JPS6337948B2 - - Google Patents
Info
- Publication number
- JPS6337948B2 JPS6337948B2 JP12257783A JP12257783A JPS6337948B2 JP S6337948 B2 JPS6337948 B2 JP S6337948B2 JP 12257783 A JP12257783 A JP 12257783A JP 12257783 A JP12257783 A JP 12257783A JP S6337948 B2 JPS6337948 B2 JP S6337948B2
- Authority
- JP
- Japan
- Prior art keywords
- connection part
- metal
- bodies
- mold
- rigid
- 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
- 239000002184 metal Substances 0.000 claims description 14
- 238000004132 cross linking Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Description
【発明の詳細な説明】
本発明は例えば架橋ポリオレフイン絶縁ビニル
シースケーブル（以下CVケーブルと呼ぶ）用の
モールド接続部の加熱架橋時の加圧処理方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for pressurizing a mold connection part of a crosslinked polyolefin insulated vinyl sheathed cable (hereinafter referred to as CV cable) during heat crosslinking.
一般にCVケーブル用モールド接続部は絶縁体
に架橋剤入りのポリオレフインを用い、気体によ
る加圧または液体もしくは溶融媒体による加圧の
下で加熱架橋を行つて製造される。 In general, molded connections for CV cables are manufactured by using polyolefin containing a crosslinking agent as the insulator, and performing heat crosslinking under pressure with a gas, liquid, or melting medium.
モールド接続部の電気的性能は架橋時の加圧状
態により著しく影響され、加圧が充分でない場合
にはその電気性能は低下することがあり、更にボ
イドやクラツクの発生が問題となる。一方加熱は
架橋に充分な温度まで行われるから相当な高温と
なるが、金型内に収納された接続部の外周に加熱
架橋時に設けられる加圧処理層が不十分であると
きには接続部が変形する等の問題がある。 The electrical performance of the molded joint is significantly affected by the pressure applied during crosslinking, and if the pressure is insufficient, the electrical performance may deteriorate, and furthermore, voids and cracks may occur. On the other hand, since heating is carried out to a temperature sufficient for crosslinking, the temperature is quite high, but if the pressure treatment layer provided on the outer periphery of the connection part housed in the mold is insufficient during heating and crosslinking, the connection part will deform. There are problems such as
従つて、CVケーブル用モールド接続部の加熱
架橋時の加圧を接続部形状を変形させることのな
い範囲で充分にする必要があるが、現在経済的に
みあうような方法が存在しない。 Therefore, it is necessary to apply sufficient pressure during heat crosslinking of the molded connection portion for CV cables within a range that does not deform the shape of the connection portion, but there is currently no method that is economically viable.
本発明の目的はモールド接続部のガス加圧状態
で加熱架橋する際に接続部に充分な加圧を行うと
共にその部分の変形を抑えることの出来る方法を
提供することである。 An object of the present invention is to provide a method capable of applying sufficient pressure to a mold connection part and suppressing deformation of the part when heat crosslinking is carried out in a gas pressurized state at the mold connection part.
以下図面に示す実施例にもとづき本発明の方法
を詳述する。 The method of the present invention will be explained in detail below based on the embodiments shown in the drawings.
第１図は本発明の方法を用いてのモールド金型
内での加熱架橋状態を示す部分断面概略図であ
り、第２図は本発明による加圧方法を詳細に示す
第１図の一部の側面図である。 FIG. 1 is a partial cross-sectional schematic diagram showing the heating crosslinking state in a mold using the method of the present invention, and FIG. 2 is a part of FIG. 1 showing the pressurizing method according to the present invention in detail. FIG.
第１図および第２図において、端部を従来のご
とくに処理して導体を導体接続管１により接続
し、内部半導電層２、絶縁層３および外部半導電
層４を与えられたCVケーブル１３の接続部は割
型カラー１２を用いて金型１１に収納され、接続
部の外側には耐熱性のすぐれたゴム、プラスチツ
クからなるダイアフラム５が設けられて金型１１
とダイアフラム５との間にガス加圧装置９により
所定のガス圧が加えられるようになつている。 1 and 2, a CV cable with the ends conventionally treated and the conductors connected by a conductor connection tube 1 and provided with an inner semiconducting layer 2, an insulating layer 3 and an outer semiconducting layer 4 The connecting portion 13 is housed in the mold 11 using a split collar 12, and a diaphragm 5 made of heat-resistant rubber or plastic is provided on the outside of the connecting portion.
A predetermined gas pressure is applied between the diaphragm 5 and the diaphragm 5 by a gas pressurizing device 9.
本発明によればダイアフラム５の上に複数の短
冊形の金属剛体６が縦添えされてダイアフラム５
を覆うようにされる。金属剛体６はステンレス剛
等の金属からなり、その厚さは１mm〜10mm、幅は
５mm〜50mmであつて長さは接続部の長さに相当
し、例えば0.2m〜2mである。 According to the present invention, a plurality of rectangular rigid metal bodies 6 are vertically attached on the diaphragm 5.
covered. The rigid metal body 6 is made of a metal such as stainless steel, has a thickness of 1 mm to 10 mm, a width of 5 mm to 50 mm, and a length corresponding to the length of the connecting portion, for example, 0.2 m to 2 m.
