CN204472710U - A kind of coating structure of automobile metal exterior trimming parts - Google Patents
A kind of coating structure of automobile metal exterior trimming parts Download PDFInfo
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- CN204472710U CN204472710U CN201520080765.0U CN201520080765U CN204472710U CN 204472710 U CN204472710 U CN 204472710U CN 201520080765 U CN201520080765 U CN 201520080765U CN 204472710 U CN204472710 U CN 204472710U
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Abstract
The utility model discloses a kind of coating structure of automobile metal exterior trimming parts, be made up of metal base, electrophoretic paint layer, background color enamelled coating and clearcoat layer; Background color enamelled coating comprises first water-based short processes basecoat layer and second water-based short processes basecoat layer; Wherein electrophoretic paint layer covers the surface of metal base, first water-based short processes basecoat layer covers and fixes over the electrophoretic layer, second water-based short processes basecoat layer covers and is fixed on first water-based short processes basecoat layer, and clearcoat layer covers and is fixed on second water-based short processes basecoat layer.The coating structure of automobile metal exterior trimming parts of the present utility model eliminates floating coat on the one hand, and each coating is aqueous coating on the other hand, reduces painting cost, environmentally friendly, reaches the object of energy-saving and emission-reduction.
Description
Technical field
The utility model relates to the coating structure of automobile exterior trimming parts, is specifically related to a kind of coating structure of automobile metal exterior trimming parts.
Background technology
The finish coat of traditional vehicle external metal decoration part is four layers of coating, is from inside to outside followed successively by electrophoresis layer, prime coat, floating coating layer and top coat layer.Top coat layer has two kinds of forms, a kind of form is the top coat layer (as colored polyurethane enamelled coating) of individual layer, another kind of form is double-deck top coat layer, by being positioned at the base color paint layer (also claiming background color enamelled coating) of internal layer and being positioned at outer field Lacquer finish enamelled coating (also title clearcoat layer or clear coat finish) and forming.
Along with the research and development of exempting from middle linging colored paint, the finish coat of Vehicular metal exterior trimming parts eliminates floating coat, is from inside to outside followed successively by electrophoresis layer, prime coat and top coat layer.
Further along with the raising day by day of environmental demands and the call in order to respond energy-saving and emission-reduction, present painting dressing automobiles uses water paint to substitute original solvent based coating, water paint using water as medium, after being sprayed on surface of the work, volatile matter major part is water, environmentally friendly.When using water paint, it is technical problem to be solved in the utility model that coating structure can reach solvent-based coating structural behaviour index.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of coating structure of the automobile metal exterior trimming parts using water paint to obtain.
The technical scheme realizing the utility model object is a kind of coating structure of automobile metal exterior trimming parts, is made up of metal base, electrophoretic paint layer, background color enamelled coating and clearcoat layer; Background color enamelled coating comprises first water-based short processes basecoat layer and second water-based short processes basecoat layer; Wherein electrophoretic paint layer covers the surface of metal base, first water-based short processes basecoat layer covers and fixes over the electrophoretic layer, second water-based short processes basecoat layer covers and is fixed on first water-based short processes basecoat layer, and clearcoat layer covers and is fixed on second water-based short processes basecoat layer.
The thickness of electrophoretic paint layer is 10 μm ~ 30 μm; The film thickness of the first water-based short processes basecoat layer of background color enamelled coating is 5 μm ~ 35 μm; The film thickness of the second water-based short processes basecoat layer of background color enamelled coating is 5 μm ~ 25 μm; The film thickness of clearcoat layer is 25 μm ~ 60 μm.
Optionally, the first water-based short processes basecoat layer of background color enamelled coating is equal with the film thickness of second water-based short processes basecoat layer.
The utility model has positive effect: the coating structure of automobile metal exterior trimming parts of the present utility model eliminates floating coat on the one hand, and each coating is aqueous coating on the other hand, reduces painting cost, environmentally friendly, reaches the object of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Mark in above-mentioned accompanying drawing is as follows:
Metal base 1, electrophoretic paint layer 2, background color enamelled coating 3, first water-based short processes basecoat layer 31, second water-based short processes basecoat layer 32, clearcoat layer 4.
Detailed description of the invention
(embodiment 1)
See Fig. 1, the coating structure of the automobile metal exterior trimming parts of the present embodiment is made up of metal base 1, electrophoretic paint layer 2, background color enamelled coating 3 and clearcoat layer 4; Background color enamelled coating 3 comprises first water-based short processes basecoat layer 31 and second water-based short processes basecoat layer 32.Wherein electrophoretic paint layer 2 covers the surface of metal base 1, first water-based short processes basecoat layer 31 covers and is fixed in electrophoresis layer 2, second water-based short processes basecoat layer 32 covers and is fixed on first water-based short processes basecoat layer 31, and clearcoat layer 4 covers and is fixed on second water-based short processes basecoat layer 32.
The thickness of electrophoretic paint layer 2 is 10 μm ~ 30 μm, is 20 μm in the present embodiment.
The film thickness of the first water-based short processes basecoat layer 31 of background color enamelled coating 3 is 5 μm ~ 35 μm, in the present embodiment be 15 μm, flat smooth, it is the first water-based short processes basecoat of WBX-01A that first water-based short processes basecoat used derives from the commercial disignation that Changzhou Wujin Chenguang Metallic Paint Co., Ltd. produces, and comprises paint component and curing agent.
The film thickness of the second water-based short processes basecoat layer 32 of background color enamelled coating 3 is 5 μm ~ 25 μm, in the present embodiment be 15 μm, flat smooth, it is the second water-based short processes basecoat of WBX-01B that second water-based short processes basecoat used derives from the commercial disignation that Changzhou Wujin Chenguang Metallic Paint Co., Ltd. produces.
The film thickness of clearcoat layer 4 is 25 μm ~ 60 μm, is 30 μm in the present embodiment, the finish varnish used acroleic acid polyurethane finish varnish for market is sold.
The material of the metal base 1 of the present embodiment is steel plate, and the job operation of the coating structure of automobile metal exterior trimming parts has following steps:
1. paint front surface process, ungrease treatment is carried out to the surface of metal base 1, reach the state that moisture film is continuous and turn linked to, then phosphorating treatment is carried out to metal piece surface, control slit liquid temp 35 DEG C, spray 2 minutes.
2. ability cathode electrophoresis, the workpiece after surface preparation dodges dry in 2 minutes at 160 DEG C, then carries out electrophoretic painting, and control tank liquor temperature 28 DEG C when carrying out ability cathode electrophoresis, 2 minutes time, voltage 220V, electrophoretic painting terminates rear metal piece surface coverage electrophoretic paint layer 2.
3. first water-based short processes basecoat is sprayed; The paint component of first water-based short processes basecoat mixed with curing agent, be then sprayed on electrophoretic paint layer, levelling, after 2 ~ 3 minutes, obtains the first water-based short processes basecoat layer 31 of 5 μm ~ 25 μm of thickness; First water-based short processes basecoat layer sprays second water-based short processes basecoat, and levelling, after 2 ~ 3 minutes, obtains the second water-based short processes basecoat layer 32 of 5 μm ~ 25 μm of thickness; Predrainage at 80 DEG C, until the moisture taking off in first and second water-based short processes basecoat more than 85%.
During spraying first water-based short processes basecoat, every square meter solvent flashing 1 ~ 10g/m
2.
During spraying second water-based short processes basecoat, every square meter solvent flashing 1 ~ 10 g/m
2.
4. spray finish varnish, be sprayed on by finish varnish on second water-based short processes basecoat layer, levelling, after 8 to 10 minutes, obtains clearcoat layer 4.The application of automotive metal piece has been dried at 80 DEG C ~ 140 DEG C.The finish varnish used acroleic acid polyurethane finish varnish for market is sold.The thickness of clearcoat layer is 25 μm ~ 50 μm.
Metal base 1 described in the present embodiment comprises the punching press wheel of the car bonnet of bodywork system parts, Roof of vehicle, car door fender guard, luggage-boot lid and other system units, seat, bumper/spoiler, floor compartment and ornamental trimming etc.
Claims (3)
1. a coating structure for automobile metal exterior trimming parts, is characterized in that: be made up of metal base (1), electrophoretic paint layer (2), background color enamelled coating (3) and clearcoat layer (4); Background color enamelled coating (3) comprises first water-based short processes basecoat layer (31) and second water-based short processes basecoat layer (32); Wherein electrophoretic paint layer (2) covers the surface of metal base (1), first water-based short processes basecoat layer (31) covers and is fixed in electrophoresis layer (2), second water-based short processes basecoat layer (32) covers and is fixed in first water-based short processes basecoat layer (31), and clearcoat layer (4) covers and is fixed in second water-based short processes basecoat layer (32).
2. the coating structure of automobile metal exterior trimming parts according to claim 1, is characterized in that: the thickness of electrophoretic paint layer (2) is 10 μm ~ 30 μm; The film thickness of first water-based short processes basecoat layer (31) of background color enamelled coating (3) is 5 μm ~ 35 μm; The film thickness of second water-based short processes basecoat layer (32) of background color enamelled coating (3) is 5 μm ~ 25 μm; The film thickness of clearcoat layer (4) is 25 μm ~ 60 μm.
3. the coating structure of automobile metal exterior trimming parts according to claim 2, is characterized in that: first water-based short processes basecoat layer (31) of background color enamelled coating (3) is equal with the film thickness of second water-based short processes basecoat layer (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080765.0U CN204472710U (en) | 2015-02-04 | 2015-02-04 | A kind of coating structure of automobile metal exterior trimming parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520080765.0U CN204472710U (en) | 2015-02-04 | 2015-02-04 | A kind of coating structure of automobile metal exterior trimming parts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922805A (en) * | 2016-05-05 | 2016-09-07 | 深圳市盛世华腾精密五金制品有限公司 | Metal color spray printing method and spray printing component |
| CN107201112A (en) * | 2017-05-09 | 2017-09-26 | 中国第汽车股份有限公司 | Body of a motor car composite coating and its coating process |
| CN116239927A (en) * | 2023-01-10 | 2023-06-09 | 东风汽车集团股份有限公司 | Car body coating structure with ceramic effect and preparation method thereof |
-
2015
- 2015-02-04 CN CN201520080765.0U patent/CN204472710U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922805A (en) * | 2016-05-05 | 2016-09-07 | 深圳市盛世华腾精密五金制品有限公司 | Metal color spray printing method and spray printing component |
| CN107201112A (en) * | 2017-05-09 | 2017-09-26 | 中国第汽车股份有限公司 | Body of a motor car composite coating and its coating process |
| CN116239927A (en) * | 2023-01-10 | 2023-06-09 | 东风汽车集团股份有限公司 | Car body coating structure with ceramic effect and preparation method thereof |
| CN116239927B (en) * | 2023-01-10 | 2024-03-12 | 东风汽车集团股份有限公司 | Car body coating structure with ceramic effect and preparation method thereof |
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