JPH05115839A - Coating method for automobile - Google Patents
Coating method for automobileInfo
- Publication number
- JPH05115839A JPH05115839A JP28332391A JP28332391A JPH05115839A JP H05115839 A JPH05115839 A JP H05115839A JP 28332391 A JP28332391 A JP 28332391A JP 28332391 A JP28332391 A JP 28332391A JP H05115839 A JPH05115839 A JP H05115839A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- chassis
- separated
- chassis portion
- painting
- 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.)
- Granted
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車体の少なくともシャ
ーシ部がアルミニウム合金で形成された自動車の塗装方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating method for an automobile in which at least a chassis portion of a vehicle body is made of an aluminum alloy.
【０００２】[0002]
【従来の技術】最近、自動車の重量を軽減するため、車
体の一部又は全部をアルミニウム合金製とするものが知
られている。ところで、ボンネット等の車体の一部をア
ルミニウム合金製とする自動車においても、その塗装
は、車体全部を鉄製とする従来の自動車と同様に、化成
処理等の塗装前処理と、電着塗装と、中塗り、上塗り等
の仕上げ塗装とを車体全域に施すことで行っている（特
開昭６１−１０４０８９号公報参照）。2. Description of the Related Art Recently, in order to reduce the weight of an automobile, it is known that a part or the whole of a vehicle body is made of an aluminum alloy. By the way, even in a car in which a part of the car body such as a bonnet is made of aluminum alloy, its coating is the same as in a conventional car in which the whole car body is made of iron, pre-treatment such as chemical conversion treatment, and electrodeposition coating It is carried out by applying finish coating such as middle coating and top coating to the entire body (see Japanese Patent Laid-Open No. 61-104089).
【０００３】[0003]
【発明が解決しようとする課題】アルミニウム合金は防
錆力が高く、防錆のために電着塗装を行う必要はなく、
車体のシャーシ部をアルミニウム合金で形成する場合、
上記の如く車体全域に電着塗装を施すと、シャーシ部に
ついては高価な電着塗装が浪費されることになる。本発
明は、以上の点に鑑み、アルミニウム合金製のシャーシ
部に対する無駄な電着塗装を廃止してコストダウンを図
れるようにした塗装方法を提供することをその目的とし
ている。Aluminum alloy has a high rust preventive power, and it is not necessary to perform electrodeposition coating for rust prevention.
If the chassis of the car body is made of aluminum alloy,
When the electrodeposition coating is applied to the entire vehicle body as described above, the expensive electrodeposition coating is wasted on the chassis portion. In view of the above points, an object of the present invention is to provide a coating method capable of reducing costs by eliminating wasteful electrodeposition coating on a chassis made of an aluminum alloy.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成すべく、
本発明では、遅くとも塗装前処理工程後に車体をシャー
シ部と、ドア、ボンネット、フェンダ、ルーフ等の車体
外面に露出する外装部材とに分離して、外装部材にのみ
電着塗装を施し、次いで外装部材に仕上げ塗装を施した
後、外装部材をシャーシ部に組付けるようにした。[Means for Solving the Problems] In order to achieve the above object,
In the present invention, the vehicle body is separated into the chassis portion and the exterior member exposed on the outer surface of the vehicle body such as the door, the hood, the fender, and the roof at the latest after the coating pretreatment process, and only the exterior member is subjected to the electrodeposition coating, and then the exterior member. After applying a finish coating to the member, the exterior member was attached to the chassis.
【０００５】[0005]
【作用】外装部材をシャーシ部から分離して、外装部材
にのみ電着塗装を施すことにより、シャーシ部に無駄に
電着塗装を施さずに済む。又、外装部材をシャーシ部か
ら分離した状態で電着塗装するため、シャーシ部に組付
けた状態では着きまわり性が悪くなる部位にも確実に電
着塗膜が形成され、且つ電着槽も小さくて済むためコス
トダウンを図れる。更に、外装部品を塗装に最適な姿
勢、例えば水平姿勢にして、これにレシプロケータ等の
簡易な塗装機で中塗りや上塗り等の仕上げ塗装を施すこ
とができ、高品位な塗装を安価に達成できるようにな
る。尚、シャーシ部と外装部材とを塗装前処理工程の前
に分離し、シャーシ部に化成処理等の塗装前処理に代え
て陽極酸化処理やベーマイト処理を施すようにしても良
い。陽極酸化処理を施す場合には、化成処理と異り乾燥
が不要となり、更には着色することも可能となり、又ベ
ーマイト処理を施す場合には、湯や蒸気を用いるだけで
あるため、排液処理が不要となる利点がある。By separating the exterior member from the chassis and applying the electrodeposition coating only to the exterior member, it is possible to avoid unnecessary use of the electrodeposition coating on the chassis. Further, since the exterior member is applied by electrodeposition in a state where it is separated from the chassis, the electrodeposition coating film is surely formed even on the part where the throwing power deteriorates when assembled on the chassis, and the electrodeposition tank is also Since it is small, cost can be reduced. Furthermore, the exterior parts can be placed in an optimal posture for painting, for example, in a horizontal posture, and a simple coating machine such as a reciprocator can be used to apply finish coating such as intermediate coating and top coating, achieving high-quality painting at low cost. become able to. Note that the chassis portion and the exterior member may be separated before the coating pretreatment process, and the chassis portion may be subjected to anodizing treatment or boehmite treatment instead of pretreatment such as chemical conversion treatment. Unlike the chemical conversion treatment, drying is not necessary when anodizing treatment is performed, and it is possible to further color it.When performing boehmite treatment, only hot water or steam is used. There is an advantage that is unnecessary.
