CN105080808A - Coating method for polyurethane paint - Google Patents
Coating method for polyurethane paint Download PDFInfo
- Publication number
- CN105080808A CN105080808A CN201510380151.9A CN201510380151A CN105080808A CN 105080808 A CN105080808 A CN 105080808A CN 201510380151 A CN201510380151 A CN 201510380151A CN 105080808 A CN105080808 A CN 105080808A
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- spray
- baking oven
- paint
- sprayed
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Abstract
The invention discloses a coating method for polyurethane paint. The coating method includes the following steps: (1) the surfaces of parts to be coated with the polyurethane paint are cleaned; (2) the treatment conditions of the surfaces of the coated parts are checked; (3) priming paint is sprayed to the to-be-sprayed parts with the surfaces treated to be qualified, the parts are placed for one hour at the room temperature after the priming paint is sprayed, and then the parts are placed in a drying oven for curing, wherein the thickness of a spraying coating ranges from 20 micrometers to 25 micrometers; (4) finish paint is sprayed to the parts obtained after the priming paint is sprayed, the parts are placed for 30 minutes at the room temperature after the finish paint is sprayed, and then the parts are placed in the drying oven for curing, wherein the thickness of a spraying coating ranges from 40 micrometers to 50micrometers; and (5) the appearance of the paint layer is checked, and the qualified product is baled to be put in storage. By means of the coating method, the surfaces of the parts obtained after the polyurethane paint is sprayed in a brushing manner are flat, the color is consistent, and the aesthetic property is good.
Description
Technical field
The present invention relates to polyurethane paint spraying field, be specifically related to a kind of painting method of polyurethane paint.
Background technology
Polyurethane paint due to its film wearability good, tough and tensile plentiful, bright in color, oil resistant, resistance to benzene kind solvent, water-fast, resistance to boiling water, sea water resistance, acid and alkali resistance, salt corrosion and chemical atmosphere, and there is good outdoor weathe resistance, therefore apply very extensive, but in prior art, the painting method for polyurethane paint is unreasonable, cause the coating out-of-flatness of the part after applying polyurethane paint, aesthetic property is poor, causes unnecessary loss to manufacturer.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of painting method of polyurethane paint, this painting method perfect technology, the piece surface of brushing after polyurethane paint is smooth, and tone is consistent, and aesthetic property is good.
Object of the present invention carrys out specific implementation by the following technical programs:
A painting method for polyurethane paint, comprises the following steps:
1) piece surface treating spraying polyurethane paint cleans, and carries out vapour degreasing or manual oil removing, ensures that piece surface to be sprayed is anhydrous, greasy dirt and dust;
2) the surface treatment situation of spraying part is tested, with pure water or distilled water mist spray cleaning components, check that moisture film should not break, moisture film is separated into water droplet or has any sign that breaks, show that oil removing is insufficient, continue oil removing, until obtain the moisture film do not broken continuously;
3) part to be sprayed that effects on surface process is qualified carries out spray-applied primer, the thickness of spray-on coating is 20 ~ 25 μm, at room temperature places 1 hour after spray-applied primer, is then placed in baking oven and is cured, temperature stabilization in baking oven, at 60 DEG C, places at least 50 minutes in baking oven;
4) spray paint is carried out to the part after spray-applied primer, the thickness of spray-on coating is 40 ~ 50 μm, after at room temperature placing 30 minutes, is then placed in baking oven and is cured after spray paint, temperature stabilization in baking oven, at 75 DEG C, places at least 50 minutes in baking oven; At least one hour is placed in baking oven;
5) check enamelled coating outward appearance, qualified products wrap into storehouse greatly.
The painting method of a kind of polyurethane paint of the present invention, comprises the following steps: the piece surface 1) treating spraying polyurethane paint cleans; 2) the surface treatment situation of spraying part is tested; 3) part to be sprayed that effects on surface process is qualified carries out spray-applied primer, and the thickness of spray-on coating is 20 ~ 25 μm, at room temperature places 1 hour after spray-applied primer, is then placed in baking oven and is cured; 4) carry out spray paint to the part after spray-applied primer, the thickness of spray-on coating is 40 ~ 50 μm, after at room temperature placing 30 minutes, is then placed in baking oven and is cured after spray paint; 5) check enamelled coating outward appearance, qualified products wrap into storehouse greatly.Adopt the piece surface after above-mentioned painting method brushing polyurethane paint smooth, tone is consistent, and aesthetic property is good.
