JPS6310805B2 - - Google Patents
Info
- Publication number
- JPS6310805B2 JPS6310805B2 JP56030928A JP3092881A JPS6310805B2 JP S6310805 B2 JPS6310805 B2 JP S6310805B2 JP 56030928 A JP56030928 A JP 56030928A JP 3092881 A JP3092881 A JP 3092881A JP S6310805 B2 JPS6310805 B2 JP S6310805B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- optical fiber
- pipe
- coating layer
- welding
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 49
- 239000013307 optical fiber Substances 0.000 claims description 17
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4402—Optical cables with one single optical waveguide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
- G02B6/4488—Protective covering using metallic tubes
Description
【発明の詳細な説明】
本発明は、金属管に光フアイバが収納された金
属管収納光フアイバの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an optical fiber housed in a metal tube, in which the optical fiber is housed in a metal tube.
光通信、電気通信或いは電力供給用等のケーブ
ルがひとまとめになつた複合電力ケーブルにおい
ては、第１図に示すように、光フアイバｆは金属
管ｐに収納されてケーブルｃに組み込まれる。 In a composite power cable in which cables for optical communication, electric communication, power supply, etc. are bundled together, as shown in FIG. 1, an optical fiber f is housed in a metal tube p and incorporated into a cable c.
ところで一般にケーブルｃの主材料はアルミニ
ウムであるため、金属管ｐの材料としてはアルミ
ニウムが使用される。 By the way, since the main material of the cable c is generally aluminum, aluminum is used as the material of the metal tube p.
これは、ケーブルｃと金属管ｐとのイオン化傾
向の差に起因する電蝕を防ぐためである。 This is to prevent electrolytic corrosion caused by a difference in ionization tendency between the cable c and the metal tube p.
しかし、アルミニウムの場合機械的強度に難点
があるため、第１図のような構造にした場合、金
属管ｐがくぼみ易いという問題が生じる。 However, since aluminum has a drawback in mechanical strength, if the structure shown in FIG. 1 is used, a problem arises in that the metal tube p is easily dented.
このように、従来の光フアイバが収納された金
属管は布設環境に応じて要求される複数の条件を
同時に満足し得ないという不都合があつた。 As described above, the conventional metal tube in which the optical fiber is housed has the disadvantage that it cannot simultaneously satisfy a plurality of conditions required depending on the installation environment.
さらに、金属管は、継ぎ目が溶接等により溶着
して形成されるため、溶接部にピンホール等の欠
陥が生じても、そのまま残存するという問題があ
つた。 Furthermore, since the joints of metal pipes are formed by welding or the like, there is a problem in that even if defects such as pinholes occur in the welded parts, they remain as they are.
本発明は、継ぎ目溶着後の金属パイプに真空メ
ツキを施すことにより上記問題点を解決しようと
いうもので、これを図面に示す実施例を参照しな
がら説明すると、ロールフオーミング等による造
管工程１に、テープサプライ２からの金属テープ
と、フアイバサプライ３からの光フアイバ４とを
供給して光フアイバ収納金属パイプ５を形成す
る。 The present invention aims to solve the above-mentioned problems by applying vacuum plating to metal pipes after seam welding.This will be explained with reference to an embodiment shown in the drawings. Then, the metal tape from the tape supply 2 and the optical fiber 4 from the fiber supply 3 are supplied to form the optical fiber storage metal pipe 5.
次いで、同パイプ５は、溶接工程６に送られこ
こで長手方向の継ぎ目７が溶着される。 The pipe 5 is then sent to a welding step 6 where a longitudinal seam 7 is welded.
溶着後の光フアイバ収納パイプ５は、さらにメ
ツキ工程６′に送られ、その外周に真空蒸着、ス
パツタリング、イオンプレーテイング等による真
空メツキが施されて金属被覆層８が形成される。 After welding, the optical fiber storage pipe 5 is further sent to a plating step 6', and a metal coating layer 8 is formed on its outer periphery by vacuum plating by vacuum evaporation, sputtering, ion plating, etc.
