JPS6139384A - Method of connecting conductor - Google Patents
Method of connecting conductorInfo
- Publication number
- JPS6139384A JPS6139384A JP16012284A JP16012284A JPS6139384A JP S6139384 A JPS6139384 A JP S6139384A JP 16012284 A JP16012284 A JP 16012284A JP 16012284 A JP16012284 A JP 16012284A JP S6139384 A JPS6139384 A JP S6139384A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- welding
- cooling box
- conductors
- cooling
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 title claims description 49
- 238000000034 method Methods 0.000 title claims description 18
- 238000003466 welding Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 19
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 8
- 239000012212 insulator Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001669573 Galeorhinus galeus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は導体の接続方法、特に大サイズのケーブル用導
体の接続に好適な導体の接続方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for connecting conductors, and particularly to a method for connecting conductors suitable for connecting conductors for large-sized cables.
［発明の技術的背景］
従来から、ケーブル導体の接続方法として、圧縮スリー
ブを用いる方法か溶接による方法が知られている。[Technical Background of the Invention] Conventionally, methods using compression sleeves or welding have been known as methods for connecting cable conductors.
圧縮スリーブによる方法は、接続時に加熱を必要とせず
絶縁体を劣化させることがない反面、接続部の外径が導
体外径より大きくなり、従って仕上がり外径が大きくな
る他、接続部の機械的、電気的性質が低下し易い欠点を
有する。The method using a compression sleeve does not require heating during connection and does not deteriorate the insulator, but on the other hand, the outside diameter of the connection part is larger than the outside diameter of the conductor, so the finished outside diameter becomes larger, and the mechanical , has the disadvantage that electrical properties tend to deteriorate.
これに対しＣ溶接による方法は、比較的良好な接続部を
得ることができるが、溶接時の熱により接続部近傍の絶
縁体を劣化させる危険性があり、これを防止覆るために
接続部近傍の導体外周を強制冷却する方法が知られてい
る。On the other hand, the method using C welding can obtain a relatively good connection, but there is a risk of deteriorating the insulator near the connection due to the heat during welding. A method of forcibly cooling the outer periphery of a conductor is known.
この強制冷却の方法としては、第４図に示すように、接
続すべき一対の導体１．１′の端部を突合せ、この突合
せ部をＸ状に切除するとともに、導体端部近傍にこれを
囲繞する冷却箱２．２を取付け、この箱内に矢印方向に
通水しながら、切除部をＴＩＧ溶接して肉盛り部３を形
成するものである。この冷ｆＪＩ箱２は、第５図に示す
ように２つ割り構造を有しており、導体との着脱を容易
にしている。As shown in Fig. 4, this forced cooling method involves butting the ends of a pair of conductors 1.1' to be connected, cutting off the butt part in an X shape, and placing it near the ends of the conductors. A surrounding cooling box 2.2 is attached, and the cutout is TIG welded to form the built-up portion 3 while water is being passed through the box in the direction of the arrow. The cold fJI box 2 has a two-part structure as shown in FIG. 5, which facilitates attachment and detachment of conductors.
［背景技術の問題点］
しかしながら上記の接続方法においては、大サイズ導体
の場合水量を増大させても溶接部から２００龍の位置に
おいて導体の温度は１５０〜１８０℃にも達し、絶縁体
へ悪影響を小さくすることは困難であった。[Problems in the background art] However, in the above connection method, even if the amount of water is increased in the case of a large-sized conductor, the temperature of the conductor reaches 150 to 180 degrees Celsius at a position 200 degrees from the welding part, which has a negative effect on the insulator. It was difficult to make it smaller.
さらにＴＩＧ溶接の場合、溶接トープを被溶接部材へ接
近させないとアークを発生しないため、切除部（カット
部）のカット角度を大ぎく取らねばならず、必然的に溶
接時間も長くなり、絶縁体の熱による劣化を生じ易く、
特に大サイズ導体の場合には熱拡散速度も大きくなるた
めその溶接接続には相当の熟練を要するという欠点を有
する。Furthermore, in the case of TIG welding, an arc is not generated unless the welding tope is brought close to the workpiece, so the cut angle of the cut part must be made large, which inevitably lengthens the welding time, and the insulator is susceptible to deterioration due to heat,
Particularly in the case of large-sized conductors, the heat diffusion rate increases, so welding and connecting them requires considerable skill.
さらにその溶接面積も大きくなるため酸化物やスラグを
巻き込み易く、接続部の性質も十分満足の得られるもの
ではなかった。Furthermore, since the welding area becomes large, oxides and slag are likely to be involved, and the properties of the joint are not fully satisfactory.
［発明の目的］
本発明は以上の難点を解消するためになされたもので、
溶接時間を短縮するとともに、溶接部近傍の導体を効率
よく冷却することにより絶縁体への熱影響をなくし、か
つ良好な接続部を容易に得ることのできる導体の接続方
法を提供することを目的とする。[Object of the invention] The present invention has been made to solve the above-mentioned difficulties.
The purpose of the present invention is to provide a method for connecting conductors that reduces welding time, efficiently cools the conductor near the weld, eliminates thermal effects on the insulator, and easily obtains a good connection. shall be.
［発明の概要］
すなわち本発明の導体の接続方法は、接続すべき一対の
導体端部を所定間隙をおいて対向配置するとともに、前
記導体端部近傍の導体外周にこれを囲繞する冷却箱を取
付け、この冷却箱内に炭酸ガスを噴出させて導体を冷却
しながら、前記導体端部をＭＩＧ溶接することを特徴と
している。[Summary of the Invention] That is, the method for connecting conductors of the present invention includes arranging a pair of conductor ends to be connected facing each other with a predetermined gap therebetween, and providing a cooling box surrounding the outer periphery of the conductor near the conductor ends. The present invention is characterized in that the ends of the conductors are MIG welded while the conductors are cooled by ejecting carbon dioxide gas into the cooling box.
［発明の実施例］ 以下本発明の一実施例を図面に基づき説明する。[Embodiments of the invention] An embodiment of the present invention will be described below based on the drawings.
第１図は本発明の導体の接続方法を示す溶接部の側面図
を示したもので、接続すべき一対の銅撚線からなる導体
１．１′の端面を導体の軸にほぼ垂直な面で切断して、
この端面を離間して配置し、カーボンあるいはセラミッ
クからなる筒体３によって支持する。Fig. 1 shows a side view of a welded part illustrating the method of connecting conductors according to the present invention. Cut it with
These end faces are placed apart and supported by a cylinder 3 made of carbon or ceramic.
筒体３は導体外周への着脱を容易にするために２つ割り
構造を有しており、溶接部の導体端部を囲繞する空ｆｌ
！１３ａ内に溶融金属を保持し、かつガスシールの役目
を果す。The cylindrical body 3 has a two-part structure to facilitate attachment and detachment to the outer periphery of the conductor, and has an empty fl surrounding the conductor end at the welding part.
! It holds the molten metal within 13a and also serves as a gas seal.
この空間３ａは上部が開放とされ、この開放部３ｂより
溶接棒４を挿入してＭＩＧ溶接を行なうゎこの際空間３
ａは導体外径より若干大なる内径を有するためスラグは
外方へ押出され、かつ開放部３ｂ面積も小さいため溶接
部に酸化物かスラッジの巻き込みを生ずることを防止で
き゛る。This space 3a is open at the top, and the welding rod 4 is inserted through this open part 3b to perform MIG welding.At this time, the space 3
Since a has an inner diameter slightly larger than the outer diameter of the conductor, the slag is pushed outward, and since the area of the open portion 3b is also small, it is possible to prevent oxides or sludge from being caught in the welding part.
導体１．１′の溶接部近傍には、導体外周を包囲し、一
端側が開放とされた分割可能な冷却箱５５′が取付けら
れ、この冷却箱の円筒状外壁に設けられたノズル６．６
′を介してボンベ７よりＣＯ２ガスが噴出される。なお
、８．８′は耐熱性材料からなるシール剤であり、これ
に除熱剤（例えばクールヒート）を用いることもできる
。A divisible cooling box 55' that surrounds the outer periphery of the conductor and is open at one end is installed near the welded part of the conductor 1.1', and a nozzle 6.6 is provided on the cylindrical outer wall of this cooling box.
CO2 gas is ejected from the cylinder 7 through '. Note that 8.8' is a sealant made of a heat-resistant material, and a heat removal agent (for example, Cool Heat) can also be used for this.
ノズル６．６′より冷却箱５．５′内に噴出されたＣＯ
２ガスは急激な膨張によって冷却され、ドライアイス粒
となって導体上に付着し、溶接部からの熱により急速に
気化して導体を冷却する。CO ejected from nozzle 6.6' into cooling box 5.5'
The two gases are cooled by rapid expansion, become dry ice particles that adhere to the conductor, and are rapidly vaporized by the heat from the welding area, cooling the conductor.
第２図は冷却箱９の他の構造を示したもので、２つ割り
構造の外筒１０と、導体ど外筒との間を閉塞する両側壁
とから構成され、外筒には０．０２ガスを噴出するため
のノズル１１およびガス放出孔１２が設けられている。FIG. 2 shows another structure of the cooling box 9, which is composed of an outer cylinder 10 with a two-part structure and both side walls that close the space between the conductor and the outer cylinder. A nozzle 11 and a gas discharge hole 12 are provided for spouting the 02 gas.
この際、導体上にシリコーンゴム等の耐熱テープ１３を
巻回し、ガスリークを防止するとともに弱い断熱効果に
よりドライアイス粒の生成を促すことが効果的である。At this time, it is effective to wrap a heat-resistant tape 13 made of silicone rubber or the like over the conductor to prevent gas leakage and to promote the formation of dry ice particles due to its weak heat insulation effect.
第３図は本発明のさらに他の実施例を示したもので、第
１図と共通する部分には同一符号が付しである。FIG. 3 shows still another embodiment of the present invention, in which parts common to those in FIG. 1 are given the same reference numerals.
この実施例では第１図に示した冷却箱５．５′に相当す
る冷却箱１２．１２′は、背面側の解放部が端板’ ２
ａ 、１２ａ ｌで覆われ、導体１．１′との間にわず
かの空隙部１２ｂ、１２ｂ’が形成されている。In this embodiment, the cooling box 12.12' corresponding to the cooling box 5.5' shown in FIG.
a, 12a l, and a slight gap 12b, 12b' is formed between the conductor 1.1' and the conductor 1.1'.
この実施例では、解放部が実施例１のそれより小さくな
っているので、冷却効率が向上している。In this embodiment, since the open portion is smaller than that in embodiment 1, the cooling efficiency is improved.
以上の実施例において、溶接の際には、導体１．１′の
端部を５〜１０龍離間して筒体３により支持し、導体近
傍に冷ｆ７Ｉ箱を取付け、この冷却箱内にＣＯ２ガスを
噴出させながらＭＩＧ溶接を行なう。In the above embodiment, during welding, the end of the conductor 1.1' is supported by the cylinder 3 at a distance of 5 to 10 degrees, a cold F7I box is attached near the conductor, and CO2 is stored in the cooling box. Perform MIG welding while blowing out gas.
溶融金属は導体端部間の筒体内に保持され、溶接が進む
につれてその下部より凝固が進行する。The molten metal is held within the cylinder between the ends of the conductor, and solidification progresses from the bottom as welding progresses.
［発明の効果］
以上述べたように、本発明の導体の接続方法によれば、
接続すべ°き導体突合せ部をＶあるいはＸカットする必
要がなく、溶接時間を短縮し得る他、導体の冷却が十分
に行われるため、絶縁体への影響を防止することかでき
、従って、良好な電気的、機械的性質を有する接続部を
得ることができる。[Effects of the Invention] As described above, according to the conductor connection method of the present invention,
There is no need to make a V or X cut at the butt part of the conductor to be connected, which can shorten the welding time, and since the conductor is sufficiently cooled, it is possible to prevent any effect on the insulator, which results in a good welding process. A connection portion having excellent electrical and mechanical properties can be obtained.
第１図は本発明の接続方法の一実施例を示す溶接部の側
面図、第２図は本発明において用いられる冷却箱の横断
面図、第３図は本発明の他の実施例を示す溶接部の側面
図、第４図は従来の溶接方法を示す側面図、第５図はそ
の八−Ａ′線に沿う断面図である。
１．１′・・・導 体
３・・・・・・・・・・・・筒 休
５．５′、９．１２．１２′・・・冷却箱６．６′・・
・ノズル
７・・・・・・・・・・・・ボンベ
代理人弁理士 須 山 佐 −
（ばか１名）
第 １ 図
第 ２図
第３図
しFIG. 1 is a side view of a welded part showing one embodiment of the connection method of the present invention, FIG. 2 is a cross-sectional view of a cooling box used in the present invention, and FIG. 3 is a diagram showing another embodiment of the present invention. FIG. 4 is a side view showing a conventional welding method, and FIG. 5 is a sectional view taken along the line 8-A'. 1.1'...Conductor 3...Cylinder 5.5', 9.12.12'...Cooling box 6.6'...
・Nozzle 7・・・・・・・・・Cylinder agent Patent attorney Sa Suyama - (1 idiot) Figure 1 Figure 2 Figure 3
Claims (2)
向配置するとともに、前記導体端部近傍の導体外周にこ
れを囲繞する冷却箱を取付け、この冷却箱内に炭酸ガス
を噴出させて導体を冷却しながら、前記導体端部をＭＩ
Ｇ溶接することを特徴とする導体の接続方法。(1) A pair of conductor ends to be connected are arranged facing each other with a predetermined gap, a cooling box surrounding the conductor is attached to the outer periphery of the conductor near the conductor ends, and carbon dioxide gas is ejected into the cooling box. While cooling the conductor, the conductor end is MI
A method for connecting conductors characterized by G welding.
特許請求の範囲第１項記載の導体の接続方法。(2) The method for connecting conductors according to claim 1, wherein the pair of conductor ends are formed on substantially parallel surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16012284A JPH0632248B2 (en) | 1984-07-30 | 1984-07-30 | How to connect conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16012284A JPH0632248B2 (en) | 1984-07-30 | 1984-07-30 | How to connect conductors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6139384A true JPS6139384A (en) | 1986-02-25 |
| JPH0632248B2 JPH0632248B2 (en) | 1994-04-27 |
Family
ID=15708340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16012284A Expired - Lifetime JPH0632248B2 (en) | 1984-07-30 | 1984-07-30 | How to connect conductors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632248B2 (en) |
-
1984
- 1984-07-30 JP JP16012284A patent/JPH0632248B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632248B2 (en) | 1994-04-27 |
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