JPS6013248B2 - Crosslinking method for rubber and plastic cables - Google Patents
Crosslinking method for rubber and plastic cablesInfo
- Publication number
- JPS6013248B2 JPS6013248B2 JP12513977A JP12513977A JPS6013248B2 JP S6013248 B2 JPS6013248 B2 JP S6013248B2 JP 12513977 A JP12513977 A JP 12513977A JP 12513977 A JP12513977 A JP 12513977A JP S6013248 B2 JPS6013248 B2 JP S6013248B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- rubber
- conductor
- passage hole
- cable conductor
- 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
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
【発明の詳細な説明】
本発明はゴム又はプラスチックで絶縁された大導体又は
高圧のゴム、プラスチックケーブルの架橋方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for crosslinking large conductors or high voltage rubber or plastic cables insulated with rubber or plastic.
従来、大導体又は高圧の架橋ゴム、プラスチックケーブ
ルを製造するには、ケーブル導体の大きな自重の関係で
横型にはできず、竪型の梁視続装置を使用していた。Conventionally, in order to manufacture large conductor or high voltage cross-linked rubber or plastic cables, a vertical beam viewing device has been used, since a horizontal type cannot be used due to the large weight of the cable conductor.
しかしながら、堅型の架布簿袋直は塔屋の建設費が高価
となる欠点があった。本発明の目的は、大導体又は高圧
のゴム、プラスチックケーブルでも横型にしてケーブル
導体及び絶縁層の自重による沈みを共に防止しつつ架橋
が行えるゴム、プラスチックケーブルの架橋方法を提供
するにある。以下本発明を図面に示した実施例を参照し
て詳細に説明する。However, the rigid type of bookshelf had the disadvantage that the construction cost of the tower was high. An object of the present invention is to provide a method for crosslinking rubber or plastic cables, which allows even large conductors or high voltage rubber or plastic cables to be crosslinked horizontally while preventing the cable conductor and insulating layer from sinking due to their own weight. The present invention will be described in detail below with reference to embodiments shown in the drawings.
図面は本発明を架橋ポリエチレンケーブルの架橋方法に
適用した例を示す。押出機クロスヘッド１のニツプル２
とダイス３との間からケーブル導体４の外周に未架橋の
ポリエチレン５′が押出し被覆されて形成された未架橋
ポリエチレンケーブル６′は、このクロスヘッド１に接
続されている架橋筒７内のケーブル通過孔７Ａに通され
、その加熱ゾーンＨＺで禾架橋のポリエチレン５′が架
橋され架橋ポリエチレン５となって架橋ポリエチレンケ
ーブル６が得られる。架橋筒７の加熱ゾーンＨＺの部分
は、図示しないヒータやこの架橋筒７に対する直接通電
により１５０ｑｏ〜３５ぴ０位に加熱されている。加熱
ゾーンＨＺは、Ａ部から始まりＢ部まで続くが、その長
さは短いものでは１〜２肌位あり、長いものでは２０ｍ
、３０ｍ等のものもある。また、ケーブル通過孔７Ａは
内径３仇舷〜１５仇舷が普通である。ケーブル通過孔７
Ａは、図示のように縦断面が略カテナリーカーブとなる
形状としている。The drawings show an example in which the present invention is applied to a method for crosslinking a crosslinked polyethylene cable. Nipple 2 of extruder crosshead 1
The uncrosslinked polyethylene cable 6' is formed by extruding uncrosslinked polyethylene 5' onto the outer periphery of the cable conductor 4 from between the cable conductor 4 and the die 3. The cable is passed through the passage hole 7A, and the crosslinked polyethylene 5' is crosslinked in the heating zone HZ to become the crosslinked polyethylene 5, thereby obtaining the crosslinked polyethylene cable 6. The heating zone HZ portion of the bridging cylinder 7 is heated to about 150 quarts to 35 quarts by a heater (not shown) or by directly applying electricity to the bridging cylinder 7. The heating zone HZ starts from part A and continues to part B, and its length is as short as 1 to 2 skins, and as long as 20 meters.
, 30m, etc. Further, the cable passage hole 7A usually has an inner diameter of 3 to 15 m. Cable passage hole 7
As shown in the figure, A has a shape in which the vertical cross section is approximately a catenary curve.
これに伴って、ケーブル導体４には張力をかけ、架橋筒
７内でこのケ−ブル通過孔７Ａのカテナリーカーブと同
じカーブを描きその中心を通るようにしている。架橋筒
７内でポリエチレンは通常１１０つ０〜３００午○位の
温度に加熱されている。Along with this, tension is applied to the cable conductor 4, and the cable conductor 4 is made to draw the same curve as the catenary curve of the cable passage hole 7A in the bridging tube 7 so as to pass through the center thereof. The polyethylene is normally heated in the crosslinking cylinder 7 to a temperature of about 110 to 300 pm.
