JPS59145118A - Manufacture of fiber reinforced resin formed product - Google Patents
Manufacture of fiber reinforced resin formed productInfo
- Publication number
- JPS59145118A JPS59145118A JP58020902A JP2090283A JPS59145118A JP S59145118 A JPS59145118 A JP S59145118A JP 58020902 A JP58020902 A JP 58020902A JP 2090283 A JP2090283 A JP 2090283A JP S59145118 A JPS59145118 A JP S59145118A
- Authority
- JP
- Japan
- Prior art keywords
- die
- resin
- fiber
- elastic
- elastic wire
- 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
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は凹凸表面を有する繊維強化樹脂成形体、例えば
棒状体の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a fiber-reinforced resin molded article, such as a rod-shaped article, having an uneven surface.
凹凸表面を有する棒状体は蔓の支持等に有用であり、か
Ｘる棒状体を押出成形により製造する場合は、引取り速
度、押出量を間歇的に変化させればその製造が可能であ
る。A rod-shaped body with an uneven surface is useful for supporting vines, etc., and when manufacturing such a rod-shaped body by extrusion molding, it is possible to manufacture it by intermittently changing the take-up speed and extrusion amount. .
ところで、繊維強化樹脂（以下、Ｆ Ｒ，Ｐと称す）棒
の製造方法として、長尺繊維を樹脂浴に通過させて樹脂
で含浸し、これ、らの樹脂含浸繊維をダイスで集合する
と共に引抜成形する、いわゆるダイス引抜連続成形法が
公知である。このダイス引抜連続成形法においては、引
取り速度を間歇的に変化させても、棒状体表面の凹凸化
はほとんど望めない。By the way, as a manufacturing method for fiber reinforced resin (hereinafter referred to as FR,P) rods, long fibers are passed through a resin bath and impregnated with resin, and these resin-impregnated fibers are collected in a die and drawn. A so-called die pultrusion continuous molding method for molding is known. In this die pultrusion continuous molding method, even if the drawing speed is changed intermittently, the surface of the rod-shaped body can hardly be expected to become uneven.
そこで、本発明はＦＲＰ棒状体等をダイス引抜連続成形
法で製造する場合、その成形体の表面に皺もしくは節状
の凹凸あるいは凹凸模様を容易に形成し得る方法を提供
することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method that can easily form wrinkles or knot-like unevenness or an uneven pattern on the surface of an FRP rod-shaped body or the like when manufactured by continuous die pultrusion molding.
すなわち、本発明に係る繊維強化樹脂成形体の製造方法
は、繊維強化樹脂体のダイスσ［抜成形において、弾性
限度内のり［張歪のもとてダイスによる引抜成形を行い
、該成形体を上記引張歪の解除により収縮させたのち、
樹脂を硬化させることを特徴とする方法である。That is, the method for producing a fiber-reinforced resin molded body according to the present invention involves performing pultrusion molding with a die using a die σ [within the elastic limit] of the fiber-reinforced resin body under tensile strain, and After shrinking by releasing the tensile strain,
This method is characterized by curing the resin.
以下、図面により本発明を説明する。The present invention will be explained below with reference to the drawings.
第１図において、１はダイスである。２．・・・はＦ
ＲＰの補強繊維となる繊維であり、ロービング、ヤーン
の他、マット、不織布、クロス等を使用でき、縦方向、
巻付の何れで用いてもよい。In FIG. 1, 1 is a die. 2. ...is F
It is a fiber that serves as a reinforcing fiber for RP, and in addition to roving, yarn, mat, nonwoven fabric, cloth, etc. can be used.
It may be used either by wrapping.
３．３・・・は樹脂浴槽である。４は弾性を有する線材
、ロービングであり、金属繊維、形状記憶合金、有機繊
維等を使用できる。５は摩擦ロールである。６は牽引機
、７はカッターである。3.3... is a resin bathtub. 4 is a wire rod or roving having elasticity, and metal fibers, shape memory alloys, organic fibers, etc. can be used. 5 is a friction roll. 6 is a traction machine, and 7 is a cutter.
