて繊維強化樹脂層を形成し、マンドレル
と一体化する状態を示す正面図である。FIG. 6 shows a heater according to an embodiment of the present invention.
It is a front view which shows the state which hardens resin and forms a fiber reinforced resin layer, and is integrated with a mandrel.
【図７】本発明に使用するＴ字型マンドレルの別の一例
の接合部材の接合状態を説明する斜視図である。FIG. 7 is a perspective view illustrating a joined state of a joining member of another example of the T-shaped mandrel used in the present invention.
【図８】本発明に使用するＴ字型マンドレルの別の一例
の接合部材の接合状態を説明する斜視図である。FIG. 8 is a perspective view illustrating a joined state of another joined member of the T-shaped mandrel used in the present invention.
【図９】本発明に使用するソケット型マンドレルの一例
を示す正面図である。FIG. 9 is a front view showing an example of a socket type mandrel used in the present invention.
【図１０】図９に示すソケット型マンドレルの接合部材
の接合状態を説明する斜視図である。FIG. 10 is a perspective view illustrating a joined state of a joining member of the socket type mandrel shown in FIG.
【図１１】本発明により得られたＴ字型の繊維強化樹脂
製管継手の静水圧試験を行う状態を説明する正面図であ
る。FIG. 11 is a front view illustrating a state in which a hydrostatic pressure test is performed on the T-shaped fiber-reinforced resin pipe joint obtained according to the present invention.
【図１２】本発明により得られたＴ字型の繊維強化樹脂
製管継手の静水圧試験における、接続部を示す縦断面図
である。FIG. 12 is a vertical cross-sectional view showing a connecting portion in a hydrostatic pressure test of a T-shaped fiber-reinforced resin pipe joint obtained by the present invention.
１，６，７ Ｔ字型マンドレル ２ フィードアイ ３ 軸 ４ 硬化性樹脂含浸強化繊維 ９ ソケット型マンドレル １１，１２，６１，６２，７１，７２，９１，９２ 割
型片 １３１，１３２、６１１，６２１，７１１，７２１，９
１１，９２１ 接合部材1,6,7 T-shaped mandrel 2 Feed eye 3 Axis 4 Curable resin impregnated reinforcing fiber 9 Socket type mandrel 11, 12, 61, 62, 71, 72, 91, 92 Split mold piece 131, 132, 611, 621 , 711, 721, 9
11,921 Joining member
Claims (1)
巻き付け、樹脂を硬化させて繊維強化樹脂層を形成する
繊維強化樹脂製成形品の製造方法において、マンドレル
として、割れ目が入れられて分割可能とされた２つ割り
以上の割型片からなり、それらの割型片の相対する位置
にそれぞれ接合部材が設けられ、それらの接合部材同士
を接合して組立て可能な構造とされたものを用い、組み
立てたマンドレルの周りに硬化性樹脂含浸強化繊維を巻
き付け、樹脂を硬化して繊維強化樹脂層を形成してマン
ドレルと一体化せしめることを特徴とする繊維強化樹脂
製成形品の製造方法。1. A method for producing a fiber-reinforced resin molded article, comprising winding a curable resin-impregnated reinforcing fiber around a mandrel and curing the resin to form a fiber-reinforced resin layer, wherein the mandrel is split and can be divided. Made of two or more split mold pieces, each of which is provided with a joining member at a position where the split mold pieces face each other, and the joining members are joined to each other to be assembled, A method for producing a fiber-reinforced resin molded article, characterized in that a curable resin-impregnated reinforcing fiber is wound around the assembled mandrel, and the resin is cured to form a fiber-reinforced resin layer to be integrated with the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4074008A JPH05269865A (en) | 1992-03-30 | 1992-03-30 | Manufacture of fiber reinforced resin formed article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4074008A JPH05269865A (en) | 1992-03-30 | 1992-03-30 | Manufacture of fiber reinforced resin formed article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05269865A true JPH05269865A (en) | 1993-10-19 |
Family
ID=13534628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4074008A Pending JPH05269865A (en) | 1992-03-30 | 1992-03-30 | Manufacture of fiber reinforced resin formed article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05269865A (en) |
-
1992
- 1992-03-30 JP JP4074008A patent/JPH05269865A/en active Pending
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