JPS63307625A - Manufacture of insulated electric wire - Google Patents
Manufacture of insulated electric wireInfo
- Publication number
- JPS63307625A JPS63307625A JP14227087A JP14227087A JPS63307625A JP S63307625 A JPS63307625 A JP S63307625A JP 14227087 A JP14227087 A JP 14227087A JP 14227087 A JP14227087 A JP 14227087A JP S63307625 A JPS63307625 A JP S63307625A
- Authority
- JP
- Japan
- Prior art keywords
- titanium compound
- powder
- coating
- heating
- wire
- 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 7
- 239000000843 powder Substances 0.000 claims abstract description 27
- 150000003609 titanium compounds Chemical class 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 5
- 239000010936 titanium Substances 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 4
- 239000013522 chelant Substances 0.000 claims abstract description 3
- -1 alkyl titanate Chemical compound 0.000 claims abstract 2
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 claims 1
- 238000009503 electrostatic coating Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- RYSXWUYLAWPLES-MTOQALJVSA-N (Z)-4-hydroxypent-3-en-2-one titanium Chemical compound [Ti].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O RYSXWUYLAWPLES-MTOQALJVSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分計）
本発明は静電粉体塗装による絶縁電線の製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application) The present invention relates to a method of manufacturing an insulated wire by electrostatic powder coating.
（従来の技術）
導体上の絶縁層として、合成樹脂粉末を静電塗装により
導体上に被着し、これを加熱溶融させて絶縁被膜を形成
する、所謂粉体塗装法による絶縁電線の製造方法は、溶
剤を使用しないことから作業環境の向上、コスト的に有
利などのメリットを有し従来のエナメル線に代わるもの
として有望視されている。そしてトランスに使用されて
いる紙巻線等より占積率を高められるなど他の利点もあ
って、近年特にエポキシ系樹脂による粉体塗装絶縁電線
が各方面で実用化されている。(Prior art) A method for manufacturing insulated wires using the so-called powder coating method, in which synthetic resin powder is applied as an insulating layer on a conductor by electrostatic coating, and then heated and melted to form an insulating film. Since it does not use solvents, it has advantages such as an improved working environment and cost advantages, and is seen as a promising alternative to conventional enamelled wire. In recent years, powder-coated insulated wires made of epoxy resin have been put into practical use in various fields, as they have other advantages such as a higher space factor than the paper-wound wires used in transformers.
（発明が解決しようとする問題点）
しかし上記エポキシ系樹脂による粉体塗装絶縁電線は、
従来広（用いられている例えばポリビニルホルマール樹
脂による所謂ホルマール電線に比べ、絶縁皮膜の軟化温
度が低く軟かいためコイル加工時め締付け、加圧変形等
で皮膜表面に損傷を受は易い等の問題が指摘されていた
。(Problems to be solved by the invention) However, the powder-coated insulated wire made of epoxy resin mentioned above has
Compared to the so-called formal electric wires that are conventionally used (for example, made of polyvinyl formal resin), the softening temperature of the insulation coating is lower and softer, so the coating surface is easily damaged by tightening and deformation under pressure during coil processing. was pointed out.
そこでかかる問題を改善する手段の一つとして樹脂皮膜
を有機チタン化合物により改質する方法があり、これは
予め樹脂組成物中にチタン化合物を混入し皮膜化する方
法である。One way to improve this problem is to modify the resin film with an organic titanium compound, and this is a method in which a titanium compound is mixed into the resin composition in advance to form a film.
しかしこの方法は、樹脂皮膜全体がチタン化合物による
架橋で硬化し例えば絶縁電線にあってはその可撓性を失
うこと、及び高価なチタン化合物の使用量を増しコスト
高を招く等の他の問題が免がれなかりた。However, this method has other problems, such as the entire resin film being cured by cross-linking with the titanium compound, which causes it to lose its flexibility, for example in the case of insulated wires, and the need to use expensive titanium compounds, resulting in higher costs. was not spared.
（問題点を解決するための手段）
本発明は、かかる問題を解決すべく検討を重ねた結果、
かかる絶縁電線の絶縁層表面のみをチタン系、化合物に
より改質し該電線被膜の表面硬度を向上させ上述した加
工時等の被膜の傷発生を防止するようにしたものである
。(Means for solving the problems) As a result of repeated studies to solve the problems, the present invention has been developed based on the following:
Only the surface of the insulating layer of such an insulated wire is modified with a titanium-based compound to improve the surface hardness of the wire coating and prevent the occurrence of scratches on the coating during processing as described above.
即ち本発明は、導体上に、分子鎖中にＯＨ基を有する合
成樹脂粉末を静電塗装し加熱溶融硬化させてなる粉体塗
装線上に、有機チタン化合物を塗布し加熱乾燥すること
を特徴とする絶縁電線の製造方法である。That is, the present invention is characterized in that an organic titanium compound is applied onto a powder coating line obtained by electrostatically coating a conductor with a synthetic resin powder having an OH group in its molecular chain and then heat-melting and curing it, followed by heating and drying. This is a method of manufacturing an insulated wire.
本発明において上述の分子鎖中にＯＨ基を有する樹脂と
しては、特にエポキシ系及びポリエステル系樹脂が挙げ
られる。In the present invention, the above-mentioned resins having OH groups in their molecular chains include, in particular, epoxy resins and polyester resins.
そして具体的に本発明においては、導体上への合成樹脂
粉末の粉体塗装による皮膜形成は、次のように行われ、
即ちまず、一端を接地した導体を帯電した合成樹脂粉体
のクラウド層中に導入し、粉体を導体表面に均一に付着
させ加熱炉中を通過させ、粉体樹脂を溶融硬化させ、更
に水冷槽中で冷却し絶縁電線を得るのである。Specifically, in the present invention, film formation by powder coating of synthetic resin powder on a conductor is performed as follows.
That is, first, a conductor with one end grounded is introduced into a cloud layer of charged synthetic resin powder, the powder is uniformly adhered to the conductor surface, passed through a heating furnace, the powder resin is melted and hardened, and then cooled with water. The insulated wire is obtained by cooling it in a bath.
上記加熱炉の温度は、使用樹脂及び皮膜厚等により変わ
るが概ね４００〜４５０℃である。The temperature of the heating furnace varies depending on the resin used, the film thickness, etc., but is approximately 400 to 450°C.
そして得られた絶縁′ＲＳは次に、有機チタン化合物の
入ったバス中に導入され、フェルト等で過剰に付着した
チタン化合物を拭き取り、絶縁電線上に均一にチタン化
合物を塗装し再度加熱炉に導入しチタン化合物を乾燥硬
化させて絶縁電線の表面のみを改質する。The obtained insulation 'RS is then introduced into a bath containing an organic titanium compound, the excess titanium compound adhering to it is wiped off with felt, etc., the titanium compound is evenly coated on the insulated wire, and the titanium compound is placed in a heating furnace again. The titanium compound is introduced and dried and hardened to modify only the surface of the insulated wire.
使用される有機チタン化合物としては、アルキルチタネ
ート又はチタンキレート、より具体的には、テトラブチ
ルチタネート、テトラプロピルチタネート、チタンアセ
チルアセトネートなどがある。The organic titanium compounds used include alkyl titanates or titanium chelates, more specifically tetrabutyl titanate, tetrapropyl titanate, titanium acetylacetonate, and the like.
上記有機チタン化合物の乾燥硬化温度は概ね２５０〜３
００℃で行われる。The drying and curing temperature of the above organic titanium compound is approximately 250 to 3
It is carried out at 00°C.
（作 用）
この発明においては、有機チタン化合物による絶縁体改
質がその表面のみへの塗装及び熱処理で行われるので、
該チタン化合物の使用量が少な（、しかも電線可撓性を
徒らに減少させない。(Function) In this invention, the insulator modification by the organic titanium compound is carried out by coating and heat treating only the surface.
The amount of the titanium compound used is small (and does not unnecessarily reduce the flexibility of the wire).
（実 施 例） 以下実施例によりこの発明を具体的に説明する。(Example) The present invention will be specifically explained below with reference to Examples.
実施例１
エポキシ樹脂粉末（スミライトレジン ＥＣＰ２Ｏ３、
住人デュレズ社）を２Ｘ８ｍの平角ａ４線上に静電粉体
塗装したものを加熱炉（炉長、３．５ｍ 。Example 1 Epoxy resin powder (Sumilite Resin ECP2O3,
A heating furnace (furnace length, 3.5 m) was coated with electrostatic powder coating on a 2 x 8 m rectangular A4 wire.
４００〜４５０℃）で加熱硬化し、冷却水槽中に導入し
常温まで冷却した。次に１ルキルチタネートであるテト
ラブチルチタネート（ＴＡ−２０゜松本製薬製）の槽に
導入しフェルトで適量の付着量に絞ったものを炉長１．
５ｍの炉（２５０〜３００℃）に導入し加熱処理を行い
、更に冷却水槽中に導入し常温まで冷却した。The mixture was cured by heating at 400 to 450°C), introduced into a cooling water bath, and cooled to room temperature. Next, tetrabutyl titanate (TA-20° manufactured by Matsumoto Pharmaceutical Co., Ltd.), which is 1-alkyl titanate, was introduced into a tank and squeezed with felt to an appropriate amount.
It was introduced into a 5 m furnace (250 to 300° C.) and subjected to heat treatment, and further introduced into a cooling water tank and cooled to room temperature.
実施例２
実施例１のチタン化合物をチタンキレートであるチタン
アセチルアセトネート（ＴＣ−１００゜松本製薬製）に
変えて実施例１と同様の方法で行った０
比較例１
実施例１におけるチタン化合物の塗布をしない外は全く
同様にして絶縁電線を製造した。Example 2 The same method as in Example 1 was carried out except that the titanium compound in Example 1 was replaced with titanium acetylacetonate (TC-100゜ manufactured by Matsumoto Pharmaceutical Co., Ltd.), which is a titanium chelate.Comparative Example 1 Titanium compound in Example 1 An insulated wire was manufactured in exactly the same manner except that the coating was not applied.
以上各側による電線の特性を調べた結果は次表１の通り
であった。The results of examining the characteristics of the wires on each side are shown in Table 1 below.
表 １
上表中、
※１： ＪＩＳＣ３２０９６，５金属箔法※２： ＪＩ
ＳＣ３２０９６，７にもとづく上昇軟化法。Table 1 In the above table, *1: JISC32096,5 Metal foil method *2: JI
Rising softening method based on SC32096,7.
荷重１ ｋｇ
実施例３．比較例２
ポリエステル樹脂粉末（テレフタル酸、グリセリン、エ
チレングリコールよすするエチレンテレフタレート共重
合体よりなる樹脂を粉砕し平均３０μｍの粉体とした）
を用いた外は実施例１と同様に行い、又比較例２は実施
例３のチタン化合物塗布を行はなかった。得られた絶縁
電線を同様に評価した結果を次表２に示す。Load: 1 kg Example 3. Comparative Example 2 Polyester resin powder (resin consisting of terephthalic acid, glycerin, and ethylene terephthalate copolymer mixed with ethylene glycol was ground into powder with an average size of 30 μm)
Comparative Example 2 was carried out in the same manner as Example 1 except that the titanium compound coating of Example 3 was not applied. The obtained insulated wire was similarly evaluated and the results are shown in Table 2 below.
表 ２
上記表１及び表２の結果から明らかなように、本発明に
よるものは比較例に比し特に絶縁皮膜表面硬度及び熱軟
化温度が向上する等優れた特性を示し、かつ全体的に安
定した緒特性を有し優れていることが判る。Table 2 As is clear from the results in Tables 1 and 2 above, the products according to the present invention exhibited superior properties such as improved insulation coating surface hardness and thermal softening temperature, and were generally stable compared to the comparative examples. It can be seen that it has excellent properties.
（発明の効果）
本発明は上記の如（導体上に、分子鎖中にＯＨ基を有す
る合成樹脂粉末を静電塗装し加熱溶融硬化させてなる粉
体塗装線上に、有機チタン化合物を塗布し加熱乾燥する
ようにしたので、上記実施例から明らかな如（従来のエ
ポキシ系、粉体塗装線よりも被膜の表面硬度が高く、か
つ可とう性の良い粉体塗装絶縁電線が得られるのであり
工業的価値が極めて大きい。(Effects of the Invention) The present invention is as described above (applying an organic titanium compound on a powder coated line formed by electrostatically coating a conductor with a synthetic resin powder having an OH group in its molecular chain and heating and melting it to harden it). As is clear from the above examples, since heating and drying is used, powder-coated insulated wires with higher surface hardness and better flexibility than conventional epoxy-based or powder-coated wires can be obtained. It has extremely great industrial value.
Claims (3)
末を静電塗装し加熱溶融硬化させてなる粉体塗装線上に
、有機チタン化合物を塗布し加熱乾燥することを特徴と
する絶縁電線の製造方法。(1) Insulation characterized by coating a conductor with an organic titanium compound on the powder coated wire, which is obtained by electrostatically coating a synthetic resin powder having an OH group in its molecular chain and heating and melting it, and then heating and drying it. Method of manufacturing electric wire.
シ系又はポリエステル系熱硬化性樹脂である特許請求の
範囲第１項記載の絶縁電線の製造方法。(2) The method for producing an insulated wire according to claim 1, wherein the synthetic resin having an OH group in its molecular chain is an epoxy or polyester thermosetting resin.
チタンキレートのいづれか１種の化合物である特許請求
の範囲第１項記載の絶縁電線の製造方法。(3) The method for producing an insulated wire according to claim 1, wherein the organic titanium compound is either an alkyl titanate or a titanium chelate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14227087A JPS63307625A (en) | 1987-06-09 | 1987-06-09 | Manufacture of insulated electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14227087A JPS63307625A (en) | 1987-06-09 | 1987-06-09 | Manufacture of insulated electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63307625A true JPS63307625A (en) | 1988-12-15 |
Family
ID=15311450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14227087A Pending JPS63307625A (en) | 1987-06-09 | 1987-06-09 | Manufacture of insulated electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63307625A (en) |
-
1987
- 1987-06-09 JP JP14227087A patent/JPS63307625A/en active Pending
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