JP3433866B2 - Manufacturing method of fiber reinforced resin cable - Google Patents
Manufacturing method of fiber reinforced resin cableInfo
- Publication number
- JP3433866B2 JP3433866B2 JP18438795A JP18438795A JP3433866B2 JP 3433866 B2 JP3433866 B2 JP 3433866B2 JP 18438795 A JP18438795 A JP 18438795A JP 18438795 A JP18438795 A JP 18438795A JP 3433866 B2 JP3433866 B2 JP 3433866B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- fiber reinforced
- cable
- twisting
- heat treatment
- 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.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/12—Making ropes or cables from special materials or of particular form of low twist or low tension by processes comprising setting or straightening treatments
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2042—Strands characterised by a coating
- D07B2201/2044—Strands characterised by a coating comprising polymers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2046—Strands comprising fillers
Landscapes
- Ropes Or Cables (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、線状繊維強化樹脂
からなるケーブルの製造方法の改良に関する。
【０００２】
【従来の技術】本発明者等は、先に特願平６−１８２６
３２号にて、実質的に無撚の強化繊維糸条に樹脂を含浸
したのち、仮撚を付与しながら加撚側で樹脂の軟化と硬
化を行って得た円形断面を有する線状繊維強化樹脂（素
線）を複数本引揃え、加撚しながら引き取ることにより
繊維強化樹脂ケーブルを製造する方法を提案した。この
方法によれば、円形断面を有する素線からなる繊維強化
樹脂ケーブル（以下ＦＲＰケーブルという場合がある）
を効率的に製造することができる。
【０００３】
【発明が解決しようとする課題】しかしながら、上記方
法では、得られるＦＲＰケーブルの各素線間の残留トル
クに差があるので、引き取られたＦＲＰケーブルを熱処
理して残留トルクを消去し安定化しなければならず、し
かもこの熱処理時に素線間の長さに差が生じてケーブル
性能に悪影響をもたらすことが判明した。本発明は、か
かる従来の問題点を解消し、素線の残留トルクを有効に
消去して性能の優れたＦＲＰケーブルを製造することを
課題とする。
【０００４】
【課題を解決するための手段】上記課題は、実質的に無
撚の強化繊維糸条に樹脂を含浸した後、仮撚を付与しな
がら加撚側で樹脂の軟化と硬化を行って得た線状繊維強
化樹脂を複数本引揃えて加撚しながら引き取る際、加撚
中に熱処理を施して各線状繊維強化樹脂の残留トルクを
消去することを特徴とする繊維強化樹脂ケーブルの製造
方法によって解決される。
【０００５】
【発明の実施の形態】以下図に従って説明すると、図１
は本発明のＦＲＰケーブルの製造に使用する装置の一例
を示す平面図で、同図において、複数本の強化繊維糸条
１は樹脂含浸槽２、ダイス３、および加熱炉４を経て仮
撚装置５に別々に導かれ、それぞれ同一条件の仮撚数が
与えられる。得られた無撚であり撚トルクを有する複数
の線状ＦＲＰ（素線）６はガイド７で相対位置を制御さ
れた上で加撚巻取装置９により巻取られる。この時、加
撚巻取装置９は矢印Ａの方向に回転することによって加
撚を行うと同時に矢印Ｂの方向に回転することによって
ＦＲＰケーブルを巻取る。
【０００６】このようにして得られるＦＲＰケーブルを
構成する各素線には残留トルクが存在し、且つ各素線間
の残留トルクに差があるので、該ＦＲＰケーブルを熱処
理して残留トルクを消去すると素線間の長さに差が生じ
てケーブル性能に悪影響をもたらすことになる。そこで
本発明は、加撚巻取装置９の前に設けた熱処理装置８に
より加撚中のＦＲＰケーブルに熱処理を施して残留トル
クを消去することにより、加撚巻取後の熱処理による上
記問題を解決したのである。
【０００７】
【実施例】以下実施例により本発明を更に具体的に説明
する。
【０００８】（実施例１）図１に示した装置を用い、直
径７〜８μの炭素繊維４８０００本からなる実質的に無
撚の炭素繊維トウ７本を樹脂含浸槽に導いて１３０℃硬
化型エポキシ樹脂を含浸させ、孔径１．９３ｍｍのダイ
スを通して樹脂含有率を約３０％に定量化し、引き続き
加熱炉及び仮撚装置を通して１０Ｔ／ｍの仮撚を付与し
ながら加熱炉中で樹脂を硬化させ、次いで１５０℃に設
定した長さ２ｍの熱処理装置により熱処理しつつ加撚巻
取装置を矢印Ａ方向に１分間当たり９回転させて加撚
し、２ｍ／分の速度で巻き取った。得られたＦＲＰケー
ブルは直径約６ｍｍ、撚数４．５Ｔ／ｍで撚が安定し、
引張強度は３１０ｋｇ／ｍｍ2であった。
【０００９】（比較例１）熱処理を施さない以外は実施
例１と同様にして製造したＦＲＰケーブルは、撚が不安
定で引張強度は３０２ｋｇ／ｍｍ2であった。
【００１０】（比較例２）加撚中に熱処理を行わず、加
撚巻き取った後に実施例１の熱処理と同じ条件の熱処理
を行って得たＦＲＰケーブルの引張強度は２８７ｋｇ／
ｍｍ2であった。
【００１１】
【発明の効果】本発明によれば、加撚中に熱処理してケ
ーブルを構成する各素線の残留トルクを消去することに
より、撚が安定した性能の優れたＦＲＰケーブルを簡易
に得ることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for manufacturing a cable made of a linear fiber reinforced resin. 2. Description of the Related Art The inventors of the present invention have previously reported Japanese Patent Application No. Hei 6-1826.
In No. 32, a linear fiber reinforcement having a circular cross section obtained by impregnating a resin into a substantially non-twisted reinforcing fiber yarn and then softening and curing the resin on the twisting side while applying false twisting A method for producing a fiber reinforced resin cable by drawing and aligning a plurality of resins (element wires) and twisting them together was proposed. According to this method, a fiber-reinforced resin cable composed of a strand having a circular cross section (hereinafter sometimes referred to as an FRP cable)
Can be manufactured efficiently. [0003] However, in the above method, since there is a difference in the residual torque between the strands of the obtained FRP cable, the taken-out FRP cable is heat-treated to eliminate the residual torque. It has been found that it is necessary to stabilize, and at the same time, a difference occurs in the length between the wires during the heat treatment, which adversely affects the cable performance. SUMMARY OF THE INVENTION It is an object of the present invention to solve the conventional problem and to manufacture an FRP cable having excellent performance by effectively eliminating the residual torque of a strand. [0004] The above object is achieved by impregnating a substantially non-twisted reinforcing fiber yarn with a resin and then softening and curing the resin on the twisting side while applying false twist. When a plurality of linear fiber reinforced resins obtained as described above are aligned and twisted and taken off, heat treatment is performed during twisting to eliminate residual torque of each linear fiber reinforced resin. It is solved by a manufacturing method. BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a plan view showing an example of an apparatus used for manufacturing the FRP cable of the present invention. In the figure, a plurality of reinforcing fiber yarns 1 are passed through a resin impregnation tank 2, a die 3, and a heating furnace 4, and are subjected to false twisting. 5 are given separately, and the number of false twists under the same conditions is given to each. A plurality of obtained non-twisted linear FRPs (strands) 6 having a twisting torque are wound by a twist winding device 9 after their relative positions are controlled by guides 7. At this time, the twist winding device 9 twists by rotating in the direction of arrow A, and winds the FRP cable by rotating in the direction of arrow B. [0006] Residual torque exists in each of the wires constituting the FRP cable thus obtained, and there is a difference in the residual torque between the wires. Therefore, the FRP cable is heat-treated to eliminate the residual torque. Then, a difference occurs between the lengths of the wires, which adversely affects the cable performance. Therefore, the present invention solves the above-mentioned problem caused by the heat treatment after twisting and winding by performing a heat treatment on the FRP cable being twisted by the heat treatment device 8 provided before the twisting and winding device 9 to eliminate the residual torque. It was resolved. The present invention will be described more specifically with reference to the following examples. (Embodiment 1) Using the apparatus shown in FIG. 1, 7 substantially non-twisted carbon fiber tows made of 48,000 carbon fibers having a diameter of 7 to 8 μm are guided to a resin impregnation tank and cured at 130 ° C. The resin is impregnated with the epoxy resin, the resin content is quantified to about 30% through a 1.93 mm die, and the resin is cured in a heating furnace while applying a false twist of 10 T / m through a heating furnace and a false twisting device. Then, while performing heat treatment with a heat treatment device having a length of 2 m set at 150 ° C., the twist winding device was twisted by rotating 9 times per minute in the direction of arrow A and wound at a speed of 2 m / min. The obtained FRP cable has a diameter of about 6 mm and the number of twists is 4.5 T / m, and the twist is stable.
The tensile strength was 310 kg / mm 2 . (Comparative Example 1) An FRP cable manufactured in the same manner as in Example 1 except that no heat treatment was performed was unstable in twist and had a tensile strength of 302 kg / mm 2 . (Comparative Example 2) The tensile strength of the FRP cable obtained by performing the heat treatment under the same conditions as the heat treatment of Example 1 after performing the heat treatment during the twisting without performing the heat treatment during the twisting is 287 kg /.
mm 2 . According to the present invention, the heat treatment during twisting eliminates the residual torque of each of the wires constituting the cable, thereby facilitating the production of an FRP cable with stable twisting and excellent performance. Obtainable.
【図面の簡単な説明】
【図１】本発明の実施に用いる装置の一例を示す平面図
である。
【記号の説明】
１ 強化繊維糸条
２ 樹脂含浸槽
３ ダイス
４ 加熱炉
５ 仮撚装置
６ 線状ＦＲＰ（素線）
７ ガイド
８ 熱処理装置
９ 加撚巻取装置BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an example of an apparatus used for carrying out the present invention. [Explanation of symbols] 1 Reinforcing fiber yarn 2 Resin impregnation tank 3 Dice 4 Heating furnace 5 False twisting device 6 Linear FRP (elementary wire) 7 Guide 8 Heat treatment device 9 Twist winding device
フロントページの続き (56)参考文献 特開 平５−318452（ＪＰ，Ａ) 特開 平８−39680（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) D07B 1/00 - 9/00 B29C 70/00 - 70/88 Continuation of the front page (56) References JP-A-5-318452 (JP, A) JP-A-8-39680 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) D07B 1 / 00-9/00 B29C 70/00-70/88
Claims (1)
浸した後、仮撚を付与しながら加撚側で樹脂の軟化と硬
化を行って得た線状繊維強化樹脂を複数本引揃えて加撚
しながら引き取る際、加撚中に熱処理を施して各線状繊
維強化樹脂の残留トルクを消去することを特徴とする繊
維強化樹脂ケーブルの製造方法。(57) [Claim 1] A resin obtained by impregnating a substantially non-twisted reinforcing fiber yarn with a resin and then softening and curing the resin on the twisting side while applying false twist. A method for producing a fiber reinforced resin cable, comprising: performing a heat treatment during twisting to eliminate residual torque of each linear fiber reinforced resin when a plurality of linear fiber reinforced resins are aligned and twisted and pulled. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18438795A JP3433866B2 (en) | 1995-07-20 | 1995-07-20 | Manufacturing method of fiber reinforced resin cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18438795A JP3433866B2 (en) | 1995-07-20 | 1995-07-20 | Manufacturing method of fiber reinforced resin cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0931873A JPH0931873A (en) | 1997-02-04 |
| JP3433866B2 true JP3433866B2 (en) | 2003-08-04 |
Family
ID=16152298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18438795A Expired - Fee Related JP3433866B2 (en) | 1995-07-20 | 1995-07-20 | Manufacturing method of fiber reinforced resin cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3433866B2 (en) |
-
1995
- 1995-07-20 JP JP18438795A patent/JP3433866B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0931873A (en) | 1997-02-04 |
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