CN104889041B - Vehicle PVC sealant coating process - Google Patents
Vehicle PVC sealant coating process Download PDFInfo
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- CN104889041B CN104889041B CN201410076733.3A CN201410076733A CN104889041B CN 104889041 B CN104889041 B CN 104889041B CN 201410076733 A CN201410076733 A CN 201410076733A CN 104889041 B CN104889041 B CN 104889041B
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Abstract
The invention relates to the field of vehicle manufacturing, in particular to a vehicle PVC sealant coating process. The vehicle PVC sealant coating process comprises the following steps in sequence: (1) a coating part is cleaned by ethanol, and is wiped up; (2) a sealant with a viscosity of 400-500 mpa.s is positioned on the surface of the coating part; a fiber layer is embedded in the sealant; and the sealant is uniformly blown about by a blower gun; (3) the sealant is baked for 1-2 min at a temperature of 200-250 DEG C; (4) a cutter mark is machined on the surface of the baked sealant; and then, a sealant with a viscosity of 1500-2000 mpa.s is sprayed on the surface of the sealant again; (5) the sealant is dried to 90% at a temperature of 140 DEG C; and then, a sealant with a viscosity of 800-1000 mpa.s is sprayed on the surface of the sealant again; and (6) the sealant is dried at the temperature of 140 DEG C; and the sprayed place is finished. The process is simple in operation procedures, prevents the interference on the sealant effect due to human factors caused by gluing a welding line gluing part by such tools as a brush, reduces the potential quality risk, prevents the waste of production auxiliary materials, and is excellent in tightness and firmness of the gluing part.
Description
Technical field
The present invention relates to automobile manufacturing field, and in particular to a kind of automobile PVC fluid sealant coating process.
Background technology
The painting dressing automobiles PVC coating techniques for being used at present are all to take the weld seam position first to needing gluing to carry out beating
Glue, is then being brushed with instruments such as hairbrush to gluing weld seam position, is easy to improve sealing of the fluid sealant to weld seam.It is such
Operational method has very big hidden danger of quality, and employee somewhat carefully not may result in the generation of postorder leak quality problems, and brushing adhesive
Certain workload is needed, also in early operation process the quality problems such as cull can be caused to occur.
The shortcoming of the painting dressing automobiles fluid sealant process of existing employing：
1st, flow chart is relatively cumbersome, needs first to weld seam position gluing, then again to instruments such as weld seam position hairbrush
To weld seam gluing position brush coating；
2nd, this weld seam coating process is qualifying point and critical process, existing production technology human users factor mistake
Greatly, need completely to think control, with the presence of certain potential quality risk；
3rd, the hairbrush consumption that average every month, one post was consumed is 10, there is certain production auxiliary materials and wastes；
4th, this weld seam gluing position brush coating carefully can only also play certain quality booster action again, it is impossible to from root more
Good control.
The content of the invention
The present invention is in order to solve the above problems, there is provided a kind of automobile PVC fluid sealant coating process.
In order to reach foregoing invention purpose, the present invention is employed the following technical solutions：
A kind of automobile PVC fluid sealant coating process, comprises the following steps successively：
1）Employing ethanol purge to application position, and wipe clean；
2）Viscosity is placed in into application portion faces for the fluid sealant of 400-500mpa.s, and it is fine in the embedded unification layer of fluid sealant
Dimension layer, is then uniformly dispelled fluid sealant with air pressure gun；
3）Baking 1-2min is carried out to fluid sealant with 200-250 DEG C；
4）Fluid sealant Surface Machining tool marks after baking, then on fluid sealant surface, again spray viscosity is 1500-
2000mpa.s fluid sealant；
5）Fluid sealant is dried to ninety percent dry at 140 DEG C, is again 800- in fluid sealant surface spraying viscosity
1000mpa.s fluid sealant；
6）Dry and repair at spraying at 140 DEG C.
Using the fluid sealant of three spraying different viscosities, fluid sealant can be made fully to fill up application position, promote sealing
Glue is combined even closer with matrix, so as to increase the conjugation of fluid sealant and matrix, extends the life-span of fluid sealant.
Preferably, step 2）Solid content 90-94%.
Preferably, step 2）The thickness of fluid sealant is 0.5-1mm.
Preferably, the step 2）, step 4）With step 5）Fluid sealant used, in parts by weight including following
Component：PVC paste resin 20-25 parts, Adipol 10A 10-13 parts, polyetheramine 8-12 parts, Isooctyl acrylate monomer 3-8
Part, Hydroxypropyl acrylate 2-5 parts, hydroxyethyl methylacrylate 3-5 parts, DOTP 2-7 parts, trimethylolpropane
1-2 parts, stearic acid octadecyl 1-3 parts, methyl oleate 1-4 parts, epoxy resin 10-15 parts, butyl rubber 1-3 parts aoxidize stone
Black alkene 0.1-0.5 parts, white carbon 3-5 parts, politef 1-5 parts, afwillite 1-3 parts, kieselguhr 1-3 parts.