本発明によって棒状体を製造するには、第１図において
、弾性線材４に牽引機６と摩擦ロール５によって弾性限
度内の所定の張力を加え、弾性線材４を所定の歪率で伸
長させ、補強用繊維２＋・・・を樹脂浴３Ｉ・・・、例
えばエポキシ樹脂浴に通し、これらの樹脂含浸繊維と上
記の張力弾性線材４をダイスｌで集合し、これらを牽引
機６によってダイスｌに通過させて棒状体に成形する。To manufacture a rod-shaped body according to the present invention, as shown in FIG. 1, a predetermined tension within the elastic limit is applied to the elastic wire 4 by a traction machine 6 and a friction roll 5, and the elastic wire 4 is stretched at a predetermined strain rate. The reinforcing fibers 2+... are passed through a resin bath 3I..., for example, an epoxy resin bath, and these resin-impregnated fibers and the above-mentioned tensile elastic wire material 4 are collected in a die l, and these are passed into the die l by a pulling machine 6. It is passed through and formed into a rod-shaped body.
この場合、第２図に示すように、張力弾性線材４は樹脂
含浸繊維群２０の内側に存在している。In this case, as shown in FIG. 2, the tensile elastic wire 4 exists inside the resin-impregnated fiber group 20.
このようにして成形された棒状体は、カッター７により
定尺切断する。この切断により、棒状体の弾性線材４は
張力から解除されて収縮しようとし、このとき、棒状体
の樹脂がまだ完全に硬化していないから棒状体が長さ方
向に収縮し、その結果、棒状体表面に皺状の凹凸が発生
する。The rod-shaped body thus formed is cut to a fixed length by a cutter 7. By this cutting, the elastic wire 4 of the rod-shaped body is released from tension and tends to contract.At this time, since the resin of the rod-shaped body has not yet completely hardened, the rod-shaped body contracts in the length direction, and as a result, the rod-shaped body Wrinkle-like unevenness occurs on the body surface.
上記において、弾性線材の断面積をＡ１、ぢ［張りヤン
グ率をＥｌ、伸び率を８１とし、又、張力解除時（定尺
切断時）での樹脂含浸繊維体の断面積をＡ２、圧縮ヤン
グ率をＥｌとすると、上記棒状体の収縮歪ε８は
である。In the above, the cross-sectional area of the elastic wire is A1, the tensile Young's modulus is El, and the elongation is 81, and the cross-sectional area of the resin-impregnated fiber when the tension is released (when cut to a regular length) is A2, and the compressed Young's modulus is A2. When the ratio is El, the shrinkage strain ε8 of the rod-shaped body is as follows.
而して、凹凸を大きくするには、５収縮歪ε０を大きく
する必要があり、このためには、弾性線材の伸び率ε１
、弾性線材の断面積又はヤング率町を大きくすればよい
。Therefore, in order to increase the unevenness, it is necessary to increase the 5-shrinkage strain ε0, and for this purpose, the elongation rate ε1 of the elastic wire must be increased.
, the cross-sectional area or Young's modulus of the elastic wire may be increased.
本発明において凹凸化は補強繊維又は樹脂の長手方向圧
縮により生じるから、第２図に示すように弾性線材４を
内層側とし、樹脂含浸補強繊維２１・・・の全てを外層
側に設けることが有効であるが、第３図に示すように弾
性線材４の一部を外層側に存在させることも可能である
。In the present invention, since the unevenness is caused by longitudinal compression of reinforcing fibers or resin, it is possible to provide the elastic wire 4 on the inner layer side and all of the resin-impregnated reinforcing fibers 21 on the outer layer side, as shown in FIG. Although effective, it is also possible to have a part of the elastic wire 4 present on the outer layer side as shown in FIG.
本発明において、弾性線材にも樹脂を含浸することがで
きる。又、補強繊維の全てに弾性線材を使用し、その繊
維の一部（内層側）を上記弾性線材として使用すること
もできる（すなわち、その繊維の一部に張力を加え、一
定の引張歪のもとてダイス成形する）。In the present invention, the elastic wire can also be impregnated with resin. It is also possible to use elastic wires for all of the reinforcing fibers and use a portion of the fibers (on the inner layer side) as the elastic wires (that is, by applying tension to a portion of the fibers, a certain tensile strain is applied). mold it with a die).
又、成形体の形状は上記した棒状体（例えば蔓のすべり
止め支持棒として使用）の他、ノくイブ（すべり止めパ
イプ）、プレート状（すべり止め床材）とすることがで
きる。In addition to the above-mentioned rod-shaped body (for example, used as a non-slip support rod for vines), the molded body can also be shaped into a nokub (non-slip pipe) or a plate (non-slip floor material).
