CN105289959A - Polypropylene automotive plastic part spraying process - Google Patents
Polypropylene automotive plastic part spraying process Download PDFInfo
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- CN105289959A CN105289959A CN201510692522.7A CN201510692522A CN105289959A CN 105289959 A CN105289959 A CN 105289959A CN 201510692522 A CN201510692522 A CN 201510692522A CN 105289959 A CN105289959 A CN 105289959A
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- repaired
- sprayed
- polishing
- tackifier
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Abstract
The invention provides a polypropylene automotive plastic part spraying process and relates to the technical field of spraying processing. The polypropylene automotive plastic part spraying process comprises the following steps that an area to be repaired is cleaned through white vinegar water and then cleaned up through clear water; polishing is carried out to form a bevel opening, the upper portion of the bevel opening is high, and the lower portion of the bevel opening is low; a polyolefin tackifier is sprayed and dried, the polished area to be repaired is kept as a bevel all the time, drying is carried out, and sanding and side finishing are carried out; the polyolefin tackifier is sprayed to the polished area to be repaired again for filling and leveling, the polished area to be repaired is kept as the bevel, an original paint layer on a plastic part is polished completely, and the gloss of the paint layer is removed; the polyolefin tackifier is sprayed for the third time, medium coating is sprayed after drying, flash drying is carried out, a layer of medium coating is sprayed again and scraped evenly, the polished area to be repaired is kept as the bevel, and the surface is ground flush; and acrylic paint and curing agents are diluted and mixed, and are obliquely sprayed from the upper portion to the lower portion of the spraying bevel opening after being proportionally mixed, and drying is carried out. According to the polypropylene automotive plastic part spraying process, the curing speed is high, the gravity effect is low, and the flatness of the sprayed plane is high.
Description
Technical field
The present invention relates to spray process technical field, be specifically related to a kind of polypropylene automotive working of plastics spraying coating process.
Background technology
Powder and polypropylene is that a kind of difficulty is glued, the difficult material be coated with, and therefore carries out application to polypropylene part, must first use base paint special bottoming, or carry out specially treated to piece surface, then could spray crylic acid colored paint.Modal car external application polypropylene member is bumper.The surface treatment of polypropylene bumper in prior art, crylic acid colored paint curing rate is slow, easy decortication, and vertical polishing district to be repaired, usually when spraying, front spraying is difficult to keep the smooth of outside, and due to paint curing rate slow, the thickness usually causing the paint of bottom is under gravity comparatively large, and the thickness on top is less, thus makes spray-coating surface be difficult to reach vertical smooth.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of spray-coating surface that can keep compared with the polypropylene automotive working of plastics spraying coating process of high-flatness.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of polypropylene automotive working of plastics spraying coating process, is characterized in that: comprise the following steps,
1) region to be repaired is cleaned with light-coloured vinegar water, cleaner by clean water, then use finish paint diluent cleaning components surface;
2) polish region to be repaired, form beveled mouth, the top of described beveled mouth is higher, and bottom is lower;
3) after pasting Covering adhesive tapes, spraying polyolefin tackifier, dry 10 minutes, the thickness rubber flap drawout of tackifier, kept polishing region to be repaired to be inclined-plane always, and dry 30 minutes, limit was received in sand papering;
4) polyolefin tackifier are again sprayed to the repairing area of polishing, BMidcoat is sprayed again to fill and lead up little pit, pin hole and polishing vestige after drying, polishing is to smooth, polishing region to be repaired is kept to be inclined-plane, original-pack enamelled coating on thorough polishing working of plastics, removes the 80%-90% of its gloss;
5) third time sprays tackifier, sprays BMidcoat after drying, dodges dry 10-15 minute, then sprays one deck BMidcoat and drawout, keeps polishing region to be repaired to be inclined-plane, dry 1-2 hour, flattened surface;
6) dilute and mix acrylic paint and curing agent, tilting to spray from the top lower portion of spraying beveled mouth after proportioning mixing, then dry 8 hours.
Described acrylic paint is not containing softening agent.
The mixture of described isocyanates, polyamide and triphenyl phosphate, the ratio of isocyanates, polyamide and triphenyl phosphate is 2:1:0.5.
The present invention is in polishing region to be repaired, form beveled mouth, the top of described beveled mouth is higher, bottom is lower, and tilts to spray from the top lower portion of spraying beveled mouth during spraying, makes paint at thickness upper-thin-lower-thick to be repaired, just fill up the inclined-plane difference thickness of spraying beveled mouth, make the spray-coating surface after spraying have higher flatness, and tilt to carry out that spraying itself is not easy to cause to paint overstocks, spraying evenly.Be employed herein the curing agent of combination in addition, greatly can improve the hardening time of paint, make to paint and to be affected by gravity and the poor problem of the flatness caused is less.
The invention has the beneficial effects as follows: curing rate of the present invention is fast, and be affected by gravity little, the planar smoothness of spraying is higher.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
A kind of polypropylene automotive working of plastics spraying coating process, comprises the following steps,
1) region to be repaired is cleaned with light-coloured vinegar water, cleaner by clean water, then use finish paint diluent cleaning components surface;
2) polish region to be repaired, form beveled mouth, the top of beveled mouth is higher, and bottom is lower;
3) after pasting Covering adhesive tapes, spraying polyolefin tackifier, dry 10 minutes, the thickness rubber flap drawout of tackifier, kept polishing region to be repaired to be inclined-plane always, and dry 30 minutes, limit was received in sand papering;
4) polyolefin tackifier are again sprayed to the repairing area of polishing, BMidcoat is sprayed again to fill and lead up little pit, pin hole and polishing vestige after drying, polishing is to smooth, polishing region to be repaired is kept to be inclined-plane, original-pack enamelled coating on thorough polishing working of plastics, removes the 80%-90% of its gloss;
5) third time sprays tackifier, sprays BMidcoat after drying, dodges dry 10-15 minute, then sprays one deck BMidcoat and drawout, keeps polishing region to be repaired to be inclined-plane, dry 1-2 hour, flattened surface;
6) dilute and mix acrylic paint and curing agent, tilting to spray from the top lower portion of spraying beveled mouth after proportioning mixing, then dry 8 hours.
Acrylic paint is not containing softening agent.
The mixture of isocyanates, polyamide and triphenyl phosphate, the ratio of isocyanates, polyamide and triphenyl phosphate is 2:1:0.5.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a polypropylene automotive working of plastics spraying coating process, is characterized in that: comprise the following steps,
1) region to be repaired is cleaned with light-coloured vinegar water, cleaner by clean water, then use finish paint diluent cleaning components surface;
2) polish region to be repaired, form beveled mouth, the top of described beveled mouth is higher, and bottom is lower;
3) after pasting Covering adhesive tapes, spraying polyolefin tackifier, dry 10 minutes, the thickness rubber flap drawout of tackifier, kept polishing region to be repaired to be inclined-plane always, and dry 30 minutes, limit was received in sand papering;
4) polyolefin tackifier are again sprayed to the repairing area of polishing, BMidcoat is sprayed again to fill and lead up little pit, pin hole and polishing vestige after drying, polishing is to smooth, polishing region to be repaired is kept to be inclined-plane, original-pack enamelled coating on thorough polishing working of plastics, removes the 80%-90% of its gloss;
5) third time sprays tackifier, sprays BMidcoat after drying, dodges dry 10-15 minute, then sprays one deck BMidcoat and drawout, keeps polishing region to be repaired to be inclined-plane, dry 1-2 hour, flattened surface;
6) dilute and mix acrylic paint and curing agent, tilting to spray from the top lower portion of spraying beveled mouth after proportioning mixing, then dry 8 hours.
2. a kind of polypropylene automotive working of plastics spraying coating process according to claim 1, is characterized in that: described acrylic paint is not containing softening agent.
3. a kind of polypropylene automotive working of plastics spraying coating process according to claim 1, is characterized in that: the mixture of described isocyanates, polyamide and triphenyl phosphate, and the ratio of isocyanates, polyamide and triphenyl phosphate is 2:1:0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692522.7A CN105289959A (en) | 2015-10-20 | 2015-10-20 | Polypropylene automotive plastic part spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692522.7A CN105289959A (en) | 2015-10-20 | 2015-10-20 | Polypropylene automotive plastic part spraying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105289959A true CN105289959A (en) | 2016-02-03 |
Family
ID=55188169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692522.7A Pending CN105289959A (en) | 2015-10-20 | 2015-10-20 | Polypropylene automotive plastic part spraying process |
Country Status (1)
| Country | Link |
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| CN (1) | CN105289959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824723A (en) * | 2016-12-23 | 2017-06-13 | 安徽国威电动车制造有限公司 | A kind of outer metallic plate of electric motor car repairs spraying coating process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090061215A1 (en) * | 2004-11-04 | 2009-03-05 | Basf Coatings Ag | Method for producing molded parts, especially for use in automobile manufacture, and corresponding appropriate films comprising a coating |
| CN101412891A (en) * | 2007-10-17 | 2009-04-22 | 汽车便利俱乐部株式会社 | Two-component reactive composition for hardening transparent main agent and method for forming transparent layer by using the same |
| CN102020917A (en) * | 2010-11-18 | 2011-04-20 | 青岛德鑫汽车涂料有限公司 | Water-based two-component acrylic acid polyurethane automobile paint and preparation method thereof |
| CN103480557A (en) * | 2013-10-15 | 2014-01-01 | 北京环球新能科技开发有限公司 | Environment-friendly spraying method for construction |
-
2015
- 2015-10-20 CN CN201510692522.7A patent/CN105289959A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090061215A1 (en) * | 2004-11-04 | 2009-03-05 | Basf Coatings Ag | Method for producing molded parts, especially for use in automobile manufacture, and corresponding appropriate films comprising a coating |
| CN101412891A (en) * | 2007-10-17 | 2009-04-22 | 汽车便利俱乐部株式会社 | Two-component reactive composition for hardening transparent main agent and method for forming transparent layer by using the same |
| CN102020917A (en) * | 2010-11-18 | 2011-04-20 | 青岛德鑫汽车涂料有限公司 | Water-based two-component acrylic acid polyurethane automobile paint and preparation method thereof |
| CN103480557A (en) * | 2013-10-15 | 2014-01-01 | 北京环球新能科技开发有限公司 | Environment-friendly spraying method for construction |
Non-Patent Citations (3)
| Title |
|---|
| 吉国光: "如何提高汽车塑料件涂装质量", 《汽车维修技师》 * |
| 姚明: "汽车塑料件的喷涂方法", 《汽车维修》 * |
| 陈宗蓟等: "油漆师傅", 《汽车与配件》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824723A (en) * | 2016-12-23 | 2017-06-13 | 安徽国威电动车制造有限公司 | A kind of outer metallic plate of electric motor car repairs spraying coating process |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |