CN103752477B - Automobile hub spraying process - Google Patents
Automobile hub spraying process Download PDFInfo
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- CN103752477B CN103752477B CN201310750242.8A CN201310750242A CN103752477B CN 103752477 B CN103752477 B CN 103752477B CN 201310750242 A CN201310750242 A CN 201310750242A CN 103752477 B CN103752477 B CN 103752477B
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- automotive hub
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Abstract
A kind of automobile hub spraying process, comprises the following steps: step 1. is by automotive hub oil removing, rust cleaning; Automotive hub after oil removing, rust cleaning is washed by step 2., and upper phosphatization or passivation epithelium, then dry fixing; Step 3. electrostatic gun is sprayed on the thermosetting powder coating that average grain diameter is 15-25 micron on automotive hub; Automotive hub after spraying is put into bread toaster to step 4. or streamline baker carries out hot setting baking, and temperature is set as 180-200 DEG C, and the time is 25-30 minute; After step 5. has been solidified and has been come out of the stove, the color of inspection automotive hub, metal effect, the adhesive force of film, case hardness, the projects such as scratch resistant.
Description
Technical field
The present invention relates to a kind of automobile hub spraying process, particularly relate to a kind of technique adopting thermosetting powder coating spray car wheel hub.
Background technology
At present, automotive hub generally adopts paint to spray, and goes up metallic paint again, finally go up finishing varnish again, need through three road spraying process after automobile wheel hub surface is clean after needing first under-coating varnish, and spraying coating process requires higher to the spraying technology of spraying workman.The coating thickness of traditional paint is at 30-40 micron, and spraying coating process is comparatively complicated; And the case hardness of traditional paint coating is inadequate, and pliability and scoring resistance can not show a candle to powdery paints excellence.Simultaneously, the harm of solvent based coating to operation spraying workman of traditional paint is larger, irritant gas discharging, contaminated air, actual product utilization rate only has between 50-70%, and the product utilization rate of powdery paints has more than 99%, and all can be reclaimed by recovery system, solvent-free, nonirritant gas, without dust emission in atmosphere, environmental requirement is met.And spraying coating process is simple to operation.
Summary of the invention
In order to solve in prior art, the above-mentioned technical problem that automotive hub adopts traditional paint spraying to exist, the object of this invention is to provide a kind of automobile hub spraying process, this technique employing average grain diameter is the thermosetting powder coating of 15-25 micron, utilizes high-pressure electrostatic spray gun to spray, then makes product have better corrosion resistance through high-temperature baking solidification, and film coated surface is smooth, the features such as hardness is high, scratch resistant, and adhesive force is excellent.
To achieve these goals, present invention employs following technical scheme:
A kind of automobile hub spraying process, comprises the following steps:
Step 1. is by automotive hub oil removing, rust cleaning;
Automotive hub after oil removing, rust cleaning is washed by step 2., and upper phosphatization or passivation epithelium, then dry fixing;
Step 3. electrostatic gun is sprayed on the thermosetting powder coating that average grain diameter is 15-25 micron on automotive hub;
Automotive hub after spraying is put into bread toaster to step 4. or streamline baker carries out hot setting baking, and temperature is set as 180-200 DEG C, and the time is 35-25 minute;
After step 5. has been solidified and has been come out of the stove, the color of inspection automotive hub, metal effect, the adhesive force of film, case hardness, scratch resistant project.
Described thermosetting powder coating comprises following main component:
Mylar: 60-80 ﹪;
Curing agent: 4-6 ﹪;
Levelling agent: 0.8-1.2%;
Wetting agent: 0.8-1.5 ﹪;
Defoamer: 0.8-1.5%;
UV absorbers: 1-6%;
Tetrafluoro wax: 0.8-1.5%;
Titanium dioxide: 2-12%;
Mica powder: 2-8%;
Barium sulfate: 4-11%;
Inorganic pigment: 0.4-2%;
Metallic pigments: 2-8 ﹪.