金属剛体６をダイアフラム５上に縦添配置した
後にその外周上の所望の個所に圧縮コイルばね状
に成型した金属弾性体７を取付ける。このように
することにより、ダイアフラム５は半径方向内向
きの偏倚力を与えられて接続部に対する加圧を充
分大きなものとすることが出来る。このような状
態で金型１１の加熱ヒータ１０を作動させて架橋
温度（160°〜250℃）まで加熱を行うと共にガス
加圧装置９でガス加圧（１Kg/cm2Ｇ〜20Kg/cm2Ｇ）
して加熱架橋を行う。 After the metal rigid body 6 is arranged vertically on the diaphragm 5, a metal elastic body 7 molded into a compression coil spring shape is attached to a desired location on the outer periphery of the rigid metal body 6. By doing so, the diaphragm 5 is given a radially inward biasing force, and the pressure applied to the connecting portion can be made sufficiently large. In this state, the heater 10 of the mold 11 is operated to heat the mold 11 to the crosslinking temperature (160° to 250°C), and the gas pressurizer 9 is used to pressurize the gas (1 Kg/cm 2 G to 20 Kg/cm 2 G)
Thermal crosslinking is performed by heating.
このように短冊形の金属剛体と弾性体の併用に
より接続部に加わる圧縮力は平均し、接続部の変
形は充分回避することが出来る。更に加圧処理自
体が簡体となり、作業時間も著しく短縮出来る。
そして結果としての接続部の電気特性は秀れたも
のとなる。 In this way, by using the rectangular rigid metal body and the elastic body in combination, the compressive force applied to the connection portion is averaged, and deformation of the connection portion can be sufficiently avoided. Furthermore, the pressure treatment itself is simplified, and the working time can be significantly shortened.
The electrical properties of the resulting connection are excellent.
第１図は本発明の加圧処理方法を用いた一実施
例の断面図、第２図は第１図の主要部の側面図で
ある。
１…導体接続管、２…内部半導電層、３…絶縁
層、４…外部半導電層、５…ダイアフラム、６…
金属剛体、７…金属弾性体、９…ガス加圧装置、
１０…加熱ヒータ、１１…金型、１２…割型カラ
ー。
FIG. 1 is a sectional view of an embodiment using the pressure treatment method of the present invention, and FIG. 2 is a side view of the main part of FIG. 1. DESCRIPTION OF SYMBOLS 1... Conductor connection tube, 2... Inner semiconducting layer, 3... Insulating layer, 4... Outer semiconducting layer, 5... Diaphragm, 6...
Metal rigid body, 7... Metal elastic body, 9... Gas pressurization device,
10... Heater, 11... Mold, 12... Split mold collar.
Claims (1)
として用い、接続部を金型に入れて気体加圧状態
で加熱架橋させてモールド接続部を形成するに際
し、上記接続部上に耐熱性の高いゴム、プラスチ
ツクダイアフラムを設け、更にその外周に短冊形
に加工した金属剛体を複数枚縦添えし、これら金
属剛体上にそれと直交する方向の金属弾性体を複
数個取付けて上記金属剛体を半径方向内向きに偏
倚させ、この状態で上記接続部を加圧加熱架橋モ
ールドすることを特徴とするモールド接続部の加
圧処理方法。1 Using a polyolefin insulator as the insulating material for the connection part, when forming the mold connection part by placing the connection part in a mold and heating and crosslinking it under gas pressure, a highly heat-resistant rubber, A plastic diaphragm is provided, a plurality of metal rigid bodies processed into rectangular shapes are vertically attached to the outer periphery of the plastic diaphragm, and a plurality of metal elastic bodies are attached on these rigid metal bodies in a direction perpendicular to the rigid metal bodies so that the metal rigid bodies face inward in the radial direction. 1. A pressure treatment method for a molded connection part, characterized in that the connection part is biased, and in this state, the connection part is pressurized, heated and cross-linked molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12257783A JPS6014779A (en) | 1983-07-06 | 1983-07-06 | Method of pressurizing molded connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12257783A JPS6014779A (en) | 1983-07-06 | 1983-07-06 | Method of pressurizing molded connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6014779A JPS6014779A (en) | 1985-01-25 |
| JPS6337948B2 true JPS6337948B2 (en) | 1988-07-27 |
Family
ID=14839347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12257783A Granted JPS6014779A (en) | 1983-07-06 | 1983-07-06 | Method of pressurizing molded connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014779A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62175593U (en) * | 1986-04-24 | 1987-11-07 |
-
1983
- 1983-07-06 JP JP12257783A patent/JPS6014779A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6014779A (en) | 1985-01-25 |
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