次いで、真空メツキ後の金属パイプ５は、引取
機９によつて引取られた後、巻取機１０によつて
巻取られる。 Next, the vacuum-plated metal pipe 5 is taken up by a take-up machine 9 and then wound up by a take-up machine 10.
かかる一連の工程は縦列的に一度に行なうのが
好ましい。 It is preferable that such a series of steps be carried out at once in tandem.
上記金属テープの材質としては、機械的強度の
大きいステンレス鋼、鋼、鉄等が好ましく、また
かかる金属の場合には、アルミニウムに比較して
溶接も容易であり、溶接条件も容易に把握でき
る。 The material for the metal tape is preferably stainless steel, steel, iron, etc., which have high mechanical strength, and such metals are easier to weld than aluminum, and the welding conditions can be easily determined.
アルミニウムの溶接では、酸化皮膜除去のため
のスリツターが必要であるが、これらの溶接で
は、金属テープの端面を滑らかにするという作業
も不要になる。 Aluminum welding requires a slitter to remove the oxide film, but these weldings also eliminate the need to smooth the edges of the metal tape.
上記金属被覆層８の材質としては、複合電力ケ
ーブルの主たる材質と同一のアルミニウムが選定
される。 As the material of the metal coating layer 8, aluminum, which is the same as the main material of the composite power cable, is selected.
ここでより具体的な例についで述べると、
具体例 １
外径６mmのステンレス鋼製金属パイプ５の外周
にアルミニウムを数μｍの厚さで真空蒸着し、こ
れを第１図に示すようにして架空地線として用い
た。 Here, we will discuss more specific examples: Specific Example 1 Aluminum is vacuum-deposited to a thickness of several μm on the outer periphery of a stainless steel metal pipe 5 with an outer diameter of 6 mm, and this is deposited as shown in Figure 1. Used as an overhead ground wire.
具体例 ２
外径５mmの鋼製金属パイプ５の外周にアルミニ
ウムを2000Å〜1μｍの厚さでイオンプレーテイ
ングによりメツキを行い、これを具体例１におけ
ると同様にして架空地線として用いた。Concrete Example 2 The outer periphery of a steel metal pipe 5 with an outer diameter of 5 mm was plated with aluminum to a thickness of 2000 Å to 1 μm by ion plating, and this was used as an overhead ground wire in the same manner as in Concrete Example 1.
尚、金属テープ及び金属被覆層８の材質として
は、上記金属に限らず、布設環境に応じて要求さ
れる条件を満足するものであれば適宜選択され
る。 The materials for the metal tape and the metal coating layer 8 are not limited to the above-mentioned metals, but may be selected as appropriate as long as they satisfy the conditions required depending on the installation environment.
以上のように本発明においては、継ぎ目溶接後
の金属パイプ外周に真空メツキをするようにした
から、同パイプ外表面の熱伝導性が良好となり、
この結果同パイプが局所的に加熱されても光フア
イバに熱的損傷が生じることがない。 As described above, in the present invention, since vacuum plating is applied to the outer periphery of the metal pipe after seam welding, the thermal conductivity of the outer surface of the pipe is improved,
As a result, even if the pipe is locally heated, no thermal damage will occur to the optical fiber.
また、金属パイプと金属被覆層とに異なる金属
を使用することが可能であるため、布設環境に応
じて要求される複数の条件を満足することが可能
となり、例えば、複合電力ケーブルに使用される
場合、金属被覆層にケーブルと同材質の金属を用
い、また金属パイプの材質として機械的強度の大
なる材質の金属を用いれば、ケーブルと金属被覆
層とのイオン化傾向の差に基因する浸食が防止さ
れることになると共に金属パイプが外力によつて
くぼむ等といつた不都合も解消されることにな
る。 In addition, since it is possible to use different metals for the metal pipe and the metal coating layer, it is possible to satisfy multiple conditions required depending on the installation environment. In this case, if the metal sheathing layer is made of the same metal as the cable, and the metal pipe is made of a metal with high mechanical strength, corrosion due to the difference in ionization tendency between the cable and the metal sheathing layer can be avoided. This will prevent the metal pipe from denting due to external force, and other inconveniences such as denting of the metal pipe will also be eliminated.
しかも、金属被覆層は真空メツキによつて形成
されるため、金属パイプが高温になるということ
がなく、従つて光フアイバの被覆層が熱的損傷を
受けるというようなことがない。 Moreover, since the metal coating layer is formed by vacuum plating, the metal pipe will not be exposed to high temperatures, and therefore the coating layer of the optical fiber will not be thermally damaged.
また、金属被覆層によつて溶着部の欠陥が補完
されると共に溶着面の酸化も防止されることにな
る。 Furthermore, the metal coating layer compensates for defects in the welded portion and also prevents oxidation of the welded surface.
第１図は複合電力ケーブルを示す断面図、第２
図は本発明に係る製造方法の工程を示す説明図、
第３図は同方法によつて得られた金属管収納光フ
アイバである。
４……光フアイバ、５……光フアイバ収納金属
パイプ、７……継ぎ目、８……金属被覆層。
Figure 1 is a cross-sectional view showing a composite power cable, Figure 2
The figure is an explanatory diagram showing the steps of the manufacturing method according to the present invention,
FIG. 3 shows an optical fiber housed in a metal tube obtained by the same method. 4... Optical fiber, 5... Optical fiber housing metal pipe, 7... Seam, 8... Metal coating layer.
Claims (1)
バを供給して光フアイバ収納金属パイプを形成
し、該パイプの継ぎ目を溶着した後、真空メツキ
により該金属パイプの外周に金属被覆層を設ける
ようにしたことを特徴とする金属管収納光フアイ
バの製造方法。 ２ 金属テープは、鉄、鋼またはステンレス鋼で
あり、また金属被覆層はアルミニウムであること
を特徴とする特許請求の範囲第１項記載の金属管
収納光フアイバの製造方法。 ３ 造管工程、光フアイバ収納金属パイプ継ぎ目
の溶着工程及び真空メツキ工程を縦列状態にして
一連に実施することを特徴とする特許請求の範囲
第１項または第２項記載の金属管収納光フアイバ
の製造方法。[Claims] 1. An optical fiber is supplied together with a plate-shaped metal tape to a pipe-making process to form an optical fiber-accommodating metal pipe, and after welding the joints of the pipe, vacuum plating is applied to the outer periphery of the metal pipe. A method for manufacturing an optical fiber housed in a metal tube, characterized in that a metal coating layer is provided. 2. The method of manufacturing an optical fiber housed in a metal tube according to claim 1, wherein the metal tape is made of iron, steel, or stainless steel, and the metal coating layer is made of aluminum. 3. The optical fiber encased in a metal tube according to claim 1 or 2, characterized in that the tube making process, the welding process of the joint of the optical fiber encased metal pipe, and the vacuum plating process are carried out in series in tandem. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56030928A JPS57154202A (en) | 1981-03-04 | 1981-03-04 | Manufacture of optical fiber stored in metallic conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56030928A JPS57154202A (en) | 1981-03-04 | 1981-03-04 | Manufacture of optical fiber stored in metallic conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57154202A JPS57154202A (en) | 1982-09-24 |
| JPS6310805B2 true JPS6310805B2 (en) | 1988-03-09 |
Family
ID=12317337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56030928A Granted JPS57154202A (en) | 1981-03-04 | 1981-03-04 | Manufacture of optical fiber stored in metallic conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57154202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016217467A (en) * | 2015-05-21 | 2016-12-22 | 大陽ステンレススプリング株式会社 | Wiper arm bearing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9919399D0 (en) * | 1999-08-18 | 1999-10-20 | Corning Communications Ltd | Electric conductors incorporating optical fibres |
| DE10006806A1 (en) * | 2000-02-15 | 2001-08-16 | Alcatel Sa | Metallic optical aerial cable |
| CN104619055B (en) * | 2014-12-17 | 2016-05-11 | 东南大学 | A kind of local heat method in vacuum |
-
1981
- 1981-03-04 JP JP56030928A patent/JPS57154202A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016217467A (en) * | 2015-05-21 | 2016-12-22 | 大陽ステンレススプリング株式会社 | Wiper arm bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57154202A (en) | 1982-09-24 |
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