Further, in step 3, coating thickness is 40-50 micron.
Further, the magnitude of voltage of step 3 mesohigh electrostatic gun is 50-80 kilovolt.
Further, the distance of spray gun and automotive hub 10-15 centimetre is kept to spray in step 3.
Further, described automotive hub is steel wheel hub or aluminium wheels.
Advantageous Effects of the present invention is:
Automobile hub spraying process of the present invention, technique is simple, easy to operate, not high to spraying labor claim; Automotive hub through the spraying of this technique has better corrosion resistance, and scumbling is smooth, and hardness is high, and scratch resistant is good, and pliability is good, and adhesive force is excellent.Especially use the automotive hub of spraying coating process of the present invention, in the process of transporting and assemble, overcome film fall to paint the phenomenon come off, extensively welcome by auto vendor.
Detailed description of the invention
Automobile hub spraying process of the present invention, comprises the following steps:
Step 1. is by automotive hub oil removing, rust cleaning;
Automotive hub after oil removing, rust cleaning is washed by step 2., and upper phosphatization or passivation epithelium, then dry fixing;
Step 3. electrostatic gun is sprayed on the thermosetting powder coating that average grain diameter is 15-25 micron on automotive hub;
Automotive hub after spraying is put into bread toaster to step 4. or streamline baker carries out hot setting baking, and temperature is set as 180-200 DEG C, and the time is 35-25 minute;
After step 5. has been solidified and has been come out of the stove, the color of inspection automotive hub, metal effect, the adhesive force of film, case hardness, scratch resistant project.
In the present embodiment, the thermosetting powder coating adopted comprises following Main Ingredients and Appearance:
Mylar: 60-80 ﹪;
Curing agent: 4-6 ﹪;
Levelling agent: 0.8-1.2%;
Wetting agent: 0.8-1.5 ﹪;
Defoamer: 0.8-1.5%;
UV absorbers: 1-6%;
Tetrafluoro wax: 0.8-1.5%;
Titanium dioxide: 2-12%;
Mica powder: 2-8%;
Barium sulfate: 4-11%;
Inorganic pigment: 0.4-2%;
Metallic pigments: 2-8 ﹪.
Be preferably based on the gross weight of composition, mylar 80 ﹪; Curing agent 4 ﹪; Levelling agent 0.8%; Wetting agent 0.8 ﹪; Defoamer 1%; UV absorbers 1%; Tetrafluoro wax 1%; Titanium dioxide 2%; Mica powder 2%; Barium sulfate 5%; Inorganic pigment 0.4%; Metallic pigments 2 ﹪.
In the present embodiment, in step 3, coating thickness is 40-50 micron.The magnitude of voltage of high-pressure electrostatic spray gun is 50-80 kilovolt.The distance of spray gun and automotive hub 10-15 centimetre is kept to spray during spraying.
Automobile hub spraying process of the present invention is applicable to steel wheel hub or aluminium wheels.
Claims (5)
1. an automobile hub spraying process, is characterized in that comprising the following steps:
Step 1. is by automotive hub oil removing, rust cleaning;
Automotive hub after oil removing, rust cleaning is washed by step 2., and upper phosphatization or passivation epithelium, then dry fixing;
Step 3. electrostatic gun is sprayed on the thermosetting powder coating that average grain diameter is 15-25 micron on automotive hub;
Automotive hub after spraying is put into bread toaster to step 4. or streamline baker carries out hot setting baking, and temperature is set as 180-200 DEG C, and the time is 25-35 minute;
After step 5. has been solidified and has been come out of the stove, the color of inspection automotive hub, metal effect, the adhesive force of film, case hardness, scratch resistant project;
Wherein, described thermosetting powder coating comprises: mylar 80 ﹪; Curing agent 4 ﹪; Levelling agent 0.8%; Wetting agent 0.8 ﹪; Defoamer 1%; UV absorbers 1%; Tetrafluoro wax 1%; Titanium dioxide 2%; Mica powder 2%; Barium sulfate 5%; Inorganic pigment 0.4%; Metallic pigments 2 ﹪.
