JP2001032096A - Electrodeposition coating method for automotive body - Google Patents
Electrodeposition coating method for automotive bodyInfo
- Publication number
- JP2001032096A JP2001032096A JP11209228A JP20922899A JP2001032096A JP 2001032096 A JP2001032096 A JP 2001032096A JP 11209228 A JP11209228 A JP 11209228A JP 20922899 A JP20922899 A JP 20922899A JP 2001032096 A JP2001032096 A JP 2001032096A
- Authority
- JP
- Japan
- Prior art keywords
- electrodeposition
- vehicle
- coating
- tank
- electrodeposition coating
- 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.)
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Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、自動車車体の下塗
り塗装として用いられる電着塗装方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeposition coating method used as an undercoat for an automobile body.
【0002】[0002]
【従来の技術】現在、自動車車体の下塗り塗装として電
着塗装が一般的に用いられている。この自動車車体の電
着塗装は、図6に示すように、自動車の車体(1)をハ
ンガーレール(2)で移動させながら、そのハンガーレ
ール(2)の途中に形成された昇降部(2a)にて車体
(1)を電着槽(3)の電着塗料(4)中に浸漬し、車
体(1)を陰極として、別途に電着塗料(4)中に設け
た陽極との間に設定電圧を印加し、電気化学反応で車体
(1)上に塗装膜を形成させる塗装方法である。2. Description of the Related Art At present, electrodeposition coating is generally used as undercoating of an automobile body. As shown in FIG. 6, the electrodeposition coating of the vehicle body is performed by moving the vehicle body (1) on the hanger rail (2) while moving the vehicle body (1) on the hanger rail (2). Then, the body (1) is immersed in the electrodeposition paint (4) of the electrodeposition tank (3), and the body (1) is used as a cathode and between the anode and the anode separately provided in the electrodeposition paint (4). This is a coating method in which a set voltage is applied and a coating film is formed on the vehicle body (1) by an electrochemical reaction.
【0003】[0003]
【発明が解決しようとする課題】ところで、従来の自動
車車体の電着塗装は、電着槽(4)が単一であるため、
腐食条件や上塗りコート数にかかわらず、一定条件で同
じ電着塗料を使用して行うのが通常である。そのため、
腐食条件や上塗りコート数の異なる複数種の車体を電着
塗装する場合には、腐食環境が最も厳しい地域向きの車
体に合わせて電着塗料および電圧等が設定されるため、
腐食条件が緩やかな地域向きの車体には塗装膜厚が過剰
になるという不具合が生じる。In the conventional electrodeposition coating of an automobile body, a single electrodeposition tank (4) is used.
Usually, the same electrodeposition paint is used under constant conditions regardless of the corrosion conditions and the number of overcoats. for that reason,
When electrodeposition coating multiple types of vehicles with different corrosion conditions and number of top coats, the electrodeposition paint and voltage etc. are set according to the vehicle for the area where the corrosive environment is the most severe,
A problem arises in that a car body suitable for an area having mild corrosion conditions has an excessively large coating film thickness.
【0004】また、電着塗装と上塗り塗装からなる2コ
ート車用の車体の場合、3コート車(電着塗装、中塗り
塗装および上塗り塗装からなる車)用の電着塗料を使う
と上塗り塗装の塗料を透過した紫外線で電着塗装膜が破
壊されるため、2コート車用の特別な電着塗料を用いる
必要がある。On the other hand, in the case of a vehicle body for a two-coat vehicle composed of an electrodeposition coating and a topcoat, a topcoat is applied by using an electrodeposition paint for a three-coat vehicle (a vehicle composed of an electrodeposition coating, an intermediate coating and a topcoat). Since the electrodeposition coating film is destroyed by the ultraviolet light transmitted through the coating material, it is necessary to use a special electrodeposition coating material for two-coat vehicles.
【0005】[0005]
【課題を解決するための手段】本発明は上記課題を解決
するため、電着塗料および設定電圧が異なる複数の電着
槽を設置し、自動車車体を選択的に電着槽の電着塗料中
に浸漬して電着塗装することを特徴としている。According to the present invention, in order to solve the above-mentioned problems, an electrodeposition paint and a plurality of electrodeposition tanks having different set voltages are installed, and a vehicle body is selectively placed in the electrodeposition paint of the electrodeposition tank. It is characterized by being immersed in an electrodeposition coating.
【0006】[0006]
【発明の実施の形態】以下、本発明の実施の形態を図1
乃至図5に基いて説明する。尚、この実施の形態は、腐
食環境が緩やかな地域向きの3コート車用の車体
(A)、腐食環境が厳しい地域向きの3コート車用の車
体(B)および2コート車用の車体(C)を電着塗装す
るようにしたものである。FIG. 1 is a block diagram showing an embodiment of the present invention.
A description will be given based on FIGS. In this embodiment, the body (A) for a three-coat vehicle suitable for a region having a moderate corrosive environment, the body (B) for a three-coat vehicle suitable for a region with a severe corrosive environment, and the vehicle body (B) for a two-coat vehicle C) is to be electrodeposited.
【0007】図1は、本発明の自動車車体の電着塗装方
法で使用される第1〜第4の電着槽(11)〜(14)
の設置関係を示す概略平面図であり、第1の電着槽(1
1)、第2の電着槽(12)および第3の電着槽(1
3)は並列に配置されるとともに、第4の電着槽(1
4)は第2の電着槽(12)の後段に直列に配置され
る。FIG. 1 shows first to fourth electrodeposition tanks (11) to (14) used in the method of electrodeposition coating an automobile body according to the present invention.
FIG. 2 is a schematic plan view showing the installation relationship of a first electrodeposition tank (1).
1), the second electrodeposition tank (12) and the third electrodeposition tank (1).
3) are arranged in parallel, and the fourth electrodeposition tank (1)
4) is arranged in series after the second electrodeposition tank (12).
【0008】第1の電着槽(11)は、図2に示すよう
に、腐食環境が緩やかな地域向きの3コート車用の電着
塗料(15)を車体(A)を完全に浸漬し得るように収
容し、この電着塗料(15)および腐食環境が緩やかな
地域向きの3コート車用の電着塗装に合わせて電圧が設
定されている。As shown in FIG. 2, the first electrodeposition tank (11) is completely immersed in the body (A) with an electrodeposition paint (15) for a three-coat vehicle suitable for a region having a mild corrosive environment. The voltage is set in accordance with the electrodeposition coating (15) and the electrodeposition coating for a three-coat vehicle suitable for an area where the corrosive environment is moderate.
【0009】第2の電着槽(12)は、図3に示すよう
に、腐食環境が厳しい地域向きの3コート車用の電着塗
料(16)を車体(B)を完全に浸漬し得るように収容
し、この電着塗料(16)および腐食環境が厳しい地域
向きの3コート車用の電着塗装に合わせて電圧が設定さ
れている。As shown in FIG. 3, the second electrodeposition tank (12) is capable of completely immersing the vehicle body (B) in an electrodeposition paint (16) for a three-coat vehicle suitable for a region having a severe corrosive environment. The voltage is set in accordance with the electrodeposition coating (16) and the electrodeposition coating for a three-coat vehicle for an area where the corrosive environment is severe.
【0010】第3の電着槽(13)は、図4に示すよう
に、2コート車用の特別な電着塗料(17)を車体
(C)を完全に浸漬し得るように収容し、この電着塗料
(17)および2コート車用の電着塗装に合わせて電圧
が設定されている。As shown in FIG. 4, the third electrodeposition tank (13) contains a special electrodeposition paint (17) for a two-coat vehicle so that the vehicle body (C) can be completely immersed therein. The voltage is set according to the electrodeposition paint (17) and the electrodeposition paint for a two-coat vehicle.
【0011】第4の電着槽(14)は、図5に示すよう
に、腐食環境が厳しい地域向きの3コート車用の防錆力
向上電着塗料(18)を車体(B)の約半分(下部)を
浸漬し得るように収容し、かつ、この防錆力向上電着塗
料(18)に合わせて電圧が設定されている。As shown in FIG. 5, the fourth electrodeposition tank (14) is provided with an electrodeposition paint (18) for improving corrosion resistance for a three-coat vehicle suitable for an area having a severe corrosive environment. The half (lower part) is accommodated so that it can be immersed, and the voltage is set in accordance with the rust-preventing power-improving electrodeposition paint (18).
【0012】第1の電着槽(11)、第2の電着槽(1
2)および第3の電着槽(13)の手前には選択コンベ
ヤ(19)が設置されており、この選択コンベヤ(1
9)で図示しない搬送手段にて搬送されてきた車体
(A)を第1の電着槽(11)、車体(B)を第2の電
着槽(12)および車体(C)を第3の電着槽(13)
へ選択的に搬送させる。A first electrodeposition tank (11) and a second electrodeposition tank (1)
A selection conveyor (19) is provided in front of the second and third electrodeposition tanks (13).
9), the vehicle body (A) transported by the transport means (not shown) is the first electrodeposition tank (11), the vehicle body (B) is the second electrodeposition tank (12), and the vehicle body (C) is the third electrodeposition tank. Electroplating tank (13)
To be transported selectively.
【0013】次に、本発明の自動車車体の電着塗装方法
について説明する。Next, the electrodeposition coating method for an automobile body according to the present invention will be described.
【0014】先ず、腐食環境が緩やかな地域向きの3コ
ート車用の車体(A)が搬送されてきた場合、車体
(A)を選択コンベヤ(19)にて第1の電着槽(1
1)へ搬送し、図示しない昇降装置付き搬送手段にて車
体(A)を第1の電着槽(11)の電着塗料(15)中
に浸漬する。そして、車体(A)と電着塗料(15)中
に設けた電極との間に設定電圧を印加して車体(A)に
腐食環境が緩やかな地域向きの3コート車用の電着塗装
を行う。この後、前記電着塗装が施された車体(A)を
前記昇降装置付き搬送手段にて第1の電着槽(11)か
ら取り出し、図示しない搬送手段にて次工程の中塗り塗
装工程へ搬送する。First, when a car body (A) for a three-coat vehicle directed to an area having a moderately corrosive environment is transported, the car body (A) is selected on a first conveyor (19) by a selection conveyor (19).
Then, the vehicle body (A) is immersed in the electrodeposition paint (15) of the first electrodeposition tank (11) by a conveying means with a lifting device (not shown). Then, a set voltage is applied between the vehicle body (A) and the electrodes provided in the electrodeposition paint (15), and the vehicle (A) is subjected to electrodeposition coating for a three-coat vehicle suitable for a region having a moderately corrosive environment. Do. Thereafter, the vehicle body (A) on which the electrodeposition coating has been applied is taken out of the first electrodeposition tank (11) by the transporting means with the elevating device, and is transferred to the next intermediate coating step by the transporting means (not shown). Transport.
【0015】次に、腐食環境が厳しい地域向きの3コー
ト車用の車体(B)が搬送されてきた場合、車体(B)
を選択コンベヤ(19)にて第2の電着槽(12)へ搬
送し、図示しない昇降装置付き搬送手段にて車体(B)
を第2の電着槽(12)の電着塗料(16)中に浸漬す
る。そして、車体(B)と電着塗料(16)中に設けた
電極との間に設定電圧を印加して車体(B)に前段の電
着塗装を行う。次いで、前記前段の電着塗装が施された
車体(B)を前記昇降装置付き搬送手段にて第2の電着
槽(12)から取り出し、第4の電着槽(14)の防錆
力向上電着塗料(18)中に車体(B)の約半分を浸漬
する。そして、車体(B)と防錆力向上電着塗料(1
6)中に設けた電極との間に設定電圧を印加して車体
(B)に後段の防錆力向上電着塗装を行う。この後、前
記後段の防錆力向上電着塗装が施された車体(B)を前
記昇降装置付き搬送手段にて第4の電着槽(14)から
取り出し、図示しない搬送手段にて次工程の中塗り塗装
工程へ搬送する。Next, when a vehicle body (B) for a three-coat vehicle directed to an area having a severe corrosive environment is transported, the vehicle body (B)
Is transported to the second electrodeposition tank (12) by the selection conveyor (19), and the vehicle body (B) is transported by transport means with an elevating device (not shown).