Polyetheramine is not only high-performance firming agent so that product strength is high, toughness is high and fatigue performance is good, and can
To reduce system viscosity.The present invention uses it for first fluid sealant.
Graphene oxide and each group are grouped into compound mixture, after fluid sealant is dried, can forming properties be excellent answers
Condensation material, so that fluid sealant has after hardening more preferable mechanical property.
Preferably, the mean molecule quantity of butyl rubber is 8000.
The invention has the beneficial effects as follows：Flow chart is simple, and avoids with instruments such as hairbrush to weld seam gluing position brush
Interference of the anthropic factor that glue is produced to the effect of fluid sealant, reduces potential quality risk；Avoid production auxiliary materials waste；
Gluing position sealing and firmness are good.
Specific embodiment
Explanation is further described to technical scheme below by specific embodiment.
If without specified otherwise, the raw material employed in embodiments of the invention is raw material commonly used in the art, implements
Method employed in example, is the conventional method of this area.
Embodiment 1：
A kind of fluid sealant, in parts by weight including following each component：20 parts of PVC paste resin, adipic acid two is different
12 parts of monooctyl ester, 12 parts of polyetheramine, 3 parts of Isooctyl acrylate monomer, 4 parts of Hydroxypropyl acrylate, 5 parts of hydroxyethyl methylacrylate, to benzene
2 parts of diformazan dioctyl phthalate, 2 parts of trimethylolpropane, 3 parts of stearic acid octadecyl, 1 part of methyl oleate, 13 parts of epoxy resin is put down
Average molecular weight is 8,000 3 parts of butyl rubber, 0.1 part of graphene oxide, 4 parts of white carbon, 5 parts of politef, silicate hydrate
1 part of calcium, 2 parts of kieselguhr.
Each component is crushed to into fineness less than 20 μm, then admixed together successively, homogenizer stirs, is prepared
Finished product is obtained, it is stand-by.
A kind of automobile PVC fluid sealant coating process, comprises the following steps successively：
1）Employing ethanol purge to application position, and wipe clean；
2）Viscosity is placed in into application portion faces for the fluid sealant of 500mpa.s, and in the embedded unification layer fiber of fluid sealant
Layer, is then uniformly dispelled fluid sealant with air pressure gun；
3）Baking 2min is carried out to fluid sealant with 200 DEG C；
4）Fluid sealant Surface Machining tool marks after baking, then on fluid sealant surface, again spray viscosity is
2000mpa.s fluid sealant；
5）Fluid sealant is dried to ninety percent dry, again in fluid sealant surface spraying viscosity for 800mpa.s's at 140 DEG C
Fluid sealant；
6）Dry and repair at spraying at 140 DEG C.
Embodiment 2：
A kind of fluid sealant, in parts by weight including following each component：22 parts of PVC paste resin, adipic acid two is different
13 parts of monooctyl ester, 8 parts of polyetheramine, 5 parts of Isooctyl acrylate monomer, 5 parts of Hydroxypropyl acrylate, 3 parts of hydroxyethyl methylacrylate, to benzene two
4 parts of formic acid dioctyl ester, 2 parts of trimethylolpropane, 1 part of stearic acid octadecyl, 2 parts of methyl oleate, 15 parts of epoxy resin, averagely
Molecular weight is 8,000 1 part of butyl rubber, 0.3 part of graphene oxide, 5 parts of white carbon, 1 part of politef, afwillite 2
Part, 3 parts of kieselguhr.
Each component is crushed to into fineness less than 20 μm, then admixed together successively, homogenizer stirs, is prepared
Finished product is obtained, it is stand-by.
A kind of automobile PVC fluid sealant coating process, comprises the following steps successively：
1）Employing ethanol purge to application position, and wipe clean；
2）Viscosity is placed in into application portion faces for the fluid sealant of 400mpa.s, and in the embedded unification layer fiber of fluid sealant
Layer, is then uniformly dispelled fluid sealant with air pressure gun；
3）Baking 2min is carried out to fluid sealant with 220 DEG C；
4）Fluid sealant Surface Machining tool marks after baking, then on fluid sealant surface, again spray viscosity is
1500mpa.s fluid sealant；
5）Fluid sealant is dried to ninety percent dry, again in fluid sealant surface spraying viscosity for 900mpa.s's at 140 DEG C
Fluid sealant；
6）Dry and repair at spraying at 140 DEG C.
