JPS6036047B2 - Manufacturing method of self-fused electric wire - Google Patents
Manufacturing method of self-fused electric wireInfo
- Publication number
- JPS6036047B2 JPS6036047B2 JP53150765A JP15076578A JPS6036047B2 JP S6036047 B2 JPS6036047 B2 JP S6036047B2 JP 53150765 A JP53150765 A JP 53150765A JP 15076578 A JP15076578 A JP 15076578A JP S6036047 B2 JPS6036047 B2 JP S6036047B2
- Authority
- JP
- Japan
- Prior art keywords
- self
- manufacturing
- electric wire
- powder coating
- aqueous dispersion
- 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
- Insulated Conductors (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
【発明の詳細な説明】
この発明は新規な自己融着電線の製造方法に関するもの
で更に詳しくは、導体に雷着用水分散液による電着塗装
を行った後、粉体塗装を施こし自己融着可能な電線を製
造する方法に関するものでる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for manufacturing a self-fusing electric wire. More specifically, the present invention relates to a method for manufacturing a new self-fusing electric wire. This article relates to a method for manufacturing attachable electric wires.
近時、例えば電気機器、通信器用コイルなどの製作にあ
たって、自己融着電線を巻線後加熱処理するとによって
線間を融着一本化させる方法は、工程の簡略化、作業性
の点から従来の巻線後ワニス処理を施し、加熱硬化させ
る方法に代り広く適用されつつある。従来この種の自己
融着電線は、通常のエナメル塗料を浸債塗装法により塗
布し、焼付けて絶縁皮膜を形成した後、さらにこの皮膜
の上にビニルホルマール樹脂、フェノキシ樹脂、ナイロ
ン、ビニルブチラール樹脂などを特定の有機溶剤に熔解
させたものを塗布し、焼付けて製造されているのが現状
である。Recently, when producing coils for electrical equipment and communication equipment, for example, the method of heat-treating self-fusing wires after winding to fuse the wires into a single piece has become more popular than the conventional method from the viewpoint of process simplification and workability. This method is becoming widely used as an alternative to the method of applying varnish treatment after winding and curing by heating. Conventionally, this type of self-fusing electric wire is made by applying ordinary enamel paint using a bond coating method, baking it to form an insulating film, and then applying vinyl formal resin, phenoxy resin, nylon, or vinyl butyral resin on top of this film. Currently, they are manufactured by dissolving them in specific organic solvents, coating them, and then baking them.
しかしながら従来の製法においては、製造工程の複雑さ
はもちろん、大量の有機溶剤を使用することによる安全
衛生上の問題など数多くの欠点を有する。本発明者らは
、上記の如き欠点を改良すべ〈製造方法について種々検
討した結果、本発明を完成するに至った。However, conventional manufacturing methods have many drawbacks, such as the complexity of the manufacturing process and safety and health problems due to the use of large amounts of organic solvents. The present inventors have conducted various studies on manufacturing methods to improve the above-mentioned drawbacks, and as a result, have completed the present invention.
即ち本発明はエナメル電線(下地層)を、従来使用され
ている雷着用水分散ワニスを用いて露着により形成させ
次いで、粉体塗料により静電粉体塗装を行い加熱するこ
とによって有機溶剤を全く使用せずして、自己融着電線
を製造するものである。本発明に使用される電着用水分
散液は、熱硬化型のアクリル系水分散液、ポリエステル
水分散液、ポリエステルィミド水分散液などが好適に使
用されるが、絶縁電線として均一な薄膜を形成させるた
めに、水分散液の分散粒子径が重要となる。That is, in the present invention, an enameled electric wire (underlying layer) is formed by exposure using a conventionally used water dispersion varnish for lightning, and then electrostatic powder coating is applied using a powder coating, and organic solvent is removed by heating. A self-welding wire is manufactured without using any wires. The aqueous dispersion for electrodeposition used in the present invention is preferably a thermosetting acrylic aqueous dispersion, a polyester aqueous dispersion, a polyesterimide aqueous dispersion, etc. For formation, the dispersed particle size of the aqueous dispersion is important.
好適な粒子径としては、0.01〃m〜2一OAmの範
囲である。さらに本発明に使用される粉体塗料としては
、フェノキシ樹脂、スルフオン樹脂、ェポキシ樹脂、ビ
ニルホルマール樹脂、ポリエステル樹脂などが好適に使
用されるが、この場合重要な点は、200午0以下の加
熱下で、融着一体化し接着力が良いということであり、
かつ、電線が均一で室温で粘着性がないということであ
る。そのためには粉体塗料の溶融温度および粒子径が重
要な点となり、溶融温度が70ご○〜200℃の範囲が
好適で粒子径は20ム以下のものが好ましい。さらに粉
体塗装法としては、流動浸漁法、静電流動浸せき法、静
電スプレー法などが好適な方法として使用される。次に
本発明の実施に使用される自己融着電線の製造装置の一
例を図に示す。A suitable particle size is in the range of 0.01 m to 21 OAm. Further, as the powder coating used in the present invention, phenoxy resins, sulfone resins, epoxy resins, vinyl formal resins, polyester resins, etc. are suitably used, but in this case, the important point is that heating at 200 o'clock or less The lower part is fused and integrated, which means that the adhesive strength is good.
Additionally, the wire is uniform and non-tacky at room temperature. For this purpose, the melting temperature and particle size of the powder coating are important points, and the melting temperature is preferably in the range of 70°C to 200°C, and the particle size is preferably 20mm or less. Furthermore, as the powder coating method, fluid immersion method, electrostatic dynamic immersion method, electrostatic spray method, etc. are preferably used. Next, an example of a manufacturing apparatus for a self-welding wire used in carrying out the present invention is shown in the figure.
図においては1は裸銅線であり、2は熱硬化型の水分散
液を用いる霞着槽、3は有機溶剤の蒸気処理槽、4ゞ
5は焼付炉、6は粉体塗装装置で、7は空気注入口、8
はフィルター、9は粉体塗料、10は加熱炉である。次
に動作について説明する。まず、熱硬化型水分散液を収
容した霞着槽2を通過させることにより裸銅線1上に熱
硬化型樹脂が亀着され、(約3V〜50V)続いて溶剤
蒸気槽3で蒸気処理され、焼付炉4と5で嫁付けられて
エナメル電線が得られる。加熱された状態のエナメル電
線が粉体塗装槽6で塗装され必要なりば加熱溶融するこ
とにより目的とする自己融着電線が得られる。この場合
蒸気槽3で用いられる有機溶剤としては、雷着槽2で電
着される分散粒子を溶解あるし、は膨潤させることが必
要で、分散粒子によってそれぞれ異なるが、好適なもの
としては、ジメチルホルムアミド、ジメチルアセトアミ
ド、N−メチルピロリヒドン、ジメチルホオキシド、エ
チレングリコール、ジェチレングリコール、などの沸点
が100oo以上のものがあげられる。なお、線速、霞
着の諸条件、加熱炉の温度、粉体塗装の諸条件、露着に
よる皮膜の厚さ、粉体塗装による皮膜の厚さ、これら膜
厚の比などは特に限定されるものではなく、電線の用途
、要求特性などによりこれらを適宜決めれば良い。以下
本発明の自己融着電線の製造方法について図示のような
装置を用いた場合の実施列をあげて説明するが、もちろ
ん、横型の装置でも良く、本発明の効果を損なわない範
囲で種々の変形が可能であるということは言うまでもな
いことである。実施列 1
図の亀着槽2にアクリロニトル、スチレン、エチルアク
リレート、メタクリル酸、グリシジルメタルクリレート
からなるアクリル系水分敵液を用い、露着電圧5Vで電
着し、蒸気槽3でジメチルホルムアミド蒸気で処理し、
温度200〜3000Cに設定された焼付炉4、温度3
00〜40000に設定された焼付炉5を通過した後、
フェノキシ樹脂7部、スルフオン樹脂3部の割合からな
る粉体塗料(平均粒子約3〃)を用いて粉体塗装し、自
己融着電線を得た。In the figure, 1 is a bare copper wire, 2 is a hazing tank using a thermosetting water dispersion, 3 is a steam treatment tank for an organic solvent, and 4.
5 is a baking furnace, 6 is a powder coating device, 7 is an air inlet, 8 is a
is a filter, 9 is a powder coating, and 10 is a heating furnace. Next, the operation will be explained. First, a thermosetting resin is deposited on the bare copper wire 1 by passing through a hazing tank 2 containing a thermosetting water dispersion, and then steam-treated in a solvent steam tank 3 (approximately 3 V to 50 V). The enameled electric wire is then combined in baking furnaces 4 and 5 to obtain an enamelled electric wire. The heated enamelled wire is coated in a powder coating tank 6 and, if necessary, heated and melted to obtain the desired self-bonding wire. In this case, the organic solvent used in the steam tank 3 is required to dissolve or swell the dispersed particles electrodeposited in the lightning deposition tank 2, and varies depending on the dispersed particles, but suitable organic solvents include: Examples include those having a boiling point of 100 oo or more, such as dimethylformamide, dimethylacetamide, N-methylpyrrolihydone, dimethyl oxide, ethylene glycol, and jettylene glycol. Note that there are no particular limitations on the line speed, the conditions for haze deposition, the temperature of the heating furnace, the conditions for powder coating, the thickness of the coating due to desorption, the thickness of the coating due to powder coating, the ratio of these coating thicknesses, etc. These may be determined as appropriate depending on the use of the electric wire, required characteristics, etc. The method for producing a self-welding electric wire of the present invention will be described below with reference to examples using the apparatus shown in the drawings, but of course, a horizontal type apparatus may also be used, and various modifications may be made without impairing the effects of the present invention. It goes without saying that transformation is possible. Implementation row 1 Electrodeposition is carried out using an acrylic moisture solution consisting of acrylonitrile, styrene, ethyl acrylate, methacrylic acid, and glycidyl metal acrylate in the electroplating tank 2 shown in the figure at a dew voltage of 5 V, and dimethylformamide vapor is applied in the vapor tank 3. Processed with
Baking furnace 4, temperature 3 set at temperature 200-3000C
After passing through the baking furnace 5 set at 00 to 40000,
A self-fused wire was obtained by powder coating using a powder coating (average particle size: about 3) consisting of 7 parts of phenoxy resin and 3 parts of sulfone resin.
実施列 2
雷着槽2に入れる水分散液を、無水トリメット酸、ジア
ミノジフェニルメタン、エチレングリコール、トリスー
(8ヒドロキシヱキル)イソミアヌレート、ポリエチレ
ンテレフタレート、ヘキサヒドロ無水フタル酸からなる
ポリエステルィミド水分散液を用い、蒸気槽3でN−メ
チルピロリドンを用いた以外は、実施列1と同様にして
自己融着電線を得た。Implementation row 2 The aqueous dispersion to be placed in the lightning tank 2 was a polyesterimide aqueous dispersion containing trimethic anhydride, diaminodiphenylmethane, ethylene glycol, tris(8-hydroxyethyl) isomyanurate, polyethylene terephthalate, and hexahydrophthalic anhydride. A self-bonding wire was obtained in the same manner as in Example 1, except that N-methylpyrrolidone was used in steam bath 3.
実施列 3
粉体塗料としては〔ェピコート1009〕10の部、2
フェニルイミダゾール1部、ビニルブチラール樹4傍部
からなる粉体塗料(平均粒子径10仏)を用いた以外は
実施列1と同様にして自己融着電線を得た。Practical row 3 As a powder coating, [Epicoat 1009] 10 parts, 2
A self-bonding wire was obtained in the same manner as in Example 1, except that a powder coating consisting of 1 part of phenylimidazole and 4 parts of vinyl butyral tree (average particle size 10 French) was used.
上言己実施列に基づいて得られた本発明の自己融着電線
と従来法により得られた自己高虫着電線について測定さ
れた特性を第1表に示す。Table 1 shows the characteristics measured for the self-welding wire of the present invention obtained based on the above-mentioned self-implementation sequence and the self-welding wire obtained by the conventional method.
第1表
(*1) 5側めのマントレルに長さ1肌密巻きしえコ
イルが解体する時の引っ張り強さ。Table 1 (*1) Tensile strength when the coil is disassembled after being tightly wound for one length on the mantrell on the 5th side.
第1表から明らかなように本発明になる霞着法を併用し
た製造法による自己融着電線は、従来の浸簿塗装法によ
り得られたものに比べて均一性、接着力において優れて
おり、かつ大量の有機溶剤を使用せず、簡単な工程で得
られることから生産性が著しく向上するものである。As is clear from Table 1, the self-fusing electric wire produced by the manufacturing method combined with the haze coating method according to the present invention has superior uniformity and adhesive strength compared to those obtained by the conventional dipping coating method. , and can be obtained through a simple process without using a large amount of organic solvent, resulting in a marked improvement in productivity.
図は本発明の製造方法を実施するために用いる自己融着
電線の製造装置の一例を示す構成図である。
図中、1は裸銅線、2は電着槽、3は有機溶剤の蒸気処
理槽、4,5はいずれも暁付炉、6は粉体塗装装置、1
川ま加熱炉である。The figure is a configuration diagram showing an example of a self-fusing electric wire manufacturing apparatus used to carry out the manufacturing method of the present invention. In the figure, 1 is bare copper wire, 2 is an electrodeposition tank, 3 is an organic solvent steam treatment tank, 4 and 5 are both Akatsuki furnace, 6 is a powder coating equipment, 1
Kawama is a heating furnace.
Claims (1)
後熱溶融可能な粉体塗料を粉体塗装することを特徴とす
る自己融着電線の製造方法。 2 電着用水分散液としてアクリル系水分散液を用いた
ことを特徴とする特許請求の範囲第1項記載の自己融着
電線の製造方法。 3 電着用水分散液として、ポリエステルまたは、ポリ
エステルイシド系水分散液を用いたことを特徴とする特
許請求の範囲第1項記載の自己融着電線の製造方法。 4 粉体塗料として、フエノキシ樹脂、スルフオン樹脂
またはエポキシ樹脂を使用したことを特徴とする特許請
求の範囲第1項ないし第3項の何れかに記載の自己融着
電線の製造方法。 5 粉体塗装するに際し静電粉体塗装法を用いたことを
特徴とする特許請求の範囲第1項ないし第4項の何れか
に記載の自己融着電線の製造方法。[Scope of Claims] 1. A method for manufacturing a self-fusing electric wire, which comprises electrodepositing a conductor with an aqueous dispersion for electrodeposition, and then powder-coating the conductor with a heat-meltable powder coating. 2. The method for manufacturing a self-welding wire according to claim 1, characterized in that an acrylic aqueous dispersion is used as the aqueous dispersion for electrodeposition. 3. The method for producing a self-welding wire according to claim 1, characterized in that a polyester or polyester ide-based aqueous dispersion is used as the aqueous dispersion for electrodeposition. 4. The method for producing a self-fusing electric wire according to any one of claims 1 to 3, characterized in that a phenoxy resin, a sulfone resin, or an epoxy resin is used as the powder coating. 5. The method for manufacturing a self-fusing electric wire according to any one of claims 1 to 4, characterized in that an electrostatic powder coating method is used for powder coating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53150765A JPS6036047B2 (en) | 1978-12-05 | 1978-12-05 | Manufacturing method of self-fused electric wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53150765A JPS6036047B2 (en) | 1978-12-05 | 1978-12-05 | Manufacturing method of self-fused electric wire |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5576507A JPS5576507A (en) | 1980-06-09 |
JPS6036047B2 true JPS6036047B2 (en) | 1985-08-17 |
Family
ID=15503919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53150765A Expired JPS6036047B2 (en) | 1978-12-05 | 1978-12-05 | Manufacturing method of self-fused electric wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6036047B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6227441U (en) * | 1985-08-06 | 1987-02-19 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59196508A (en) * | 1983-04-22 | 1984-11-07 | 第一電工株式会社 | Insulated wire for oil-filled transformer |
JPS60150503A (en) * | 1984-01-17 | 1985-08-08 | 第一電工株式会社 | Self-adhesive insulated wire |
JPS62237610A (en) * | 1986-04-09 | 1987-10-17 | 三菱電機株式会社 | Self-bonding insulated wire |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS511315A (en) * | 1974-06-24 | 1976-01-08 | Ajinomoto Kk | SUIGINJOKYOZAI |
US4109375A (en) * | 1976-11-22 | 1978-08-29 | Westinghouse Electric Corp. | Method of making adhesive coated electrical conductors |
-
1978
- 1978-12-05 JP JP53150765A patent/JPS6036047B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS511315A (en) * | 1974-06-24 | 1976-01-08 | Ajinomoto Kk | SUIGINJOKYOZAI |
US4109375A (en) * | 1976-11-22 | 1978-08-29 | Westinghouse Electric Corp. | Method of making adhesive coated electrical conductors |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6227441U (en) * | 1985-08-06 | 1987-02-19 |
Also Published As
Publication number | Publication date |
---|---|
JPS5576507A (en) | 1980-06-09 |
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