この温度におけるポリエチレンの比重は０．６〜０．９
である。一方、ケーブル導体４の見かけの比重は鋼燃線
の場合６．２〜８．０である。従って、ケーブル導体４
に張力を全くかけない場合、この比重の差の分だけケー
ブル導体４は下方に沈もうとする力が働く。しかしなが
ら、ケーブル導体４に張力をかけ、その張力を０から次
第に増加すると、ケーブル導体４が下方に沈もうとする
力は減少する。この張力を適切に与えることにより、ケ
ーブル導体４が下方又は上方に移動しようとする力を著
しく軽減することができる。ケーブル導体４が銅の単線
又は撚線で出来ている場合、ケーブル導体４の単位断面
積に与える張力は０．５〜６ｋ９／柵が良い。６はケー
ブル通過孔７Ａの下方への変位を示す。The specific gravity of polyethylene at this temperature is 0.6-0.9
It is. On the other hand, the apparent specific gravity of the cable conductor 4 is 6.2 to 8.0 in the case of a steel wire. Therefore, cable conductor 4
When no tension is applied to the cable conductor 4, a force is exerted on the cable conductor 4 that tends to sink downward by the difference in specific gravity. However, when tension is applied to the cable conductor 4 and the tension is gradually increased from 0, the force that tends to cause the cable conductor 4 to sink downward decreases. By appropriately applying this tension, the force that tends to cause the cable conductor 4 to move downward or upward can be significantly reduced. When the cable conductor 4 is made of copper single wire or stranded wire, the tension applied to the unit cross-sectional area of the cable conductor 4 is preferably 0.5 to 6 k9/fence. 6 indicates the downward displacement of the cable passage hole 7A.
通常は６／ＨＺは０．０００５〜０．０９立が適当であ
る。架橋ポリエチレンケーブル６は、架橋筒７の末端に
接続されている冷却筒８の中に入り冷却水９で冷却され
る。なお、架橋筒７のケーブル通過孔７Ａ内に外部より
潤滑剤を適宜注入して架橋筒７の内面と禾架橋ポリエチ
レン５′又は架橋ポリエチレン５の表面との摩擦力を少
なくして未架橋ポリエチレンケーブル６′又は架橋ポリ
エチレンケーブル６の進行をスムーズにさせるようにし
てもよい。Normally, 6/HZ is suitably 0.0005 to 0.09. The cross-linked polyethylene cable 6 enters a cooling cylinder 8 connected to the end of the cross-linked cylinder 7 and is cooled by cooling water 9. In addition, a lubricant is suitably injected from the outside into the cable passage hole 7A of the cross-linked tube 7 to reduce the frictional force between the inner surface of the cross-linked tube 7 and the cross-linked polyethylene 5' or the surface of the cross-linked polyethylene 5, thereby forming an uncross-linked polyethylene cable. 6' or the crosslinked polyethylene cable 6 may be made to advance smoothly.
また、本実施例は努割喬ポリエチレンケーブルの架橋方
法について説明したが、本発明は他のゴム、プラスチッ
クケーブルの架橋方法にも同様に適用できるものである
。Further, although this embodiment has been described with respect to a method of crosslinking a polyethylene cable, the present invention can be similarly applied to a method of crosslinking other rubber or plastic cables.
以上説明したように本発明では、ゴム、プラスチックケ
ーブルが接触しつつ通過する架橋筒内のケーブル通過孔
をカテナリー形とし、且つ架橋筒内のケ−プル導体に該
ケーブル導体が自重で下らず前記ケーブル通過孔の中心
を通るように張力をかけるようにしたので、ケーブル導
体が大導体でもその自重による沈みを防止することがで
きる。As explained above, in the present invention, the cable passage hole in the bridging tube through which the rubber or plastic cable passes through while in contact is catenary-shaped, and the cable conductor does not fall down under its own weight to the cable conductor in the bridging tube. Since tension is applied so that the cable passes through the center of the cable passage hole, even if the cable conductor is large, it can be prevented from sinking due to its own weight.
また、本発明では絶縁層が架橋筒の内面に接触している
ので、絶縁層の自重は架橋筒で支えられて沈むのを防止
できる。従って本発明によれば、ケーブル導体及び絶縁
層の自重による沈みを共に防止することができ、穣型の
架本喬装置でも大導体又は高圧ケーブルの架橋を行うこ
とができる。このため、顔屋が不要になり、安価な設備
費で実施することができる。Further, in the present invention, since the insulating layer is in contact with the inner surface of the bridge tube, the weight of the insulating layer is supported by the bridge tube and can be prevented from sinking. Therefore, according to the present invention, it is possible to prevent both the cable conductor and the insulating layer from sinking due to their own weight, and it is possible to bridge a large conductor or a high voltage cable even with a rectangular cross-linking device. For this reason, there is no need for a face shop, and the process can be carried out with low equipment costs.
図面は本発明で用いる架あ髭装置の一実施例を示す縦断
面図である。
１…・・・押出機クロスヘッド、２……ニツプル、３…
…ダイス、４……ケーブル導体、５′・・・・・・禾架
橋ポリエチレン、５・・・…架橋ポリエチレン、６′・
・・・・・禾架橋ポリエチレンケーブル、６・・…・架
橋ポリエチレンケーブル、７・・・・・・架橋筒、７Ａ
・・・・・・ケーブル通過孔。The drawing is a longitudinal cross-sectional view showing one embodiment of the beard device used in the present invention. 1...Extruder crosshead, 2...Nipple, 3...
...Dice, 4...Cable conductor, 5'...Crosslinked polyethylene, 5...Crosslinked polyethylene, 6'
...Crosslinked polyethylene cable, 6...Crosslinked polyethylene cable, 7...Crosslinked tube, 7A
・・・・・・Cable passage hole.
Claims (1)
橋筒のケーブル通過孔内面に接触させつつ通して架橋す
る方法において、前記架橋筒のケーブル通過孔をカテナ
リー形とし、且つ前記架橋筒の中を通るゴム、プラスチ
ツクケーブルのケーブル導体が自重で下らず前記ケーブ
ル通過孔の中心を通るように前記ケーブル導体に張力を
かけることを特徴とするゴム、プラスチツクケーブルの
架橋方法。1. A method of bridging by passing a large conductor or high voltage rubber or plastic cable in contact with the inner surface of the cable passage hole of the bridging tube, in which the cable passage hole of the bridging tube is catenary-shaped, and the rubber or plastic cable is passed through the bridging tube. . A method of bridging a rubber or plastic cable, characterized in that tension is applied to the cable conductor of the plastic cable so that the cable conductor does not fall under its own weight and passes through the center of the cable passage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12513977A JPS6013248B2 (en) | 1977-10-20 | 1977-10-20 | Crosslinking method for rubber and plastic cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12513977A JPS6013248B2 (en) | 1977-10-20 | 1977-10-20 | Crosslinking method for rubber and plastic cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5460383A JPS5460383A (en) | 1979-05-15 |
| JPS6013248B2 true JPS6013248B2 (en) | 1985-04-05 |
Family
ID=14902819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12513977A Expired JPS6013248B2 (en) | 1977-10-20 | 1977-10-20 | Crosslinking method for rubber and plastic cables |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013248B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS606052B2 (en) * | 1981-06-10 | 1985-02-15 | 株式会社フジクラ | Continuous vulcanization equipment |
-
1977
- 1977-10-20 JP JP12513977A patent/JPS6013248B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5460383A (en) | 1979-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3532783A (en) | Method of molding bonded messenger cable | |
| US3479446A (en) | Strand shielded cable and method of making | |
| US3849192A (en) | Method of applying and cooling low density polyethylene cable insulation | |
| US3634597A (en) | Conductor system for superconducting cables | |
| JPS6013248B2 (en) | Crosslinking method for rubber and plastic cables | |
| US5197319A (en) | Extrusion apparatus for sheathing a temperature sensitive core material | |
| KR100271880B1 (en) | Heat treatment of cable | |
| IT944387B (en) | METHOD FOR FORMING AND VULCANIZING VOLCANIZABLE MATERIALS AND ARCTIC LI VULCANIZED BY THIS METHOD | |
| FR2361730A1 (en) | METHOD AND DEVICE FOR MANUFACTURING AN INSULATING SHEATH IN CROSS-LINKED INSULATING MATERIAL | |
| ES2059016T3 (en) | PROCEDURE AND INSTALLATION FOR MEASURING THE CROSS SECTION OF ELECTRICAL CONDUCTORS. | |
| HU207602B (en) | Method for welding cable insulation | |
| US3413167A (en) | Manufacture of plastic-insulated electrical cable | |
| CN209149857U (en) | 500kV super-pressure blocks water the termite-proof crosslinked cable of protection against rodents | |
| US4229238A (en) | Process for manufacturing coaxial cable | |
| JPS6344892Y2 (en) | ||
| JPH0686228U (en) | Wire / cable jacket Extrusion molding crosshead and bridge | |
| JPH0644844A (en) | Manufacture of crosslinked polyolefine insulated wire | |
| JPH0217885B2 (en) | ||
| JPS62191777A (en) | Method for detecting deterioration position of crosslinked polyethylene insulated cable | |
| SU1686487A1 (en) | Method of manufacture of low-induction pulse cable | |
| JPS5933128Y2 (en) | Flat cable manufacturing equipment | |
| JPH01150519A (en) | Method for manufacturing plastic extrusion member | |
| JPH0773761A (en) | Extruding type continuous molding bridge forming method for power cable and its device | |
| JPH0646845B2 (en) | Method for forming insulator of power cable connection | |
| JPS58140917A (en) | Method of producing watertight insulated wire |