CN104289393B - Bumper chromatography and spraying coating process - Google Patents
Bumper chromatography and spraying coating process Download PDFInfo
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- CN104289393B CN104289393B CN201410498387.8A CN201410498387A CN104289393B CN 104289393 B CN104289393 B CN 104289393B CN 201410498387 A CN201410498387 A CN 201410498387A CN 104289393 B CN104289393 B CN 104289393B
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- adhesive tape
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- thin film
- chromatography
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Abstract
A kind of bumper chromatography and spraying coating process, relate to a kind of chromatic car and spraying coating process, including step: A. chooses patch material: choose 3M4737 adhesive tape, thin film as attaching raw material；B. attach: be attached at smooth for adhesive tape on color separation groove and be compacted, again thin film is attached on adhesive tape, and thin film is covered in whole shaded areas, then thin film surrounding anti-package is attached to inside bumper, finally respectively paste one layer of 3M4737 adhesive tape at both sides wheel hub along color separation groove location；C. spraying: bumper is reached the standard grade and carries out spray-applied primer, finish paint and varnish；D. baking: product is sent into oven and toasts；E. tear glue: after product rolls off the production line, successively thin film, adhesive tape are slowly opened by layer.The chromatography edge-smoothing of the present invention is smooth and easy, sawtooth, ooze paint, long-pending paint, burr phenomenon are greatly reduced, the quality of product is highly improved, and it is easy to operate, decreases paint slag and pollutes, improves the qualification rate of coating quality and product.
Description
Technical field
The present invention relates to a kind of chromatic car and spraying coating process, particularly a kind of bumper chromatography and spraying coating process.
Background technology
Bumper chromatography main purpose is to make to spray paint part to be partially separated with not spraying paint, and reaches the effect that color is clearly demarcated.Set
Color boundary edges require smooth, especially arcuate portion require particularly severe, be not allow for sawtooth, paint burst apart, color separation groove
The defects such as long-pending paint.What bumper chromatography was taked by partial automobile automobile parts corporation at present is spraying after chromatography, after levelling 10min, and will
Chromatography adhesive tape, U.S. stricture of vagina paper, thin film etc. are all taken off and are just toasted, such as " a kind of automobile guarantor that publication No. is CN103567128A
Danger thick stick chromatography spraying method ".The shortcoming using this method to cause has: 1. sawtooth: owing to paint film is uncured completely, have when opening adhesive tape
Shear action, paint film is upwards kicked up with adhesive tape, the zigzag phenomenon that edge is uneven occurs.2. the long-pending paint of color separation groove: owing to attaching
Adhesive tape selects improper or attaches the reason such as the most tight, during spraying, paint through adhesive tape seepage flow to color separation groove, cause painted boundary and
Long-pending paint phenomenon.3. production process is torn glue, operation inconvenience: for some automanual spraying coating lines, product is not at delivery track
The running stopped, open chromatography adhesive tape at the volley and thin film is undoubtedly the most laboriously, it is easy to cause product scratch, paint
The bad phenomenon such as upspring.4. paint slag pollute: in process of production, coating cloud is scattered on thin film, become after drying solid, shaped granule,
Dust etc., when opening thin film, these granules and dust can be scattered in production line, are difficult to clean up clean, in the course of time, produce
The ambient particle index of line rises, thus pollutes production environment, reduces coating quality.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of bumper chromatography and spraying coating process, existing to avoid
The product that technology exists tears the sawtooth of glue generation, the long-pending paint of color separation groove during spraying life, operation is inconvenient, paint the deficiency of slag pollution
Part.
