JPS5940417A - Method of producing bushing - Google Patents
Method of producing bushingInfo
- Publication number
- JPS5940417A JPS5940417A JP14779182A JP14779182A JPS5940417A JP S5940417 A JPS5940417 A JP S5940417A JP 14779182 A JP14779182 A JP 14779182A JP 14779182 A JP14779182 A JP 14779182A JP S5940417 A JPS5940417 A JP S5940417A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- bushing
- external electrode
- electrode
- resin
- 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
- 238000000034 method Methods 0.000 title description 4
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Insulators (AREA)
- Insulating Bodies (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）
本発明はエポキシ樹脂からなるブッシングの製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method of manufacturing a bushing made of epoxy resin.
（発明の技術的背景）
従来から図に示すように、内部電極１と環状の外部遮蔽
電極２の間にエポキシ樹脂からなる絶縁体３を設けた構
造のブッシングを製造するには、金型内に前記内部電極
１および外部遮蔽電極２を同心的に配置し、これらの間
の空隙内にエポキシ樹脂を充填しこれを硬化させる方法
が行なわれていた。(Technical Background of the Invention) Conventionally, as shown in the figure, in order to manufacture a bushing having a structure in which an insulator 3 made of epoxy resin is provided between an internal electrode 1 and an annular external shielding electrode 2, In conventional methods, the internal electrode 1 and the external shielding electrode 2 are arranged concentrically, the gap between them is filled with epoxy resin, and the resin is cured.
（背景技術の問題点）
しかしながらこの方法においては、エポキシ樹脂の硬化
の際の収縮が大きく、しがもエポキシ樹脂と両電極との
界面の接合性が極めて良好なため、特に両電極にはさま
れたＡの部分に、硬化時の収縮により大きな引張応力が
作用し、クラックが生じやすいという欠点があった。(Problems in the background art) However, in this method, the epoxy resin shrinks significantly during curing, and the bonding properties at the interface between the epoxy resin and both electrodes are extremely good, so There was a drawback in that a large tensile stress was applied to the part A that had been cured due to shrinkage during curing, and cracks were likely to occur.
（発明の目的）
本発明はこのような欠点を解消するためになされたもの
で、クラックの発生がなく特性の良好なブッシングを製
造する方法を提供することを目的とする。(Objective of the Invention) The present invention has been made in order to eliminate such drawbacks, and an object of the present invention is to provide a method for manufacturing a bushing that does not generate cracks and has good characteristics.
（発明の概要）
すなわち本発明は、外部電極をその軸線に対して垂直方
向に３分割可能に構成し、エポキシ樹脂の１次硬化後該
外部電極の中央部を抜脱し、次いで該樹脂の２次硬化を
行なった後、前記中央部が装着されていたエポキシ樹脂
硬化物の外側に導電層を形成することを特徴とするブッ
シングの製造方法である。(Summary of the Invention) That is, the present invention comprises an external electrode that can be divided into three parts in a direction perpendicular to its axis, and after the epoxy resin is first hardened, the central part of the external electrode is removed, and then the two parts of the resin are removed. This method of manufacturing a bushing is characterized in that after subsequent curing, a conductive layer is formed on the outside of the cured epoxy resin to which the central portion has been attached.
（発明の実施例）
以下図面に示す一実施例に基づいて本発明の詳細な説明
する。(Embodiment of the Invention) The present invention will be described in detail below based on an embodiment shown in the drawings.
実施例においては第１図に示すように、まず金型（図示
せず）の所定の位置に、棒状の内部電極１と軸線に対し
て垂直な面で３分割可能に構成された環状の外部電極２
を同心的に配置し、これらの電極間の空隙内にエポキシ
樹脂３を注入充填し加熱して或いは常温で硬化させる。In the embodiment, as shown in FIG. 1, first, a rod-shaped internal electrode 1 and an annular external electrode that can be divided into three parts in a plane perpendicular to the axis are placed in a predetermined position of a mold (not shown). Electrode 2
are arranged concentrically, and the epoxy resin 3 is injected and filled into the gap between these electrodes and cured by heating or at room temperature.
尚、外部の塗布層４を設けておくことが望ましい。エポ
キシ樹脂３の１次硬化終了後外部電極２の縦２分割可能
に構成された中央部５を抜脱して除去する。このとき中
央部５の内周面に塗布されていた導電性塗料の塗布層４
は、これと接するエポキシ樹脂１次硬化物の外周面に転
写される。Note that it is desirable to provide an external coating layer 4. After the primary curing of the epoxy resin 3 is completed, the central portion 5 of the external electrode 2, which can be divided into two vertically, is pulled out and removed. At this time, the coating layer 4 of the conductive paint was applied to the inner circumferential surface of the central portion 5.
is transferred to the outer circumferential surface of the primary cured epoxy resin that is in contact with this.
この状態でエポキシ樹脂３の２次硬化を行なった後、徐
々に冷却し、完全に冷却したら、外部電極中央部５が装
着されていた外部電極２の凹部に、導電性物質を塗り込
む等の方法で導電層を形成する。After performing secondary curing of the epoxy resin 3 in this state, it is gradually cooled, and when it is completely cooled, a conductive material is applied to the recessed part of the external electrode 2 where the central part 5 of the external electrode was attached. A conductive layer is formed by a method.
以上のように構成される実施例によれば、エポキシ樹脂
の２次硬化時、最も収縮による内部応力がかかりやすい
部分の外側の電極が取り除かれているので、樹脂内部に
クラック等が発生せず電気的特性の良好なプツシ、ング
が得られる。According to the embodiment configured as described above, during the secondary curing of the epoxy resin, the outer electrode is removed from the part where internal stress due to shrinkage is most likely to be applied, so that cracks etc. do not occur inside the resin. Pushing with good electrical characteristics can be obtained.
（発明の効果）
以上の記載から明らかなように、本発明によれば電気的
機械的特性に優れたブッシングを製造することができる
。(Effects of the Invention) As is clear from the above description, according to the present invention, a bushing with excellent electrical and mechanical properties can be manufactured.
図面は本発明の一実施例を説明するためのブッシングの
縦断面図である。
ｉ −−−−一 内部電極
２ −−−−一外部電極
３−−−−−一エポキシ樹脂
４ −−−−一導電性塗料の塗布層The drawing is a longitudinal sectional view of a bushing for explaining one embodiment of the present invention. i -----1 Internal electrode 2 -----1 External electrode 3 -----1 Epoxy resin 4 -----1 Coated layer of conductive paint
Claims (1)
、エポキシ樹脂を充填し硬化させてブッシングを製造す
るにあたり、前記外部電極を軸線に対して垂直方向に３
分割可能に構成し、エポキシ樹脂の１次硬化後該外部電
極の中央部を抜脱し、次いで該樹脂の２次硬化を行なっ
た後、前記中央部が装着されていたエポキシ樹脂硬化物
の外側に導電層を形成することを特徴とするブッシング
の製造方法。1. When manufacturing a bushing by filling and curing epoxy resin into the cavity of the mold between the internal electrode and the annular external electrode, the external electrode is placed in a direction perpendicular to the axis.
The central part of the external electrode is removed after the first hardening of the epoxy resin, and then the second hardening of the resin is performed, and then the central part is attached to the outside of the cured epoxy resin. A method of manufacturing a bushing, comprising forming a conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14779182A JPS5940417A (en) | 1982-08-27 | 1982-08-27 | Method of producing bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14779182A JPS5940417A (en) | 1982-08-27 | 1982-08-27 | Method of producing bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5940417A true JPS5940417A (en) | 1984-03-06 |
Family
ID=15438282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14779182A Pending JPS5940417A (en) | 1982-08-27 | 1982-08-27 | Method of producing bushing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128218U (en) * | 1984-07-25 | 1986-02-20 | 昭和電線電纜株式会社 | Communication busbar |
| WO2016190686A1 (en) * | 2015-05-26 | 2016-12-01 | 주식회사 효성 | Capacitor bushing and manufacturing method therefor |
-
1982
- 1982-08-27 JP JP14779182A patent/JPS5940417A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128218U (en) * | 1984-07-25 | 1986-02-20 | 昭和電線電纜株式会社 | Communication busbar |
| JPH0521779Y2 (en) * | 1984-07-25 | 1993-06-04 | ||
| WO2016190686A1 (en) * | 2015-05-26 | 2016-12-01 | 주식회사 효성 | Capacitor bushing and manufacturing method therefor |
| KR20160138691A (en) * | 2015-05-26 | 2016-12-06 | 주식회사 효성 | Bushing for condenser and making method of the same |
| US20180144846A1 (en) * | 2015-05-26 | 2018-05-24 | Hyosung Corporation | Capacitor bushing and manufacturing method therefor |
| US10297371B2 (en) | 2015-05-26 | 2019-05-21 | Hyosung Heavy Industries Corporation | Capacitor bushing and manufacturing method therefor |
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