CN104841622A - Coating method of automotive chromatographical wheel - Google Patents
Coating method of automotive chromatographical wheel Download PDFInfo
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- CN104841622A CN104841622A CN201510231251.5A CN201510231251A CN104841622A CN 104841622 A CN104841622 A CN 104841622A CN 201510231251 A CN201510231251 A CN 201510231251A CN 104841622 A CN104841622 A CN 104841622A
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Abstract
The invention discloses a coating method of an automotive chromatographical wheel. The coating method comprises the steps: (1) spraying powder to hubs; (2) carrying out the fist drying after a base coat is coated; (3) coating special colored paint of which the color is different from that of the base coat, covering the base cot, and then carrying out the secondary drying; (4) coating the special colored paint to a ground part; (5) coating transparent paint after preprocessing, and finally carrying out the third drying. The bi-color effect can be displayed, and a bi-color coating is good in weather fastness; furthermore, a thin coating can be manually ground to be applicable to small batch production, and can be ground by a machine tool to be applicable to the mass production.
Description
Technical field
The present invention relates to a kind of coating process of vehicle chromatography wheel, belong to spraying technology field.
Background technology
At present wheel moulding on the market completes by when casting or forging, and after machined, application has been sprayed paint incrustation.Along with change and the individual demand of people's aesthetic conceptions, wheel moulding gets more and more, and also more and more higher to the requirement of wheel surface decoration, two-color coating has appearred in a lot of wheel hub.It is direct three engineering truck faces after colored paint is dried that current two-color coating mainly contains two kinds: one, then sprays varnish or colored varnish, is formed double-colored; Two is that after car three engineering, row ability cathode electrophoresis colored paint sprays varnish protection again after drying.These two kinds of methods have shortcoming, and the first is except common three engineerings, and the color in car face all adopts transparency dye to represent, and dyestuff is not weather-proof, can fade; Although the second ability cathode electrophoresis weatherability is better than dyestuff, but still less than paint, and chromatography is all small lot, and electrophoretic paint can only adapt to mass production, and colour changing cost is high, and cost own is also high.
Summary of the invention
In order to overcome, the chromatography wheel weatherability that oneself has is poor, the deficiency of high expensive, the invention provides a kind ofly can reduce wheel cost, possess good outward appearance, provide weather-proof decorative effect and can meet the coating process of low-volume vehicle chromatography wheel.
For achieving the above object, the technical solution used in the present invention is:
A coating process for vehicle chromatography wheel, comprises the following steps:
(1) spraying powder on wheel hub;
(2) linging colored paint laggard row first time is dry;
(3) be coated with the special colored paint different from base coat color, cover base coat, then second time is dry;
(4) special colored paint is coated with after polishing off part;
(5) transparent painting again after pre-treatment, it is dry finally to carry out third time.
Also need to carry out normal pre-treatment before spraying powder on wheel hub in step (1), comprise the step such as the hot water wash of carrying out successively, pre-oil removing, oil removing, washing, table tune, washing, passivation, dust described in this step and refer to dusty spray class coating.In step (5), indication pre-treatment and the middle pre-treatment of step (1) are same treatment step.
Preferably, described base coat pigment is higher than described paint special pigment, and the thickness of described base coat is greater than the thickness of described paint special.The coating difficulty mill utilizing pigment low, the principle that the coating that pigment is high is easily ground, adopts the thick spray of colored paint that pigment is low; the method of the thin spray of the colored paint that pigment is high; grind off shallow layer with scouring pad, then protect shallow layer after spraying colored varnish oven dry, finally present two-color effect.
Further preferably, described base coat thickness is more than 10 μm, and described special color paint film thickness is 0.01-30 μm.Again further preferably, described base coat pigment is more than 1:1, and described special colored paint pigment is 1:0.01-5.
Preferably, described base coat, paint special and the colored varnish are weather-resisant paint.Wherein, base coat can be oil paint also can be water paint, further, and excellent one or more in acrylic-amino system, Amino-Polyester system or occlusive polyurethane system of base coat.The color of described paint special is final window color, can be plain color or metallochrome, and plain color is as black, white, red etc., and metallochrome is as silver color etc., as long as different with described base coat color, obviously then effect is better for two kinds of color contrast.
The colored varnish in step (5) is the colored varnish that this area is commonly used, and can be Gao Guang, also can be dumb light; Both can be colourless, also can be weather-resisting transparent look.
Preferably, polishing described in step (4) is manual grinding or lathe polishing.
Preferably, described first time is dry, second time is dry and the dry method for drying or dry is dry for the third time.
Compared with prior art, the beneficial effect that reaches of the present invention:
(1) two-color effect can be presented, and double-color coating good weatherability;
(2) both can grind by hand to adapt to small lot batch manufacture when grinding off shallow layer, can adapt to produce in enormous quantities by lathe mill again;
(3) without the need to procuring equipment new as electrophoresis, take full advantage of existing device, new technique and workman need not be increased;
(4) cost is lower than electrophoresis.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1
The implementation step of front black, window silver color wheel hub
1, look for a can the wheel hub of car three engineering, normal pre-treatment, the black powder of spray epoxy polyester, dries.
2, the high light black paint of normal spray is as base coat, and black paint pigment is 1:10, and build, at 20-30 micron, is dried.
3, spray pigment be the silver paint of l:1.5 as paint special, cover the base coat of black completely, build is 3 microns, dries.
