JPS6129211B2 - - Google Patents
Info
- Publication number
- JPS6129211B2 JPS6129211B2 JP54099034A JP9903479A JPS6129211B2 JP S6129211 B2 JPS6129211 B2 JP S6129211B2 JP 54099034 A JP54099034 A JP 54099034A JP 9903479 A JP9903479 A JP 9903479A JP S6129211 B2 JPS6129211 B2 JP S6129211B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- cable conductor
- shower
- treatment liquid
- 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
Links
Landscapes
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Description
【発明の詳細な説明】
この発明は、素線絶縁導体のジヨイント時の絶
縁皮膜除去方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing an insulating film at the time of jointing an insulated wire conductor.
背景と目的
電力ケーブルの銅導体の素線表面に、酸化第二
銅の、非常に薄い（たとえば１μｍていど）皮膜
を形成し、それで素線絶縁を行なうことが、提案
されている。Background and Purpose It has been proposed to insulate the copper conductors of power cables by forming a very thin (for example, 1 μm) film of cupric oxide on the surface of the wires.
このようにしたケーブル導体を、スリーブで圧
縮接続するときは、上記の酸化銅絶縁皮膜を、前
もつて除去しておく必要がある。 When such a cable conductor is compressed and connected using a sleeve, it is necessary to remove the copper oxide insulating film beforehand.
この発明は、その除去方法に関するものであ
る。 This invention relates to a method for removing it.
構 成
上記のように素線絶縁を行つたケーブル導体
を、加熱し、それから、皮膜除去処理液を、シヤ
ワー状にかけることを特徴とする。Structure: The cable conductor insulated as described above is heated, and then a film removal treatment liquid is applied in a shower-like manner.
ケーブル導体の加熱は、反応処理を促進するた
めに行なう。加熱は、ガスバーナー、誘導加熱な
どで行なう。加熱温度は、ケーブル絶縁体に悪影
響を及ぼさない範囲で、高い方がよい。60〜90℃
が適当である。 Heating of the cable conductor is done to accelerate the reaction process. Heating is performed using a gas burner, induction heating, or the like. The higher the heating temperature, the better, as long as it does not adversely affect the cable insulation. 60~90℃
is appropriate.
酸化皮膜除去の処理液には、
(1) 酸化第二銅を還元する、還元性液体、たとえ
ば次亜リン酸
(2) 溶かして、洗い落す、弱酸性溶液、たとえば
希塩酸、希硫酸、などを使う。The treatment solution for removing the oxide film includes (1) a reducing liquid that reduces cupric oxide, such as hypophosphorous acid (2) a weakly acidic solution that dissolves and washes it off, such as dilute hydrochloric acid, dilute sulfuric acid, etc. use.
この処理液を加熱（たとえば60〜80℃ていど）
しておけば、皮膜除去処理を、より促進させるこ
とができる。 Heat this treatment solution (e.g. 60-80℃)
By doing so, the film removal process can be further accelerated.
処理液をシヤワー状にかけるには、たとえば次
のようにする（第１図）。すなわち、容器１０内
の処理液１２を、ポンプ１４でシヤワー筒１６に
送る。シヤワー筒１６は円筒形で、内側に処理液
を噴出する。 To shower the treatment liquid, for example, do the following (Figure 1). That is, the processing liquid 12 in the container 10 is sent to the shower tube 16 by the pump 14. The shower cylinder 16 has a cylindrical shape and sprays the processing liquid inside.
上記のように予備加熱したケーブル導体１８の
先端を、シヤワー筒１６内に差し入れる。素線表
面の酸化銅皮膜は、処理液に溶けて、流れ落ち
る。あるいは、酸素を失つて銅になる。 The tip of the cable conductor 18 preheated as described above is inserted into the shower tube 16. The copper oxide film on the surface of the wire dissolves in the treatment liquid and flows away. Alternatively, it loses oxygen and becomes copper.
２０は、ケーブル絶縁体を示す。 20 indicates a cable insulator.
