JPH0445405A - Production of frp armored optical cable - Google Patents
Production of frp armored optical cableInfo
- Publication number
- JPH0445405A JPH0445405A JP2152618A JP15261890A JPH0445405A JP H0445405 A JPH0445405 A JP H0445405A JP 2152618 A JP2152618 A JP 2152618A JP 15261890 A JP15261890 A JP 15261890A JP H0445405 A JPH0445405 A JP H0445405A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- outer periphery
- uncured
- cable
- thermosetting 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000003287 optical effect Effects 0.000 title claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 30
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims abstract description 25
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 14
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 abstract description 14
- 239000000835 fiber Substances 0.000 abstract description 7
- 239000010410 layer Substances 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 238000001723 curing Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 239000011342 resin composition Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005678 polyethylene based resin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は高い抗張力性と可撓性とを合せ持ったＦＲＰ鎧
装光ケーブルの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing an FRP armored optical cable having both high tensile strength and flexibility.
（発明の背景）
ケーブルの外周を保護強化するにあたり軽量化、非電気
誘導化等の目的で通信、導電ケーブル等の外周を複数本
の繊維強化熱硬化性樹脂（以下ＦＲＰと称す）製線条物
で被覆したいわゆる鎧装ケーブルは、特公昭５６−５０
３６４号等により公知である。(Background of the Invention) In order to protect and strengthen the outer periphery of the cable, a plurality of fiber-reinforced thermosetting resin (hereinafter referred to as FRP) filaments are used to cover the outer periphery of communication and conductive cables for the purpose of reducing weight and making them non-electrical. The so-called armored cable covered with a material was developed in the 1980s.
It is publicly known from No. 364 and the like.
一方、近年、光ファイバケーブルは、高容量性、高速通
信性から通信用ケーブルとして採用されている。On the other hand, in recent years, optical fiber cables have been adopted as communication cables due to their high capacity and high speed communication properties.
この光ファイバケーブルとしては、大容量のものは、抗
張力線の外周に高密度ポリエチレン等の熱可塑性樹脂に
よって複数の螺旋状ゝ溝を有するいわゆる螺旋スペーサ
′を使用し、この溝に光フアイバ心線あるいは光フアイ
バテープ心線を収納し、その外周を熱可塑性樹脂によっ
て被覆したものが一般的である。Large-capacity optical fiber cables use a so-called helical spacer, which has multiple spiral grooves made of thermoplastic resin such as high-density polyethylene, around the outer periphery of the tensile strength wire, and the optical fiber core is inserted into these grooves. Alternatively, it is common to have an optical fiber tape in which the outer periphery is coated with a thermoplastic resin.
また、光ファイバケーブルは、側圧、引張力などの外力
から保護するため、その外周に高強力の線状材で鎧装す
る場合は、前記光ファイバケーブルの製造に引続いて線
条物をケーブルの外周に撚合せて外層被覆を施す工程に
付される。In addition, in order to protect optical fiber cables from external forces such as lateral pressure and tensile force, if the outer periphery of the optical fiber cable is armored with a high-strength wire material, the wire material should be attached to the cable after manufacturing the optical fiber cable. The material is then twisted around the outer periphery of the material and coated with an outer layer.
そして、ＦＲＰ線状材による鎧装を施す場合は、前記公
告公報に記載されている如く、ＦＲＰのストレスクラッ
クを防止するため、未硬化状のＦＲＰの外周を熱可塑性
樹脂等で被覆し、これを用いることが提案されており、
このような未硬化状のＦＲＰ鎧装線として本出願人の先
願である特公昭５１−４３５０１号の方法による熱可塑
性樹脂被覆層を有する複合状ＦＲＰ線が好適に用いられ
る。When armoring with FRP wire material is applied, the outer periphery of the uncured FRP is coated with thermoplastic resin, etc., in order to prevent stress cracks in the FRP, as described in the above-mentioned public notice. It is proposed to use
As such an uncured FRP armored wire, a composite FRP wire having a thermoplastic resin coating layer prepared by the method disclosed in Japanese Patent Publication No. 51-43501, which is an earlier application of the present applicant, is preferably used.
しかし、従来において、未硬化状の複合状ＦＲＰ線によ
り鎧装する場合は、未硬化状の複合状ＦＲＰ線の製造と
、これをケーブルの外周に鎧装する工程とは、別々に行
なっているため、この未硬化状線材を使用するまでの貯
蔵時間を要し、可使時間いわゆるポットライフの長いも
の、例えば、常温にて３０日間程度は使用可能であるも
のが要求される。However, in the past, when sheathing with unhardened composite FRP wires, the manufacturing of the unhardened composite FRP wires and the process of sheathing them around the outer periphery of the cable were performed separately. Therefore, it takes a long time to store the uncured wire before using it, and it is required to have a long pot life, for example, one that can be used for about 30 days at room temperature.
そこで、本出願人は、この種の未硬化状線状材であって
可使時間の長い熱硬化性樹脂組成について既に特開平１
−１３９８７２号によって提案している。Therefore, the present applicant has already disclosed a thermosetting resin composition for this kind of uncured linear material having a long pot life in Japanese Patent Application Laid-Open No.
-139872.
しかし、同公開特許公報に記載された熱硬化性樹脂組成
としても一旦ボビン、ドラム等に巻き取る際に複合未硬
化状線状材中で補強繊維の片寄りや乱れが発生すること
もあって硬化後の強度において、ＦＲＰ一般に用いられ
ているスチレンモノマーを架橋成分として含む組成と比
較して２０〜３０％程度劣る。However, even with the thermosetting resin composition described in the same patent publication, the reinforcing fibers may become uneven or disordered in the composite uncured linear material once it is wound onto a bobbin, drum, etc. The strength after curing is about 20 to 30% lower than that of a composition containing styrene monomer as a crosslinking component, which is commonly used in FRP.
また、光ファイバケーブルを製造するに際しては、前記
の螺旋スペーサの溝中に光フアイバ心線等を収納する必
要があって、このためボビン等に巻かれた光フアイバ心
線等を回転するか、スペーサ自身を長軸の周りに回転す
る必要があるし、ＦＲＰ鎧装を施す場合も鎧装線ないし
ケーブル自体を回転する必要があり、何れにしても回転
装置の複雑化、大型化を余儀なくされる。Furthermore, when manufacturing an optical fiber cable, it is necessary to store the optical fiber in the groove of the spiral spacer, and for this purpose, the optical fiber, etc. wound around a bobbin or the like must be rotated or It is necessary to rotate the spacer itself around its long axis, and when applying FRP armor, it is necessary to rotate the armor wire or cable itself, and in any case, the rotation device is forced to become more complicated and larger. Ru.
そこで、本発明者らは、上述の問題、すなわち鎧装線の
強度低下や設備の複雑化、大型化を抑制できる生産性の
高いＦＲＰ鎧装光ファイバケーブルの製造方法について
鋭意検討して本願発明を完成した。Therefore, the present inventors have diligently studied a method for manufacturing FRP armored optical fiber cables with high productivity that can suppress the above-mentioned problems, namely, the decrease in the strength of armored wires and the complexity and enlargement of equipment, and have developed the present invention. completed.
（発明の構成）
上記目的を達成するために、本発明の繊維強化熱硬化性
樹脂製鎧装光ケーブルの製造方法は、スペーサの溝内に
光ファイバを収納して、その外周に外皮シースを形成し
て光ファイバケーブルを得る第１工程と、補強繊維に熱
硬化性樹脂を含浸させ、この熱硬化性樹脂が未硬化状態
で熱可塑性樹脂を被覆した後固化させて複数の未硬化状
鎧装体を得る第２工程と、前記第１工程で得られた光フ
ァイバケーブルを中心に配置し、かつ、前記第２工程で
得られた複数の鎧装体をその外周に供給しつつこれらを
撚合わせた後熱可塑性樹脂により被覆層を形成する第３
工程と、前記被覆層および前記熱硬化性樹脂をそれぞれ
固化、硬化させる第４工程とを有し、前記第１から第４
工程が連続して行われることを特徴とする。 本発明の
鎧装体に使用できる補強用繊維の素材は、抗張力性を有
するものであれば特にその種類を問わないが、連続繊維
状のガラス繊維、芳香族ポリアミド繊維、カーボン繊維
などや、ナイロン、ポリエステル、ビニロンなどの合成
繊維があげられる。(Structure of the Invention) In order to achieve the above object, the method for manufacturing a fiber-reinforced thermosetting resin armored optical cable of the present invention includes storing an optical fiber in a groove of a spacer and forming an outer sheath around the outer periphery of the optical fiber. The first step is to impregnate reinforcing fibers with a thermosetting resin, and the thermosetting resin is coated with a thermoplastic resin in an uncured state, and then hardened to form a plurality of uncured armor sheaths. a second step of obtaining a body, and placing the optical fiber cable obtained in the first step at the center, and twisting them while supplying a plurality of armored bodies obtained in the second step to the outer periphery thereof. After the combination, a third layer is formed of a thermoplastic resin to form a covering layer.
and a fourth step of solidifying and curing the coating layer and the thermosetting resin, respectively.
It is characterized in that the steps are performed continuously. The reinforcing fiber material that can be used for the armor body of the present invention is not particularly limited as long as it has tensile strength, but continuous glass fibers, aromatic polyamide fibers, carbon fibers, nylon fibers, etc. Examples include synthetic fibers such as , polyester, and vinylon.
繊維の含有率は、概ね５０〜７５ｖｏＮ％、より好まし
くは５５〜７０ ｖｏｇ％である。The fiber content is approximately 50 to 75 voN%, more preferably 55 to 70 vog%.
また、鎧装体の補強繊維に含浸させる熱硬化性樹脂は、
不飽和ポリエステル樹脂が一般的であるが、エポキシ樹
脂、フェノール樹脂などであってもよい。In addition, the thermosetting resin that is impregnated into the reinforcing fibers of the armor body is
Unsaturated polyester resins are common, but epoxy resins, phenolic resins, etc. may also be used.
前記補強繊維に未硬化状熱硬化性樹脂を含浸させたもの
の外周を被覆する熱可塑性樹脂は、溶融押出による被覆
が容易なものであれば特にその種類を問わないが、一般
的には、柔軟性、耐低温物性、経済性などからポリエチ
レン系の樹脂や柔軟性の樹脂としてポリアミド樹脂が推
奨される。The type of thermoplastic resin that covers the outer periphery of the reinforcing fibers impregnated with an uncured thermosetting resin is not particularly limited as long as it can be easily coated by melt extrusion, but generally, it is a flexible resin. Polyethylene-based resins and polyamide resins are recommended as flexible resins due to their properties, low-temperature resistance, and economic efficiency.
ＦＲＰ鎧装光ケーブルを製造するに際しては、未硬化状
の複合状鎧装体を製造する方法は、本出願人による先願
の特公昭５１−４３５０１号による方法を基本として、
得ようとするケーブルに必要な数の鎧装体を同時に熱可
塑性樹脂によって被覆し、該被覆層を直ちに冷却した後
、その直後に撚工程に入る。When manufacturing an FRP armored optical cable, the method for manufacturing an uncured composite armored body is based on the method disclosed in Japanese Patent Publication No. 51-43501 filed by the present applicant.
The number of armor bodies required for the cable to be obtained is simultaneously coated with thermoplastic resin, the coating layer is immediately cooled, and immediately thereafter the twisting process begins.
鎧装体の撚合せは、ボビン等に巻付けられ、回転引取機
に同調して回転可能に供給される光ファイバケーブル用
スペーサの溝部に光フアイバテープ心線等を収納し、さ
らにその外周にテーピング、外皮シースを施された光フ
ァイバケーブルを中央に供給し、その外周にガイドを介
して複数の鎧装体を供給しつつ撚合せた後、熱可塑性樹
脂被覆を施し、しかる後加熱硬化槽に導いて未硬化状鎧
装体の内部樹脂を硬化せしめ回転引取機を経て回転巻取
機に巻取られる過程において、回転引取機等の回転によ
って行なわれる。Twisting of the armored body is accomplished by storing optical fiber tape cores in the grooves of an optical fiber cable spacer, which is wound around a bobbin or the like and rotatably supplied in synchronization with a rotary take-up machine. Optical fiber cables that have been taped and sheathed are supplied to the center, and multiple armor bodies are supplied to the outer periphery via guides and twisted, then coated with thermoplastic resin, and then placed in a heat curing bath. This is done by the rotation of the rotary take-up machine, etc. in the process of hardening the internal resin of the uncured armor sheath and winding it up by the rotary take-up machine via the rotary take-up machine.
なお、光ファイバケーブル用スペーサの回転供給装置と
、後方の回転引取機との距離が長くなると、その間でス
ペーサあるいは光ファイバケーブルに捩り力が付加され
る危惧もあるので、このような場合には、例えば外皮シ
ースを施した先ファイバケーブルを同調回転する引取機
で引取つり供給するなど適宜回転引取機を追加配置すれ
ばよい。In addition, if the distance between the optical fiber cable spacer rotation supply device and the rear rotary take-up machine becomes long, there is a risk that twisting force will be applied to the spacer or optical fiber cable between them. For example, a rotary take-off machine may be additionally arranged as appropriate, for example, a sheathed fiber cable may be taken off and supplied by a take-off machine that rotates synchronously.
光ファイバケーブルの外周に未硬化状の鎧装体を撚合せ
るに際しての各鎧装体のテンションＴは、これに使用さ
れている補強繊維の単位重量Ｗ（。The tension T of each armor sheath when twisting the uncured armor sheath around the outer periphery of the optical fiber cable is the unit weight W of the reinforcing fiber used therein.
／ ｍ ）に対して
Ｔ≧（９０００ｘＷｘ０．０５）Ｘｉ／３ （ｇ）とす
ることが硬化後の光ケーブルの引張弾性率や引張強力な
どの物性を向上させる点から好ましい。/m), it is preferable that T≧(9000xWx0.05)Xi/3 (g) from the viewpoint of improving physical properties such as tensile elastic modulus and tensile strength of the optical cable after curing.
（実 施 例）
以下、本発明の好適な実施例について添付図面を参照に
して詳細に説明する。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明にかかるＦＲＰ鎧装光ケーブルの製造方
法の一実施例を示している。FIG. 1 shows an embodiment of the method for manufacturing an FRP armored optical cable according to the present invention.
同図に示す製造方法は、光ファイバケーブルを得る第１
工程と、鎧装体を得る第２工程と、光ファイバケーブル
と鎧装体とを撚合わせて被覆する第３工程と、被覆層お
よび熱硬化性樹脂を固化。The manufacturing method shown in the figure is the first step to obtain an optical fiber cable.
a second step of obtaining an armor body; a third step of twisting and covering the optical fiber cable and the armor body; and solidifying the coating layer and thermosetting resin.
硬化させる第４工程とからなり、これらの工程が連続し
て行われる。and a fourth step of curing, and these steps are performed successively.
なお、第１図に示す符号１０の装置は、予め別工程で作
られたスペーサａ１が捲回され、このスペーサａ１を送
り出しながら水平面内で回転させるスペーサ供給装置で
あり、また、同符号１２の装置は製造されたＦＲＰ鎧装
光ケーブルａ４を巻き取りながら水平面内で回転させる
回転巻取装置である。The device 10 shown in FIG. 1 is a spacer feeding device in which a spacer a1 made in advance in a separate process is wound and rotated in a horizontal plane while feeding out the spacer a1. The device is a rotary winding device that rotates the manufactured FRP armored optical cable A4 in a horizontal plane while winding it up.
まず、スペーサａ１の製造方法について説明すると、ス
ペーサａ１の中央に配置する抗張力線ａ１１として、３
．５ｍｍの繊維強化熱硬化性樹脂製線状物の外周に低密
度ポリエチレンにより５．８ｍｍの被覆を施したものを
用いた。First, to explain the manufacturing method of the spacer a1, as the tensile strength line a11 arranged at the center of the spacer a1, 3
．． A 5 mm fibre-reinforced thermosetting resin filament whose outer periphery was coated with 5.8 mm of low density polyethylene was used.
なお、この抗張力線ａｌｌの製造法の詳細は、本出願人
の先願特許である特公平１−５０５９１号公報に開示さ
れている。The details of the method for producing this tensile strength wire all are disclosed in Japanese Patent Publication No. 1-50591, which is a prior patent filed by the present applicant.
次いで、抗張力線ａｌｌの外周に溶融状の高密度ポリエ
チレンを回転しながら押出して、溝幅および溝深さがと
もに１．５１１！１であって、外径が９゜４ｍｍ、溝数
が１２個、螺旋のピッチが５００■ｌの螺旋スペーサａ
１を作製した。Next, molten high-density polyethylene was extruded around the outer periphery of the tensile strength wire all while rotating, and the groove width and groove depth were both 1.511!1, the outer diameter was 9°4 mm, and the number of grooves was 12. , a spiral spacer a with a spiral pitch of 500 μl
1 was produced.
第１工程では、このスペーサａ１をスペーサ供給装置１
０に捲回して、スペーサａ１を繰り出す一方で、小ボビ
ン１４に巻かれたナイロンシース光フアイバ心線ａ２１
を８本繰り出しつつスペーサａ１の溝内に挿入し、さら
にその外周にポリエステル繊維製の細幅テープａ２２を
２本が交差するようにして巻き付けた。In the first step, the spacer a1 is transferred to the spacer supply device 1.
0 and unwinding the spacer a1, the nylon sheathed optical fiber core wire a21 wound around the small bobbin 14
Eight tapes were fed out and inserted into the groove of the spacer a1, and a narrow polyester fiber tape a22 was wound around the outer periphery of the spacer so that the two tapes intersected.
そして、テープａ２２が巻き付けられた状態で溶融押出
し機１６のクロスヘツドに挿通して、その外周に低密度
ポリエチレン（日本ユニカー（株）製、ＮＵＣＧ−０５
８８）を押出して、外径が１３．５ｍｍになるように外
皮シースａ２３を形成し、これを直ちに冷却槽１８で冷
却し、光ファイバケーブルａ２を得た。Then, the tape A22 wrapped around it is inserted into the crosshead of the melt extruder 16, and the outer periphery is coated with low density polyethylene (manufactured by Nippon Unicar Co., Ltd., NUCG-05).
88) was extruded to form an outer sheath a23 having an outer diameter of 13.5 mm, which was immediately cooled in the cooling tank 18 to obtain an optical fiber cable a2.
第２工程では、鎧装体ａ３は、１２本で構成するので、
クリールスタンド２０に配置されたガラス繊維ロービン
グ（日東紡績製Ｒ３１１０）１３本およびガラス繊維ヤ
ーン（日本電気ガラス製２８０ＴＥＸ）２本からなる補
強繊維ａ３１を用いこれを不飽和ポリエステル樹脂（三
井東圧化学製、ニスターＨ−８０００）および硬化用過
酸化物触媒を混合した樹脂浴２２に導き、補強繊維ａ３
１に樹脂を含浸し、しかる後、外径が３．５ｍｍになる
ように成形機２４で絞り成形した。In the second step, the armor body a3 is composed of 12 pieces, so
Reinforcing fibers A31 consisting of 13 glass fiber rovings (R3110 manufactured by Nittobo Co., Ltd.) and 2 glass fiber yarns (280TEX manufactured by Nippon Electric Glass Co., Ltd.) arranged on the creel stand 20 are used and are combined with unsaturated polyester resin (manufactured by Mitsui Toatsu Chemical Co., Ltd.). , Nistar H-8000) and a curing peroxide catalyst, and reinforcing fibers a3
1 was impregnated with resin, and then drawn by a molding machine 24 so that the outer diameter was 3.5 mm.
次いで、溶融押出し機２６に挿通して、補強繊維ａ３１
に含浸させた熱硬化性樹脂が未硬化の状態で、その外周
に低密度ポリエチレンを押出し、外径が４．５鰭になる
ように被覆層ａ３２を設け、その後直ちに表面の被覆層
ａ３２だけを冷却槽２８で冷却して１２本の鎧装体ａ３
を得た。Next, the reinforcing fiber a31 is inserted into the melt extruder 26.
In an uncured state, the thermosetting resin impregnated with the thermosetting resin is extruded on the outer periphery of the thermosetting resin, and a coating layer a32 is provided so that the outer diameter becomes 4.5 fins, and then only the coating layer a32 on the surface is immediately removed. Cooled in cooling tank 28 and made 12 armor a3
I got it.
第３工程では、第１工程で得られた光ファイバケーブル
ａ２を中心に配置し、第２工程で得られた内部の熱硬化
性樹脂が未硬化状態の鎧装体ａ３をガイド３０，３２を
通してケーブルａ２の外周に収斂させ、前記スペーサａ
１が捲回されたスペーサ供給装置１０と同調して回転す
る回転引取機４０により回転させられているケーブルａ
２の外周に１２本の鎧装体ａ３が周方向に密着して配置
され、かつ、スペーサａ１の螺旋ピッチと同一である５
００ ｍｍのピッチで撚合わせた。In the third step, the optical fiber cable a2 obtained in the first step is placed at the center, and the armor body a3 obtained in the second step, in which the thermosetting resin inside is in an uncured state, is passed through the guides 30 and 32. The spacer a is converged around the outer periphery of the cable a2.
Cable a rotated by a rotary take-up machine 40 that rotates in synchronization with the spacer supply device 10 in which C.1 is wound.
Twelve armor bodies a3 are arranged in close contact with each other in the circumferential direction on the outer periphery of spacer 2, and the helical pitch is the same as that of spacer a1.
They were twisted at a pitch of 0.00 mm.
次いで、この状態で撚合わせたものを押出し機３４のク
ロスヘツドに通して、その外周に低密度ポリエチレンを
押出して、外径が２６．５ｍ＋ｍになるように外装被覆
層ａ４１を形成した。Next, the twisted material in this state was passed through the crosshead of the extruder 34, and low-density polyethylene was extruded around the outer periphery of the twisted material to form an outer covering layer a41 having an outer diameter of 26.5 m+m.
第４工程では、まず、第３工程で形成された外層被覆層
ａ４１が冷却槽３６で冷却されて固化され、次いで９８
℃の熱湯槽３８に導いて、鎧装体ａ３の補強繊維ａ３１
に含浸させられている熱硬化性樹脂が硬化され、これに
よりＦＲＰ鎧装光ケーブルａ４が得られ、光ケーブルａ
４は回転引取機４０を介して回転巻取機１２に巻きとっ
た。In the fourth step, the outer coating layer a41 formed in the third step is first cooled and solidified in the cooling tank 36, and then
The reinforcing fibers a31 of the armor body a3 are
The thermosetting resin impregnated into the fiber is cured, thereby obtaining an FRP armored optical cable a4.
4 was wound onto the rotary winder 12 via the rotary winder 40.
得られたＦＲＰ鎧装光ケーブルａ４の断面形状は、第２
図に示すものであり、引張り性能、捻回性能、圧縮性能
、曲げ性能、低温特性などにおいて充分満足するもので
あった。The cross-sectional shape of the obtained FRP armored optical cable a4 is as follows.
As shown in the figure, the tensile performance, twisting performance, compression performance, bending performance, low temperature properties, etc. were fully satisfactory.
（作用効果）
本発明のＦＲＰ鎧装光ファイバケーブルによれば、光フ
ァイバケーブルの製造に直結して、未硬化状のＦＲＰ鎧
装線を該光ファイバケーブルの外周に密接して撚合せし
、その外周に外層被覆層を施した後内部の未硬化状熱硬
化性樹脂を硬化するので、従来において未硬化段階での
貯蔵安定性を考慮した熱硬化性樹脂組成と比較して強度
発現性の高い熱硬化性樹脂及び触媒を使用でき、得られ
るＦＲＰ鎧装ケーブルのＦＲＰによる鎧装効果を充分に
発揮させることができる。(Operation and Effect) According to the FRP armored optical fiber cable of the present invention, uncured FRP armored wire is closely twisted around the outer periphery of the optical fiber cable in direct connection with the production of the optical fiber cable, After applying an outer coating layer to the outer periphery, the uncured thermosetting resin inside is cured, so compared to conventional thermosetting resin compositions that take into account storage stability in the uncured stage, strength development is improved. A high thermosetting resin and catalyst can be used, and the resulting FRP armored cable can fully exhibit the armoring effect of FRP.
また、光ファイバケーブルを得る第１の工程、未硬化状
のＦＲＰ鎧装線を得る第２の工程、この未硬化状の鎧装
線を前記光ファイバケーブルに撚合せその外周に熱可塑
性樹脂により被覆層を形成する第３の工程及び未硬化状
熱硬化性樹脂を硬化する第４の工程とを直結しているの
で、これらの各工程を各別に行なう場合と比較して、各
別の工程において必須である回転引取機、回転巻取機及
び巻取ドラム等が不要となり、設備の低減および省力化
などに資する。In addition, a first step of obtaining an optical fiber cable, a second step of obtaining an uncured FRP armored wire, the uncured armored wire is twisted to the optical fiber cable, and the outer periphery is coated with thermoplastic resin. The third step of forming the coating layer and the fourth step of curing the uncured thermosetting resin are directly connected, so compared to the case where each of these steps is performed separately, the number of separate steps is reduced. This eliminates the need for a rotary take-up machine, a rotary winder, a winding drum, etc., which are indispensable in the process, contributing to equipment reduction and labor savings.
上記の如く、本発明の方法によれば、鎧装ケーブルの物
性の向上及び設備費の低減化、省力化などが画られ、極
めて有用な方法である。As described above, the method of the present invention improves the physical properties of armored cables, reduces equipment costs, saves labor, and is an extremely useful method.
第１図は、本発明にかかるＦＲＰ鎧装光ファイバケーブ
ルの製造方法の工程説明図、第２図は同製造方法によっ
て得られるＦＲＰ鎧装光ファイバケーブルの一例を示す
断面図である。
ａｌ・・・・・スペーサ
ａ２・・・・・・光ファバケーブル
ａ２１・・・光フアイバ心線
ａ２３・・・外皮シース
ａ３・・・・・・鎧装体
ａ３１・・・補強繊維
ａ３２・・・被覆層
ａ４・・・・・ＦＲＰ鎧装光ケーブル
ａ４１・・・外層被覆層FIG. 1 is a process explanatory diagram of a method for manufacturing an FRP armored optical fiber cable according to the present invention, and FIG. 2 is a sectional view showing an example of an FRP armored optical fiber cable obtained by the same manufacturing method. al... Spacer a2... Optical fiber cable a21... Optical fiber core wire a23... Outer sheath a3... Armor body a31... Reinforcement fiber a32... ...Coating layer a4...FRP armored optical cable a41...Outer coating layer
Claims (1)
皮シースを形成して光ファイバケーブルを得る第１工程
と、 補強繊維に熱硬化性樹脂を含浸させ、この熱硬化性樹脂
が未硬化状態で熱可塑性樹脂を被覆した後固化させて複
数の未硬化状鎧装体を得る第２工程と、 前記第１工程で得られた光ファイバケーブルを中心に配
置し、かつ、前記第２工程で得られた複数の鎧装体をそ
の外周に供給しつつこれらを撚合わせた後熱可塑性樹脂
により被覆層を形成する第３工程と、 前記被覆層および前記熱硬化性樹脂をそれぞれ固化、硬
化させる第４工程とを有し、 前記第１から第４工程が連続して行われることを特徴と
するＦＲＰ鎧装光ケーブルの製造方法。[Claims] A first step of storing an optical fiber in a groove of a spacer and forming an outer sheath around its outer periphery to obtain an optical fiber cable; and a step of impregnating reinforcing fibers with a thermosetting resin and applying heat to the reinforcing fibers. a second step in which the thermoplastic resin is coated with the curable resin in an uncured state and then solidified to obtain a plurality of uncured armor bodies, and the optical fiber cable obtained in the first step is arranged at the center; and a third step of supplying the plurality of armor bodies obtained in the second step to the outer periphery thereof, twisting them together, and then forming a covering layer with a thermoplastic resin; and the covering layer and the thermosetting resin. A method for manufacturing an FRP armored optical cable, comprising a fourth step of solidifying and hardening the resin, and the first to fourth steps are performed continuously.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2152618A JPH0445405A (en) | 1990-06-13 | 1990-06-13 | Production of frp armored optical cable |
| JP15953391A JP3176390B2 (en) | 1990-06-13 | 1991-06-04 | Method of manufacturing reinforced plastic armored cable |
| FI912771A FI912771A (en) | 1990-06-13 | 1991-06-07 | FOERFARANDE FOER FRAMSTAELLNING AV EN FIBERFOERSTAERKAD KABEL OCH KABEL FRAMSTAELLD ENLIGT FOERFARANDET. |
| TW080104562A TW205598B (en) | 1990-06-13 | 1991-06-11 | |
| DK91305285.8T DK0461871T3 (en) | 1990-06-13 | 1991-06-12 | Process for producing a fiber-reinforced plastic reinforced cable |
| ES91305285T ES2085427T3 (en) | 1990-06-13 | 1991-06-12 | MANUFACTURING METHOD OF A CABLE PROTECTED WITH PLASTIC REINFORCED WITH FIBER. |
| EP91305285A EP0461871B1 (en) | 1990-06-13 | 1991-06-12 | Method of manufacturing a fiber reinforced plastic armored cable |
| DE69118443T DE69118443T2 (en) | 1990-06-13 | 1991-06-12 | Method for producing a cable reinforced with fiber-reinforced plastic |
| KR1019910009709A KR0137760B1 (en) | 1990-06-13 | 1991-06-13 | Fiber reinforced plastic armored cable and its manufacturing process |
| US07/714,607 US5126167A (en) | 1990-06-13 | 1991-06-13 | Process of manufacturing a fiber reinforced plastic armored cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2152618A JPH0445405A (en) | 1990-06-13 | 1990-06-13 | Production of frp armored optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0445405A true JPH0445405A (en) | 1992-02-14 |
Family
ID=15544318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2152618A Pending JPH0445405A (en) | 1990-06-13 | 1990-06-13 | Production of frp armored optical cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445405A (en) |
-
1990
- 1990-06-13 JP JP2152618A patent/JPH0445405A/en active Pending
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