4, on Pneumatic grinding machine, be stained with scouring pad, by hand the silver color in front ground off, expose black.
5, spray high light varnish after pre-treatment again, dry.
Embodiment 2
The implementation step that front is black, window color is white wheel hub:
1. get a wheel hub to be processed, after pre-treatment is commonly used in this areas such as hot water wash, pre-oil removing, oil removing, washing, table tune, washing, passivation, cross after spraying powder-type coating, dry;
2. spray the weather-proof paint of black as base coat, this base coat pigment is 1:1, thickness 40-50 micron, dries;
3. spray pigment be the white weather-resisant paint of 1:0.02 as paint special, cover black base coat, thickness is 25 microns;
4. on Pneumatic grinding machine, be stained with scouring pad, by hand as required, the white paint of partial elevational ground off, exposes black;
5. spray high light weather-resisting transparent paint after pre-treatment again, dry.
Base coat used is Amino-Polyester system class coating above.
Embodiment 3
The implementation step that front is white, window color is red wheel hub:
1. get a wheel hub to be processed, after pre-treatment is commonly used in this areas such as hot water wash, pre-oil removing, oil removing, washing, table tune, washing, passivation, cross after spraying powder-type coating, dry;
2. spray white weather-proof paint as base coat, this base coat pigment is 1:20, thickness 10-15 micron, dries;
3. spray pigment be the red weather-resisant paint of 1:5 as paint special, cover white-based color paint, thickness is 0.05 micron;
4. on lathe cutter head, bind scouring pad, then with three engineerings are the same processes, and grind off the paint special needing to grind off, i.e. red paint, exposes white-based color paint;
5. spray dumb light weather-resisting transparent paint after pre-treatment again, dry.
Base coat used is acrylic-amino system class coating above.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (8)
1. a vehicle coating process for chromatography wheel, is characterized in that, comprise the following steps:
(1) spraying powder on wheel hub;
(2) linging colored paint laggard row first time is dry;
(3) be coated with the special colored paint different from base coat color, cover base coat, then second time is dry;
(4) special colored paint is coated with after polishing off part;
(5) transparent painting again after pre-treatment, it is dry finally to carry out third time.
2. the coating process of a kind of vehicle chromatography wheel according to claim 1, is characterized in that, described base coat pigment is higher than described paint special pigment, and the thickness of described base coat is greater than the thickness of described paint special.
3. the coating process of a kind of vehicle chromatography wheel according to claim 1, it is characterized in that, described base coat thickness is more than 10 μm, and described special color paint film thickness is 0.01-30 μm.
4. the coating process of a kind of vehicle chromatography wheel according to claim 1 or 3, it is characterized in that, described base coat pigment is more than 1:1, and described special colored paint pigment is 1:0.01-5.
5. the coating process of a kind of vehicle chromatography wheel according to claim 4, it is characterized in that, described base coat, paint special and the colored varnish are weather-resisant paint.
6. the coating process of a kind of vehicle chromatography wheel according to claim 5, it is characterized in that, described base coat is oiliness or water paint.
7. the coating process of a kind of vehicle chromatography wheel according to claim 1, is characterized in that, polishing described in step (4) is manual grinding or lathe polishing.
8. the coating process of a kind of vehicle chromatography wheel according to claim 1, is characterized in that, described first time is dry, second time is dry and the dry method for drying or dry is dry for the third time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231251.5A CN104841622A (en) | 2015-05-08 | 2015-05-08 | Coating method of automotive chromatographical wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231251.5A CN104841622A (en) | 2015-05-08 | 2015-05-08 | Coating method of automotive chromatographical wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841622A true CN104841622A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510231251.5A Pending CN104841622A (en) | 2015-05-08 | 2015-05-08 | Coating method of automotive chromatographical wheel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214915A (en) * | 2015-08-24 | 2016-01-06 | 上海斯典化工有限公司 | A kind of wheel for vehicle coating process of environmental protection |
| CN111644359A (en) * | 2019-11-04 | 2020-09-11 | 摩登汽车有限公司 | Hub color register method and hub manufacturing method |
| CN112025210A (en) * | 2019-07-11 | 2020-12-04 | 健信科技工業股份有限公司 | Method for processing wheel rim surface by laser engraving |
| CN114713478A (en) * | 2022-04-24 | 2022-07-08 | 保定市立中车轮制造有限公司 | Water-based coating process for high-brightness silver wheel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909050A (en) * | 2014-04-10 | 2014-07-09 | 中信戴卡股份有限公司 | Improved wheel spraying technology |
-
2015
- 2015-05-08 CN CN201510231251.5A patent/CN104841622A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909050A (en) * | 2014-04-10 | 2014-07-09 | 中信戴卡股份有限公司 | Improved wheel spraying technology |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214915A (en) * | 2015-08-24 | 2016-01-06 | 上海斯典化工有限公司 | A kind of wheel for vehicle coating process of environmental protection |
| CN112025210A (en) * | 2019-07-11 | 2020-12-04 | 健信科技工業股份有限公司 | Method for processing wheel rim surface by laser engraving |
| CN111644359A (en) * | 2019-11-04 | 2020-09-11 | 摩登汽车有限公司 | Hub color register method and hub manufacturing method |
| CN114713478A (en) * | 2022-04-24 | 2022-07-08 | 保定市立中车轮制造有限公司 | Water-based coating process for high-brightness silver wheel |
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Application publication date: 20150819 |