JPS6050014B2 - Surface treatment method for foamed polyethylene coated floating wire - Google Patents
Surface treatment method for foamed polyethylene coated floating wireInfo
- Publication number
- JPS6050014B2 JPS6050014B2 JP10467480A JP10467480A JPS6050014B2 JP S6050014 B2 JPS6050014 B2 JP S6050014B2 JP 10467480 A JP10467480 A JP 10467480A JP 10467480 A JP10467480 A JP 10467480A JP S6050014 B2 JPS6050014 B2 JP S6050014B2
- Authority
- JP
- Japan
- Prior art keywords
- foamed polyethylene
- surface treatment
- electric wire
- treatment method
- vibrator
- 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
- Insulated Conductors (AREA)
- Manufacturing Of Electric Cables (AREA)
Description
【発明の詳細な説明】
海中で作業する海洋機器等に接続する電線は、電線比重
を海水比重以下として、浮上させて使用することが多く
、被覆には、比重の小さい発泡ポーリエチレンを用いる
のが有効となつている。[Detailed Description of the Invention] Electric wires connected to marine equipment, etc. that work underwater are often floated and used with the wire specific gravity being lower than the specific gravity of seawater, and it is recommended to use foamed polyethylene, which has a low specific gravity, for the coating. is in effect.
「第１図」の１０は電線の全体を示す。１２は線心、１
４は被覆で、発泡ポリエチレンからなる。10 in "Fig. 1" indicates the entire electric wire. 12 is the wire core, 1
4 is a covering made of foamed polyethylene.
この電線１０の表面は、発泡ポリエチレンであるから、
平滑でない。Since the surface of this electric wire 10 is made of foamed polyethylene,
Not smooth.
そこで、機器ケーブル導入部に、防水処理を施すときな
ど、その表面を平滑にする必要がある。その理由は、機
器ケースと電線との間の防水は、モールドＥＰゴムなど
によつ一ー ・一’−１１−゛力、・、Ｊ、♂ 菅仝白
主ヨ、ｆｌく工遥−７、ｆ、−ぃと、モールドゴムと電
線との間の密着性が悪く、機器が相当な深度にある場合
、高い水圧に耐えきれずに、水の侵入を許してしまうよ
うな事態が発生するからである。その場合、従来は、電
線１０の表面にポリエチレンのテープを巻き、加熱融着
して、平滑面を得ていた。Therefore, when waterproofing the equipment cable introduction part, it is necessary to make the surface smooth. The reason for this is that waterproofing between the equipment case and the wires is achieved by using molded EP rubber, etc. , f, - If the adhesion between the molded rubber and the electric wire is poor, and the equipment is located at a considerable depth, it may not be able to withstand high water pressure and may allow water to enter. It is from. In that case, conventionally, a polyethylene tape was wrapped around the surface of the electric wire 10 and heat-fused to obtain a smooth surface.
しかし、この方法には、次の欠点がある。However, this method has the following drawbacks.
１ 加熱融着のとき、金型が必要になる。1. A mold is required for heat fusion.
２ 金型を使わないで、耐熱テープを使うときは、後で
サンドペーパーなどで表面を平らにしなければならない
。2. When using heat-resistant tape without using a mold, the surface must be flattened with sandpaper afterwards.
３ テープ巻きに時間がかかる。3. It takes a long time to wind the tape.
４ 加熱融着作業は熟練がいる。4. Heat fusing work requires skill.
本発明は、被覆１４の発泡ポリエチレンの性質を利用し
て、簡単に平滑面を作る方法に関するものである。The present invention relates to a method for easily creating a smooth surface by utilizing the properties of the foamed polyethylene of the coating 14.
本発明の要点は、次のとおりである。The main points of the present invention are as follows.
１ まず、平滑な内面を持つ金属のパイプを、電線１０
の、平滑な面を得たいところの上にかぶせる。1 First, connect a metal pipe with a smooth inner surface to an electric wire 10.
Place it over the area where you want a smooth surface.
２ 次に、パイプの外から被覆１４を加熱する。2. Next, heat the coating 14 from outside the pipe.
すると、発泡ポリエチレン被覆は微細な再発泡を起して
膨張する。ところが、その上をパイプによつて押えられ
ているので、表面は加圧状態となり、平滑となる。３次
いでバイブを抜取れば、平滑な表面を持つた発泡ポリエ
チレン被覆浮上電線が得られる。Then, the foamed polyethylene coating undergoes fine re-foaming and expands. However, since the top is pressed down by the pipe, the surface is under pressure and becomes smooth. 3. Next, when the vibrator is removed, a foamed polyethylene-covered floating wire with a smooth surface is obtained.
実施例（第２、第３図）２０は、たとえばアルミニウム
合金などの金属のバイブである。The embodiment (FIGS. 2 and 3) 20 is a vibrator made of metal, such as an aluminum alloy.
その内面は平滑である。また、その内径は電線１０の外
径より少し大きい。このバイブ２０を、電線１０上の、
平滑面を得ようとする所にかぶせる。そしてたとえばバ
ンドヒータ２２などによつてバイブ２０の外側から、被
覆１４の発泡ポリエチレンを加熱する。温度は１６０℃
、時間は１紛程度である。すると被覆１４の発泡ポリエ
チレンの中に残留していた発泡剤が分解し、発泡ポリエ
チレンが再発泡する。Its inner surface is smooth. Further, its inner diameter is slightly larger than the outer diameter of the electric wire 10. This vibrator 20 is placed on the electric wire 10,
Cover the area where you want to get a smooth surface. Then, the foamed polyethylene of the covering 14 is heated from the outside of the vibrator 20 using, for example, a band heater 22 or the like. The temperature is 160℃
, it takes about 1 minute. Then, the foaming agent remaining in the foamed polyethylene of the covering 14 is decomposed, and the foamed polyethylene is re-foamed.
その結果被覆１４は膨張する。しかしその外側はバイブ
２０で押えられているので、バイブ２０に強く圧接し、
かつ表面はいくらか溶融するので、気泡がつぶれて、バ
イブ２０に接する面が平滑になる。冷却後、バイブ２０
を除くと平滑面が得られ；る。As a result, the coating 14 expands. However, since the outside is pressed by the vibrator 20, it is strongly pressed against the vibrator 20,
In addition, since the surface is somewhat melted, the bubbles are collapsed and the surface in contact with the vibrator 20 becomes smooth. After cooling, vibrator 20
By removing , a smooth surface is obtained.
発明の効果 （１）金型がいらない。Effect of the invention (1) No mold is required.
バイブ２０は入手しやすい。（２）熟練を必要としない
。Vibe 20 is easy to obtain. (2) No skill required.
（３）テープ巻きがいらないから、処理する時間が短い
。(3) Processing time is short because there is no need to wrap tape.
（４） バイブ２０に沿つた平滑面が得られる。(4) A smooth surface along the vibrator 20 can be obtained.
すなわち、バイブ２０の内径を変えることによりできる
平滑面の太さを変えることができる（ただし限られた範
囲内）。また、バイブ２０の内面が、非円筒形ならば、
それに応じた平滑面が得られる。That is, by changing the inner diameter of the vibrator 20, the thickness of the smooth surface can be changed (within a limited range). Moreover, if the inner surface of the vibrator 20 is non-cylindrical,
A correspondingly smooth surface can be obtained.
第１図は発泡ポリエチレン電線の説明図、第２図と第３
図は、この発明の方法の実施例の工程を順に示す説明図
。
１０・・・・・・電線、１４・・・・・被覆、２０・・
・・・バイブ。Figure 1 is an explanatory diagram of foamed polyethylene electric wire, Figures 2 and 3
The figures are explanatory diagrams sequentially showing the steps of an embodiment of the method of the present invention. 10... Electric wire, 14... Covering, 20...
...Vibe.
Claims (1)
記パイプの外から加熱し、被覆の発泡ポリエチレンに再
発泡による膨張を行なわせて、その表面を前記金属パイ
プの内面に圧接させることによつて、発泡ポリエチレン
被覆の表面を平滑ならしめ、その後、前記パイプを抜取
ること、 を特徴とする、発泡ポリエチレン被覆浮上電線の表面処
理方法。[Claims] 1. A metal pipe with a smooth inner surface is placed over an electric wire, and the pipe is heated from the outside to cause the foamed polyethylene covering to expand due to re-foaming, so that the surface of the metal pipe becomes the same as that of the metal pipe. 1. A method for surface treatment of a foamed polyethylene-coated floating electric wire, comprising: smoothing the surface of the foamed polyethylene coating by pressing the foamed polyethylene coating against the inner surface, and then removing the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10467480A JPS6050014B2 (en) | 1980-07-30 | 1980-07-30 | Surface treatment method for foamed polyethylene coated floating wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10467480A JPS6050014B2 (en) | 1980-07-30 | 1980-07-30 | Surface treatment method for foamed polyethylene coated floating wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5730216A JPS5730216A (en) | 1982-02-18 |
| JPS6050014B2 true JPS6050014B2 (en) | 1985-11-06 |
Family
ID=14387012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10467480A Expired JPS6050014B2 (en) | 1980-07-30 | 1980-07-30 | Surface treatment method for foamed polyethylene coated floating wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050014B2 (en) |
-
1980
- 1980-07-30 JP JP10467480A patent/JPS6050014B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5730216A (en) | 1982-02-18 |
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