Is immersed in the electrodeposition paint (16) of the second electrodeposition tank (12). Then, a set voltage is applied between the vehicle body (B) and the electrode provided in the electrodeposition paint (16) to perform the preceding electrodeposition coating on the vehicle body (B). Next, the vehicle body (B) on which the preceding electrodeposition coating has been applied is taken out of the second electrodeposition tank (12) by the transporting means with the elevating device, and the rustproofing power of the fourth electrodeposition tank (14) is obtained. About half of the vehicle body (B) is immersed in the improved electrodeposition paint (18). Then, the body (B) and the electrodeposition paint (1
6) A set voltage is applied between the electrode provided therein and electrodeposition coating for improving the rust-preventive force of the latter stage on the vehicle body (B). Thereafter, the vehicle body (B) on which the latter-stage rust-preventive force-improving electrodeposition coating has been applied is taken out of the fourth electrodeposition tank (14) by the transporting means with the elevating device, and the next step is performed by transporting means (not shown). To the intermediate coating process.
【0016】次に、2コート車用の車体(C)が搬送さ
れてきた場合、車体(C)を選択コンベヤ(19)にて
第3の電着槽(13)へ搬送し、図示しない昇降装置付
き搬送手段にて車体(C)を第3の電着槽(13)の電
着塗料(17)中に浸漬する。そして、車体(C)と電
着塗料(17)中に設けた電極との間に設定電圧を印加
して車体(A)に2コート車用の電着塗装を行う。この
後、前記電着塗装が施された車体(C)を前記昇降装置
付き搬送手段にて第3の電着槽(13)から取り出し、
図示しない搬送手段にて次工程の上塗り塗装工程へ搬送
する。Next, when the car body (C) for the two-coat vehicle is conveyed, the car body (C) is conveyed to the third electrodeposition tank (13) by the selection conveyor (19), and is moved up and down (not shown). The vehicle body (C) is immersed in the electrodeposition paint (17) of the third electrodeposition tank (13) by the transport means with the device. Then, a set voltage is applied between the vehicle body (C) and the electrodes provided in the electrodeposition paint (17) to perform the electrodeposition coating for the two-coat vehicle on the vehicle body (A). Thereafter, the body (C) on which the electrodeposition coating has been performed is taken out of the third electrodeposition tank (13) by the transporting means with the elevating device, and
It is conveyed to the next topcoating process by the conveyance means not shown.
【0017】本実施の形態においては、電着塗料および
設定電圧が異なる第1〜第4の電着槽(11)〜(1
4)の電着塗料(14)〜(18)中に腐食条件や上塗
りコート数の異なる車体(A)(B)(C)を選択的に
浸漬して電着塗装を行うから、腐食条件や上塗りコート
数の異なる車体(A)(B)(C)をそれぞれの腐食条
件や上塗りコート数に合わせて電着塗装することが可能
である。In this embodiment, the first to fourth electrodeposition tanks (11) to (1) having different electrodeposition paints and set voltages are used.
Since the body (A), (B) and (C) having different corrosion conditions and the number of top coats are selectively immersed in the electrodeposition paints (14) to (18) of 4), the electrodeposition coating is performed. Vehicle bodies (A), (B), and (C) having different numbers of overcoats can be electrodeposited according to the respective corrosion conditions and the number of overcoats.
【0018】以上は本発明に係る一実施の形態を説明し
たもので、本発明はこの実施の形態に限定されることな
く、本発明の要旨内において設計変更することができる
のは言うまでもない。例えば、4槽の電着槽を設置して
3種類の車体を電着塗装する場合を述べたが、電着槽は
4槽に限定するものではないし、車体も3種類に限定す
るものではない。The above is an explanation of one embodiment according to the present invention. It goes without saying that the present invention is not limited to this embodiment, and that the design can be changed within the gist of the present invention. For example, the case where four types of electrodeposition tanks are installed and three types of vehicle bodies are subjected to electrodeposition coating has been described. However, the number of electrodeposition tanks is not limited to four, and the number of vehicle bodies is not limited to three types. .
【0019】[0019]
【発明の効果】以上説明したように、本発明によれば、
電着塗料および設定電圧が異なる複数の電着槽を設置
し、自動車車体を選択的に電着槽の電着塗料中に浸漬し
て電着塗装するようにしたので、腐食条件や上塗りコー
ト数の異なる自動車車体をそれぞれの腐食条件や上塗り
コート数に合わせて電着塗装することができ、自動車車
体への過剰塗装を防止し得る。As described above, according to the present invention,
A plurality of electrodeposition tanks with different electrodeposition paints and set voltages were installed, and the car body was selectively immersed in the electrodeposition paint in the electrodeposition tank for electrodeposition coating. Can be electrodeposited in accordance with the respective corrosion conditions and the number of overcoats, thereby preventing overpainting of the vehicle body.
【図1】本発明に係る自動車車体の電着塗装方法の実施
の形態で使用される第1〜第4の電着槽の設置関係を示
す概略平面図である。FIG. 1 is a schematic plan view showing an installation relationship of first to fourth electrodeposition tanks used in an embodiment of an electrodeposition coating method for an automobile body according to the present invention.
【図2】本発明の実施の形態で使用される第1の電着槽
の概略図である。FIG. 2 is a schematic diagram of a first electrodeposition tank used in the embodiment of the present invention.
【図3】本発明の実施の形態で使用される第2の電着槽
の概略図である。FIG. 3 is a schematic diagram of a second electrodeposition tank used in the embodiment of the present invention.
【図4】本発明の実施の形態で使用される第3の電着槽
の概略図である。FIG. 4 is a schematic diagram of a third electrodeposition tank used in the embodiment of the present invention.
【図5】本発明の実施の形態で使用される第4の電着槽
の概略図である。FIG. 5 is a schematic view of a fourth electrodeposition tank used in the embodiment of the present invention.
【図6】従来の自動車車体の電着塗装装置の概略構成図
である。FIG. 6 is a schematic configuration diagram of a conventional electrodeposition coating apparatus for an automobile body.
A 腐食条件が緩やかな地域向きの3コート車用の車体 B 腐食条件が厳しい地域向きの3コート車用の車体 C 2コート車用の車体 11 第1の電着槽 12 第2の電着槽 13 第3の電着槽 14 第4の電着槽 15 腐食条件が緩やかな地域向きの3コート車用の電
着塗料 16 腐食条件が厳しい地域向きの3コート車用の電着
塗料 17 2コート車用の電着塗料 18 防錆力向上電着塗料 19 選択コンベヤA vehicle body for a three-coat vehicle suitable for areas with moderate corrosion conditions B body for a three-coat vehicle suitable for areas with severe corrosion conditions C vehicle body for a two-coat vehicle 11 first electrodeposition tank 12 second electrodeposition tank Reference Signs List 13 Third electrodeposition tank 14 Fourth electrodeposition tank 15 Electrodeposition paint for 3 coat car for areas where corrosion conditions are moderate 16 Electrodeposition paint for 3 coat car for areas where corrosion conditions are severe 17 2 coats Electrodeposition paints for cars 18 Electrodeposition paints to improve rust prevention 19 Selection conveyor
Claims (2)
電着槽を設置し、自動車車体を選択的に前記電着槽の電
着塗料中に浸漬して電着塗装することを特徴とする自動
車車体の電着塗装方法。1. An electrodeposition paint and a plurality of electrodeposition tanks having different set voltages are installed, and an automobile body is selectively immersed in the electrodeposition paint of the electrodeposition tank to perform electrodeposition coating. The method of electrodeposition coating of automobile bodies.
着塗料中に浸漬して電着塗装することを特徴とする請求
項1記載の自動車車体の電着塗装方法。2. The method according to claim 1, wherein the vehicle body is immersed in the electrodeposition paint of two or more of the electrodeposition tanks to perform electrodeposition coating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11209228A JP2001032096A (en) | 1999-07-23 | 1999-07-23 | Electrodeposition coating method for automotive body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11209228A JP2001032096A (en) | 1999-07-23 | 1999-07-23 | Electrodeposition coating method for automotive body |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001032096A true JP2001032096A (en) | 2001-02-06 |
Family
ID=16569483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11209228A Withdrawn JP2001032096A (en) | 1999-07-23 | 1999-07-23 | Electrodeposition coating method for automotive body |
Country Status (1)
Country | Link |
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JP (1) | JP2001032096A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1617292A2 (en) | 2004-07-14 | 2006-01-18 | Canon Kabushiki Kaisha | Light source unit and exposure apparatus having the same |
-
1999
- 1999-07-23 JP JP11209228A patent/JP2001032096A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1617292A2 (en) | 2004-07-14 | 2006-01-18 | Canon Kabushiki Kaisha | Light source unit and exposure apparatus having the same |
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A300 | Withdrawal of application because of no request for examination |
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