【０００６】[0006]
【実施例】本発明方法を図１に示す自動車の塗装に適用
した実施例について説明する。この自動車は、シャーシ
部１と、ドア２、ボンネット３、トランクリッド４、フ
ロント及びリヤのフェンダ５、ルーフ６から成る外装部
材とで構成されており、シャーシ部１と外装部材とを全
てアルミニウム合金製とした。このように外装部材をア
ルミニウム合金製とすると、その損傷時に鉄製部材の如
く板金処理できないため、外装部材を全てシャーシ部１
にボルト止めして、損傷時に各外装部材を交換できるよ
うにした。EXAMPLE An example in which the method of the present invention is applied to the painting of the automobile shown in FIG. 1 will be described. This automobile is composed of a chassis portion 1 and an exterior member including a door 2, a hood 3, a trunk lid 4, front and rear fenders 5, and a roof 6. The chassis portion 1 and the exterior member are all made of an aluminum alloy. It was made. If the exterior member is made of an aluminum alloy as described above, sheet metal processing cannot be performed when the exterior member is damaged, unlike the iron member.
It was bolted to each exterior member so that it can be replaced when damaged.
【０００７】塗装に際しては、図２に示す如く、外装部
材２〜６をシャーシ部１に組付けた状態で車体全域に脱
脂処理と、化成処理（リン酸亜鉛処理やクロメート処
理）等の塗装前処理とを施し、次にシャーシ部１から全
ての外装部材２〜６を分離し、これら外装部材に電着塗
装と、次いで中塗り、上塗りの仕上げ塗装を施す。一
方、シャーシ部１には、電着塗装を施すことなく、常法
に従ってシーリング剤の塗布と、シャーシ部下面へのＰ
ＶＣ（ポリビニールクロライド）の塗布とを行い、その
後シャーシ部１の艤装と外装部材たるドア２等の艤装と
を行い、次いで全ての外装部材をシャーシ部１に組付け
る。Before painting, as shown in FIG. 2, before the exterior members 2 to 6 are assembled to the chassis portion 1, degreasing treatment and chemical conversion treatment (zinc phosphate treatment or chromate treatment) are performed on the entire vehicle body. Then, all of the exterior members 2 to 6 are separated from the chassis portion 1, and the exterior members are subjected to electrodeposition coating, followed by intermediate coating and top coating. On the other hand, the chassis 1 is coated with a sealing agent according to a conventional method without applying electrodeposition coating, and P is applied to the lower surface of the chassis.
VC (polyvinyl chloride) is applied, and then the chassis 1 and the doors 2 and the like, which are exterior members, are fitted, and then all the exterior members are assembled to the chassis 1.
【０００８】図３は他の実施例を示し、このものでは、
シャーシ部１と外装部材とを最初から分離しておき、シ
ャーシ部１に脱脂処理を施した後、塗装前処理に代えて
陽極酸化処理或いはベーマイト処理を施し、その後上記
実施例と同様にシーリング剤やＰＶＣの塗布と艤装とを
行うようにした。この場合、外装部材には、脱脂処理と
塗装前処理とを施した後、上記実施例と同様に電着塗
装、中塗り、上塗り、艤装を施し、最後にシャーシ部１
に外装部材を組付ける。FIG. 3 shows another embodiment, in which
The chassis portion 1 and the exterior member are separated from the beginning, and after the chassis portion 1 is degreased, anodizing treatment or boehmite treatment is applied instead of the pretreatment for coating, and then the sealing agent is used in the same manner as in the above embodiment. The application of PVC or PVC and the outfitting were performed. In this case, the exterior member is subjected to degreasing treatment and pretreatment for coating, and then subjected to electrodeposition coating, intermediate coating, top coating, and outfitting in the same manner as in the above embodiment, and finally the chassis portion 1
Attach the exterior member to.
【０００９】尚、シャーシ部１の中で特にドア開口部は
目につき易いが、塗装を行わなくともシャーシ部の色は
アルミニウム合金自体が持つシルバー色となるため、違
和感は生じない。気になるようであれば、ドア開口部等
の目につき易い部分にのみ塗装を施したり、カバー部材
を取付ければ良い。Although the door opening is particularly noticeable in the chassis 1, the color of the chassis becomes the silver color of the aluminum alloy itself even if it is not painted, so that no discomfort occurs. If you are concerned, it is sufficient to apply coating only to the easily visible parts such as the door opening or to attach the cover member.