処理液をシヤワー状にかける理由は、次のとお
り、すなわち、素線絶縁をするケーブル導体は、
太い。「第２図」のように、曲げて、必要部分だ
け処理液１２に浸すというわけには、いかない。
「第３図」のように、水平に（あるいはそれに近
い斜めに）入れると、液圧がかかつて、導体１８
内の不必要な部分まで、処理液が多量に侵入す
る。 The reason why the treatment liquid is showered is as follows.
thick. It is not possible to bend it and immerse only the necessary parts in the processing liquid 12 as shown in "Fig. 2".
As shown in "Figure 3", if it is inserted horizontally (or at an angle close to that), the hydraulic pressure will increase and the conductor 18
A large amount of processing liquid enters unnecessary parts inside the machine.
シヤワー状にかければ、ほとんど侵入しない。
また、皮膜除去も、液に浸す方式と同程度に、十
分にできる。 If you apply a shower, it will hardly invade.
In addition, the film can be removed as effectively as with the immersion method.
上記処理完了後、公知の方法で、水洗、乾燥す
る。それから圧縮接続する。 After the above treatment is completed, it is washed with water and dried by a known method. Then make a compression connection.
実施例
ケーブル導体の構成は、素線径
2.8mmφ×364本。酸化第二銅皮膜の厚さは１μ
ｍ。これを、60℃に加熱した後、シヤワー筒１６
内に差し込み、60℃に加熱した処理液、次亜リン
酸10％水溶液をシヤワー状にかけた、約５〜10分
で、より線内部まで皮膜を完全に除去できた。Example The cable conductor consists of 364 wires with a diameter of 2.8 mm. The thickness of cupric oxide film is 1μ
m. After heating this to 60℃, shower cylinder 16
The coating was completely removed to the inside of the stranded wire in about 5 to 10 minutes by showering the treatment solution heated to 60°C and a 10% hypophosphorous acid aqueous solution.
発明の効果
(1) ケーブル導体を加熱するので、処理時間が短
縮される。Effects of the invention (1) Since the cable conductor is heated, processing time is shortened.
(2) 処理液をシヤワー状にかけるので、上記のよ
うに、ケーブル導体内へ処理液が侵入しない。
特にOFケーブルでは有利になる。(2) Since the treatment liquid is applied in a shower, the treatment liquid does not enter the cable conductor as described above.
This is especially advantageous for OF cables.
第１図はこの発明の方法の説明図、第２図と第
３図は、ケーブル導体を処理液に浸す、この発明
以外の方式の説明図である。
１２……皮膜除去処理液、１６……シヤワー
筒、１８……ケーブル導体。
FIG. 1 is an explanatory diagram of the method of the present invention, and FIGS. 2 and 3 are explanatory diagrams of a method other than the present invention in which a cable conductor is immersed in a treatment liquid. 12...Film removal treatment liquid, 16...Shower tube, 18...Cable conductor.
Claims (1)
素線絶縁を行つた電力ケーブル導体を、加熱した
後、それに、皮膜除去処理液を、シヤワー状にか
けることを特徴とする、絶縁皮膜の除去方法。1 Create a film of cupric oxide on the surface of the wire,
A method for removing an insulation film, which comprises heating a power cable conductor that has been insulated and then showering a film removal treatment liquid thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9903479A JPS5625320A (en) | 1979-08-02 | 1979-08-02 | Method of removing insulating coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9903479A JPS5625320A (en) | 1979-08-02 | 1979-08-02 | Method of removing insulating coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5625320A JPS5625320A (en) | 1981-03-11 |
| JPS6129211B2 true JPS6129211B2 (en) | 1986-07-05 |
Family
ID=14236099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9903479A Granted JPS5625320A (en) | 1979-08-02 | 1979-08-02 | Method of removing insulating coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5625320A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60234410A (en) * | 1984-04-28 | 1985-11-21 | 古河電気工業株式会社 | Method of removing insulating film of strand insulator twisted conductor |
| JPS63287500A (en) * | 1985-03-18 | 1988-11-24 | ユ−オ−ピ− インコ−ポレイテツド | Separation of arabinose |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336503B2 (en) * | 1972-08-17 | 1978-10-03 |
-
1979
- 1979-08-02 JP JP9903479A patent/JPS5625320A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5625320A (en) | 1981-03-11 |
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