JPS6366031B2 - - Google Patents
Info
- Publication number
- JPS6366031B2 JPS6366031B2 JP55178311A JP17831180A JPS6366031B2 JP S6366031 B2 JPS6366031 B2 JP S6366031B2 JP 55178311 A JP55178311 A JP 55178311A JP 17831180 A JP17831180 A JP 17831180A JP S6366031 B2 JPS6366031 B2 JP S6366031B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- oxide film
- copper
- alcohol
- induction coil
- 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
- 239000004020 conductor Substances 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 description 11
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 5
- 239000005751 Copper oxide Substances 0.000 description 4
- 229910000431 copper oxide Inorganic materials 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
本発明は導体端部の酸化被膜除去方法の改良に
係り、特に酸化銅による素線絶縁の施されたケー
ブル銅導体を接続するにあたり、導体端部の酸化
被膜を除去するのに適した酸化被膜除去方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for removing an oxide film at the end of a conductor, and in particular, a method for removing an oxide film at the end of a conductor when connecting a cable copper conductor insulated with copper oxide. This invention relates to an oxide film removal method suitable for
近年、電力需要の増大とともに、電力ケーブル
の導体は大型サイズ化する傾向にある。このよう
な大型サイズ導体においては、表皮効果の低減を
はかるために素線絶縁を施すことが行なわれてお
り、その一方法として銅素線の表面に酸化銅によ
る絶縁被膜を形成することが行なわれている。 In recent years, as the demand for electric power increases, the conductors of power cables tend to become larger in size. In such large-sized conductors, wire insulation is applied to reduce the skin effect, and one method is to form an insulating film of copper oxide on the surface of the copper wire. It is.
このような酸化銅による素線絶縁を施した場
合、導体接続の際には各素線の酸化被膜を除去す
る必要がある。 When insulating the wires with copper oxide, it is necessary to remove the oxide film of each wire when connecting conductors.
従来、このような酸化被膜の除去方法として
は、例えば導体の接続に要する端部の各素線の酸
化被膜を紙やすりにより１本ずつ除去する方法
や、導体端部に酸洗滌、アルカリ洗滌を施した後
水洗して乾燥する方法が知られている。 Conventionally, methods for removing such oxide films include, for example, removing the oxide film from each strand of wire at the end required for conductor connection one by one using sandpaper, or washing the ends of the conductor with acid or alkali. A method of washing with water and drying after application is known.
しかしこれらの方法では、いずれも作業性が悪
く、さらに後者においては酸液（たとえば塩酸、
硫酸）を用いるために取扱いに注意を要するとい
う難点があつた。 However, all of these methods have poor workability, and the latter requires acid solutions (e.g. hydrochloric acid,
The problem was that it required careful handling because it used sulfuric acid.
本発明は、かかる従来の欠点を解消すべくなさ
れたもので、危険性が少なく、作業むらがなく、
かつ短時間で酸化被膜を除去できる酸化被膜除去
方法を提供するものである。 The present invention was made in order to eliminate such conventional drawbacks, and it is less dangerous, has no unevenness in work,
The present invention also provides an oxide film removal method that can remove the oxide film in a short time.
以下本発明の詳細を図に示す一実施例について
説明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to an embodiment shown in the drawings.
図において符号１は、円形の導体挿入口２、ア
ルコール注入配管３、アルコール排出配管４を備
えた密閉可能容器を示している。上記アルコール
注入配管３およびアルコール排出配管４にはそれ
ぞれ開閉弁５，６が設けられており、アルコール
を任意に注入、排出可能とされている。また導体
挿入口２の延長上には、導体挿入口２と同軸的に
誘導コイル７が配置されており、その電源端子８
は、容器１外に導かれ高周波電源９に接続可能と
されている。 In the figure, reference numeral 1 indicates a sealable container provided with a circular conductor insertion port 2, an alcohol injection pipe 3, and an alcohol discharge pipe 4. The alcohol injection pipe 3 and the alcohol discharge pipe 4 are provided with on-off valves 5 and 6, respectively, so that alcohol can be injected and discharged as desired. Further, on the extension of the conductor insertion port 2, an induction coil 7 is arranged coaxially with the conductor insertion port 2, and its power terminal 8 is disposed coaxially with the conductor insertion port 2.
is guided outside the container 1 and can be connected to a high frequency power source 9.
このように構成された装置を用いて、酸化被膜
の除去は以下述べるようにして行なわれる。 Using the apparatus configured as described above, the oxide film is removed as described below.
すなわち、まず段剥して露出させた導体端部１
０を導体挿入口２から誘導コイル７内に同心的に
挿入し、導体端部１０と誘導コイル７との相対位
置を任意手段により固定した後、導体端部１０と
導体挿入口２間の間隙を適当なシール手段１１に
よりシールする。 That is, first, the conductor end 1 which was exposed by peeling off the steps.
0 concentrically into the induction coil 7 from the conductor insertion port 2, and after fixing the relative position of the conductor end 10 and the induction coil 7 by any means, the gap between the conductor end 10 and the conductor insertion port 2 is are sealed by suitable sealing means 11.
次に、誘導コイル７の両端を高周波電源９に接
続して導体端部１０を200℃程度に加熱し、アル
コール注入口１２から例えばエチルアルコールを
注入し、開閉弁５，６の開度を調整して容器１内
がエチルアルコール雰囲気となるようにする。 Next, both ends of the induction coil 7 are connected to a high frequency power source 9, the conductor end 10 is heated to about 200°C, and ethyl alcohol, for example, is injected from the alcohol inlet 12 to adjust the opening degree of the on-off valves 5 and 6. to create an ethyl alcohol atmosphere inside the container 1.
このように、アルコール雰囲気中で高温に加熱
される結果、導体端部の素線上に形成された酸化
銅は、アルコールの還元作用により次のように反
応して銅にまで還元される。 As a result of being heated to a high temperature in an alcohol atmosphere, the copper oxide formed on the wire at the end of the conductor reacts as follows due to the reducing action of alcohol and is reduced to copper.
CuO＋C2H5OH→Cu＋CH3CHO＋H2O
このようにして形成された銅表面は、アルコー
ルの洗浄作用も加わつて、清浄となつているか
ら、導体接続時の接触抵抗も小さい。 CuO+C 2 H 5 OH→Cu+CH 3 CHO+H 2 O The copper surface formed in this way is clean due to the cleaning action of alcohol, so the contact resistance when connecting conductors is low.
以上述べたように本発明の銅導体端部の酸化被
膜除去方法によれば、毒性や劇薬性のない薬品を
用いるので作業上の危険性が少なく、また加熱は
誘導加熱により均一に行なうことができるので作
業むらがなく、しかも火気を使用しないので安全
であり、短時間に導体端部の酸化被膜の除去を行
なうことができる。 As described above, according to the method of removing an oxide film on the end of a copper conductor according to the present invention, there is little danger in the work because a non-toxic or powerful chemical is used, and heating can be performed uniformly by induction heating. It is possible to remove the oxide film from the end of the conductor in a short time, and it is safe because no flame is used.
図面は本発明による銅導体端部の酸化被膜除去
方法に用いる装置を概略的に示す縦断面図であ
る。
１……容器、７……誘導コイル、９……高周波
電源、１０……導体端部。
The drawing is a vertical sectional view schematically showing an apparatus used in the method of removing an oxide film on the end of a copper conductor according to the present invention. DESCRIPTION OF SYMBOLS 1... Container, 7... Induction coil, 9... High frequency power supply, 10... Conductor end.
Claims (1)
化被膜を除去するにあたり、前記導体端部の外周
に誘導コイルを配置し、これらの外周を密閉容器
で囲繞し、前記密閉容器内をアルコール雰囲気と
すると共に、前記誘導コイルを高周波電源に接続
して前記導体端部を加熱することを特徴とする銅
導体端部の酸化被膜除去方法。1. When removing the oxide film on the end of a copper conductor having an oxide film on the surface, an induction coil is placed around the outer periphery of the end of the conductor, the outer periphery of these is surrounded by a closed container, and the inside of the closed container is filled with an alcohol atmosphere. A method for removing an oxide film on an end of a copper conductor, characterized in that the induction coil is connected to a high frequency power source to heat the end of the conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55178311A JPS57103280A (en) | 1980-12-17 | 1980-12-17 | Method of removing oxide coating for copper conductor end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55178311A JPS57103280A (en) | 1980-12-17 | 1980-12-17 | Method of removing oxide coating for copper conductor end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57103280A JPS57103280A (en) | 1982-06-26 |
| JPS6366031B2 true JPS6366031B2 (en) | 1988-12-19 |
Family
ID=16046253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55178311A Granted JPS57103280A (en) | 1980-12-17 | 1980-12-17 | Method of removing oxide coating for copper conductor end |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57103280A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7171988B2 (en) * | 2019-11-05 | 2022-11-16 | ゲイツ・ユニッタ・アジア株式会社 | Cable end processing device and cable end processing method |
-
1980
- 1980-12-17 JP JP55178311A patent/JPS57103280A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57103280A (en) | 1982-06-26 |
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