The technical scheme solving above-mentioned technical problem is: a kind of bumper chromatography and spraying coating process, including following step
Rapid:
A. patch material is chosen:
Choose that viscosity is big, high temperature resistant, pliability is moderate, the adhesive tape of flush edge, thin film as attaching raw material, described
Adhesive tape is 3M4737 adhesive tape；
B. attach:
It is positioned over smooth for bumper on workbench, is first attached at color separation groove edge and color separation by smooth for 3M4737 adhesive tape
Trench bottom, is compacted 3M4737 adhesive tape with instrument, then is attached at by thin film on 3M4737 adhesive tape, and thin film is covered in insurance
The whole shaded areas of thick stick, then thin film surrounding anti-package is attached to inside bumper, finally at both sides wheel hub along color separation groove location
One layer of 3M4737 adhesive tape of each patch；
C. spraying:
Bumper is reached the standard grade and carries out spray-applied primer, finish paint and varnish, before lacquer varnish, first by the outermost of both sides hub positions
Under layer 3M4737 adhesive tape lifting；
D. baking:
Bumper is sent into oven toast；
E. glue is torn:
After bumper rolls off the production line, successively thin film, 3M4737 adhesive tape are slowly opened by layer.
The further technical scheme of the present invention is: described step E. is torn in glue, when 3M4737 adhesive tape tear-off being opened, protects
Card 3M4737 adhesive tape is more than an angle of 90 degrees with the release surface angle α of bumper, and tear-off speed is 0.05～0.2m/s.
The further technical scheme of the present invention is: described thin film is the U.S. stricture of vagina paper thin film integrating U.S. stricture of vagina paper.
The further technical scheme of the present invention is: in step, and selected 3M4737 adhesive tape physical property is as follows: wide
Degree is: 3～8mm, resistance to 100 DEG C of high temperature above, and adhesive tape is soft, and lines are straight without burr；The thin film physics performance chosen is as follows:
Resistance to 100 DEG C of high temperature above, overall width is 500～1000mm.
The further technical scheme of the present invention is: in stepb, it is desirable to 3M4737 adhesive tape is smooth is attached to color separation groove edge,
And 3M4737 adhesive tape is adjacent to bubble-free with bumper.
The further technical scheme of the present invention is: in step C, and spraying is to use " 3C1B " technique, " wet on wet " method
Carrying out film, Trace speed is 1～2m/min, spray gun pressure 0.3～0.8Mpa, and flow is 150～200ml/min, spray gun away from
From 10～30cm, each coating thickness of priming paint, finish paint, varnish is followed successively by 10～15um, 20～28um, 25～30um.
The further technical scheme of the present invention is: in described step E baking, baking temperature sets 60～80 DEG C, baking
Time is 70～85min.
The further technical scheme of the present invention is: described step G is torn in glue, first peels off anti-package thin film inside product
Surrounding, then open the thin film being attached to above product, take the adhesive tape of color separation groove the most again off.
The further technical scheme of the present invention is: also include the pre-treatment of step B1., this step between described step B and C
The particular content of rapid B1 is as follows:
When bumper is reached the standard grade, checking whether adhesive tape, thin film paste jail, emphasis checks whether product corner adhesive tape floats；If
Get loose, again compress.
The further technical scheme of the present invention is: also include the post processing of step D1., this step between described step D and E
The particular content of rapid D1 is as follows:
After product rolls off the production line, by customer requirement, product is polished, repairs.
Owing to using said structure, the bumper chromatography of the present invention and spraying coating process compared with prior art, have
Following beneficial effect:
1. the quality of product is increased dramatically:
Attaching the color separation groove of bumper product owing to present invention employs 3M4737 adhesive tape, the quality of this adhesive tape is soft
Soft, cohesive is strong, flush edge, it is ensured that the seal of lines, grazing.Therefore, between this adhesive tape and bumper color separation groove
Surface good leak tightness, be difficult to occur oozing paint, after attaching, adhesive tape also will not resilience or come off.And this technique uses product
Product just tear glue after rolling off the production line, and now paint film is cured completely, when tearing glue, paint film upwards will not be kicked up with adhesive tape, it is to avoid limit occur
The zigzag phenomenon that edge is uneven, its chromatography edge-smoothing is smooth and easy, amasss the phenomenons such as paint, burr and is also greatly reduced, makes the matter of product
Amount is increased dramatically.
After being coated with thin film, respectively paste one layer of 3M4737 adhesive tape at both sides wheel hub (along color separation groove), take off before lacquer varnish
This adhesive tape lower sprays again.Use the method that problem that color separation groove near thickness too high can be greatly lowered, greatly reduce
Tear the shearing force of glue after rolling off the production line, thus improve product quality.
Further, since the present invention is when opening 3M4737 adhesive tape tear-off, it is ensured that 3M4737 adhesive tape and bumper
Release surface angle more than an angle of 90 degrees, tear-off speed is 0.05～0.2m/s, it is possible to further avoid and zigzag phenomenon occurs.
The most easy to operate:
Owing to the present invention uses the technique just tearing glue after product rolls off the production line, it is not necessary to the delivery track in running is enterprising
Row tears glue, and operation is very easy for it, it also avoid product scratch, paint such as upsprings at the generation of bad phenomenon.
3. can reduce paint slag to pollute:
If prior art is torn glue in process of production, then need to arrange a people at streamline with line tears glue operation.Operation
District is in varnish levelling district, and near barn, therefore summer temperature can reach the high temperature of 45 to 50 degree, and therefore ambient temperature is extremely disliked
Bad.During tearing glue, sticking to the paint particle on coating film and dust can come off, levelling district is typically not provided with convulsion dress
Putting, granule and dust can inside circulate, on coating quality impact greatly, even if often sweep also cannot by the granule of the inside and
Dust is cleaned out.
And tear the technique of glue after present invention employs, centre can be saved and tear glue link, workman without at streamline with line
Tear glue operation, while minimizing personnel, be greatly reduced paint slag and polluted, thus reduced varnish levelling environomental pollution source
Generation, improve coating quality.
4. can increase substantially the qualification rate of product:
The present invention qualification rate that disposably rolls off the production line is about 80%, and therefore postprocessing working procedures pressure irregular for edge is obvious
Reduce.
Below, in conjunction with the accompanying drawings and embodiments the bumper chromatography of the present invention and the technical characteristic of spraying coating process are made into
The explanation of one step.
Accompanying drawing explanation
Bumper chromatography described in Fig. 1: embodiment one and the process chart of spraying coating process,
Bumper chromatography described in Fig. 2: embodiment two and the process chart of spraying coating process,
Fig. 3: bumper sectional drawing,
Fig. 4: chromatography attaches schematic diagram,
Fig. 5: tear glue angle schematic diagram.
In above-mentioned accompanying drawing, each label declaration is as follows:
1-spraying area, 2-color separation groove, 3-shaded areas, 4-bumper surface, 5-adhesive tape, 6-thin film.
Detailed description of the invention
Embodiment one:
A kind of bumper chromatography and spraying coating process, this technique comprises the following steps (technological process shown in Figure 1
Figure):
A. patch material is chosen:
Choose that viscosity is big, high temperature resistant, pliability is moderate, the adhesive tape of flush edge, thin film as attaching raw material, described
Adhesive tape is 3M4737 adhesive tape；Described thin film is the U.S. stricture of vagina paper thin film integrating U.S. stricture of vagina paper；
Wherein selected 3M4737 adhesive tape physical property is as follows: width is: 5mm, and resistance to 120 DEG C of high temperature above, adhesive tape is soft
Soft, lines are straight without burr；The thin film physics performance chosen is as follows: resistance to 120 DEG C of high temperature above, and overall width is 700mm.
B. attach:
It is positioned over smooth for bumper on workbench, is first attached at color separation groove edge and color separation by smooth for 3M4737 adhesive tape
Trench bottom, is compacted 3M4737 adhesive tape with instrument, then is attached at by thin film on 3M4737 adhesive tape, and thin film is covered in insurance
The whole shaded areas of thick stick, then thin film surrounding anti-package is attached to inside bumper, finally in both sides wheel hub (along color separation groove) position
Put one layer of 3M4737 adhesive tape of each patch；Require the smooth color separation groove edge that is attached to of 3M4737 adhesive tape, and 3M4737 adhesive tape pastes with bumper
Tight bubble-free.
B1. pre-treatment:
When bumper is reached the standard grade, checking whether adhesive tape, thin film paste jail, emphasis checks whether product corner adhesive tape floats；If
Get loose, again compress；
C. spraying:
Bumper is reached the standard grade and carries out spray-applied primer, finish paint and varnish；This spraying is to use " 3C1B " technique, " wet on wet " side
Method carries out film, described " 3C1B " technique, and " wet on wet " method is in vehicle spray painting technique conventional method；Walking of spraying
Linear velocity is 1.5m/min, spray gun pressure 0.5Mpa, and flow is 180ml/min, spray gun distance 20cm, and priming paint, finish paint, varnish are each
Coating thickness is followed successively by 10um, and 25um, 30um, before lacquer varnish, first by the outermost layer 3M4737 adhesive tape lifting of both sides hub positions
Under.
D. baking:
Bumper is sent into oven toast；Baking temperature sets 80 DEG C, and baking time is 70min.
D1. post processing:
After product rolls off the production line, by customer requirement, product is polished, repairs.
E. glue is torn:
After bumper rolls off the production line, first slowly peel off anti-package thin film surrounding inside product, more slowly open and be attached to product
Thin film above, the most slowly takes the adhesive tape of color separation groove off；When 3M4737 adhesive tape tear-off is opened, it is ensured that 3M4737 adhesive tape with
The angle, release surface angle α=150 degree of bumper, tear-off speed is 0.1m/s.
Embodiment two:
A kind of bumper chromatography and spraying coating process, this technique comprises the following steps (technological process shown in Figure 2
Figure):
A. patch material is chosen:
Choose that viscosity is big, high temperature resistant, pliability is moderate, the adhesive tape of flush edge, thin film as attaching raw material, described
Adhesive tape is 3M4737 adhesive tape；
Wherein selected 3M4737 adhesive tape physical property is as follows: width is: 3mm, resistance to 100 DEG C of high temperature, and adhesive tape is soft,
Lines are straight without burr；The thin film physics performance chosen is as follows: resistance to 100 DEG C of high temperature, and overall width is 500mm.
B. attach:
It is positioned over smooth for bumper on workbench, is first attached at color separation groove edge and color separation by smooth for 3M4737 adhesive tape
Trench bottom, is compacted 3M4737 adhesive tape with instrument, then is invested on 3M4737 adhesive tape by thin film double faced adhesive tape, and covered by thin film
It is placed on the whole shaded areas of bumper, then thin film surrounding anti-package is attached to inside bumper, finally at both sides wheel hub (along dividing
Color groove) position respectively pastes one layer of 3M4737 adhesive tape；Require the smooth color separation groove edge that is attached to of 3M4737 adhesive tape, and 3M4737 adhesive tape and guarantor
Danger thick stick is adjacent to bubble-free.
C. spraying:
Bumper is reached the standard grade and carries out spray-applied primer, finish paint and varnish；This spraying is to use " 3C1B " technique, " wet on wet " side
Method carries out film, described " 3C1B " technique, and " wet on wet " method is in vehicle spray painting technique conventional method；Walking of spraying
Linear velocity is 1m/min, spray gun pressure 0.3Mpa, and flow is 150ml/min, spray gun distance 10cm, and priming paint, finish paint, varnish are respectively coated with
Film thickness is followed successively by 12um, 20um, 25um.Before lacquer varnish, first by the outermost layer 3M4737 adhesive tape lifting of both sides hub positions
Under.
D. baking:
Bumper is sent into oven toast；Baking temperature sets 75 DEG C, and baking time is 80min.
E. glue is torn:
After bumper rolls off the production line, first slowly peel off anti-package thin film surrounding inside product, more slowly open and be attached to product
Thin film above, the most slowly takes the adhesive tape of color separation groove off；When 3M4737 adhesive tape tear-off is opened, it is ensured that 3M4737 adhesive tape with
The angle, release surface angle α=100 degree of bumper, tear-off speed is 0.005m/s.
Embodiment three:
A kind of bumper chromatography and spraying coating process, its step is with embodiment one, and the most relevant parameter is different:
In described step A, selected 3M4737 tape width is: 8mm, resistance to 110 DEG C of high temperature, resistance to 110 DEG C of thin film
High temperature above, overall width is 1000mm.
In described step C, during spraying, Trace speed is 2m/min, spray gun pressure 0.8Mpa, and flow is 200ml/min,
Spray gun distance 30cm, each coating thickness of priming paint, finish paint, varnish is followed successively by 15um, 28um, 30um,
In described step D, baking temperature is 60 DEG C, and baking time is 85min；
In described step E, when tearing glue, ensure the angle, release surface angle α=150 degree of 3M4737 adhesive tape and bumper,
Tear-off speed is 0.2m/s.
Embodiment four:
A kind of bumper chromatography and spraying coating process, its step is still with embodiment one, and the most relevant parameter is the most not
With:
In described step A, selected 3M4737 tape width is: 6mm, resistance to 120 DEG C of high temperature, resistance to 120 DEG C of thin film
High temperature above, overall width is 600mm.
In described step C, during spraying, Trace speed is 1.8m/min, spray gun pressure 0.6Mpa, and flow is 160ml/
Min, spray gun distance 15cm, each coating thickness of priming paint, finish paint, varnish is followed successively by 11um, 23um, 28um.
In described step D, baking temperature is 75 DEG C, and baking time is 70min；
In described step E, ensure the angle, release surface angle α=95 degree of 3M4737 adhesive tape and bumper when tearing glue, tear
Taking off speed is 0.15m/s.
Claims (9)
1. a bumper chromatography and spraying coating process, it is characterised in that: comprise the following steps:
A. patch material is chosen:
Choose that viscosity is big, high temperature resistant, pliability is moderate, the adhesive tape of flush edge, thin film be as attaching raw material, described adhesive tape
For 3M4737 adhesive tape；
B. attach:
It is positioned over smooth for bumper on workbench, is first attached at color separation groove edge and color separation bottom land by smooth for 3M4737 adhesive tape
Portion, is compacted 3M4737 adhesive tape with instrument, then is attached at by thin film on 3M4737 adhesive tape, and thin film is covered in bumper
Whole shaded areas, then thin film surrounding anti-package is attached to inside bumper, finally respectively paste along color separation groove location at both sides wheel hub
One layer of 3M4737 adhesive tape；
C. spraying:
Bumper is reached the standard grade and carries out spray-applied primer, finish paint and varnish, before lacquer varnish, first by the outermost layer of both sides hub positions
Under 3M4737 adhesive tape lifting；
D. baking:
Bumper is sent into oven toast；
E. glue is torn:
After bumper rolls off the production line, successively thin film, 3M4737 adhesive tape are slowly opened by layer；
Described step E. is torn in glue, when 3M4737 adhesive tape tear-off being opened, it is ensured that 3M4737 adhesive tape and the stripping of bumper
From face angle α more than an angle of 90 degrees, tear-off speed is 0.05～0.2m/s.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: described thin film is collection U.S.
Stricture of vagina paper is in the U.S. stricture of vagina paper thin film of one.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: in step, selected
3M4737 adhesive tape physical property as follows: width is: 3～8mm, resistance to 100 DEG C of high temperature above, and adhesive tape is soft, and lines are straight without hair
Limit；The thin film physics performance chosen is as follows: resistance to 100 DEG C of high temperature above, and overall width is 500～1000mm.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: in stepb, it is desirable to
The smooth color separation groove edge that is attached to of 3M4737 adhesive tape, and 3M4737 adhesive tape and bumper be adjacent to bubble-free.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: in step C, spraying is
Using " 3C1B " technique, " wet on wet " method carries out film, and Trace speed is 1～2m/min, spray gun pressure 0.3～0.8Mpa,
Flow is 150～200ml/min, spray gun distance 10～30cm, and each coating thickness of priming paint, finish paint, varnish is followed successively by 10～15 μm,
20～28 μm, 25～30 μm.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: described step D baking
In, baking temperature sets 60～80 DEG C, and baking time is 70～85min.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: described step E tears glue
In, first peel off anti-package thin film surrounding inside product, then open the thin film being attached to above product, take color separation groove the most again off
Adhesive tape.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: described step B and C it
Between also include the pre-treatment of step B1., the particular content of this step B1 is as follows:
When bumper is reached the standard grade, checking whether adhesive tape, thin film paste jail, emphasis checks whether product corner adhesive tape floats；If there being pine
De-, again compress.
Bumper chromatography the most according to claim 1 and spraying coating process, it is characterised in that: described step D and E it
Between also include the post processing of step D1., the particular content of this step D1 is as follows:
After product rolls off the production line, by customer requirement, product is polished, repairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498387.8A CN104289393B (en) | 2014-09-25 | 2014-09-25 | Bumper chromatography and spraying coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498387.8A CN104289393B (en) | 2014-09-25 | 2014-09-25 | Bumper chromatography and spraying coating process |
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| Publication Number | Publication Date |
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| CN104289393A CN104289393A (en) | 2015-01-21 |
| CN104289393B true CN104289393B (en) | 2016-09-28 |
Family
ID=52309478
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111389665B (en) * | 2016-08-01 | 2021-06-08 | 深圳市善营自动化股份有限公司 | Coating machine and coating method |
| CN106378294B (en) * | 2016-08-30 | 2019-07-23 | 宁波科镭汽车零部件有限公司 | A kind of spraying process of automobile parts |
| CN106423798B (en) * | 2016-09-30 | 2019-08-09 | 宁波东昊汽车部件有限公司 | A kind of automotive air outlet and manufacturing process of dust protection |
| CN108580214B (en) * | 2018-05-16 | 2021-05-18 | 高木汽车部件（佛山）有限公司 | Automobile tail wing double-color spraying process |
| CN110001261A (en) * | 2019-05-16 | 2019-07-12 | 东莞市开来电子有限公司 | It is a kind of to realize the processing technology that stainless steel logo is pasted on oil spout glue part |
| CN111589669A (en) * | 2020-06-18 | 2020-08-28 | 深圳市洲明科技股份有限公司 | LED display module lamp seam glue pouring method and system |
| CN112275601B (en) * | 2020-10-16 | 2022-03-22 | 中国第一汽车股份有限公司 | Novel coating process for coating vehicle body by regional color paint differentiation |
| CN115532554A (en) * | 2022-10-26 | 2022-12-30 | 东风彼欧(成都)汽车外饰系统有限公司 | Bumper leather pattern shielding paint spraying process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128042A (en) * | 2013-03-13 | 2013-06-05 | 柳州五菱汽车有限责任公司 | Automobile body color register coating process |
| CN103567128A (en) * | 2013-11-20 | 2014-02-12 | 上汽通用五菱汽车股份有限公司 | Color register spraying method of automobile bumper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62106873A (en) * | 1985-11-05 | 1987-05-18 | Toyota Motor Corp | Method for painting synthetic resin product in coating separated state |
| JPH01203080A (en) * | 1988-02-10 | 1989-08-15 | Toyota Motor Corp | Separated coating method |
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2014
- 2014-09-25 CN CN201410498387.8A patent/CN104289393B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128042A (en) * | 2013-03-13 | 2013-06-05 | 柳州五菱汽车有限责任公司 | Automobile body color register coating process |
| CN103567128A (en) * | 2013-11-20 | 2014-02-12 | 上汽通用五菱汽车股份有限公司 | Color register spraying method of automobile bumper |
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Effective date of registration: 20210507 Address after: 6 / F, office building, Suning logistics center, guanshanhu Industrial Park, Guiyang City, Guizhou Province Patentee after: Guiyang Fangsheng Auto Accessories Co.,Ltd. Address before: No.2, Yanghui Road East, Yanghe Industrial New District, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU YXFS AUTO TRIM Co.,Ltd. |
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