【００１０】[0010]
【発明の効果】以上の説明から明らかなように、請求項
１の発明によれば、外装部材にこれをシャーシ部から分
離した状態で電着塗装と仕上げ塗装とを施せるため、電
着塗膜の着きまわり性が向上すると共に、外装部品を最
適姿勢に置いて良好に仕上げ塗装でき、塗装品質が向上
し、且つ電着槽や塗装機が小型簡易なもので足り、而も
シャーシ部に無駄に電着塗装を施さずに済み、大幅なコ
ストダウンを図れる。又、請求項２や請求項３の発明の
如く、シャーシ部に陽極酸化処理やベーマイト処理を施
すことでシャーシ部の耐久性を向上できると共に、化成
処理を施す場合に比し乾燥や排液処理を不要として生産
性を向上できる。As is apparent from the above description, according to the first aspect of the present invention, since the exterior member can be subjected to electrodeposition coating and finish coating in a state where it is separated from the chassis portion, the electrodeposition coating film can be applied. The outer parts can be placed in an optimal position for good finish painting, the coating quality can be improved, and the electrodeposition tank and coating machine can be small and simple, which is wasteful on the chassis. It does not require electro-deposition coating, and can significantly reduce costs. Further, as in the invention of claim 2 or claim 3, by performing anodizing treatment or boehmite treatment on the chassis portion, the durability of the chassis portion can be improved, and drying or drainage treatment can be performed as compared with the case of performing chemical conversion treatment. Can be eliminated and productivity can be improved.
【図１】 本発明方法を適用する自動車の一例の分解斜
視図FIG. 1 is an exploded perspective view of an example of an automobile to which the method of the present invention is applied.
【図２】 本発明方法の一例の工程図FIG. 2 is a process chart of an example of the method of the present invention.
【図３】 本発明方法の他の実施例の工程図FIG. 3 is a process chart of another embodiment of the method of the present invention.
１ シャーシ部 ２〜６ 外装部材 1 Chassis part 2-6 Exterior member
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ２５Ｄ 13/12 Ａ Continuation of front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C25D 13/12 A
Claims (3)
ウム合金で形成された自動車を塗装する方法であって、
遅くとも塗装前処理工程後に車体をシャーシ部と、ド
ア、ボンネット、フェンダ、ルーフ等の車体外面に露出
する外装部材とに分離して、外装部材にのみ電着塗装を
施し、次いで外装部材に仕上げ塗装を施した後、外装部
材をシャーシ部に組付けることを特徴とする自動車の塗
装方法。1. A method of painting an automobile in which at least a chassis portion of a vehicle body is formed of an aluminum alloy,
At the latest after the pretreatment process for painting, the car body is separated into the chassis part and the exterior members exposed on the exterior surface of the vehicle such as doors, bonnets, fenders, roofs, etc., and only the exterior members are electro-deposited, and then the exterior members are finish coated. After coating, the exterior member is assembled to the chassis part, which is a coating method for an automobile.
と外装部材とに分離し、シャーシ部に対し塗装前処理に
代えて陽極酸化処理を施すことを特徴とする請求項１に
記載の自動車の塗装方法。2. The method according to claim 1, wherein the vehicle body is separated into a chassis portion and an exterior member before the coating pretreatment step, and the chassis portion is anodized instead of the coating pretreatment. How to paint a car.
と外装部材とに分離し、シャーシ部に対し塗装前処理に
代えてベーマイト処理を施すことを特徴とする請求項１
に記載の自動車の塗装方法。3. The vehicle body is separated into a chassis portion and an exterior member before the painting pretreatment step, and the chassis portion is subjected to boehmite treatment instead of the painting pretreatment.
The car painting method described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28332391A JP3406324B2 (en) | 1991-10-29 | 1991-10-29 | How to paint a car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28332391A JP3406324B2 (en) | 1991-10-29 | 1991-10-29 | How to paint a car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05115839A true JPH05115839A (en) | 1993-05-14 |
| JP3406324B2 JP3406324B2 (en) | 2003-05-12 |
Family
ID=17663984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28332391A Expired - Fee Related JP3406324B2 (en) | 1991-10-29 | 1991-10-29 | How to paint a car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3406324B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6678936B2 (en) | 1999-07-09 | 2004-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body coating method for automobile |
| WO2012084086A1 (en) | 2010-12-23 | 2012-06-28 | Daimler Ag | Method for manufacturing a motor vehicle and a motor vehicle |
| CN106191965A (en) * | 2016-08-19 | 2016-12-07 | 重庆长安汽车股份有限公司 | A kind of anti-electrophoresis current mark flow-guiding structure for fender |
-
1991
- 1991-10-29 JP JP28332391A patent/JP3406324B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6678936B2 (en) | 1999-07-09 | 2004-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body coating method for automobile |
| WO2012084086A1 (en) | 2010-12-23 | 2012-06-28 | Daimler Ag | Method for manufacturing a motor vehicle and a motor vehicle |
| US20140042773A1 (en) * | 2010-12-23 | 2014-02-13 | Daimler Ag | Method for Manufacturing a Motor Vehicle and a Motor Vehicle |
| CN106191965A (en) * | 2016-08-19 | 2016-12-07 | 重庆长安汽车股份有限公司 | A kind of anti-electrophoresis current mark flow-guiding structure for fender |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3406324B2 (en) | 2003-05-12 |
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