JP3142611B2 - Cable mold connection bridging device - Google Patents
Cable mold connection bridging deviceInfo
- Publication number
- JP3142611B2 JP3142611B2 JP03252487A JP25248791A JP3142611B2 JP 3142611 B2 JP3142611 B2 JP 3142611B2 JP 03252487 A JP03252487 A JP 03252487A JP 25248791 A JP25248791 A JP 25248791A JP 3142611 B2 JP3142611 B2 JP 3142611B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- cross
- mold
- kettle
- cable
- 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 - Fee Related
Links
- 239000007789 gas Substances 0.000 claims description 44
- 239000011261 inert gas Substances 0.000 claims description 23
- 238000004132 cross linking Methods 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000012212 insulator Substances 0.000 description 29
- 238000000354 decomposition reaction Methods 0.000 description 14
- 239000004020 conductor Substances 0.000 description 6
- 239000003431 cross linking reagent Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 2
- 235000006650 Syzygium cordatum Nutrition 0.000 description 2
- 240000005572 Syzygium cordatum Species 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、架橋ポリオレフィン絶
縁ケーブルのようなケーブルのモールド接続部の架橋に
使用される架橋装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cross-linking device used for cross-linking a mold connection of a cable such as a cross-linked polyolefin insulated cable.
【０００２】[0002]
【従来の技術】従来から、架橋ポリエチレン絶縁ケーブ
ル（ＣＶケーブル）のようなケーブル接続部における絶
縁補強体を形成する方法として、次のような、押出しモ
ールドジョイント法（ＥＭＪ法）と呼ばれる成形方法が
知られている。2. Description of the Related Art Conventionally, as a method of forming an insulation reinforcing member at a cable connecting portion such as a crosslinked polyethylene insulated cable (CV cable), a molding method called an extrusion mold joint method (EMJ method) as follows. Are known.
【０００３】すなわち、一対のＣＶケーブルなどの端部
をそれぞれ段剥ぎし、露出した導体を導体接続スリーブ
などを用いて接続した後、この導体接続部上に両側のケ
ーブル絶縁体に跨がって、紡錘状のキャビテイを有する
金型を被嵌する。次いで金型の予熱および空押しを順に
行った後、キャビティ内に、ジ−α−クミルパーオキサ
イド（ＤＣＰ）やｔ−ブチルパーオキサイドのような架
橋剤を配合したポリエチレンやポリプロピレンなどのポ
リオレフィン組成物を充填し加熱してモールド絶縁体を
形成する。ここで、一旦、金型を取り外し、必要なら
ば、形成されたモールド絶縁体に切削加工を施した後、
図３に示すような架橋装置を用いて加熱架橋を行う。That is, the ends of a pair of CV cables or the like are stripped off, the exposed conductors are connected using a conductor connection sleeve or the like, and the conductor is laid on both sides of the cable insulator on the conductor connection portion. Then, a mold having a spindle-shaped cavity is fitted. Then, after sequentially performing preheating and empty pressing of the mold, a polyolefin composition such as polyethylene or polypropylene containing a crosslinking agent such as di-α-cumyl peroxide (DCP) or t-butyl peroxide in the cavity. And heating to form a mold insulator. Here, once the mold is removed, and if necessary, after cutting the formed mold insulator,
Heat crosslinking is performed using a crosslinking device as shown in FIG.
【０００４】すなわち、モールド絶縁体１の外周にシリ
コーン樹脂のようなガス透過性の高い耐熱性樹脂からな
る熱収縮チューブ（図示を省略）を被せた後、内側に複
数の加熱ヒータ（図示を省略）が付設された架橋釜２内
に収容し、架橋釜２内にその下部に設けたガス圧入口３
から加圧された不活性ガスを充填する一方、架橋釜２上
部のガス排出口４を開き、不活性ガスを常時架橋釜２内
に流しつつ、加熱ヒータによりモールド絶縁体１を加熱
して架橋させる。この間、モールド絶縁体１から発生す
る架橋剤の分解残渣や水などの分解生成物は、不活性ガ
スとともにガス排出口４より外部へ排出される。That is, a heat-shrinkable tube (not shown) made of a heat-resistant resin having high gas permeability such as silicone resin is put on the outer periphery of the mold insulator 1, and a plurality of heaters (not shown) are provided inside. ) Is accommodated in the bridge kettle 2 provided with a gas pressure inlet 3 provided in the lower part of the bridge kettle 2.
While the inert gas pressurized from above is filled, the gas outlet 4 in the upper part of the bridging kettle 2 is opened, and the mold insulator 1 is heated by the heater to bridge while the inert gas is constantly flowing into the bridging kettle 2. Let it. During this time, decomposition products of the cross-linking agent and decomposition products such as water generated from the mold insulator 1 are discharged to the outside through the gas discharge port 4 together with the inert gas.
【０００５】なお、図３において、５は、架橋釜２内の
気密を保持するために、架橋釜２端部とＣＶケーブル６
のケーブル絶縁体７間に介挿された弾性パッキングであ
る。In FIG. 3, reference numeral 5 denotes an end of the bridge 2 and a CV cable 6 for maintaining the airtightness in the bridge 2.
This is an elastic packing inserted between the cable insulators 7.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の架橋装置を用いた場合、架橋の初期の段階
で、図４の矢印で示すような不活性ガスの流動およびそ
れによる熱の対流が生じるため、架橋釜２内の上部と下
部との間で大きな温度差を生じ、また、架橋釜２内に収
容されたモールド絶縁体１の外周面近傍の不活性ガス濃
度が稀薄なため、架橋の際にモールド絶縁体１から放出
される架橋剤の分解残渣や分解生成物の外部への排出が
迅速に行われず、ボイドや水トリーのない特性のよい架
橋体が形成されないという問題があった。However, when such a conventional cross-linking apparatus is used, the flow of the inert gas and the convection of heat due to the inert gas as shown by arrows in FIG. As a result, a large temperature difference occurs between the upper part and the lower part in the bridging pot 2, and the concentration of the inert gas near the outer peripheral surface of the mold insulator 1 housed in the bridging pot 2 is low. In this case, there is a problem that the decomposition residue and decomposition products of the cross-linking agent released from the mold insulator 1 are not rapidly discharged to the outside, and a cross-linked body having no voids and water trees and having good characteristics is not formed. .
【０００７】本発明はこのような問題を解決するために
なされたもので、モールド成形された接続部を架橋する
にあたり、その初期の段階でも、架橋釜内の温度分布に
偏りを生じたり、架橋剤の分解残渣や分解生成物の排出
が迅速に行われないなどの不都合を生ずることがないケ
ーブルのモールド接続部架橋装置を提供することを目的
とする。The present invention has been made in order to solve such a problem. In bridging a molded connection portion, even at an initial stage, the temperature distribution in the bridging pot is deviated or cross-linked. It is an object of the present invention to provide a device for bridging a cable mold connection portion, which does not cause inconvenience such as not quickly discharging a decomposition residue and a decomposition product of an agent.
【０００８】[0008]
【課題を解決するための手段】本発明は、架橋すべきケ
ーブルのモールド接続部の外周に気密に被嵌される、加
熱ヒータが付設され、かつ、中央部のほぼ対称な位置に
ガスを注入するためのガス注入口およびガスを外部に排
出するためのガス排出口がそれぞれ設けられた架橋釜
と、前記ガス注入口より前記架橋釜内に高圧不活性ガス
を導入する不活性ガス導入手段とを備えたモールド接続
部架橋装置において、前記架橋釜内の前記ガス注入口と
前記ガス排出口のほぼ中間の位置に、前記ガス注入口よ
り導入され前記ガス排出口より排出される高圧不活性ガ
スの流れを前記モールド接続部の近傍を除いて遮断する
仕切り板を長さ方向に配設したことを特徴とする。Means for Solving the Problems The present invention, Quai be crosslinked
It is fitted hermetically on the outer periphery of the mold connections Buru, pressurized
A heat heater is attached, and at a substantially symmetrical position in the center
Gas inlet for gas injection and exhaust gas to the outside
A cross-linking kettle provided with a gas outlet for discharging the gas, and an inert gas introducing means for introducing a high - pressure inert gas into the cross-linking kettle from the gas inlet, the mold connecting portion cross-linking device, The flow of the high-pressure inert gas introduced from the gas inlet and discharged from the gas outlet is substantially at a position intermediate between the gas inlet and the gas outlet in the bridge kettle except for the vicinity of the mold connection part. And a partition plate for blocking is provided in the longitudinal direction.
【０００９】なお、上記仕切り板としては、金属板など
の架橋時の熱でも変形することのない耐熱性に優れた材
料で成形したものが望ましい。The partition plate is desirably formed of a material such as a metal plate which is not deformed even by heat at the time of crosslinking and has excellent heat resistance.
【００１０】[0010]
【作用】本発明のモールド接続部架橋装置においては、
架橋釜内のガス注入口とガス排出口のほぼ中間に、ガス
注入口より導入されガス排出口より排出される高圧不活
性ガスの流れをモールド接続部の近傍を除いて遮断する
仕切り板が配置されているので、この仕切り板によって
架橋釜内の対流が防止される。その結果、架橋の初期の
段階で生じる釜内の上部と下部との間の温度差の発生が
抑えられ、モールド絶縁体の各部に対して均一な加熱架
橋が行われる。In the mold connecting portion bridging device of the present invention,
Almost halfway between the gas inlet and the gas outlet in the bridge kettle, a partition plate that blocks the flow of the high-pressure inert gas introduced from the gas inlet and discharged from the gas outlet except for the vicinity of the mold connection is arranged. As a result, convection in the bridge kettle is prevented by the partition plate. As a result, the occurrence of a temperature difference between the upper portion and the lower portion in the pot, which occurs at the initial stage of the crosslinking, is suppressed, and uniform heating crosslinking is performed on each portion of the mold insulator.
【００１１】また、仕切り板により、不活性ガスがモー
ルド絶縁体近傍に一旦収束されて該部の不活性ガス濃度
が密になるため、モールド絶縁体から放出される架橋剤
の分解残渣や分解生成物が効率良く外部へと排出され、
これにともなってモールド絶縁体からのこれら成分の揮
散放出が促進される。Further, since the inert gas is once converged by the partition plate near the mold insulator and the concentration of the inert gas in the portion becomes high, the decomposition residue of the cross-linking agent released from the mold insulator and the generation of the decomposition are reduced. Things are efficiently discharged to the outside,
Accordingly, the volatile release of these components from the mold insulator is promoted.
【００１２】したがって、架橋が均一でかつボイドや水
トリーのない特性の良い架橋モールド接続部を形成する
ことができる。Therefore, it is possible to form a cross-linked mold connection part having uniform cross-linking and good characteristics without voids and water trees.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１および図２は、本発明の一実施例のＣ
Ｖケーブルのモールド接続部架橋装置を示す横断面図、
およびそのＡ−Ａ線に沿う断面図である。FIG. 1 and FIG. 2 show C of one embodiment of the present invention.
Cross-sectional view showing a device for bridging a mold connection portion of a V cable,
FIG. 2 is a sectional view taken along line AA of FIG.
【００１５】これらの図において、８は、端部を段剥し
て導体接続したＣＶケーブル９、９の導体接続部上に両
側のケーブル絶縁体１０、１０に跨がって、有機過酸化
物を配合したポリエチレン組成物の押出しモールドなど
により成形された紡錘状のモールド絶縁体１１を収容す
る架橋釜である。この架橋釜８の内周面全体には、図示
を省略したが、赤外線ランプのような複数の加熱ヒータ
が均等に取付けられており、また、中央部の下部および
上部には、ガス注入口１２とガス排出口１３とがそれぞ
れ設けられている。下部のガス注入口１２には、図示を
省略したが、加圧された不活性ガスを架橋釜８内に圧入
するための不活性ガス供給装置が接続されるようになっ
ている。In these figures, reference numeral 8 denotes an organic peroxide on the conductor connecting portions of the CV cables 9, 9 whose ends are stripped and conductor-connected, straddling the cable insulators 10, 10 on both sides. This is a cross-linking kettle for accommodating a spindle-shaped mold insulator 11 formed by an extrusion mold or the like of a blended polyethylene composition. Although not shown, a plurality of heaters such as infrared lamps are uniformly attached to the entire inner peripheral surface of the bridging pot 8, and a gas inlet 12 is provided at a lower portion and an upper portion of the central portion. And a gas outlet 13 are provided. Although not shown, an inert gas supply device for injecting pressurized inert gas into the cross-linking kettle 8 is connected to the lower gas inlet 12.
【００１６】しかして、この実施例においては、架橋釜
８の内周面のガス注入口１２とガス排出口１３との中間
に位置する部分に、長さ方向に沿って一対の耐熱性材料
からなる仕切り板１４が対向して配置され、中心に向か
って突設されている。これらの仕切り板１４は、収容さ
れたモールド絶縁体１１の外形に対応する平面形状を有
し、開放側先端部とモールド絶縁体１１の外周面との間
には、一定の狭い間隙が保持されるように構成されてい
る。Thus, in this embodiment, a pair of heat- resistant materials is formed along the length of the inner peripheral surface of the bridge 8 between the gas inlet 12 and the gas outlet 13 at a position between the gas inlet 12 and the gas outlet 13. Partition plate 14 is disposed to face each other and protrude toward the center. These partition plates 14 have a planar shape corresponding to the outer shape of the accommodated mold insulator 11, and a fixed narrow gap is held between the open end and the outer peripheral surface of the mold insulator 11. It is configured to:
【００１７】このように構成された架橋装置において
は、まず、端部を段剥して導体接続したＣＶケーブル
９、９の導体接続部上に両側のケーブル絶縁体１０、１
０に跨がって、有機過酸化物を配合したポリエチレン組
成物の押出しモールドなどにより成形された紡錘状のモ
ールド絶縁体１１を、その外周にシリコーン樹脂などの
耐熱性樹脂からなる熱収縮チューブ（図示を省略）を被
せて、架橋釜８内に収容し、架橋釜８端部とケーブル絶
縁体１０間を弾性パッキング１５により気密に封止す
る。次いで、架橋釜９上部のガス流出口１３を開放した
状態で、架橋釜８下部のガス注入口１２から、不活性ガ
ス供給装置により高圧の不活性ガス、たとえば9.5kg/cm
2 の窒素ガスを圧入するとともに、加熱ヒータに通電し
てモールド絶縁体１１を加熱する。しかして、圧入され
た不活性ガスは、ガス注入口１２から水平方向に拡散し
つつガス排出口１３へと向かうが、釜９内のガス注入口
１２とガス排出口１３との中間の位置に仕切り板１４が
設けられているため、図面矢印で示すように、モールド
絶縁体１１と仕切り板１４との間の狭隙を通って上方に
流れることになり、これによって釜９内の上下方向の対
流が防止される。この結果、対流にともなう上部と下部
との間の温度差の発生が抑えられ、初期の段階からモー
ルド絶縁体１１は均一に加熱されて架橋が進行する。一
方、架橋が開始されるとモールド絶縁体１１から架橋剤
の分解残渣や分解生成物が発生するが、仕切り板１４に
より不活性ガスがモールド絶縁体１１近傍に密に流れる
ようになるため、この不活性ガスによって効率良く外部
へと排出され、モールド絶縁体１１からの揮散放出が促
進される。In the bridging device thus constructed, first, the cable insulators 10 and 1 on both sides are placed on the conductor connection portions of the CV cables 9 and 9 whose ends are stepped off and conductor-connected.
A spindle-shaped mold insulator 11 formed by an extrusion mold or the like of a polyethylene composition containing an organic peroxide is placed on a heat-shrinkable tube (heat-shrinkable tube) made of a heat-resistant resin such as a silicone resin. (Not shown), and housed in the bridge 8, and the space between the end of the bridge 8 and the cable insulator 10 is hermetically sealed by the elastic packing 15. Next, with the gas outlet 13 at the upper part of the bridging kettle 9 opened, the high-pressure inert gas, for example, 9.5 kg / cm, is supplied from the gas inlet 12 at the lower part of the bridging kettle 8 by an inert gas supply device.
At the same time, the nitrogen gas is injected and the heater is energized to heat the mold insulator 11. Thus, the injected inert gas is diffused in the horizontal direction from the gas inlet 12 to the gas outlet 13, but at an intermediate position between the gas inlet 12 and the gas outlet 13 in the kettle 9. Since the partition plate 14 is provided, it flows upward through the narrow gap between the mold insulator 11 and the partition plate 14 as shown by the arrow in the drawing, and thereby, the vertical Convection is prevented. As a result, the occurrence of a temperature difference between the upper part and the lower part due to convection is suppressed, and the mold insulator 11 is uniformly heated from the initial stage, and crosslinking proceeds. On the other hand, when crosslinking starts, decomposition residues and decomposition products of the cross-linking agent are generated from the mold insulator 11, but the inert gas flows densely near the mold insulator 11 by the partition plate 14. The inert gas is efficiently discharged to the outside, and the volatile emission from the mold insulator 11 is promoted.
【００１８】このようにして、不活性ガスを釜９内に流
しつつ加熱を続け、モールド絶縁体１１が十分に架橋さ
れたところで、加熱を中止し、冷却して、架橋釜９を開
放する。この結果、均一に架橋され、かつ分解残渣や分
解生成物が十分除去された特性の良いモールド絶縁体１
１が形成される。In this way, the heating is continued while flowing the inert gas into the kettle 9. When the mold insulator 11 is sufficiently crosslinked, the heating is stopped, the cooling is performed, and the crosslinked kettle 9 is opened. As a result, the mold insulator 1 having good characteristics, which is uniformly cross-linked, and from which decomposition residues and decomposition products are sufficiently removed.
1 is formed.
【００１９】[0019]
【発明の効果】以上説明したように本発明の架橋装置に
よれば、ＣＶケーブルなどの接続部を形成するにあた
り、予め成形された架橋すべきモールド接続部を、初期
の段階より均一に加熱架橋させることができる。また、
モールド接続部近傍の不活性ガス流量が増大するため、
架橋剤の分解残渣や水などの分解生成物が外部へ効率良
く排出され、これら成分のモールド接続部からの揮散放
出が促進される結果、ボイドや水トリーの少ない特性の
良い架橋モールド接続部を得ることができる。As described above, according to the cross-linking device of the present invention, when forming a connecting portion such as a CV cable, a pre-molded connecting portion to be cross-linked is uniformly heated and cross-linked from an initial stage. Can be done. Also,
Because the flow rate of the inert gas near the mold connection increases,
Decomposition products such as decomposition residues of the cross-linking agent and water are efficiently discharged to the outside, and volatilization and release of these components from the mold connection are promoted. Obtainable.
【図１】本発明の一実施例のケーブルのモールド接続部
架橋装置を示す横断面図。FIG. 1 is a cross-sectional view showing an apparatus for bridging a mold connection portion of a cable according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線に沿う断面図。FIG. 2 is a sectional view taken along the line AA in FIG. 1;
【図３】従来のケーブルのモールド接続部架橋装置を示
す縦断面図。FIG. 3 is a vertical cross-sectional view showing a conventional apparatus for bridging a mold connection portion of a cable.
【図４】図３に示す従来のモールド接続部架橋装置の横
断面図。FIG. 4 is a cross-sectional view of the conventional mold connecting portion bridging device shown in FIG.
８………架橋釜 １１………モールド絶縁体 １２………ガス注入口 １３………ガス排出口 １４………仕切り板 8 Cross-linking kettle 11 Mold insulator 12 Gas inlet 13 Gas outlet 14 Partition plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 海老沼 康光 神奈川県川崎市川崎区小田栄２丁目１番 １号 昭和電線電纜株式会社内 (72)発明者 風晴 豊彦 神奈川県川崎市川崎区小田栄２丁目１番 １号 昭和電線電纜株式会社内 (56)参考文献 実開 平２−84291（ＪＰ，Ｕ) 実開 昭62−41686（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01R 43/00 B29C 35/02 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yasumitsu Ebinuma 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Showa Electric Wire & Cable Co., Ltd. (72) Inventor Toyohiko Fuharu Oda, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture 2-1-1, Sakae, Showa Electric Wire & Cable Co., Ltd. (56) References JP-A 2-84291 (JP, U) JP-A 62-41686 (JP, U) (58) Fields surveyed (Int. Cl) . 7, DB name) H01R 43/00 B29C 35/02
Claims (1)
周に気密に被嵌される、加熱ヒータが付設され、かつ、
中央部のほぼ対称な位置にガスを注入するためのガス注
入口およびガスを外部に排出するためのガス排出口がそ
れぞれ設けられた架橋釜と、前記ガス注入口より前記架
橋釜内に高圧不活性ガスを導入する不活性ガス導入手段
とを備えたモールド接続部架橋装置において、 前記架橋釜内の前記ガス注入口と前記ガス排出口のほぼ
中間の位置に、前記ガス注入口より導入され前記ガス排
出口より排出される高圧不活性ガスの流れを前記モール
ド接続部の近傍を除いて遮断する仕切り板を長さ方向に
配設したことを特徴とするケーブルのモールド接続部架
橋装置。1. A heater , which is hermetically fitted to the outer periphery of a mold connection portion of a cable to be cross-linked, is provided, and
A cross-linking kettle provided with a gas inlet for injecting gas into a substantially symmetrical position at the center and a gas outlet for discharging gas to the outside, and a high - pressure inside the cross-linking kettle from the gas inlet. In a mold connecting portion bridging device provided with an inert gas introducing means for introducing an active gas, at a substantially intermediate position between the gas inlet and the gas outlet in the cross-linking kettle, the gas is introduced from the gas inlet. A device for bridging a mold connection part of a cable, wherein a partition plate for blocking a flow of a high-pressure inert gas discharged from a gas discharge port except in a vicinity of the mold connection part is disposed in a longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03252487A JP3142611B2 (en) | 1991-09-30 | 1991-09-30 | Cable mold connection bridging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03252487A JP3142611B2 (en) | 1991-09-30 | 1991-09-30 | Cable mold connection bridging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0594857A JPH0594857A (en) | 1993-04-16 |
| JP3142611B2 true JP3142611B2 (en) | 2001-03-07 |
Family
ID=17238059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03252487A Expired - Fee Related JP3142611B2 (en) | 1991-09-30 | 1991-09-30 | Cable mold connection bridging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3142611B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015231595A (en) * | 2014-06-09 | 2015-12-24 | 凸版印刷株式会社 | Card shredder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2352540T3 (en) * | 2008-02-20 | 2011-02-21 | Abb Research Ltd. | METHOD FOR PROVIDING A HIGH VOLTAGE CD ELECTRICAL CABLE ISOLATED TO A HIGH VOLTAGE CD TERMINATION OR ARTICULATION. |
-
1991
- 1991-09-30 JP JP03252487A patent/JP3142611B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015231595A (en) * | 2014-06-09 | 2015-12-24 | 凸版印刷株式会社 | Card shredder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0594857A (en) | 1993-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4084307A (en) | Method of joining two cables with an insulation of cross-linked polyethylene or another cross linked linear polymer | |
| US3777048A (en) | Molding process for splicing cable and product formed thereby | |
| US4322573A (en) | Encapsulation of telecommunications cable splices | |
| MXPA04008898A (en) | Hot runner heater device and method of manufacture thereof. | |
| JP3142611B2 (en) | Cable mold connection bridging device | |
| FI60091B (en) | SAETT ATT SKARVA TVAO KABLAR MED ISOLERING AV TVAERBUNDEN POLYETEN ELLER ANNAN TVAERBUNDEN LINEAER POLYMER | |
| US2989784A (en) | Method of forming a plug of high melting point plastic bonded to a low melting point plastic | |
| FI60624C (en) | FOERFARANDE FOER RETABLERING AV ISOLERINGEN VID SKARVNING AV KABLAR SPECIELLT HOEGSPAENNINGSKABLAR | |
| JP3059537B2 (en) | Method of bridging mold insulator at cable connection | |
| JPH099447A (en) | Crosslinked polyethylene insulated power cable connection method and connection mold equipment | |
| FI66999B (en) | SAETT VIDAR SCARVES AV EN CABLE WITH ISOLERING AV TVAERBUNDEN POYETEN ELLER ANNAN TVAERBUNDEN POLYMER | |
| KR910003868Y1 (en) | Molding apparatus for connecting part of crosslinked polyethylene insulated cable | |
| JP2001338708A (en) | Waterproof structure of lead wire connecting part | |
| JPH0251306A (en) | Joint of rubber, plastic power cable | |
| JPS6057657B2 (en) | Method of forming insulated cable connections | |
| JPH05292624A (en) | Extrusion mold joint of crosslinked polyethylene insulated cable | |
| JP3233028B2 (en) | How to connect CV cable | |
| JPH0133915B2 (en) | ||
| JPH05122817A (en) | Formation of cable joint part | |
| JP2789583B2 (en) | Forming method of cable connection | |
| JPH0140475B2 (en) | ||
| JPH11121133A (en) | Power cable connection method and connection device | |
| KR910003581B1 (en) | Sealing method of connecting park for insulated wire | |
| JPH0381982A (en) | Bridging method for molded insulator of cable junction | |
| JPH099446A (en) | Connection method of rubber / plastic power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20001205 |
|
| LAPS | Cancellation because of no payment of annual fees |