又、上記した第１式から明らかな通り、棒状体の収縮時
、樹脂含浸繊維体の圧縮ヤング率を小とすれば、その収
縮率を大にできるから、その樹脂含浸繊維体の繊維に弾
性線材よりも熱軟化点の低いものを使用し、棒状体の収
縮時、その熱軟化点よりもやＸ低い温度にまで棒状体を
加熱することが有効である。Furthermore, as is clear from the first equation above, when the rod-like body contracts, if the compressive Young's modulus of the resin-impregnated fiber body is made small, the shrinkage rate can be increased, so that the fibers of the resin-impregnated fiber body have elasticity. It is effective to use a material with a thermal softening point lower than that of the wire, and to heat the rod to a temperature that is X lower than the thermal softening point when the rod is contracted.
本発明において含浸樹脂には熱可塑性樹脂も使用でき、
この場合、ダイスに押出機をクロスヘッド方式で連結し
、ダイスにおいて補強繊維に樹脂を含浸することができ
る。この場合の樹脂の硬化は勿論冷却固化である。In the present invention, a thermoplastic resin can also be used as the impregnating resin,
In this case, an extruder can be connected to the die in a crosshead manner, and the reinforcing fibers can be impregnated with the resin in the die. The resin in this case is of course cured by cooling.
上述した通り、本発明に係る繊維強化樹脂成形体の製造
・方法によれば、従来のダイスづ１抜成形において、成
形体の芯材に弾性線材を使用し、この弾性線材を所定の
引張歪率で伸長させるテンション付与手段を付加するだ
けで表面凹凸状の繊維強化樹脂成形体を製造でき、設備
的に有利である。As described above, according to the method for producing a fiber-reinforced resin molded article according to the present invention, an elastic wire is used as the core material of the molded article in the conventional die-cutting process, and the elastic wire is subjected to a predetermined tensile strain. A fiber-reinforced resin molded article with an uneven surface can be produced by simply adding a tension applying means for elongating at a certain rate, which is advantageous in terms of equipment.
第１図は本発明に係る繊維強化樹脂成形体の製造方法を
示す説明図、第２図は第１図における■−ｎ断面説明図
、第３図は本発明の別実施例によって得られる棒状体を
示す説明図である。
図において、１はダイス、２！・・・は繊維、３は樹脂
浴、４は弾性線材、５は摩擦ロール、６は牽づ［機であ
る。FIG. 1 is an explanatory diagram showing the method for producing a fiber-reinforced resin molded article according to the present invention, FIG. 2 is an explanatory diagram of the ■-n cross section in FIG. 1, and FIG. It is an explanatory view showing a body. In the figure, 1 is a die, 2! ... is a fiber, 3 is a resin bath, 4 is an elastic wire, 5 is a friction roll, and 6 is a pulling machine.
Claims (1)
限度内のり１張歪のもとてダイスによる引抜成形を行い
、該成形体を上記引張歪の解除により収縮させたのち、
樹脂を硬化させることを特徴と干る繊維強化樹脂成形体
の製造方法。(1) In die pultrusion molding of a fiber reinforced resin body, pultrusion molding is performed with a die under one tensile strain within the elastic limit, and after the molded body is shrunk by releasing the tensile strain,
A method for producing a dry fiber-reinforced resin molded article characterized by curing the resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58020902A JPS59145118A (en) | 1983-02-09 | 1983-02-09 | Manufacture of fiber reinforced resin formed product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58020902A JPS59145118A (en) | 1983-02-09 | 1983-02-09 | Manufacture of fiber reinforced resin formed product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59145118A true JPS59145118A (en) | 1984-08-20 |
| JPS6320697B2 JPS6320697B2 (en) | 1988-04-28 |
Family
ID=12040159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58020902A Granted JPS59145118A (en) | 1983-02-09 | 1983-02-09 | Manufacture of fiber reinforced resin formed product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59145118A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63295213A (en) * | 1987-01-30 | 1988-12-01 | エヌ・ヴイ・ベカルト・エス・エイ | Composite material for manufacturing plastic product including ribbed fiber and plastic product manufactured by using said material |
| JP2011016333A (en) * | 2009-07-10 | 2011-01-27 | Sekisui Chem Co Ltd | Method for manufacturing fiber reinforced resin molded article |
-
1983
- 1983-02-09 JP JP58020902A patent/JPS59145118A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63295213A (en) * | 1987-01-30 | 1988-12-01 | エヌ・ヴイ・ベカルト・エス・エイ | Composite material for manufacturing plastic product including ribbed fiber and plastic product manufactured by using said material |
| JP2011016333A (en) * | 2009-07-10 | 2011-01-27 | Sekisui Chem Co Ltd | Method for manufacturing fiber reinforced resin molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6320697B2 (en) | 1988-04-28 |
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