JPS62238398A - Painting method by electrodeposition - Google Patents
Painting method by electrodepositionInfo
- Publication number
- JPS62238398A JPS62238398A JP8102886A JP8102886A JPS62238398A JP S62238398 A JPS62238398 A JP S62238398A JP 8102886 A JP8102886 A JP 8102886A JP 8102886 A JP8102886 A JP 8102886A JP S62238398 A JPS62238398 A JP S62238398A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- washing
- electrodeposition
- painted
- heating
- 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
- 238000004070 electrodeposition Methods 0.000 title claims abstract description 34
- 238000010422 painting Methods 0.000 title claims abstract description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000000576 coating method Methods 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 10
- 125000002091 cationic group Chemical group 0.000 claims abstract description 7
- 230000004907 flux Effects 0.000 claims abstract description 7
- 239000003973 paint Substances 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 24
- 238000001035 drying Methods 0.000 abstract description 17
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 238000005507 spraying Methods 0.000 abstract description 13
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229940098458 powder spray Drugs 0.000 description 10
- 235000019646 color tone Nutrition 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000257465 Echinoidea Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は電着塗装方法に係り、特に上塗り塗装を省くよ
うにしたカチオン形の電着塗装方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an electrodeposition coating method, and particularly to a cationic electrodeposition coating method that eliminates the need for a top coat.
（従来の技術）
従来、配電盤や制御盤の箱体や付属部品等の電着塗装を
行なう場合、アニオン形の電着塗装により下塗りした後
、溶剤により上塗りを施すようにしていた。(Prior Art) Conventionally, when electrocoating the boxes and accessories of switchboards and control panels, the undercoat was applied with anionic electrocoating, and then the topcoat was applied with a solvent.
このアニオン形電着塗装により、例えば、アンセル記号
５Ｙ７／１の色調の電檻塗装を行なう場合は、次のよう
な工程で行なわれる。When applying this anionic electrodeposition coating to a color tone of Ansell symbol 5Y7/1, for example, the following steps are performed.
予（！脱脂→説脂→第一水洗→第二水洗→表面調整→皮
膚化成→第三水洗→第四水洗→純水洗→水切乾燥→電肴
塗装（２０〜３０ ！ｌ １ｒＬ）→第一水洗→第二水
洗→第三水洗→純水洗→乾燥→上塗り塗装（溶剤形塗装
３０〜４０μｍｒＬ）→乾燥どなっている。Preliminary (! Degreasing → Degreasing → First washing → Second washing → Surface conditioning → Skin formation → Third washing → Fourth washing → Pure water washing → Draining and drying → Electric coating (20 to 30 !l 1rL) → First Water washing → second water washing → third water washing → pure water washing → drying → top coating (solvent coating 30 to 40 μm rL) → drying.
しかし、近年耐食性が優れていることからアニオン形ａ
ｉ着塗装に代わりカチオン形電着塗装を用い、上塗りを
省略する方法が多く用いられるようになっできた。However, in recent years, because of its superior corrosion resistance, anionic type a
Instead of i-coat coating, cationic electrodeposition coating is used, and a method of omitting topcoating has come to be widely used.
（発明が解決しようとする問題点）
しかし、上記のＪ：うに上塗りを施さないカチオン形電
着塗装では、第２図に示すように、電着塗装後に行なわ
れる乾燥時の加熱温度および加熱時間や電気炉内の換気
巣作等により黄変度が左右され、色差Δ［は、通常の電
？Ｔ塗装ラインで６〜８・電気炉内の空気の換気が」−
分に（１なねれないと１０〜２０にも達して（］まい、
もしこの色差の大きい色調の配電盤や制御盤を配置づ′
ると、極めて美観を［１うこととなってしまう。(Problems to be Solved by the Invention) However, in the above-mentioned J: sea urchin, in the cationic electrodeposition coating without topcoating, the heating temperature and heating time during drying after the electrodeposition coating is as shown in Figure 2. The degree of yellowing is influenced by the temperature and ventilation inside the electric furnace. At the T painting line, 6-8. Ventilation of the air inside the electric furnace.
If I don't get 1 in a minute, I won't reach 10-20.
If you place a switchboard or control panel with a color tone with a large color difference,
This results in an extremely poor aesthetic appearance.
本発明は上記した点に鑑みてなされたちので、色差の少
ない塗装を行なうことができ、美観をに１うことのない
電着塗装方法を提供することを目的とするものである。The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide an electrodeposition coating method that can perform coating with little color difference and that does not impair the aesthetic appearance.
Ｃ発明の構成〕
（問題点を解決するための手段）
上記目的を達成するため本発明に係る電着塗装方法は、
カチオン形電着塗装を施した後、被塗装物表面に付着し
た電着塗料をフラックス化した水で水洗し仕上げ水洗を
行なわずに加熱乾燥し、所定の色調の粉体噴霧塗装を施
すようにしている。C Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the electrodeposition coating method according to the present invention includes:
After applying cationic electrodeposition coating, the electrodeposition paint adhering to the surface of the object to be coated is washed with fluxed water, then heated and dried without rinsing, and a powder spray coating of a predetermined color tone is applied. ing.
（作 川）
本発明は、電着塗装後に粉体噴霧塗装を施すので、色′
Ａ副調整再能となり、まＩこ、電着＜８装後に仕上げ水
洗を行なわないため、その加熱乾燥の余熱で粉末を融着
することができ、層間密着性が高まり、その後の加熱乾
燥ら不要となる。(Sakukawa) In the present invention, since powder spray coating is applied after electrodeposition coating, the color
Since there is no finishing washing with water after 8 layers of electrodeposition, the remaining heat from heating and drying can fuse the powder, increasing interlayer adhesion and reducing the need for subsequent heating and drying. No longer needed.
（実施例） 以下、本発明の実施例につき詳細に説明−する。(Example) Hereinafter, embodiments of the present invention will be described in detail.
本実施例において電着塗装を行なう場合は、次の工程に
より行なわれる。In this example, when electrodeposition coating is performed, the following steps are performed.
予備ＩＢ！ＩＩ→脱脂→第一水洗→第二水洗−→表面調
整→皮膜化成→第三水洗→第四水洗−÷純水洗→水切乾
燥→電着塗装（２０〜３０μＴ１１）→第一フラックス
水洗→第二フラックス水洗→加熱乾燥→粉体噴霧塗装（
１０〜１５μＴｎ、）。Reserve IB! II → Degreasing → First washing → Second washing - → Surface conditioning → Film formation → Third washing → Fourth washing - ÷ Pure water washing → Draining and drying → Electrodeposition coating (20 to 30μT11) → First flux washing → Second Flux washing → heating drying → powder spray coating (
10-15μTn,).
上記工程により電着塗装を行なったら、フラックス水で
水洗後直ちに１８０〜２１０℃Ｃ加熱し、この加熱乾燥
で生じた５Ｙ７／１の黄変をアクリル樹脂粉体噴霧塗装
で修正する。After the electrodeposition coating is carried out in the above process, it is immediately heated at 180 to 210° C. after washing with flux water, and the yellowing of 5Y7/1 caused by this heating drying is corrected by spray coating with acrylic resin powder.
本実施例においては、電着塗装加熱乾燥時の変色を粉体
噴霧塗装で色調調整することができ、その際、上記加熱
の余熱を利用するため粉体噴霧塗装後の加熱乾燥工程を
省略することができる。In this example, the color change during heating and drying of electrodeposition coating can be adjusted by powder spraying, and in this case, the heating and drying process after powder spraying is omitted because the residual heat from the heating is used. be able to.
また、電着塗装後の仕上げ水洗を省略しても電着塗ｌＩ
ｌ［１ｌｌＱが冷えてから粉体噴霧塗装を施すのと責な
り、電着塗装後の加熱乾燥余熱でアクリル樹脂の微粉末
を＠着するため層間密＠性が向上する。In addition, even if you omit the finishing wash after electrodeposition coating,
This is because the powder spray coating is applied after the coating has cooled down, and the fine powder of the acrylic resin is deposited using the residual heat from heating and drying after the electrodeposition coating, which improves the interlayer density.
その結果、第１図に示すように、従来、加熱乾燥後に変
色したものが、１０〜１５μ罷程度の膜厚の粉体塗装を
施すことにより、２０程度の色差があったものを２〜３
以下の色調に１！Ｉ整することができる。As a result, as shown in Figure 1, by applying powder coating with a film thickness of about 10 to 15 microns, the color difference of about 20 was reduced by 2 to 3.
1 for the following color tones! I can adjust it.
また、エポキシ樹脂電着被膜とアクリル樹脂粉体噴ｎ１
２膜との層ｃＩ密着性を調べるため、１＃１幅のクロス
カットセロテープ試験を行なった結果、１００／１００
で全く剥離は認められず、良好な密着性を示した。In addition, epoxy resin electrodeposited coating and acrylic resin powder spray n1
In order to examine the adhesion of the layer cI to the two films, a 1#1 width cross-cut cellotape test was conducted, and the result was 100/100.
No peeling was observed, indicating good adhesion.
また、電着ｔｉ後の仕上げ水洗を省くことができるので
、電着塗料を含ｌυだ水洗水の排出がなくなり、電着塗
に後の水洗水を対象とする排水処１７１装買およσ電着
塗装後にお【Ｊる加熱乾燥時の余熱で粉体噴霧塗装の加
熱乾燥を行なうことが（・きるため、粉体噴霧塗装後の
加熱工程をも省くことができる。In addition, since the final washing after electrodeposition can be omitted, there is no need to discharge washing water that contains electrodeposition paint, and drainage treatment and sigma treatment for washing water after electrodeposition coating can be eliminated. After coating, the powder spray coating can be heated and dried using the residual heat from heating and drying, so the heating process after powder spray coating can be omitted.
なお、上記塗装方法は、配電盤、υ制御盤の箱体や部品
にとどまらず他の金属部品（鋼材、アルミ、銅等）に適
用しても上記実施例と同様の効果を得ることができる。Note that the above coating method can be applied not only to boxes and parts of switchboards and υ control boards, but also to other metal parts (steel, aluminum, copper, etc.) to obtain the same effects as in the above embodiments.
また、粉体噴霧の膜厚を調整することにより模様（凸凹
）を施した塗装を行なうこともできる。Further, by adjusting the film thickness of the powder spray, it is also possible to perform coating with a pattern (unevenness).
以上述べたように本発明に係る電着塗装方法は、電着塗
装後に７ラツクス水の水洗を１１ない加熱乾燥後、粉体
噴霧塗装を行なうようにしたので、上記粉体噴霧塗装に
より色調調整が可能となり、６１食性を損わずに色差の
少ない塗膜を得ることかできる。また、２種類の塗料材
を１回の乾燥で塗装するようにしているので、時間およ
び熱エネルギーの削減を図ることができ、ざらに、水洗
をフラックス水で行なうため、領水処理装置を省略Ｊ−
ることができる等の効果を奏する。As described above, in the electrodeposition coating method according to the present invention, powder spray coating is performed after electrodeposition coating, washing with 7 lac water and heating and drying for 11 seconds, so that the color tone can be adjusted by the powder spray coating. This makes it possible to obtain a coating film with little color difference without impairing edibility. In addition, since two types of paint materials are applied in one drying process, it is possible to reduce time and heat energy, and since washing is performed with flux water, water treatment equipment is omitted. −
This has effects such as being able to
４３図面の１！！！甲な説明
第１図は本発明の電着塗装方法による塗装〜さと色差と
の関係を示す特性図、第２図は従来の電着塗装方法によ
る加熱乾燥条件と４股の指定色に対づ“る色差との関係
を示す特性図である。1 of 43 drawings! ! ! Explanation: Figure 1 is a characteristic diagram showing the relationship between coating and color difference using the electrodeposition coating method of the present invention, and Figure 2 is a graph showing the relationship between heating and drying conditions and designated colors of the four legs using the conventional electrodeposition coating method. FIG.
出願人代理人 ４Ｊｉ 鎧 −雄−＃ｙ４本′
ａ盲１塗硬ツ塗腹岸さ （μｍ）第１目
□、ＩＵ熱湯＆ （℃）
第２図Applicant's agent 4Ji Armor -Male-#y4pcs'
a blind 1 coat hard tsu coated belly shore (μm) 1st □, IU boiling water & (℃) Fig. 2
Claims (1)
させる電着塗装方法において、電着塗装後に、上記被塗
装物をフラックス水で水洗し、加熱乾燥した後、粉体塗
料を噴霧状に塗装し色調を整える工程を行なうことを特
徴とする電着塗装方法。In the electrodeposition coating method in which paint is applied to the surface of the object to be coated by cationic electrodeposition, after the electrodeposition coating, the object to be coated is washed with flux water, heated and dried, and then the powder coating is applied in the form of a spray. An electrodeposition coating method characterized by a process of painting and adjusting the color tone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8102886A JPS62238398A (en) | 1986-04-10 | 1986-04-10 | Painting method by electrodeposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8102886A JPS62238398A (en) | 1986-04-10 | 1986-04-10 | Painting method by electrodeposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62238398A true JPS62238398A (en) | 1987-10-19 |
Family
ID=13735017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8102886A Pending JPS62238398A (en) | 1986-04-10 | 1986-04-10 | Painting method by electrodeposition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238398A (en) |
-
1986
- 1986-04-10 JP JP8102886A patent/JPS62238398A/en active Pending
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