JPS6353819A - Manufacture of flat type insulated wire - Google Patents
Manufacture of flat type insulated wireInfo
- Publication number
- JPS6353819A JPS6353819A JP19640786A JP19640786A JPS6353819A JP S6353819 A JPS6353819 A JP S6353819A JP 19640786 A JP19640786 A JP 19640786A JP 19640786 A JP19640786 A JP 19640786A JP S6353819 A JPS6353819 A JP S6353819A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- rectangular
- resin powder
- coating
- powder
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000843 powder Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 18
- 229920003002 synthetic resin Polymers 0.000 claims description 15
- 239000000057 synthetic resin Substances 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920006287 phenoxy resin Polymers 0.000 description 2
- 239000013034 phenoxy resin Substances 0.000 description 2
- 229920003261 Durez Polymers 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Processes Specially Adapted For Manufacturing Cables (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野〉
本発明は静電粉体塗装法を用いた平角絶縁電線の製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method of manufacturing a rectangular insulated wire using an electrostatic powder coating method.
（従来の技術）
近年、粉体塗装法による絶縁電線の製造方法が、無公害
、省資源、省エネルギーの観点から注目されてきており
、この中でも塗着効率が高い方法として、静電流動浸漬
法が絶縁電線製造の分野で特に脚光をあびつつある。(Conventional technology) In recent years, methods for manufacturing insulated wires using powder coating methods have been attracting attention from the viewpoints of pollution-free, resource-saving, and energy-saving. is attracting attention, especially in the field of insulated wire manufacturing.
この方法は、例えば下方に配置した多孔板を通った乾燥
空気により帯電した合成樹脂粉体を流動化させて流動層
を形成し、金属導体をこの流動層上部の合成樹脂粉体を
充満させた粉体塗装室を通して表面に静電気的に合成樹
脂粉体を付着させた後、付着した合成樹脂粉体を加熱融
着および硬化させて被膜を形成させる方法であり、通常
金属導体を粉体塗装室内の水平方向に通す方式がとられ
ている。In this method, for example, charged synthetic resin powder is fluidized by dry air passing through a perforated plate placed below to form a fluidized bed, and a metal conductor is filled with the synthetic resin powder above the fluidized bed. This is a method in which synthetic resin powder is electrostatically attached to the surface through a powder coating chamber, and then the attached synthetic resin powder is heated and fused and cured to form a film. A method is adopted in which the wires are passed horizontally.
（発明が解決しようとする問題点）
しかしながら、このような方法においては、金属導体の
全周にわたって均一な厚さの被膜か得られず、従って絶
縁破壊電圧が低いという欠点があった。(Problems to be Solved by the Invention) However, this method has the disadvantage that a film having a uniform thickness cannot be obtained over the entire circumference of the metal conductor, and therefore the dielectric breakdown voltage is low.
特に、平角転位撚線を製造する場合には従来のポリビニ
ルホルマール樹脂（ＰＶＦ）等の塗布焼付層を設（プた
平角線を用いた場合と比較して、絶縁破壊電圧が低下す
るとともに仕上寸法が安定し難いためコイル成形時に所
定寸法に製作することか困難である上、巻線後コイルが
緩み易いという難点があった。In particular, when manufacturing rectangular transposed stranded wires, a coating and baking layer of conventional polyvinyl formal resin (PVF) or the like is applied (compared to the case of using flat rectangular wires), which lowers the dielectric breakdown voltage and improves the finished dimension. Since it is difficult to stabilize the coil, it is difficult to manufacture it to a specified size during coil forming, and the coil tends to loosen after winding.
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、全周にわたって均一な厚さの被膜が形成された電気
特性、特に絶縁破壊電圧が高く、かつコイルへの成形性
に優れた絶縁電線をｌ！造する方法を提供することを目
的とする。The present invention was made in order to solve these problems, and the present invention has been made to provide insulation that has a coating of uniform thickness over the entire circumference, has electrical properties, particularly high dielectric breakdown voltage, and is excellent in formability into coils. Electric wire! The purpose is to provide a method for creating
［発明の構成］
（問題点を解決するための手段）
すなわち本発明の平角絶縁電線の製造方法は、平角導体
を、帯電した合成樹脂粉体を充満さけた粉体塗装室に通
過させて、その表面に前記合成樹脂粉体を付着させ、次
いで付着した合成樹脂粉体を導体上に加熱融着させて絶
縁被膜層を形成した後、自己融着性絶縁塗料の塗布槽中
に通過じしめ、次いで焼付炉中に通過させて自己融着性
絶縁被膜層を形成させることを特徴としている。[Structure of the Invention] (Means for Solving the Problems) That is, the method for manufacturing a rectangular insulated wire of the present invention includes passing a rectangular conductor through a powder coating chamber filled with charged synthetic resin powder, The synthetic resin powder is attached to the surface of the conductor, and then the attached synthetic resin powder is heated and fused onto the conductor to form an insulating coating layer, and then passed through a coating bath of self-bonding insulating paint. It is then passed through a baking oven to form a self-bonding insulating coating layer.
本発明においては、粉体塗装による絶縁被膜層の膜厚の
不均一に基づく欠陥が、その外周に形成される自己融着
性絶縁被膜層によって解消され、かつコイルへの成形性
を改善するとともに、最外層に自己融着層を有するため
、成形後のコイルの強度を増大さけることができる。In the present invention, defects caused by uneven thickness of the insulating coating layer due to powder coating are eliminated by the self-adhesive insulating coating layer formed on the outer periphery, and the formability into a coil is improved. Since the outermost layer has a self-fusing layer, the strength of the coil after molding can be increased.
本発明における自己融着性絶縁塗料としては、フェノキ
シ樹脂、ポリビニルブチラール樹脂、ポリエステル樹脂
、ポリエステルイミド樹脂、ポリアミドイミド樹脂等の
他、これ等の混合物を用いることもできる。As the self-adhesive insulating paint in the present invention, phenoxy resin, polyvinyl butyral resin, polyester resin, polyesterimide resin, polyamideimide resin, and mixtures thereof can also be used.
図は本発明を実施するための装置の概略を示したもので
、１は粉体塗装室、２は加熱炉、３は自己融着性塗料を
収容した塗布槽、４はダイス、５は焼付炉である。上記
の装置において、心線供給ドラム６から送り出された平
角心線Ｗは、粉体塗装室１内でその表面に合成樹脂粉体
が付着ぜしめられた後、加熱炉２を通過することにより
、この合成樹脂粉体が加熱融着および硬化せしめられて
下側被膜層が形成される。次いでこの平角絶縁電線Ｗ′
は塗布槽３およびダイス４を通過することにより、その
外周に自己融着性塗料が塗布された後、焼付炉５内で硬
化せしめられ、この工程を必要に応じて複数回繰返すこ
とによって上側被膜層が形成される。なお図において７
．８はそれぞれ上シーブ、下シーブ、９は巻取ドラムを
示す。The figure schematically shows the equipment for carrying out the present invention, in which 1 is a powder coating chamber, 2 is a heating furnace, 3 is a coating tank containing a self-fusing paint, 4 is a die, and 5 is a baking It is a furnace. In the above apparatus, the rectangular core wire W sent out from the core wire supply drum 6 is coated with synthetic resin powder on its surface in the powder coating chamber 1 and then passed through the heating furnace 2. This synthetic resin powder is heat-fused and cured to form a lower coating layer. Next, this flat insulated wire W'
After passing through a coating tank 3 and a die 4, a self-adhesive paint is applied to its outer periphery, and then hardened in a baking oven 5, and this process is repeated multiple times as necessary to form an upper coating. A layer is formed. In the figure, 7
．． 8 indicates an upper sheave and a lower sheave, and 9 indicates a winding drum.
（実施例） 以下本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
実施例
一５６ＫＶの帯電電圧で帯電された合成樹脂粉体（ＥＣ
Ｐ２０８．住友デュレズ社製エポキシ樹脂扮体名）を、
長さ７０ ＣＴ１１の塗装窄内で多孔板を１２５２／分
の流量で通った乾燥空気により流動化させ、塗装室下部
に流動層を形成させた。この流動層から約１０ｃｍ上方
を１．２ｘ ５．０＋ｎｍの平角銅線を水平方向に５．
０ｍ／分の速度で通過させて表面に帯電した合成樹脂粉
体付着させた。次いて表面に合成樹脂粉体が付着された
平角銅線を、炉温４００〜４５０°Ｃ１炉長３．５ｍの
加熱炉へ５．０ｍ／分の速度で挿通させ、ざらに硬化さ
せて絶縁被膜層を形成した。Example 1 Synthetic resin powder (EC
P208. Sumitomo Durez Co., Ltd. epoxy resin name),
A perforated plate was fluidized by dry air passing through a perforated plate at a flow rate of 1252/min in a coating tube having a length of 70 CT11 to form a fluidized bed in the lower part of the coating chamber. A 1.2 x 5.0+nm rectangular copper wire was placed horizontally about 10 cm above the fluidized bed.
The charged synthetic resin powder was deposited on the surface by passing at a speed of 0 m/min. Next, the rectangular copper wire with synthetic resin powder adhered to its surface is inserted into a heating furnace with a furnace temperature of 400 to 450°C and a furnace length of 3.5 m at a speed of 5.0 m/min, where it is roughly hardened and insulated. A coating layer was formed.
次いでこの線材をフェノキシ樹脂を収容した塗１５槽中
を線速５．Ｏｍ／分の速度で通過じしめた後、焼付炉中
で加熱硬化させて自己融着性絶縁被膜層を形成した。こ
の焼付工程の炉温は、それぞれ炉の下側、中心、上側で
３８０．３５０． ２５０°Ｃで必る。Next, this wire was passed through a coating tank containing phenoxy resin at a wire speed of 5. After being allowed to pass through at a rate of 0m/min, it was heated and cured in a baking oven to form a self-bonding insulating coating layer. The furnace temperatures during this baking process were 380.350. Required at 250°C.
得られた平角絶縁電線の諸特性を表に示す。The properties of the obtained rectangular insulated wire are shown in the table.
比較例
実施例で示した絶縁被膜層（下側絶縁層）を形成する方
法と同一の条件で、静電流動浸漬法のみにより絶縁被膜
層を形成した。得られた平角絶縁電線の諸特性を同表中
に示した。Comparative Example An insulating coating layer was formed only by the electrostatic dynamic dipping method under the same conditions as the method for forming the insulating coating layer (lower insulating layer) shown in the example. The properties of the obtained rectangular insulated wire are shown in the same table.
（以下余白） 表 傘＋３Ｏ℃Ｘ２４ｈｒＳ加熱、ストラッカー法による。(Margin below) table Umbrella + 30°C x 24hrs heating by Strucker method.
［発明の効果］
以上の実施例から明らかなように本発明によれば、粉体
塗装法による絶縁層の外周に自己融着性絶縁塗料の塗イ
ｈ焼付層を設けたことにより、絶縁破壊電圧に優れた平
角絶縁電線が１ｑられ、従って巻線時のコイルの寸法安
定性や巻線後のコイル強度を増大させることができる。[Effects of the Invention] As is clear from the above examples, according to the present invention, by providing a baked layer of a self-adhesive insulating paint on the outer periphery of an insulating layer using a powder coating method, insulation breakdown is prevented. 1q of rectangular insulated wires with excellent voltage can be obtained, and therefore the dimensional stability of the coil during winding and the strength of the coil after winding can be increased.
図は本発明に用いられる製造装置の概略図である。 １・・・・・・・・・粉体塗装室 ２・・・・・・・・・加熱炉 ３・・・・・・・・・塗布槽 The figure is a schematic diagram of a manufacturing apparatus used in the present invention. 1・・・・・・・・・Powder coating room 2・・・・・・Heating furnace 3・・・・・・・・・Coating tank
Claims (1)
体塗装室に通過させて、その表面に前記合成樹脂粉体を
付着させ、次いで付着した合成樹脂粉体を導体上に加熱
融着させて絶縁被膜層を形成した後、自己融着性絶縁塗
料の塗布槽中に通過せしめ、次いで焼付炉中に通過させ
て自己融着性絶縁被膜層を形成させることを特徴とする
平角絶縁電線の製造方法。(1) A rectangular conductor is passed through a powder coating chamber filled with charged synthetic resin powder to adhere the synthetic resin powder to its surface, and then the adhered synthetic resin powder is heated and melted onto the conductor. A rectangular insulator characterized in that the rectangular insulation is coated to form an insulating coating layer, passed through a coating tank of a self-bonding insulating paint, and then passed through a baking oven to form a self-bonding insulating coating layer. Method of manufacturing electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19640786A JPS6353819A (en) | 1986-08-21 | 1986-08-21 | Manufacture of flat type insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19640786A JPS6353819A (en) | 1986-08-21 | 1986-08-21 | Manufacture of flat type insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6353819A true JPS6353819A (en) | 1988-03-08 |
Family
ID=16357346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19640786A Pending JPS6353819A (en) | 1986-08-21 | 1986-08-21 | Manufacture of flat type insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6353819A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491014U (en) * | 1990-12-25 | 1992-08-07 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5113837A (en) * | 1974-07-26 | 1976-02-03 | Dainichi Nippon Cables Ltd | Zetsuendensenno seizohoho |
-
1986
- 1986-08-21 JP JP19640786A patent/JPS6353819A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5113837A (en) * | 1974-07-26 | 1976-02-03 | Dainichi Nippon Cables Ltd | Zetsuendensenno seizohoho |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491014U (en) * | 1990-12-25 | 1992-08-07 |
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