JPH0465159B2 - - Google Patents
Info
- Publication number
- JPH0465159B2 JPH0465159B2 JP17818385A JP17818385A JPH0465159B2 JP H0465159 B2 JPH0465159 B2 JP H0465159B2 JP 17818385 A JP17818385 A JP 17818385A JP 17818385 A JP17818385 A JP 17818385A JP H0465159 B2 JPH0465159 B2 JP H0465159B2
- Authority
- JP
- Japan
- Prior art keywords
- mist
- electrodeposition
- organic solvent
- varnish
- polymer layer
- 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
- 239000003595 mist Substances 0.000 claims description 38
- 238000004070 electrodeposition Methods 0.000 claims description 25
- 239000003960 organic solvent Substances 0.000 claims description 23
- 239000002966 varnish Substances 0.000 claims description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 229920000620 organic polymer Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 13
- 238000009835 boiling Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、たとえば絶縁電線のように耐電圧強
度や機械的強度に優れた有機高分子の被覆層を必
要とする物品の製造に好適な、電着塗装体の製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric wire suitable for manufacturing articles such as insulated wires that require an organic polymer coating layer with excellent voltage resistance and mechanical strength. The present invention relates to a method for producing a coated body.
従来の技術
従来、電着ワニス浴中を被塗装体に課電下に通
過させてその表面に有機高分子層を形成し、これ
を焼付処理して電着塗装体を製造する方法とし
て、該焼付処理に先立つて有機高分子層を、加熱
下に有機溶媒を沸騰させて得た蒸気に常温の空気
を混合して形成した有機溶媒のミストにより処理
する方法が知られていた。このミストによる処理
は、電着処理時に形成される有機高分子層が粒状
の樹脂分の堆積層からなる崇高な構造を有するも
のであるため、ミストにより粒状の樹脂分を膨潤
ないし溶解させて粒状構造を破壊し、これにより
ピンホールのない焼付塗膜を形成するためのもの
である。BACKGROUND TECHNOLOGY Conventionally, as a method for producing an electrodeposition coated body, an organic polymer layer is formed on the surface of an object to be coated by passing it through an electrodeposition varnish bath while being electrically charged, and this is baked. A known method is to treat the organic polymer layer prior to the baking treatment with an organic solvent mist formed by mixing air at room temperature with vapor obtained by boiling an organic solvent under heating. In this mist treatment, the organic polymer layer formed during electrodeposition has a sublime structure consisting of a deposited layer of granular resin, so the mist swells or dissolves the granular resin and forms the particles. The purpose is to destroy the structure and thereby form a pinhole-free baked coating.
発明が解決しようとする問題点
しかしながら、従来の方法においては有機溶媒
のミストの発生方式を、有機溶媒を加熱下に沸騰
させて得た溶媒蒸気に常温の空気を混合する方式
によつていたため、下記（）及び（）問題点
を有していた。Problems to be Solved by the Invention However, in the conventional method, the organic solvent mist was generated by mixing room-temperature air with the solvent vapor obtained by boiling the organic solvent under heating. , had the following problems () and ().
() 電着ワニスの種類や電着処理速度等の条件
によつてミスト中の有機溶媒の粒子径や濃度及
びミストそのものの温度などを最適化すること
が望まれるのであるが、従来のミスト発生方式
ではその調節可能範囲が極めて狭い。そのた
め、従来方法では電着処理速度を上げることに
限界があり、その生産効率性の点で満足できる
ものでなかつた。() It is desirable to optimize the particle size and concentration of the organic solvent in the mist, as well as the temperature of the mist itself, depending on conditions such as the type of electrodeposition varnish and the electrodeposition processing speed. With this method, the adjustable range is extremely narrow. Therefore, in the conventional method, there is a limit to increasing the electrodeposition processing speed, and the production efficiency is not satisfactory.
() 高沸点の有機溶媒を使用する場合にはその
蒸気を発生させるために大きな加熱エネルギー
を必要とし、また、発生蒸気が高温であるため
処理条件の最適化のための制御が一層困難にな
る。() When using an organic solvent with a high boiling point, a large amount of heating energy is required to generate the vapor, and the high temperature of the generated vapor makes it more difficult to control to optimize the processing conditions. .
問題の解決手段及び作用
本発明者らは、上記の問題を克服するために鋭
意研究を重ねた結果、超音波による有機溶媒のミ
スト発生方式によりその目的を達成しうることを
見出した。Means for Solving the Problems and Effects The present inventors have conducted extensive research to overcome the above problems, and as a result, have discovered that the purpose can be achieved by a method of generating organic solvent mist using ultrasonic waves.
超音波によるミストの発生方式は超音波加湿器
などの場合と同様であり、ミスト発生量、粒子径
などは振動数、出力、振動子から液面までの距離
などにより容易にコントロールすることができ
る。したがつて、超音波による有機溶媒のミスト
発生方式によれば、有機溶媒の沸点に関係なく有
機溶媒粒子の発生量の制御が容易なので、混合す
る空気ないしその他の気体の量や温度を制御する
ことにより広範囲のミスト状態を容易に創設する
ことができる。 The method of generating mist using ultrasonic waves is the same as that of ultrasonic humidifiers, and the amount of mist generated, particle size, etc. can be easily controlled by adjusting the frequency, output, distance from the vibrator to the liquid surface, etc. . Therefore, according to the organic solvent mist generation method using ultrasonic waves, it is easy to control the amount of organic solvent particles generated regardless of the boiling point of the organic solvent, so the amount and temperature of air or other gas to be mixed can be controlled. This makes it possible to easily create a wide range of mist conditions.
本発明の電着塗装体の製造方法は、電着ワニス
を用いて電着方式により被塗装体の表面に有機高
分子層を形成し、次いで該有機高分子層を超音波
により発生せしめた有機溶媒のミストにより処理
したのち焼付処理することを特徴とする。 The method for producing an electrodeposition coated object of the present invention involves forming an organic polymer layer on the surface of the object to be coated by an electrodeposition method using an electrodeposition varnish, and then forming an organic polymer layer using ultrasonic waves. It is characterized in that it is treated with a solvent mist and then subjected to a baking treatment.
以下、本発明の方法を絶縁電線を製造する場合
を例に説明する。 Hereinafter, the method of the present invention will be explained using an example of manufacturing an insulated wire.
図は製造工程のフローチヤートである。絶縁被
覆されるべき導体１を、先ず電着ワニス２１を入
れた電着槽２に導入し、次いでミスト処理室３及
び焼付炉４を順次連続的に走行通過させて目的物
の絶縁被覆電線１′を製造する。 The figure is a flowchart of the manufacturing process. A conductor 1 to be insulated is first introduced into an electrodeposition bath 2 containing an electrodeposition varnish 21, and then passed through a mist treatment chamber 3 and a baking furnace 4 in order to form the target insulation-covered electric wire 1. ′ is manufactured.
電着槽２においては、これを通過する間に課電
状態下におけるその電圧差に基づいて電着ワニス
中の樹脂分が導体上に堆積して有機高分子層が形
成される。 In the electrodeposition tank 2, the resin in the electrodeposition varnish is deposited on the conductor based on the voltage difference under the energized state while passing through the tank 2, thereby forming an organic polymer layer.
ミスト処理室３においては、これを通過する間
に該室内に充満する有機溶媒のミスト３１により
該有機高分子層が処理される。 In the mist treatment chamber 3, the organic polymer layer is treated by the organic solvent mist 31 that fills the chamber while passing through the mist treatment chamber 3.
その際、有機溶媒のミスト３１はミスト発生器
５において製造され、導管５１を通つてミスト処
理室３に連続供給される。ミスト発生器５は、空
気供給管５２と有機溶媒供給管５３とを有する密
閉容器５４の底面上に超音波発振用の振動子５５
を設置した構造を有し、振動子５５の振動により
密閉容器５４内に該管５３を介して常時供給さ
れ、常に一定量に満たされた有機溶媒５６が周知
の疑似沸騰状態を呈して有機溶媒の微粒を該容器
５４内の気相部に放出する。放出された微粒は該
供給管５２を介して供給された空気ないしその他
のガスと混合されてミスト状態となり、導管５１
を介してミスト処理室３に至る。 At this time, an organic solvent mist 31 is produced in the mist generator 5 and continuously supplied to the mist treatment chamber 3 through the conduit 51. The mist generator 5 includes a transducer 55 for ultrasonic oscillation on the bottom surface of a closed container 54 having an air supply pipe 52 and an organic solvent supply pipe 53.
The organic solvent 56, which is constantly supplied into the closed container 54 through the pipe 53 by the vibration of the vibrator 55, and which is always filled with a certain amount, exhibits a well-known pseudo-boiling state and the organic solvent The fine particles are discharged into the gas phase within the container 54. The ejected fine particles are mixed with air or other gas supplied through the supply pipe 52 to form a mist, and are then passed through the conduit 51.
The mist processing chamber 3 is reached through the mist processing chamber 3.
ミスト中における有機溶媒粒の大きさ、濃度は
振動子の振動強度、振動周波数、容器５４におけ
る有機溶媒５６の液表面と振動子５５の上表面と
の間の深さ、供給ガス（空気）量などを変えるこ
とによりコントロールすることができ、所望のミ
スト雰囲気が創設される。 The size and concentration of organic solvent particles in the mist are determined by the vibration intensity of the vibrator, the vibration frequency, the depth between the liquid surface of the organic solvent 56 in the container 54 and the upper surface of the vibrator 55, and the amount of supplied gas (air). The desired mist atmosphere can be created by changing the mist atmosphere.
焼付炉４においては、これを通過する間にミス
ト処理された有機高分子層が導体１上に焼付けら
れ、かくして絶縁電線１′が連続生産される。 In the baking furnace 4, the mist-treated organic polymer layer is baked onto the conductor 1 while passing through the baking furnace 4, and thus the insulated wire 1' is continuously produced.
本発明において電着ワニスとしては有機溶媒系
のもの、水系のもののいずれのものも適用可能で
あるが、有機溶媒のミストによる処理で良好に塗
膜特性が改善されるのは、水系のものたとえば水
分散系ワニス、水溶解形ワニスであり、就中水分
散形ワニス、たとえばアクリルワニス、アクリル
−エポキシワニスなどのアクリル系ワニスであ
る。 In the present invention, both organic solvent-based and water-based electrodeposited varnishes can be used, but the coating film properties are favorably improved by treatment with organic solvent mist when using water-based varnishes, such as those based on water. These include water-dispersed varnishes and water-soluble varnishes, especially water-dispersed varnishes, such as acrylic varnishes such as acrylic varnishes and acrylic-epoxy varnishes.
ミストを形成する有機溶媒としては電着処理さ
れて形成された有機高分子層における樹脂分を膨
潤ないし溶解して該高分子層の粒子堆積構造を崩
壊せしめうるものであればその化学種を問わずに
用いることができる。電着ワニスが水系のもので
ある場合には親水性の溶媒、特にはジメチルホル
ムアミド、ジメチルアセトアミド、Ｎ−メチルピ
ロリドンなど、就中電着ワニスがアクリル−エポ
キシ系樹脂の場合にはジメチルホルムアミドが好
ましく用いられる。 The organic solvent for forming the mist may be any chemical species as long as it can swell or dissolve the resin in the organic polymer layer formed by electrodeposition and disrupt the particle deposition structure of the polymer layer. It can be used without When the electrodeposited varnish is aqueous, a hydrophilic solvent such as dimethylformamide, dimethylacetamide, N-methylpyrrolidone, etc. is preferred, especially dimethylformamide is preferred when the electrodeposition varnish is an acrylic-epoxy resin. used.
本発明において電着処理条件、焼付処理条件に
ついて特に限定はなく、従来の処理条件を適用す
ることが可能である。具体的数値をあげると、電
着浴の温度５〜60℃、固形分濃度２〜40重量％、
処理電圧１〜300V、通電時間１秒間〜５分間な
どが一般である。 In the present invention, there are no particular limitations on the electrodeposition processing conditions and baking processing conditions, and conventional processing conditions can be applied. To give specific figures, the temperature of the electrodeposition bath is 5 to 60℃, the solid content concentration is 2 to 40% by weight,
Generally, the processing voltage is 1 to 300 V and the current application time is 1 second to 5 minutes.
発明の効果
本発明によれば超音波によるミスト発生方式と
したので、高沸点溶媒を使用する場合にもミスト
発生に要するエネルギーが少なくてすみ、しかも
任意の濃度、粒度、温度を有する有機溶媒のミス
トを制御性よく製造供給することができる。その
結果、電気絶縁特性、機械的特性などに優れた電
着塗膜を高能率に形成することができる。Effects of the Invention According to the present invention, since the mist generation method uses ultrasonic waves, less energy is required for mist generation even when a high boiling point solvent is used. It is possible to manufacture and supply mist with good controllability. As a result, an electrodeposition coating film having excellent electrical insulation properties, mechanical properties, etc. can be formed with high efficiency.
従つて、本発明は良品質な電着塗膜の要求度の
強いたとえば絶縁電線、ルーゾリーフのバインダ
ー用塗装鉄線などの電着塗装体の製造に特に適し
ている。また、例えば金属メツキ品のトツプコー
ト処理など物品を電着により塗装する場合の後処
理として利用することも可能である。 Therefore, the present invention is particularly suitable for producing electrocoated bodies such as insulated wires and coated iron wires for Luso Leaf binders, which require high quality electrocoated coatings. Furthermore, it can also be used as a post-treatment when an article is coated by electrodeposition, such as a top coat treatment of a metal-plated article.
