CN102266843A - High-efficiency automobile topcoat spraying process - Google Patents
High-efficiency automobile topcoat spraying process Download PDFInfo
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- CN102266843A CN102266843A CN201110179341A CN201110179341A CN102266843A CN 102266843 A CN102266843 A CN 102266843A CN 201110179341 A CN201110179341 A CN 201110179341A CN 201110179341 A CN201110179341 A CN 201110179341A CN 102266843 A CN102266843 A CN 102266843A
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Abstract
The invention discloses a high-efficiency automobile topcoat spraying process. An oil paint G03, a curing agent and a diluent are mixed in a ratio to form a spray paint, an electroplating surface of a workpiece is sprayed, leveled and baked according to technical conditions, and a sprayed product of which wear resistance, water resistance, macadam impact resistance, adhesive force and appearance fullness reach the national inspection standard is obtained, wherein the curing agent is a composition prepared from the following substances in percentage by mass: 15 to 20 percent of polyurethane, 35 to 40 percent of toluene, 1 to 5 percent of dimethylbenzene, 35 to 40 percent of ethyl acetate and 1 to 5 percent of 2-methoxy1-methyl ethyl acetic acid; and the diluent is a composition prepared from the following substances in percentage by mass: 20 to 30 percent of toluene, 20 to 25 percent of methyl isobutyl ketone, 25 to 30 percent of ethyl acetate and 22 to 32 percent of ethylene glycol monoether acetate.
Description
Technical field
The present invention relates to a kind of automobile table lacquer spraying coating process, particularly a kind of automobile plate surface lacquer spraying coating process.
Background technology
The technology of automobile plate surface spraying table lacquer comprises " one is coated with one bakes " and " two are coated with one bakes ", one is coated with a roasting table lacquer spraying coating process owing to only be coated with one time lacquer, " two be coated with one roasting " technology simple, save time, but adopt the table lacquer of this technology spraying, its resistance to water, anti-rubble impact, wear-resisting wiping are not strong, outward appearance richness deficiency is easily fallen lacquer, so this technology generally is used for the lower product of quality requirements.The table lacquer of high-grade automobile is general to adopt two to be coated with a roasting spraying coating process, be coated with a roasting table lacquer spraying coating process and compare though two are coated with a roasting table lacquer spraying coating process and, overcome that the shock-resistant and wear-resisting wiping of product is poor, the shortcoming of outward appearance richness deficiency etc., but the complex process degree increases, the process cycle time lengthening, the product fraction defective strengthens, and the qualification rate that once rolls off the production line reduces, and causes manpower and materials and time cost to increase greatly.
Two are coated with a roasting table lacquer craftwork process is: spraying priming paint-levelling-spray paint-toast-roll off the production line---get finished product.
Summary of the invention
For the quality that improves product is saved human and material resources and time cost simultaneously, the inventor is according to the characteristic and the paint characteristic of plate surface, work out a kind of new one and be coated with a roasting table lacquer table lacquer spraying coating process, technology of the present invention had both kept former one and had been coated with a curing process simply save time province's thing human-saving, the high advantage of qualification rate that rolls off the production line once, improve simultaneously firmness, resistance to water, wear-resisting wiping and the anti-rubble impact of product table lacquer again greatly, strengthened the richness of product appearance.
The purpose of this invention is to provide a kind of efficient automobile table lacquer spraying coating process.
Purpose of the present invention is achieved through the following technical solutions, and comprises step:
1)Paint:
Get paint G03, will paint earlier and stir, add curing agent and diluent, stir with mixer according to described weight ratio with mixer, must spray paint, stand-by; Paint: curing agent: diluent=4:1:1.5～2;
2) spraying:
Remove the plate surface spot with IPA alcohol wipe workpiece; Get spray paint and adopt one to be coated with a curing process and directly on plating face, to spray, after the film thickness of spraying reaches 30 ± 5um, stop spraying; Operating air pressure is 0.4～0.8MPa;
3) levelling:
With step 2) the gained workpiece that sprayed the table lacquer keeps flat flow time 3～8 minutes naturally under room temperature;
4) baking:
The temperature of oven is set at: 45 ℃ in No. 1 stove, 50 ℃ in No. 2 stoves, 55 ℃ in No. 3 stove～No. 6 stoves, 50 ℃ in No. 7 stoves, 45 ℃ in No. 8 stoves; Place on the conveying belt through the workpiece behind the levelling, send in the oven and toast continuously, get product, packing; Conveying belt speed is controlled at 1.0～1.2 meters/minute;
The described curing agent composition that the material of following mass ratio is made of serving as reasons:
Polyurethane 15～20%, toluene 35～40%, dimethylbenzene 1～5%, ethyl acetate 35～40%, 2-methoxyl group 1-ethyl methyl acetic acid 1～5%
The described diluent composition that the material of following mass ratio is made of serving as reasons:
Toluene 20～30%, methyl iso-butyl ketone (MIBK) 20～25%, ethyl acetate 25～30%, ethylene glycol monoethyl ether acetate 22～32%.
In order to obtain better effect, preferred 1.12 meters/minute of conveying belt speed.
Advantage and characteristics:
1. the trust performance of this handicraft product is guaranteed.This technology aims at electroplate research, after testing its wearability, resistance to water, anti-rubble impact, adhesive force, the outward appearance richness all reaches and by national test stone.
2. this technology easy operating is saved man-hour and human cost.This technology is through many-side experiment, in conjunction with the characteristic of painting, and the improvement targetedly that general technology is carried out.Owing to cancelled spraying priming paint part in the former technology, technology is adopting under the constant situation of existing equipment, saves time 2 hours than former technology man-hour and saves one of spraying personnel, and save 400-500 unit paint expense; Because can producing 70-80 spare every day more, the raising single products of qualification rate can save fund 220,000-290,000 yuan every year according to financial accounting.
3. this technology qualification rate that once rolls off the production line can reach 95%-98%.
The specific embodiment
In order to understand the present invention, further specify the present invention with embodiment below, but do not limit the present invention.
Used paint G03 among the embodiment: be the Japanese import paint of market purchasing.
Embodiment 1The preparation curing agent
Get polyurethane 150 gram, toluene 400 grams, dimethylbenzene 25 grams, ethyl acetate 380 grams, 2-methoxyl group 1-ethyl methyl acetic acid 30 grams, be mixed into homogeneous solution, curing agent.
Embodiment 2The preparation curing agent
Get polyurethane 180 gram, toluene 380 grams, dimethylbenzene 25 grams, ethyl acetate 380 grams, 2-methoxyl group 1-ethyl methyl acetic acid 25 grams, be mixed into homogeneous solution, curing agent.
Embodiment 3The preparation diluent
Get toluene 250 grams, methyl iso-butyl ketone (MIBK) 250 grams, ethyl acetate 250 grams, ethylene glycol monoethyl ether acetate 250 grams, be mixed into homogeneous solution, get diluent.
Embodiment 4The preparation diluent
Get toluene 250 grams, methyl iso-butyl ketone (MIBK) 230 grams, ethyl acetate 280 grams, ethylene glycol monoethyl ether acetate 270 grams, be mixed into homogeneous solution, get diluent.
Embodiment 5
Get the curing agent of 4 kilograms of paint G03,1 kilogram of embodiment 2 preparation, the diluent of 2 kilograms of embodiment 4 preparations, standby.
With mixer paint is stirred earlier, all add curing agent and diluent in the paint afterwards, stir, filter with 240 order screen packs, and put it into and send the lacquer pressurized tank, adjustment air pressure is 0.4-0.6Mpa, the employing of the workpiece after the wiping one is coated with a curing process directly sprays on plating face, stops spraying after the film thickness of spraying reaches 30 ± 5um;
After the spraying, the at room temperature natural levelling 3-5 of workpiece minute, put then on the baking oven conveyer line, send into baking oven and toast continuously; Conveying belt speed was controlled at 40 minutes, to guarantee workpiece baking 40 minutes.Workpiece to the district of rolling off the production line, is put into chassis through after the assay was approved behind No. 8 baking ovens, placed 24 hours, waits to paint after inner chemical substance volatilizees fully, packs, and uses.
No. 1---No. 8 furnace temperature is respectively: 45 ℃ in No. 1 stove, 50 ℃ in No. 2 stoves, 55 ℃ in No. 3 stove to 6 stoves, 7
50 ℃ in number stove, 45 ℃ in No. 8 stoves.
Claims (3)
1. an efficient automobile table coats with lacquer spraying coating process, it is characterized in that comprising step:
1) get paint G03, will paint earlier and stir, add curing agent and diluent, stir with mixer according to described weight ratio with mixer, must spray paint, stand-by; Paint: curing agent: diluent=4:1:1.5～2;
2) spray paint is put into sent the lacquer pressurized tank, adopt one to be coated with a curing process and directly on plating face, to spray, after the film thickness of spraying reaches 30 ± 5um, stop spraying; Operating air pressure is 0.4～0.8MPa;
3) with step 2) the gained workpiece that sprayed the table lacquer keeps flat flow time 3～8 minutes naturally under room temperature;
4) the oven temperature being set is: 45 ℃ in No. 1 stove, 50 ℃ in No. 2 stoves, 55 ℃ in No. 3 stove～No. 6 stoves, 50 ℃ in No. 7 stoves, 45 ℃ in No. 8 stoves; Afterwards the workpiece behind the levelling is placed on the conveying belt, conveying belt speed is controlled at 1.0～1.2 meters/minute, sends in the oven and toasts continuously, gets product, packing;
The described curing agent composition that the material of following mass ratio is made of serving as reasons:
Polyurethane 15～20%, toluene 35～40%, dimethylbenzene 1～5%, ethyl acetate 35～40%, 2-methoxyl group 1-ethyl methyl acetic acid 1～5%;
The described diluent composition that the material of following mass ratio is made of serving as reasons:
Toluene 20～30%, methyl iso-butyl ketone (MIBK) 20～25%, ethyl acetate 25～30%, ethylene glycol monoethyl ether acetate 22～32%.
2. a kind of efficient automobile table lacquer spraying coating process according to claim 1, the composition that it is characterized in that serving as reasons described curing agent the material of following mass ratio makes:
Polyurethane 20 %, toluene 38%, dimethylbenzene 2%, ethyl acetate 38%, 2-methoxyl group 1-ethyl methyl acetic acid 2%.
3. a kind of efficient automobile table lacquer spraying coating process according to claim 1, conveying belt speed is 1.12 meters/minute when it is characterized in that toasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179341 CN102266843B (en) | 2011-06-29 | 2011-06-29 | High-efficiency automobile topcoat spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179341 CN102266843B (en) | 2011-06-29 | 2011-06-29 | High-efficiency automobile topcoat spraying process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102266843A true CN102266843A (en) | 2011-12-07 |
| CN102266843B CN102266843B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110179341 Active CN102266843B (en) | 2011-06-29 | 2011-06-29 | High-efficiency automobile topcoat spraying process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350810A (en) * | 2016-09-05 | 2017-01-25 | 上海瑞尔实业有限公司 | Production method of high-performance mirror-surface aluminum plate with surface being colorless passive film |
| CN107570399A (en) * | 2016-07-04 | 2018-01-12 | 北京宝景泰克汽车零部件有限公司 | Automobile steel sheet sprays production technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945462A (en) * | 1997-10-02 | 1999-08-31 | Loctite Corporation | Temporary protective coatings for precision surfaces |
| CN1456618A (en) * | 2003-05-29 | 2003-11-19 | 四川大学 | Vehicle finish with polymer/inorganic composite nano-powder and preparing method thereof |
| CN1887992A (en) * | 2006-07-19 | 2007-01-03 | 江苏中矿大正表面工程技术有限公司 | Nanometer modified epoxy sealing paint and its prepn |
| CN1943881A (en) * | 2006-11-02 | 2007-04-11 | 曹志辉 | New method for spray coloring rubber surface |
-
2011
- 2011-06-29 CN CN 201110179341 patent/CN102266843B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945462A (en) * | 1997-10-02 | 1999-08-31 | Loctite Corporation | Temporary protective coatings for precision surfaces |
| CN1456618A (en) * | 2003-05-29 | 2003-11-19 | 四川大学 | Vehicle finish with polymer/inorganic composite nano-powder and preparing method thereof |
| CN1887992A (en) * | 2006-07-19 | 2007-01-03 | 江苏中矿大正表面工程技术有限公司 | Nanometer modified epoxy sealing paint and its prepn |
| CN1943881A (en) * | 2006-11-02 | 2007-04-11 | 曹志辉 | New method for spray coloring rubber surface |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570399A (en) * | 2016-07-04 | 2018-01-12 | 北京宝景泰克汽车零部件有限公司 | Automobile steel sheet sprays production technology |
| CN106350810A (en) * | 2016-09-05 | 2017-01-25 | 上海瑞尔实业有限公司 | Production method of high-performance mirror-surface aluminum plate with surface being colorless passive film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102266843B (en) | 2013-07-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An Efficient Automotive Surface Paint Spraying Process Effective date of registration: 20230725 Granted publication date: 20130710 Pledgee: China Resources Shenzhen International Investment Trust Co.,Ltd. Pledgor: TIANJIN JINGMEITE SURFACE TECHNOLOGY Co.,Ltd. Registration number: Y2023980049630 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |