JPH01207710A - Metallic wire for reinforcing optical fiber - Google Patents
Metallic wire for reinforcing optical fiberInfo
- Publication number
- JPH01207710A JPH01207710A JP63033360A JP3336088A JPH01207710A JP H01207710 A JPH01207710 A JP H01207710A JP 63033360 A JP63033360 A JP 63033360A JP 3336088 A JP3336088 A JP 3336088A JP H01207710 A JPH01207710 A JP H01207710A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- metallic wire
- metal wire
- rough surface
- metal
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 17
- 239000013307 optical fiber Substances 0.000 title claims description 15
- 238000005491 wire drawing Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 48
- 238000007747 plating Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 abstract description 19
- 229920005989 resin Polymers 0.000 abstract description 19
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は通信用光ケーブルに用いる光ファイバーの補
強用金属線に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a metal wire for reinforcing optical fibers used in optical communication cables.
通信用光ケーブルの補強方法としては、ピアノ線、硬鋼
線などの抗張力の大きい金属線をケーブル外装線として
使用する方法と、さらにケーブルの中心にある光ファイ
バーと樹脂の複合体であるファイバーユニットにピアノ
線などの抗張力の大きい金属線を複合させる方法を併用
する方法とがある。Optical communication cables can be reinforced by using metal wires with high tensile strength, such as piano wire or hard steel wire, as the cable sheathing wire, or by adding piano wire to the fiber unit, which is a composite of optical fiber and resin at the center of the cable. There is also a method of combining a method of combining metal wires with high tensile strength such as wires.
上記のファイバーユニット内に複合される金属線は、マ
トリックスである樹脂との優れた接着性能が要求される
ため、現在は、予め銅メッキを施して冷間伸線を加えた
、５〜１０−のメッキ厚を有する銅メッキピアノ線や、
通常のピアノ線を用いることによってその比較的表面粗
さの大きい表面と樹脂との摩擦抵抗で接着性能を確保し
ている。The metal wire composited in the above fiber unit is required to have excellent adhesion performance with the matrix resin, so currently, 5 to 10- Copper-plated piano wire with a plating thickness of
By using ordinary piano wire, adhesive performance is ensured by the frictional resistance between its relatively rough surface and the resin.
光ファイバー補強用金属線は上記のようにメッキを施し
たのちに伸線加工を行なう工程になっているため、伸線
工程で使用した潤滑剤が鋼線の表面に残留する。Since the metal wire for reinforcing optical fibers is drawn after being plated as described above, the lubricant used in the wire drawing process remains on the surface of the steel wire.
このため樹脂のコーティング層と金属線の密着性を低下
させ、金属線の耐食性にも悪影響を与えるという問題が
ある。Therefore, there is a problem in that the adhesion between the resin coating layer and the metal wire is reduced, and the corrosion resistance of the metal wire is also adversely affected.
また、第３図に示すように金属線１の表面２の粗さが小
さく、殆んど粗面とならないため、樹脂・ Ｎ３との接
着性が十分でないという問題もある。Furthermore, as shown in FIG. 3, the surface 2 of the metal wire 1 has a small roughness and is hardly a rough surface, so there is a problem that the adhesion to the resin/N3 is not sufficient.
この発明は上記のような従来技術の問題点を解決するた
めになされたもので、樹脂コーティング層との接着性能
づ向上した光ファイバー補強用金属線を提供することを
目的とするものである。The present invention was made to solve the problems of the prior art as described above, and an object of the present invention is to provide a metal wire for reinforcing optical fibers that has improved adhesion performance with a resin coating layer.
上記の目的を達成するために、この発明は光ファイバー
の補強用金属線において、同補強用金属線の表面粗さを
、通常の伸泉加工後の表面よりもはるかに大きい凹凸か
らなる粗面としたものである。In order to achieve the above object, the present invention improves the surface roughness of reinforcing metal wire for optical fibers to a rough surface consisting of much larger irregularities than the surface after normal stretching processing. This is what I did.
また、金属線の表面？こ展延性の乏しい金属のメッキを
旅し、ついで冷１１伸線したのち、このメッキ層を酸で
溶角１することにより金属線の表面を通常の伸線加工後
の表面よりもはるかに大きい凹凸からなる粗面とする場
合、あるいは上記メッキ層を加工硬化の大きい金属にす
る場合がある。Also, the surface of the metal wire? After plating the metal with poor malleability and then drawing it cold, the plating layer is annealed with acid to make the surface of the metal wire much larger than the surface after normal wire drawing. In some cases, the surface is roughened with unevenness, or the plated layer is made of a metal that is highly work hardened.
第１図、第２図に示す実施例において、１１は円形断面
の金属線で、その外周面には無数の凹凸が形成された粗
面１２が形成されているが、この粗面は下記のようにし
て形成される。In the embodiment shown in FIGS. 1 and 2, 11 is a metal wire with a circular cross section, and a rough surface 12 with countless unevenness is formed on its outer peripheral surface. It is formed in this way.
上記金属線１１はピアノ線、ステンレス鋼線などであり
、その表面に展延性の乏しいか、または加工硬化の大き
い金属、例えばニッケル、亜鉛合金などのメッキを施す
。The metal wire 11 is a piano wire, a stainless steel wire, or the like, and its surface is plated with a metal that has poor malleability or is highly work hardened, such as nickel or zinc alloy.
上記のようなメッキを施した金属線１１を冷間伸線機に
より伸線し、ついで、硝酸、塩酸などの酸によりメッキ
層を溶解すると、金属線１１の表面が、第２図のような
凹凸の大きい粗面１２となる。When the plated metal wire 11 as described above is drawn using a cold wire drawing machine, and then the plating layer is dissolved with an acid such as nitric acid or hydrochloric acid, the surface of the metal wire 11 becomes as shown in Fig. 2. This results in a rough surface 12 with large irregularities.
すなわち、上記のように金属線１１の表面に施したメッ
キ層に用いた金属は展延性の乏しいものや加工硬化の大
きいものであるから、メッキ後の冷間伸線の過程で加工
硬化して無数のクランクが発生する。That is, since the metal used for the plating layer applied to the surface of the metal wire 11 has poor malleability or is highly work hardened as described above, the metal may be work hardened during the cold wire drawing process after plating. Countless cranks occur.
上記のように、無数のクランクが発生したメッキ層が金
属線１１の地肌を荒し、凹凸の大きい粗面１２が形成さ
れるのである。As described above, the plating layer generated by countless cranks roughens the surface of the metal wire 11, forming a rough surface 12 with large irregularities.
また、メッキ層は地肌を露出させるために、酸により溶
解して除去する。Further, the plating layer is removed by dissolving it with acid to expose the background.
こうして粗面１２を形成した補強用金属線１１の表面に
、第１図、第２図のようにＵＶ樹脂などからなる樹脂層
１３を設ける。金属線１１の粗面１２は第３図の従来の
ものに比較して、その凹凸の深さや数がはるかに大きく
なっているから、樹脂１１１３が金属線１１の粗面１２
の凹部に食い込む割合が高くなり、そのため、金属線１
１と樹脂１！１１３の接着性が向上する。As shown in FIGS. 1 and 2, a resin layer 13 made of UV resin or the like is provided on the surface of the reinforcing metal wire 11 on which the rough surface 12 has been formed. The rough surface 12 of the metal wire 11 has a much larger depth and number of unevenness than the conventional one shown in FIG.
The proportion of the metal wire 1 biting into the recesses increases, and as a result, the metal wire 1
The adhesion between 1 and resin 1!113 is improved.
実施例として０．８ｍφのピアノ線の表面にこの発明の
粗面を設けたものを補強用金属線として実際に光ファイ
バーユニットを製作じ、樹脂層との接着性能−二ついて
従来品と比較じたデータを第４図のグラフで示す。As an example, an optical fiber unit was actually fabricated using a 0.8 mφ piano wire with the rough surface of the present invention as a reinforcing metal wire, and the adhesion performance with the resin layer was compared with two conventional products. The data are shown in the graph of FIG.
この性能評価は光ファイバーユニットに引張荷重を加え
たとき、樹脂層が筒状に抜ける長さで判定したもので、
縦軸は引抜き長さ（ｍ） 、横軸は張り荷重を示すもの
である。This performance evaluation is determined by the length of the resin layer that comes out in a cylindrical shape when a tensile load is applied to the optical fiber unit.
The vertical axis shows the pull-out length (m), and the horizontal axis shows the tension load.
このグラフで明らかなように、この発明は従来品と比べ
て３．０倍から３．５倍に接着性能が向上していること
がわかる。As is clear from this graph, it can be seen that the adhesive performance of the present invention is improved by 3.0 to 3.5 times compared to the conventional product.
この発明は前記のように光ファイバー補強用金属線の表
面を通常の伸線加工後の粗面よりもはるかに大きい凹凸
からなる粗面としたものであるから、従来の光ファイバ
ー補強用金属線に比較して樹脂が粗面の凹部に食い込む
割合が高く、その結果、金属表面と樹脂層との界面にお
ける摩擦抵抗が増大して接着性能が向上するのである。As described above, this invention has a roughened surface of the metal wire for reinforcing optical fibers, which has much larger irregularities than the rough surface after normal wire drawing, so it is compared with the conventional metal wire for reinforcing optical fibers. As a result, the resin has a high rate of digging into the recesses of the rough surface, and as a result, the frictional resistance at the interface between the metal surface and the resin layer increases and the adhesive performance improves.
従ってこの発明の補強用金属線を光ファイバーユニット
内用いることにより金属線と樹脂との接着性が改善され
、光ケーブルの水走り特性の向上に寄与するものである
。Therefore, by using the reinforcing metal wire of the present invention in an optical fiber unit, the adhesion between the metal wire and the resin is improved, which contributes to improving the water running characteristics of the optical cable.
なお、金属線の表面に展延性の乏しいか、または加工硬
化の大きい金属のメッキを施し、このメッキ層を酸で溶
解することにより金属線の表面を容易に粗面とすること
ができ、その際メッキ層の材料を加工硬化の大きい金属
としても同じ効果が得られる。Note that the surface of the metal wire can be easily roughened by plating the surface of the metal wire with a metal that has poor malleability or is highly work hardened, and then dissolving this plating layer with acid. The same effect can be obtained even if the material of the plated layer is a metal with high work hardening.
第１図はこの発明の光ファイバー補強用金属線の一実施
例を示す一部切欠側面図、第２図は同上要部の拡大断面
図、第３図は従来品の要部拡大断面図、第４図は引抜力
と引抜き長さの関係を示すグラフである。
１１・・・・・・金属線、 １２・・・・・・粗面
、１３・・・・・・樹脂層。
特許出願人 住友電気工業株式会社
同 代理人 鎌 １） 文 ニ第１図
第４図
（ピアノ線）（飼″“
ピア、線）FIG. 1 is a partially cutaway side view showing an embodiment of the optical fiber reinforcing metal wire of the present invention, FIG. 2 is an enlarged sectional view of the same essential parts, and FIG. FIG. 4 is a graph showing the relationship between the pulling force and the pulling length. 11... Metal wire, 12... Rough surface, 13... Resin layer. Patent applicant: Sumitomo Electric Industries, Ltd. Agent: Kama 1) Figure 1 Figure 4 (Piano wire) (Pier, wire)
Claims (3)
金属線の表面を、通常の伸線加工後の表面よりもはるか
に大きい凹凸からなる粗面としたことを特徴とする光フ
ァイバー補強用金属線。(1) A metal wire for reinforcing optical fibers, characterized in that the surface of the reinforcing metal wire has a roughened surface with much larger irregularities than the surface after normal wire drawing processing. .
し、ついで冷間伸線したのち、このメッキ層を酸で溶解
することにより金属線の表面を通常の伸線加工後の表面
よりもはるかに大きい凹凸からなる粗面としたことを特
徴とする請求項１記載の光ファイバー補強用金属線。(2) The surface of the metal wire is plated with a metal with poor malleability, then cold wire drawn, and then this plating layer is dissolved with acid to make the surface of the metal wire better than the surface after normal wire drawing. 2. The metal wire for reinforcing optical fibers according to claim 1, wherein the metal wire has a rough surface consisting of much larger irregularities.
を特徴とする請求項２記載の光ファイバー補強用金属線
。(3) The metal wire for reinforcing optical fibers according to claim 2, wherein the plating layer is made of a metal that is highly work hardened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033360A JPH01207710A (en) | 1988-02-16 | 1988-02-16 | Metallic wire for reinforcing optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63033360A JPH01207710A (en) | 1988-02-16 | 1988-02-16 | Metallic wire for reinforcing optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01207710A true JPH01207710A (en) | 1989-08-21 |
Family
ID=12384419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63033360A Pending JPH01207710A (en) | 1988-02-16 | 1988-02-16 | Metallic wire for reinforcing optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01207710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033432A1 (en) * | 1995-04-19 | 1996-10-24 | Komatsu Ltd. | Tension member for optical fiber cable, optical fiber cable using the tension member, and production of the tension member |
| JP2004069747A (en) * | 2002-08-01 | 2004-03-04 | Japan Aviation Electronics Industry Ltd | Optical fiber cable, end structure of optical fiber cable and clamp structure of tension member |
-
1988
- 1988-02-16 JP JP63033360A patent/JPH01207710A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996033432A1 (en) * | 1995-04-19 | 1996-10-24 | Komatsu Ltd. | Tension member for optical fiber cable, optical fiber cable using the tension member, and production of the tension member |
| JP2004069747A (en) * | 2002-08-01 | 2004-03-04 | Japan Aviation Electronics Industry Ltd | Optical fiber cable, end structure of optical fiber cable and clamp structure of tension member |
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