Detailed description of the invention
The painting method of a kind of polyurethane paint described in the embodiment of the present invention, comprises the following steps:
1) piece surface treating spraying polyurethane paint cleans, and carries out vapour degreasing or manual oil removing, ensures that piece surface to be sprayed is anhydrous, greasy dirt and dust;
2) the surface treatment situation of spraying part is tested, with pure water or distilled water mist spray cleaning components, check that moisture film should not break, moisture film is separated into water droplet or has any sign that breaks, show that oil removing is insufficient, continue oil removing, until obtain the moisture film do not broken continuously;
3) part to be sprayed that effects on surface process is qualified carries out spray-applied primer, the thickness of spray-on coating is 20 ~ 25 μm, at room temperature places 1 hour after spray-applied primer, is then placed in baking oven and is cured, temperature stabilization in baking oven, at 60 DEG C, places at least 50 minutes in baking oven;
4) spray paint is carried out to the part after spray-applied primer, the thickness of spray-on coating is 40 ~ 50 μm, after at room temperature placing 30 minutes, is then placed in baking oven and is cured after spray paint, temperature stabilization in baking oven, at 75 DEG C, places at least 50 minutes in baking oven; At least one hour is placed in baking oven;
5) check enamelled coating outward appearance, qualified products wrap into storehouse greatly.
Adopt the piece surface after painting method of the present invention brushing polyurethane paint smooth, tone is consistent, and aesthetic property is good.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; it still can regulate the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a painting method for polyurethane paint, is characterized in that comprising the following steps:
1) piece surface treating spraying polyurethane paint cleans, and carries out vapour degreasing or manual oil removing, ensures that piece surface to be sprayed is anhydrous, greasy dirt and dust;
2) the surface treatment situation of spraying part is tested, with pure water or distilled water mist spray cleaning components, check that moisture film should not break, moisture film is separated into water droplet or has any sign that breaks, show that oil removing is insufficient, continue oil removing, until obtain the moisture film do not broken continuously;
3) part to be sprayed that effects on surface process is qualified carries out spray-applied primer, the thickness of spray-on coating is 20 ~ 25 μm, at room temperature places 1 hour after spray-applied primer, is then placed in baking oven and is cured, temperature stabilization in baking oven, at 60 DEG C, places at least 50 minutes in baking oven;
4) spray paint is carried out to the part after spray-applied primer, the thickness of spray-on coating is 40 ~ 50 μm, after at room temperature placing 30 minutes, is then placed in baking oven and is cured after spray paint, temperature stabilization in baking oven, at 75 DEG C, places at least 50 minutes in baking oven; At least one hour is placed in baking oven;
5) check enamelled coating outward appearance, qualified products wrap into storehouse greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380151.9A CN105080808A (en) | 2015-07-02 | 2015-07-02 | Coating method for polyurethane paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380151.9A CN105080808A (en) | 2015-07-02 | 2015-07-02 | Coating method for polyurethane paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105080808A true CN105080808A (en) | 2015-11-25 |
Family
ID=54562665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380151.9A Pending CN105080808A (en) | 2015-07-02 | 2015-07-02 | Coating method for polyurethane paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105080808A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0674951A1 (en) * | 1992-10-07 | 1995-10-04 | Ateliers Reunis Caddie | Process for coating metallic workpieces or structure with a thermosetting powder and metallic product thus obtained |
| CN104324869A (en) * | 2014-10-23 | 2015-02-04 | 柳州金茂机械有限公司 | Paint spraying process of intermediate toothed plate |
-
2015
- 2015-07-02 CN CN201510380151.9A patent/CN105080808A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0674951A1 (en) * | 1992-10-07 | 1995-10-04 | Ateliers Reunis Caddie | Process for coating metallic workpieces or structure with a thermosetting powder and metallic product thus obtained |
| CN104324869A (en) * | 2014-10-23 | 2015-02-04 | 柳州金茂机械有限公司 | Paint spraying process of intermediate toothed plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |