CN104338669B - One is rapidly and efficiently painted large area and is sprayed bad treatment process - Google Patents
One is rapidly and efficiently painted large area and is sprayed bad treatment process Download PDFInfo
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- CN104338669B CN104338669B CN201310703940.2A CN201310703940A CN104338669B CN 104338669 B CN104338669 B CN 104338669B CN 201310703940 A CN201310703940 A CN 201310703940A CN 104338669 B CN104338669 B CN 104338669B
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Abstract
The present invention relates to automobile manufacturing field, be specifically related to one and rapidly and efficiently paint large area and spray bad treatment process.This technique adopts liquid nitrogen and paint stripper to combine process, accelerates the processing speed spraying bad part, improves treatment effeciency; Behind process small size position, edge-protected intact, be convenient to strengthen secondary and spray conjugation that is rear and original paint film; Operating procedure is simple, reduces labour intensity; Clear up very clean.
Description
Technical field
The present invention relates to automobile manufacturing field, be specifically related to one and rapidly and efficiently paint large area and spray bad treatment process.
Background technology
Automobile manufacturing process is divided into four large techniques, punching press, be welded, application, general assembly, coating process is that the body in white be welded is carried out electrophoresis, middle painting, finish paint, makes the color " body in white " spraying with surcharge.
Automotive coatings simply can be divided into following coating: electrophoretic coating, middle coating layer, colored paint coating, varnish coat.Wherein the effect of each coating and Problems existing point as follows:
Electrophoresis film: this film has antiseptic power, polishes with regard to needs if this coating result is bad, but leaks iron for large-area polishing, vehicle body will have the risk of getting rusty, on the other hand, steel plate can be caused in bruting process thinning, and body quality is unreliable.
Middle coating layer: play the effect of forming a connecting link, increase the adhewsive action on bottom and upper strata, if because spray robot breaks down occur that large-area spraying is bad, have to pass through after polishing flat and just can carry out spray paint, now can cause in bruting process and also be destroyed by bottom electrophoretic coating, vehicle body also has risk of getting rusty, simultaneously, steel plate can be caused in bruting process thinning, and body quality is unreliable.
Paint and varnish coating is collectively referred to as topcoat: play and present color, makes the effect that color is shinny, if spray bad, still can destroy electrophoresis layer and steel plate, and on this, several situation can occur after large area polishing.
For the paint scar of electrophoresis, middle coating layer, utilize Pneumatic grinding machine to polish to paint scar position, this kind for the treatment of process has following shortcoming:
1, large-area polishing, manual polishing labor intensive is large, and process inconvenience, elapsed time is long.
2, damage can be brought to vehicle body steel plate after polishing, make it thinning, vehicle body may be caused or be polished part scrapping.
3, polish large-area sheet material time, some position is not easy to clean out, and affects follow-up work, and polishing is leaked the position of iron and got rusty easily, and there is risk.
Summary of the invention
The present invention, in order to solve the problem, provide one rapidly and efficiently to paint large area and sprays bad treatment process.
In order to reach foregoing invention object, the present invention by the following technical solutions:
One is rapidly and efficiently painted large area and is sprayed bad treatment process, comprises the following steps successively:
1) the bad parts of spraying are ready to;
2) adopt baffle to cover around spraying bad position, and pending position road is gone out;
3) along the inward flange spraying liquid nitrogen of baffle, in the 3-10s after spraying liquid nitrogen, paint stripper is sprayed;
4) then carry out liquid nitrogen spray treatment in the main part of spraying bad position, and spray paint stripper simultaneously, paint stripper consumption is 0.3-0.5g/cm
2;
5), after placement 3-5 divides, to the main part heating of spraying bad position, heating-up temperature is 50-65 DEG C, keeps 10-20s, paint film and Matrix separation;
6) paint film after separation is removed, spray methyl-silicone oil, and with gauze by matrix wiped clean, treat paint spraying again.
as preferably, described step 2) and obliterating paraffin under baffle, the obliterating amount of paraffin is 0.05-0.1g/cm
2.Spraying paraffin can be protected reservation paint film on the one hand.
as preferably, described baffle is the enclosed construction of central aperture, and is arc inside baffle.Arc can make the paint film edge after removing comparatively mild, is beneficial to the combination spraying paint film with secondary.
as preferably, described baffle adopts flexible PVC plate.
as preferably, described paint stripper is made up of with the weight ratio of 30-35:10-20:3-5:1-5:4-7:5-9:11-15 chloroform, bromoethane, melamine, NPE, octyl phenol, laruyl alcohol and chitin.During preparation, as long as each component stirred 50-55 DEG C of sealing, and then keep 3-4h at being heated to 60-65 DEG C.
Due to wherein not containing benzene, formaldehyde and all kinds of harmful heavy metal, therefore can not damage the health of operating personnel, and environmental pollution is little.In addition, compared with traditional oiliness paint stripper, the depainting time of this paint stripper is short, and price is low, so significantly can reduce production cost.In addition, its preparation method is simple and convenient.
Compared with prior art, beneficial effect is in the present invention:
1 accelerates the processing speed spraying bad part, improves treatment effeciency,
Behind 2 process small size positions, edge-protected intact, be convenient to strengthen secondary and spray conjugation that is rear and original paint film,
3 operating procedures are simple, reduce labour intensity,
4 cleanings are very clean.
Detailed description of the invention
Below by specific embodiment, explanation is further described to technical scheme of the present invention.
If without specified otherwise, the raw material adopted in embodiments of the invention is the conventional raw material in this area, and the method adopted in embodiment, is the conventional method of this area.
Embodiment 1:
One is rapidly and efficiently painted large area and is sprayed bad treatment process, comprises the following steps successively:
1) the bad parts of spraying are ready to;
2) adopt baffle to cover around spraying bad position, and pending position road is gone out; Obliterating paraffin under baffle, the obliterating amount of paraffin is 0.05g/cm
2, described baffle is the flexible PVC plate of the enclosed construction of central aperture, and is arc inside baffle,
3) along the inward flange spraying liquid nitrogen of baffle, in the 10s after spraying liquid nitrogen, paint stripper is sprayed;
4) then carry out liquid nitrogen spray treatment in the main part of spraying bad position, and spray paint stripper simultaneously, paint stripper consumption is 0.5g/cm
2;
5), after placement 3-5 divides, to the main part heating of spraying bad position, heating-up temperature is 50 DEG C, keeps 20s, paint film and Matrix separation;
6) paint film after separation is removed, spray methyl-silicone oil, and with gauze by matrix wiped clean, treat paint spraying again.
Paint stripper is made up of with the weight ratio of 30:14:5:1:6:9:11 chloroform, bromoethane, melamine, NPE, octyl phenol, laruyl alcohol and chitin.
Embodiment 2:
One is rapidly and efficiently painted large area and is sprayed bad treatment process, comprises the following steps successively:
1) the bad parts of spraying are ready to;
2) adopt baffle to cover around spraying bad position, and pending position road is gone out; Obliterating paraffin under baffle, the obliterating amount of paraffin is 0.1g/cm
2, described baffle is the flexible PVC plate of the enclosed construction of central aperture, and is arc inside baffle,
3) along the inward flange spraying liquid nitrogen of baffle, in the 3s after spraying liquid nitrogen, paint stripper is sprayed;
4) then carry out liquid nitrogen spray treatment in the main part of spraying bad position, and spray paint stripper simultaneously, paint stripper consumption is 0.3/cm
2;
5), after placement 3-5 divides, to the main part heating of spraying bad position, heating-up temperature is 65 DEG C, keeps 10s, paint film and Matrix separation;
6) paint film after separation is removed, spray methyl-silicone oil, and with gauze by matrix wiped clean, treat paint spraying again.
Paint stripper is made up of with the weight ratio of 33:20:3:3:7:5:14 chloroform, bromoethane, melamine, NPE, octyl phenol, laruyl alcohol and chitin.
Embodiment 3:
One is rapidly and efficiently painted large area and is sprayed bad treatment process, comprises the following steps successively:
1) the bad parts of spraying are ready to;
2) adopt baffle to cover around spraying bad position, and pending position road is gone out; Obliterating paraffin under baffle, the obliterating amount of paraffin is 0.08g/cm
2, described baffle is the flexible PVC plate of the enclosed construction of central aperture, and is arc inside baffle,
3) along the inward flange spraying liquid nitrogen of baffle, in the 7s after spraying liquid nitrogen, paint stripper is sprayed;
4) then carry out liquid nitrogen spray treatment in the main part of spraying bad position, and spray paint stripper simultaneously, paint stripper consumption is 0.4g/cm
2;
5), after placement 3-5 divides, to the main part heating of spraying bad position, heating-up temperature is 50-65 DEG C, keeps 10-20s, paint film and Matrix separation;
6) paint film after separation is removed, spray methyl-silicone oil, and with gauze by matrix wiped clean, treat paint spraying again.
Paint stripper is made up of with the weight ratio of 35:10:4:5:4:6:15 chloroform, bromoethane, melamine, NPE, octyl phenol, laruyl alcohol and chitin.
Claims (4)
1. rapidly and efficiently paint large area and spray a bad treatment process, it is characterized in that, comprise the following steps successively:
1) the bad parts of spraying are ready to;
2) adopt baffle to cover around spraying bad position, and pending position is exposed;
3) along the inward flange spraying liquid nitrogen of baffle, in the 3-10s after spraying liquid nitrogen, paint stripper is sprayed;
4) then carry out liquid nitrogen spray treatment in the main part of spraying bad position, and spray paint stripper simultaneously, paint stripper consumption is 0.3-0.5g/cm
2;
5), after placement 3-5 divides, to the main part heating of spraying bad position, heating-up temperature is 50-65 DEG C, keeps 10-20s, paint film and Matrix separation;
6) paint film after separation is removed, spray methyl-silicone oil, and with gauze by matrix wiped clean, treat paint spraying again;
Described paint stripper is made up of with the weight ratio of 30-35:10-20:3-5:1-5:4-7:5-9:11-15 chloroform, bromoethane, melamine, NPE, octyl phenol, laruyl alcohol and chitin.
2. one according to claim 1 is rapidly and efficiently painted large area and is sprayed bad treatment process, it is characterized in that, described step 2) obliterating paraffin under baffle, the obliterating amount of paraffin is 0.05-0.1g/cm
2.
3. one according to claim 1 is rapidly and efficiently painted large area and is sprayed bad treatment process, it is characterized in that, described baffle is the enclosed construction of central aperture, and is arc inside baffle.
4. one according to claim 1 is rapidly and efficiently painted large area and is sprayed bad treatment process, it is characterized in that, described baffle adopts flexible PVC plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703940.2A CN104338669B (en) | 2013-12-20 | 2013-12-20 | One is rapidly and efficiently painted large area and is sprayed bad treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703940.2A CN104338669B (en) | 2013-12-20 | 2013-12-20 | One is rapidly and efficiently painted large area and is sprayed bad treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104338669A CN104338669A (en) | 2015-02-11 |
| CN104338669B true CN104338669B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703940.2A Expired - Fee Related CN104338669B (en) | 2013-12-20 | 2013-12-20 | One is rapidly and efficiently painted large area and is sprayed bad treatment process |
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| Country | Link |
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| CN (1) | CN104338669B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300281A (en) * | 2017-07-24 | 2017-10-27 | 山东宏达科技集团有限公司 | A kind of pull-away method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0243676A1 (en) * | 1986-04-19 | 1987-11-04 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Process and composition for removing paint from metal parts |
| CN1234301A (en) * | 1999-05-27 | 1999-11-10 | 高德明 | Method for repairing painted surface |
| CN1608744A (en) * | 2004-03-29 | 2005-04-27 | 郭新军 | Method of repairing local damaged coating on metal surface |
| CN101028619A (en) * | 2006-02-27 | 2007-09-05 | 徐州正菱涂装有限公司 | Method for surface holidying or repairing loss-part after coating metal powder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100920756B1 (en) * | 2003-12-31 | 2009-10-09 | 송경흥 | Clean-painting technology for removing a scar on trim of automobile |
-
2013
- 2013-12-20 CN CN201310703940.2A patent/CN104338669B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0243676A1 (en) * | 1986-04-19 | 1987-11-04 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Process and composition for removing paint from metal parts |
| CN1234301A (en) * | 1999-05-27 | 1999-11-10 | 高德明 | Method for repairing painted surface |
| CN1608744A (en) * | 2004-03-29 | 2005-04-27 | 郭新军 | Method of repairing local damaged coating on metal surface |
| CN101028619A (en) * | 2006-02-27 | 2007-09-05 | 徐州正菱涂装有限公司 | Method for surface holidying or repairing loss-part after coating metal powder |
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|---|---|
| CN104338669A (en) | 2015-02-11 |
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Granted publication date: 20160427 Termination date: 20191220 |
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