実施例
直径１mmの軟銅線を陽極として、これをアクリ
ル−エポキシワニス（固形分15重量％、菱電化成
社製、Ｖ−551−20）を入れた電着槽（25℃）中
に導入し、通過（通電時間５秒間、処理電圧7V）
させて軟銅線上にアクリル−エポキシ樹脂槽を形
成させた。Example An annealed copper wire with a diameter of 1 mm was used as an anode and introduced into an electrodeposition bath (25°C) containing acrylic-epoxy varnish (solid content 15% by weight, manufactured by Ryoden Kasei Co., Ltd., V-551-20). , passing (current application time 5 seconds, processing voltage 7V)
An acrylic-epoxy resin tank was formed on the annealed copper wire.
次にこれを、超音波発振器によりジメチルホル
ムアミドの微粒を発生させこれを空気と混合して
得たミスト流が連続供給されているミスト処理室
（常温）に導入し、通過（通過時間10秒）させて
ミスト処理したのち、焼付炉（430℃）を通過さ
せて焼付処理を行い、絶縁層厚さ0.035mmの絶縁
電線を得た。 Next, this is introduced into a mist processing chamber (room temperature) where a mist flow obtained by generating fine particles of dimethylformamide using an ultrasonic oscillator and mixing them with air is continuously supplied, and then passed through (passage time 10 seconds). After the wire was subjected to mist treatment, it was passed through a baking furnace (430° C.) for baking treatment to obtain an insulated wire with an insulation layer thickness of 0.035 mm.
この電線は、外観及び絶縁層の均一性にすぐれ
るものであつた。 This electric wire had excellent appearance and uniformity of the insulating layer.
図は本発明の方法の実施例である絶縁電線を製
造する場合のフローチヤートである。
１：導体（被塗装体）、２：電着槽、３：ミス
ト処理室、４：焼付炉、５：ミスト発生器。
The figure is a flowchart for manufacturing an insulated wire, which is an embodiment of the method of the present invention. 1: Conductor (object to be coated), 2: Electrodeposition tank, 3: Mist processing chamber, 4: Baking furnace, 5: Mist generator.
Claims (1)
の表面に有機高分子層を形成し、次いで該有機高
分子層を超音波により発生せしめた有機溶媒のミ
ストにより処理したのち焼付処理することを特徴
とする電着塗装体の製造方法。 ２ 電着ワニスが水分散形又は水溶液形のもので
あり、有機溶媒が親水性溶媒である請求の範囲第
１項記載の方法。 ３ 水分散形ワニスがアクリル系ワニスであり、
有機溶媒がジメチルホルムアミドである請求の範
囲第２項記載の方法。[Scope of Claims] 1. An organic polymer layer is formed on the surface of an object to be coated by electrodeposition using an electrodeposition varnish, and then the organic polymer layer is treated with a mist of an organic solvent generated by ultrasonic waves. A method for producing an electrodeposition coated body, which is characterized in that it is then subjected to a baking treatment. 2. The method according to claim 1, wherein the electrodeposition varnish is in the form of an aqueous dispersion or an aqueous solution, and the organic solvent is a hydrophilic solvent. 3 The water-dispersed varnish is an acrylic varnish,
3. The method according to claim 2, wherein the organic solvent is dimethylformamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17818385A JPS6237396A (en) | 1985-08-12 | 1985-08-12 | Production of body coated by electrodeposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17818385A JPS6237396A (en) | 1985-08-12 | 1985-08-12 | Production of body coated by electrodeposition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6237396A JPS6237396A (en) | 1987-02-18 |
| JPH0465159B2 true JPH0465159B2 (en) | 1992-10-19 |
Family
ID=16044050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17818385A Granted JPS6237396A (en) | 1985-08-12 | 1985-08-12 | Production of body coated by electrodeposition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6237396A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11230788B2 (en) | 2016-02-18 | 2022-01-25 | Mitsubishi Materials Corporation | Electrodeposition liquid and electrodeposition-coated article |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006252942A (en) * | 2005-03-10 | 2006-09-21 | Mitsubishi Cable Ind Ltd | Regular square insulation cable |
| JP5377535B2 (en) * | 2011-01-31 | 2013-12-25 | 三菱電線工業株式会社 | Insulated wire manufacturing method and manufacturing apparatus |
| JP6001014B2 (en) * | 2014-07-03 | 2016-10-05 | 三菱マテリアル株式会社 | Electrodeposition liquid used to form heat-resistant insulated wires and their insulation layers |
| CN108475562B (en) | 2015-12-16 | 2021-01-08 | 三菱综合材料株式会社 | Heat-resistant insulated wire and electrodeposition liquid for forming insulating layer thereof |
| US10054140B2 (en) | 2016-02-12 | 2018-08-21 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
-
1985
- 1985-08-12 JP JP17818385A patent/JPS6237396A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11230788B2 (en) | 2016-02-18 | 2022-01-25 | Mitsubishi Materials Corporation | Electrodeposition liquid and electrodeposition-coated article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6237396A (en) | 1987-02-18 |
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