JPS58135517A - Method of producing slackness suppressed wire - Google Patents
Method of producing slackness suppressed wireInfo
- Publication number
- JPS58135517A JPS58135517A JP1709482A JP1709482A JPS58135517A JP S58135517 A JPS58135517 A JP S58135517A JP 1709482 A JP1709482 A JP 1709482A JP 1709482 A JP1709482 A JP 1709482A JP S58135517 A JPS58135517 A JP S58135517A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- inclusions
- slackness
- producing
- aluminum
- 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.)
- Pending
Links
Landscapes
- Non-Insulated Conductors (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】
本発明は弛度抑制型電線を効率よく製造する方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for efficiently manufacturing a slack-reduced electric wire.
鋼心アルミ撚線は、鋼心の上にアルミ撚線を一体的に撚
り合せた構成よシなるから、これの線膨張係数はアルミ
と鋼の合成値を示し、およそ２０×１「７℃である。と
ころで、鋼の線膨張係数は、１１゜５ Ｘ １０−’／
℃であるから、もし鋼心アルミ撚線において鋼心にのみ
張力分担せしめ得れば、鋼心アルミ撚線の熱膨張を大巾
に低減せしめ、通電発熱時の弛度低下を減少せしめ得る
から、既設線路においても、それだけ通電容量を増加さ
せること示できる。Steel-core aluminum stranded wire has a structure in which aluminum strands are integrally twisted on a steel core, so its linear expansion coefficient is the composite value of aluminum and steel, and is approximately 20 × 1 7°C. By the way, the coefficient of linear expansion of steel is 11°5 x 10-'/
℃, so if in a steel-core aluminum stranded wire, the tension can be shared only by the steel core, the thermal expansion of the steel-core aluminum stranded wire can be greatly reduced, and the decrease in sag during energization and heat generation can be reduced. , it can be shown that even in existing lines, the current carrying capacity can be increased accordingly.
このような知見に立ち、第１図に示すように鋼心１とア
）レミ撚線２との間に水溶性をもってなる介在層６を介
在させて撚り合せ、その後この介在層６を溶出させて、
鋼心１とアルミ撚線２との境界部に小間隙を形成させ、
鋼心１とアルミ撚線２とを滑動可能な状態として、鋼心
１のみに架線張力の分担をさせる技術については、出＋
Ｐｉ人においてすでに提案がある。Based on this knowledge, as shown in Fig. 1, a water-soluble intervening layer 6 is interposed between the steel core 1 and the Remi strands 2, and then the intervening layer 6 is eluted. hand,
A small gap is formed at the boundary between the steel core 1 and the aluminum strands 2,
Regarding the technology in which the steel core 1 and the aluminum stranded wire 2 are in a slidable state and only the steel core 1 shares the overhead wire tension,
There is already a proposal in Pi people.
本発明は、それとは別個の知見に立つものであり、介在
物として水溶性の有無は問わず（すなわち、後刻溶出す
るものであっても差支えはないが）本発明においては、
そのような性質は二のつきとし、その介在物の性質を通
常の撚線工程では変形しないが（この意味は一切の変形
を認めないというのでなく、はとんど意に介するような
変形は示さないという意味である）撚線時の負荷力以上
の圧縮力が加わると変形するような性質として選択する
。The present invention is based on a separate knowledge, and the present invention does not care whether or not the inclusion is water-soluble (that is, it does not matter if it is eluted later).
Such properties are secondary, and although the properties of the inclusions will not change in the normal wire twisting process (this does not mean that no deformation is allowed, but rather that any deformation that is intentional will not be allowed). (meaning not shown) is selected so that it will deform when a compressive force greater than the load force during stranding is applied.
このような介在物６としては、軟質のプラスチックス、
あるいは紙など適宜選定することができる。Such inclusions 6 include soft plastics,
Alternatively, paper or the like may be selected as appropriate.
乾いている場合硬く、この状態で撚シ合せ、これに水を
かけると軟かくなるような特別な物質を用いて小さな外
力で簡単に縮径してもよい。When dry, they are hard, and in this state they are twisted together, and by using a special material that becomes soft when water is applied, the diameter can be easily reduced with a small external force.
このような介在物６は撚線工程中に鋼心１とアルミ撚線
２との境界部に第１図に示すと同様の構ｔａをもって撚
シ合わされる。Such inclusions 6 are twisted together at the boundary between the steel core 1 and the aluminum strands 2 in a structure similar to that shown in FIG. 1 during the wire twisting process.
しかして、撚線には、その後半径方向の圧縮力が負荷さ
れる。このような圧縮は金車の通過あるいは、西−シー
間の走行など適宜な方法で行ない得る。介在物６はこの
ような外力を受けることで圧縮変形し、第２図に示すよ
うに鋼心１あるいはアルミ撚線２の撚溝にもぐり込むよ
うにその形状が変る。すると、撚線全体の外径はその分
だけ縮径されることとなる。The strands are then subjected to a radial compressive force. Such compression may be accomplished by any suitable method, such as passing a gold wheel or traveling between West and Sea. The inclusions 6 are compressed and deformed by receiving such external force, and their shape changes so that they slip into the twist grooves of the steel core 1 or the aluminum strands 2, as shown in FIG. Then, the outer diameter of the entire stranded wire is reduced by that amount.
すなわち、第６図がその間の状況を示すものであり、は
じめ電線の層心径はＤであったものが、前記外力による
縮径によって、Ｄ□に変化する。That is, FIG. 6 shows the situation during that period, and the layer core diameter of the electric wire, which was initially D, changes to D□ due to the diameter reduction due to the external force.
この場合、アルミ素線実長りは変化しないから、ピッチ
Ｐは、Ｐ＋八へへと伸びることとなる。この△ＰがＰに
対する歪εとなる。In this case, since the actual length of the aluminum wire does not change, the pitch P increases to P+8. This ΔP becomes the strain ε for P.
△ｐ （ｐ＋へｐ）−ｐ
Ｐ Ｐ
この正分εが存在することにより、鋼心にのみ張力が分
担せられ、アルミ撚線には張力が加わらないこととなる
のである。Δp (p+to p)-p P P Due to the existence of this positive component ε, the tension is shared only to the steel core, and no tension is applied to the aluminum stranded wire.
以上説明の通り、本発明によれば弛度抑制型直線をきわ
めて容易にかつ効率よく人手することができるものであ
り、電力需要のひっ迫しつつある今日その意義はけだし
大きい。As explained above, according to the present invention, it is possible to manually form a sag-reduced straight line extremely easily and efficiently, and its significance is even greater today as the demand for electric power is becoming tighter.
第１および２図は本発明に係る弛度抑制型心線の製造過
程を示す説明図、第６図は弛度抑制化を示す解析線図で
ある。
１：鋼心、２ニアルミ撚線、６：介在物。
Ｔ１ 月
’Ｉ’ｚ（ｆＪ1 and 2 are explanatory diagrams showing the manufacturing process of the slack-suppressing type core wire according to the present invention, and FIG. 6 is an analytical diagram showing the slack-suppressing process. 1: Steel core, 2 aluminum strands, 6: Inclusions. T1 Month'I'z(fJ
Claims (1)
では変形しないが、撚線後圧締力により変形可能な介在
物を介在せしめて撚シ合せ、撚線後、撚線に半径方向の
外力を加えることにより、前記介在物を圧縮変形せしめ
、もって撚線全体を縮径せしめる弛度抑制型電線の製造
方法。1. At the boundary between the steel core and the aluminum stranded wire layer, inclusions that do not deform during the normal wire twisting process, but can be deformed by the pressing force after the wire is twisted, are inserted, and the wires are twisted together. A method for manufacturing a slack-suppressing electric wire, in which the inclusions are compressed and deformed by applying an external force in the radial direction to the wire, thereby reducing the diameter of the entire stranded wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1709482A JPS58135517A (en) | 1982-02-05 | 1982-02-05 | Method of producing slackness suppressed wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1709482A JPS58135517A (en) | 1982-02-05 | 1982-02-05 | Method of producing slackness suppressed wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58135517A true JPS58135517A (en) | 1983-08-12 |
Family
ID=11934402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1709482A Pending JPS58135517A (en) | 1982-02-05 | 1982-02-05 | Method of producing slackness suppressed wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58135517A (en) |
-
1982
- 1982-02-05 JP JP1709482A patent/JPS58135517A/en active Pending
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