2. automobile hub spraying process according to claim 1, is characterized in that, in step 3, coating thickness is 40-50 micron.
3. automobile hub spraying process according to claim 1, is characterized in that, the magnitude of voltage of step 3 mesohigh electrostatic gun is 50-80 kilovolt.
4. automobile hub spraying process according to claim 1, is characterized in that, keeps the distance of spray gun and automotive hub 10-15 centimetre to spray in step 3.
5. automobile hub spraying process according to claim 1, is characterized in that, described automotive hub is steel wheel hub or aluminium wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750242.8A CN103752477B (en) | 2013-12-31 | 2013-12-31 | Automobile hub spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750242.8A CN103752477B (en) | 2013-12-31 | 2013-12-31 | Automobile hub spraying process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103752477A CN103752477A (en) | 2014-04-30 |
| CN103752477B true CN103752477B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310750242.8A Active CN103752477B (en) | 2013-12-31 | 2013-12-31 | Automobile hub spraying process |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998808A (en) * | 2015-08-13 | 2015-10-28 | 安徽优合铝业科技有限公司 | Automobile hub spraying process |
| CN106367763A (en) * | 2016-08-28 | 2017-02-01 | 开平市中铝实业有限公司 | Surface treatment process of hub |
| CN106543867A (en) * | 2016-10-18 | 2017-03-29 | 浙江捷宇新材料科技股份有限公司 | A kind of wheel hub special bottom powder powdery paints and preparation method thereof |
| CN106868489A (en) * | 2016-12-31 | 2017-06-20 | 马鞍山市川金属科技有限公司 | A kind of surface treatment method of the automotive hub of anti-depainting |
| CN108103492A (en) * | 2017-12-29 | 2018-06-01 | 重庆全茂合渝科技有限公司 | A kind of clutch of motorcycle gear shift arm Anticorrosion measure |
| CN108421682A (en) * | 2018-03-17 | 2018-08-21 | 俞祖林 | A kind of processing method of automobile wheel hub surface |
| CN108941502A (en) * | 2018-07-21 | 2018-12-07 | 安徽启慧信息科技有限公司 | A kind of automotive high intensity board bottom disk component moulding process |
| CN109054600A (en) * | 2018-08-29 | 2018-12-21 | 重庆七彩虹新材料技术有限公司 | A kind of automobile chassis bottom surface unification powdery paints and its construction technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934265A (en) * | 2010-08-04 | 2011-01-05 | 六和轻合金（昆山）有限公司 | Coating method of aluminum alloy wheel rim |
| CN102059207A (en) * | 2010-12-31 | 2011-05-18 | 天津戴卡轮毂制造有限公司 | Aluminum alloy wheel coating process |
| CN102559028A (en) * | 2012-01-19 | 2012-07-11 | 北京航材百慕新材料技术工程股份有限公司 | Protection finish paint for wind power blade and preparation method of protection finish paint |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157819A (en) * | 2007-11-12 | 2008-04-09 | 徐州正菱涂装有限公司 | Outdoor decorative metal powdery paints |
| JP5630834B2 (en) * | 2011-06-28 | 2014-11-26 | 関西ペイント株式会社 | Paint composition |
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2013
- 2013-12-31 CN CN201310750242.8A patent/CN103752477B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934265A (en) * | 2010-08-04 | 2011-01-05 | 六和轻合金（昆山）有限公司 | Coating method of aluminum alloy wheel rim |
| CN102059207A (en) * | 2010-12-31 | 2011-05-18 | 天津戴卡轮毂制造有限公司 | Aluminum alloy wheel coating process |
| CN102559028A (en) * | 2012-01-19 | 2012-07-11 | 北京航材百慕新材料技术工程股份有限公司 | Protection finish paint for wind power blade and preparation method of protection finish paint |
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| CN103752477A (en) | 2014-04-30 |
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