JPS59201309A - Polyester premixing insulating operation rod - Google Patents
Polyester premixing insulating operation rodInfo
- Publication number
- JPS59201309A JPS59201309A JP7637683A JP7637683A JPS59201309A JP S59201309 A JPS59201309 A JP S59201309A JP 7637683 A JP7637683 A JP 7637683A JP 7637683 A JP7637683 A JP 7637683A JP S59201309 A JPS59201309 A JP S59201309A
- Authority
- JP
- Japan
- Prior art keywords
- operating rod
- polyester
- molding material
- insert
- insulated operating
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
- Organic Insulating Materials (AREA)
- Insulators (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】
〔発明の属する技術分野〕
本発明は、コロナ発生を防止したポリエステルプリミッ
クス成形絶縁操作ロッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a polyester premix molded insulated operating rod that prevents corona generation.
しゃ断器等の操作ロッドとしては、ポリエステルプリミ
ックス成形材料に金属製インサート金具を埋込み、一体
成形することにより製造されたものが使用されている。Operating rods for circuit breakers and the like are manufactured by embedding metal insert fittings in a polyester premix molding material and integrally molding the same.
しかし、このような操作ロッドでは、プリミックス中の
ミクロボイド及びインサート金具表面の剥離（平板ボイ
ド）によってコロナが発生する。従来、この種の操作ロ
ッドのコロナ防止方法としては、第１図に示すように、
ポリエステルプリミックス成形材料１にインサ−１・金
具２．２′を埋込むにあたって、インサーＩ・金具の周
囲に可撓性エポキシ樹脂又はノリボンゴム等の緩衝剤３
を塗布する方法が用いられていた。However, in such an operating rod, corona is generated due to microvoids in the premix and peeling (flat plate voids) on the surface of the insert fitting. Conventionally, as a corona prevention method for this type of operating rod, as shown in Fig. 1,
When embedding the insert 1 and metal fittings 2 and 2' in the polyester premix molding material 1, a buffer material 3 such as flexible epoxy resin or Noribon rubber is applied around the insert I and the metal fittings.
A method of coating was used.
しかし、しゃ断器の操作によりインサート金具２に軸方
向の引張及び圧縮の繰返し応力が加わり、緩衝剤３とポ
リエステルプリミックス１との界面に隙間が生じ、結局
この部分での放電現象によりコロナが発生するという問
題があった。However, due to the operation of the breaker, repeated axial tensile and compressive stress is applied to the insert fitting 2, creating a gap at the interface between the buffer material 3 and the polyester premix 1, and eventually corona is generated due to the discharge phenomenon in this area. There was a problem.
また、従来の操作ロッドの製造に用いられていたポリエ
ステルプリミックス成形材料は、ガラス長繊維を多量に
添加した材料であるだめに内部に巣等のボイド欠陥が発
生し易く、コロナ発生の原因ともなり、結局電気的寿命
が短いという欠点があった。一般に、このような巣状の
欠陥は、ポリエステルプリミックス成形材料の流動性の
低下及び樹脂の分割によって生ずるものであり、充填剤
、補強利、樹脂等を一体として流動せしめるだめには、
成形材ポ」の金型内での溶融粘度を高くしておく必要が
あった。In addition, the polyester premix molding material used to manufacture conventional operating rods is a material that contains a large amount of long glass fibers, so it tends to have void defects such as cavities inside, which can cause corona generation. As a result, it had the disadvantage of short electrical life. In general, such nest-like defects are caused by a decrease in the fluidity of the polyester premix molding material and the splitting of the resin.
It was necessary to keep the melt viscosity of the molding material high in the mold.
ここに、ポリエステルプリミックス成形材料に増粘剤と
１．て微粉末状マイｈを添加するならば、従来丑で増粘
剤として使用されていた微粉状シリカ（アエロシール）
と比較して、はるかに大きな増粘効果と補強効果が得ら
れると同時に成形時に生ずる内部の巣等のボイド欠陥が
できがたく、絶縁操作ロッドの耐電圧性能の向」−がは
かれることがわかった。捷だ、操作ロッドの製造に際し
て、インサー１・金具の埋込部表面にポリエステルプリ
ミックスと相容性の樹脂をベースとした導電性塗料を塗
布するならば、インサート金具表面に隙間が生じても導
電性塗料の作用によりコロナの発生が防止できることが
見出さね７だ９、
〔発明の目的〕
したがって、本発明は、ポリエステルプリミックスのミ
クロボイド及びインサ−］・金具表面の剥離に起因する
コロナの発生が防止された絶縁操作ロッドを提供するこ
とを目的とする。Here, a thickener and 1. If you add finely powdered silica (Aeroseal), which is conventionally used as a thickener in Ushi,
It was found that compared to the previous method, much greater thickening and reinforcing effects were obtained, and at the same time, void defects such as internal cavities that occur during molding were prevented, and the withstand voltage performance of the insulated operating rod was improved. Ta. Well, when manufacturing the operating rod, if you apply a conductive paint based on a resin that is compatible with polyester premix to the surface of the embedded part of insert 1 and the metal fitting, even if there is a gap on the surface of the insert metal fitting. It has been found that the generation of corona can be prevented by the action of conductive paint. The purpose of the present invention is to provide an insulated operating rod that is prevented from occurring.
本発明は、」二記目的を達成するためにポリエステルプ
リミックス成形材Ｈにインサ−１・金具を埋込み、一体
成形してなる絶縁操作ロッドにおいて、ポリエステルプ
リミックス成形材料に増粘剤として微粉末マイカを添加
し、そしてインサート金具の埋込部表面に導電性塗料を
塗布して成形されたことを特徴とする絶縁操作ロッドで
ある。In order to achieve the second object, the present invention provides an insulated operating rod in which an insert 1 and a metal fitting are embedded in a polyester premix molding material H and integrally molded. This insulated operating rod is characterized by being molded by adding mica and applying conductive paint to the surface of the embedded part of the insert fitting.
本発明で用いられるポリエステルプリミックス成形月利
は、従来よりとの種の操作ロッドの成形に用いられた成
形材料であってよく、ただ異なることは増粘剤として微
粉末マイカを添加したことである。マイカは２００メツ
シユ以下の粘度を有することが好捷ｊ７い。さらにマイ
カは、成形材料の全重量を基にして５〜３０重量％の量
で添加されるとよい。マイカ粉末は、一般に鱗片状をし
ており、アスペクト比（底面直径２／厚み）が犬である
。このためにマイカ粉末は、成形材料に補強効果を与え
ると共に、金型内での材料の溶融粘度を高め、材料の流
動性を向上させることができる。また、マイカ粉末は、
成形品を金型から容易に離型させる効果も奏する。The polyester premix molding material used in the present invention may be a molding material conventionally used for molding operating rods of the same type, with the only difference being that finely powdered mica is added as a thickener. be. The mica preferably has a viscosity of 200 mesh or less. Furthermore, mica may be added in an amount of 5 to 30% by weight, based on the total weight of the molding material. Mica powder is generally scaly and has a dog aspect ratio (bottom diameter 2/thickness). For this reason, mica powder can provide a reinforcing effect to the molding material, increase the melt viscosity of the material in the mold, and improve the fluidity of the material. In addition, mica powder is
It also has the effect of easily releasing the molded product from the mold.
本発明で使用できるポリエステルプリミックス成形材料
は、不飽和ポリエステル樹脂に充填剤（例えばシリカ、
クレー、けい酸カルシウム、炭酸力ルンウム、タルク等
）、補強材（例えばガラス繊維、石綿、有機繊維等）、
触媒（例えば有機過酸化物等）、離型剤、着色剤等を配
合したもので、通常使用直前に混合してつくられる。不
飽和ポリエステル樹脂とけ、ポリエステル主鎖中に不飽
和ビニル基を含んでいるポリエステル類であり、通常は
グリコール類を不飽和二塩基酸又はその無水物と反応さ
せることにより製造される。不飽和ポリエステル樹脂は
、−・般に過酸化物触媒と促進剤の存在下に熱硬化せし
められる。The polyester premix molding material that can be used in the present invention is an unsaturated polyester resin containing a filler (for example, silica,
clay, calcium silicate, carbonate, talc, etc.), reinforcing materials (e.g. glass fiber, asbestos, organic fiber, etc.),
It contains a catalyst (such as an organic peroxide), a mold release agent, a coloring agent, etc., and is usually mixed just before use. Unsaturated polyester resins are polyesters containing unsaturated vinyl groups in the polyester main chain, and are usually produced by reacting glycols with unsaturated dibasic acids or their anhydrides. Unsaturated polyester resins are thermally cured, generally in the presence of peroxide catalysts and accelerators.
壕だ、本発明の絶縁操作ロッドの製造にあたっテハ、ポ
リエステルプリミックス成形材料中に埋込まれるインサ
ート金具の埋込部表面には導電性塗料が塗布される。導
電性塗料は、ポリエステルプリミックスと相容性である
樹脂をベースと１〜、導電材（例えば黒鉛粉末、カーボ
ンブラック等）、硬化剤、触媒、溶媒、分散剤等からな
っている。In manufacturing the insulated operating rod of the present invention, a conductive paint is applied to the surface of the embedded part of the insert fitting embedded in the polyester premix molding material. The conductive paint is composed of a base resin that is compatible with the polyester premix, a conductive material (for example, graphite powder, carbon black, etc.), a curing agent, a catalyst, a solvent, a dispersant, and the like.
相容性樹脂は、前記したようなポリエステル樹脂、エポ
キシ樹脂等が好捷しい。The compatible resins are preferably polyester resins, epoxy resins, etc. as described above.
上記インサート金具は、鉄に亜鉛メッキした後にクロメ
ート処理したものが好捷しく、これにより導電性塗料は
成形後にインサート金具よりはがれて成形品の内側に転
写することが可能となる。The metal insert is preferably made of iron that is galvanized and then treated with chromate, so that the conductive paint can be peeled off from the metal insert after molding and transferred to the inside of the molded product.
本発明の絶縁操作ロッドの一構成例を第２図に示す。こ
のロッドは、インサート金具２．２′の先１゜
端埋込部表面に前記したような導電性塗料３′を塗布し
、ポリエステルプリミックス成形材料１中でインサート
成形することにより製造される。その際インサート金具
２．２′の表面に塗布した導電性塗料３′が成形材料と
成型時の熱及び圧力で強固に結合し、成形材料側に転写
した状態となる。この結果として、しゃ断器の操作時の
力及び振動によリインサート金具が軸方向に引張られ、
例えば、第３図に示すように剥離が生じても、インサー
ト金具と成形品との間の隙間４は同電位であるために部
分放電は起らない。An example of the structure of the insulated operating rod of the present invention is shown in FIG. This rod is manufactured by applying a conductive paint 3' as described above to the surface of the embedding portion at the tip 1° of the metal insert 2.2', and insert molding it in the polyester premix molding material 1. At this time, the conductive paint 3' applied to the surface of the metal insert 2.2' is firmly bonded to the molding material by the heat and pressure during molding, and is transferred to the molding material side. As a result, the reinsert fitting is pulled in the axial direction due to the force and vibration when operating the breaker.
For example, even if peeling occurs as shown in FIG. 3, no partial discharge will occur because the gap 4 between the metal insert and the molded product is at the same potential.
以下の第１表に示すような導電性塗料をインサート金具
の先端表面に塗布し、以下の第２表に示すような組成の
ポリエステルプリミックス成形材料に一体封止成形する
ことにより、第２図に示すような絶縁操作ロッドを製造
した。By applying a conductive paint as shown in Table 1 below to the tip surface of the insert fitting and integrally molding it to a polyester premix molding material with a composition as shown in Table 2 below, An insulated operating rod as shown in the figure was manufactured.
第１表
第１表において１の硬化条件は１００℃／（資）分であ
シ、２の硬化条件は１１０℃１５分である。Table 1 In Table 1, the curing condition for No. 1 is 100° C./min, and the curing condition for No. 2 is 110° C. for 15 minutes.
第２表
上記のインサート成形条件は、金型温度１４０〜１４５
℃、成形圧力１５０Ａｙｆ／ｄであった。Table 2 The above insert molding conditions are mold temperature 140-145
℃, and the molding pressure was 150 Ayf/d.
このようにして製造された絶縁操作ロッドについて機械
的寿命試験（１０，０００回開閉）を行い、この試験の
前後のロッドのコロナ試験を行って第３表に示すような
結果が得られた。結果は、 ５ｐｃ。The thus manufactured insulated operating rod was subjected to a mechanical life test (opening and closing 10,000 times), and the rod was subjected to a corona test before and after this test, and the results shown in Table 3 were obtained. The result is 5pc.
ＣＢＶ ３０ＫＶにおける判定不良率として示す。また
、比較例として、導電性塗料を使用せず且つマイカ粉の
添加なしのプリミックス材料を使用して製造された従来
品操作ロッドの結果も示す。It is shown as the judged defective rate at CBV 30KV. As a comparative example, the results of a conventional operating rod manufactured using a premix material without using conductive paint and without the addition of mica powder are also shown.
第３表 操作ロッドのコロナ特性
〔発明の効果〕
本発明によれば、絶縁操作ロッドがポリエステルプリミ
ックス成形材料に増粘剤として微粉末マイカを添加し、
インサート金具の埋込部表面に導電性塗料を塗布して成
形されるので、インサート金具表面に隙間が生じても導
電性塗料の効果により同電位となり、また成形特内部に
発生する巣などの欠陥もなくな９、コロナ放電が防止で
きる。Table 3 Corona characteristics of the operating rod [Effects of the invention] According to the present invention, the insulated operating rod includes finely powdered mica added as a thickener to the polyester premix molding material,
Since conductive paint is applied to the surface of the embedded part of the insert metal for molding, even if there is a gap on the surface of the insert metal, the electrical potential remains the same due to the effect of the conductive paint, and defects such as cavities that occur inside the molded part can be prevented. 9. Corona discharge can be prevented.
第１図は従来の操作ロッドの断面図である。
第２図は、本発明の操作ロッドの断面図である。
第３図は、本発明の操作ロッドで引張応力が加わった後
の断面図である。
１・・・ポリエステルプリミックス成形材料２．２′・
・・インサート金具
３・・・緩衝剤、３′・・・導電性塗料４・・・隙間
特許出願人 富士電機製造株式会社FIG. 1 is a sectional view of a conventional operating rod. FIG. 2 is a sectional view of the operating rod of the present invention. FIG. 3 is a sectional view after tensile stress is applied by the operating rod of the present invention. 1... Polyester premix molding material 2.2'.
...Insert fitting 3...Buffer, 3'...Conductive paint 4...Gap Patent applicant Fuji Electric Manufacturing Co., Ltd.
Claims (1)
具を埋込み、一体成形してなる絶縁操作ロッドにおいて
、ポリエステルプリミックス成形材料に増粘剤として微
粉末マイカを添加し、そしてインサート金具の埋込部表
面に導電性塗付して成形されたことを特徴とする絶縁操
作ロッド。 ２、特許請求の範囲第１項記載の絶縁操作ロッドにおい
て、微粉末マイカが２００メツシユ以下の粒度を有する
ことを特徴とする絶縁操作ロッド。 ３）特許請求の範囲第１項記載の絶縁操作ロッドにおい
て、微粉末マイカが５〜３０重量％の量で添加されるこ
とを特徴とする絶縁操作ロッド。 ４）特許請求の範囲第１項記載の絶縁操作ロッドにおい
て、導電性塗料がポリエステルプリミックス成形材料と
相容性である樹脂をベースとしたものであることを特徴
とする絶縁操作ロッド。 ５）特許請求の範囲第１項記載の絶縁操作ロッドにおい
て、インサート金具が鉄に亜鉛メッキした後クロメート
処理したものであることを特徴とする絶縁操作ロッド。 １[Claims] 1) In an insulated operating rod formed by embedding an insert fitting in a polyester premix molding material and integrally molding it, finely powdered mica is added as a thickener to the polyester premix molding material, and the insert fitting is embedded in the polyester premix molding material. An insulated operating rod characterized by being molded with conductive coating applied to the surface of the embedded part. 2. The insulated operating rod according to claim 1, wherein the finely powdered mica has a particle size of 200 mesh or less. 3) The insulated operating rod according to claim 1, characterized in that finely powdered mica is added in an amount of 5 to 30% by weight. 4) An insulated operating rod according to claim 1, characterized in that the conductive paint is based on a resin that is compatible with the polyester premix molding material. 5) The insulated operating rod according to claim 1, wherein the insert metal fitting is made of iron plated with zinc and then treated with chromate. 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7637683A JPS59201309A (en) | 1983-04-30 | 1983-04-30 | Polyester premixing insulating operation rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7637683A JPS59201309A (en) | 1983-04-30 | 1983-04-30 | Polyester premixing insulating operation rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59201309A true JPS59201309A (en) | 1984-11-14 |
Family
ID=13603614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7637683A Pending JPS59201309A (en) | 1983-04-30 | 1983-04-30 | Polyester premixing insulating operation rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59201309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009520610A (en) * | 2005-12-23 | 2009-05-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Insert member and injection molded member provided with insert member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4941917A (en) * | 1972-03-31 | 1974-04-19 | ||
| JPS5380456A (en) * | 1976-12-23 | 1978-07-15 | Gen Electric | Polyester resin combined with particulate mica and glasssfiberrreinforced thermoplastic resin composition |
| JPS55144013A (en) * | 1979-04-02 | 1980-11-10 | Hitachi Chem Co Ltd | Unsaturated polyester resin composition for casting electrical equipment |
-
1983
- 1983-04-30 JP JP7637683A patent/JPS59201309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4941917A (en) * | 1972-03-31 | 1974-04-19 | ||
| JPS5380456A (en) * | 1976-12-23 | 1978-07-15 | Gen Electric | Polyester resin combined with particulate mica and glasssfiberrreinforced thermoplastic resin composition |
| JPS55144013A (en) * | 1979-04-02 | 1980-11-10 | Hitachi Chem Co Ltd | Unsaturated polyester resin composition for casting electrical equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009520610A (en) * | 2005-12-23 | 2009-05-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Insert member and injection molded member provided with insert member |
| JP4801171B2 (en) * | 2005-12-23 | 2011-10-26 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Insert member and injection molded member provided with insert member |
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