Embodiment 3：
A kind of fluid sealant, in parts by weight including following each component：25 parts of PVC paste resin, adipic acid two is different
10 parts of monooctyl ester, 9 parts of polyetheramine, 8 parts of Isooctyl acrylate monomer, 2 parts of Hydroxypropyl acrylate, 4 parts of hydroxyethyl methylacrylate, to benzene two
7 parts of formic acid dioctyl ester, 1 part of trimethylolpropane, 2 parts of stearic acid octadecyl, 4 parts of methyl oleate, 10 parts of epoxy resin, averagely
Molecular weight is 8,000 2 parts of butyl rubber, 0.5 part of graphene oxide, 3 parts of white carbon, 3 parts of politef, afwillite 3
Part, 1 part of kieselguhr.
Each component is crushed to into fineness less than 20 μm, then admixed together successively, homogenizer stirs, is prepared
Finished product is obtained, it is stand-by.
A kind of automobile PVC fluid sealant coating process, comprises the following steps successively：
1）Employing ethanol purge to application position, and wipe clean；
2）Viscosity is placed in into application portion faces for the fluid sealant of 450mpa.s, and in the embedded unification layer fiber of fluid sealant
Layer, is then uniformly dispelled fluid sealant with air pressure gun；
3）Baking 1min is carried out to fluid sealant with 250 DEG C；
4）Fluid sealant Surface Machining tool marks after baking, then on fluid sealant surface, again spray viscosity is
1800mpa.s fluid sealant；
5）Fluid sealant is dried to ninety percent dry, again in fluid sealant surface spraying viscosity for 1000mpa.s's at 140 DEG C
Fluid sealant；
6）Dry and repair at spraying at 140 DEG C.
Claims (5)
1. a kind of automobile PVC fluid sealant coating process, it is characterised in that comprise the following steps successively：
1）Employing ethanol purge to application position, and wipe clean；
2）Viscosity is placed in into application portion faces for the fluid sealant of 400-500mpa.s, and in the embedded unification layer fiber of fluid sealant
Layer, is then uniformly dispelled fluid sealant with air pressure gun；
3）Baking 1-2min is carried out to fluid sealant with 200-250 DEG C；
4）Fluid sealant Surface Machining tool marks after baking, then on fluid sealant surface, again spray viscosity is 1500-
2000mpa.s fluid sealant；
5）Fluid sealant is dried to ninety percent dry, again in fluid sealant surface spraying viscosity for 800-1000mpa.s's at 140 DEG C
Fluid sealant；
6）Dry and repair at spraying at 140 DEG C.
2. a kind of automobile PVC fluid sealant coating process according to claim 1, it is characterised in that step 2）Solid point contains
Amount 90-94%.
3. a kind of automobile PVC fluid sealant coating process according to claim 1, it is characterised in that step 2）Fluid sealant
Thickness is 0.5-1mm.
4. a kind of automobile PVC fluid sealant coating process according to claim 1, it is characterised in that the step 2）, step
4）With step 5）Fluid sealant used, in parts by weight including following each component：PVC paste resin 20-25 parts, oneself two
Sour di-isooctyl 10-13 parts, polyetheramine 8-12 parts, Isooctyl acrylate monomer 3-8 parts, Hydroxypropyl acrylate 2-5 parts, methacrylic acid
Hydroxyl ethyl ester 3-5 part, DOTP 2-7 parts, trimethylolpropane 1-2 parts, stearic acid octadecyl 1-3 parts, Oleic acid
Methyl ester 1-4 parts, epoxy resin 10-15 parts, butyl rubber 1-3 parts, graphene oxide 0.1-0.5 parts, white carbon 3-5 parts, poly- four
Fluorothene 1-5 part, afwillite 1-3 parts, kieselguhr 1-3 parts.
5. a kind of automobile PVC fluid sealant coating process according to claim 4, it is characterised in that butyl rubber it is average
Molecular weight is 8000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076733.3A CN104889041B (en) | 2014-03-05 | 2014-03-05 | Vehicle PVC sealant coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076733.3A CN104889041B (en) | 2014-03-05 | 2014-03-05 | Vehicle PVC sealant coating process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104889041A CN104889041A (en) | 2015-09-09 |
| CN104889041B true CN104889041B (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410076733.3A Expired - Fee Related CN104889041B (en) | 2014-03-05 | 2014-03-05 | Vehicle PVC sealant coating process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000804B (en) * | 2016-07-28 | 2018-09-11 | 上汽大众汽车有限公司 | A method of manufacture brushing pen |
| CN107746637A (en) * | 2017-11-14 | 2018-03-02 | 苏州甫众塑胶有限公司 | Low glutinous anti-stone hits PVC paste resin coating and preparation method thereof |
| CN109266306A (en) * | 2018-08-15 | 2019-01-25 | 四川新驱科为科技有限公司 | A kind of automobile PVC welded seal glue and preparation method thereof |
| CN110153597A (en) * | 2019-05-06 | 2019-08-23 | 苏州金同源金属科技有限公司 | A kind of welding product sealing technology |
| CN111804528A (en) * | 2020-07-23 | 2020-10-23 | 保定市宏腾科技有限公司 | Production process and production line of silica gel sealing strip |
| CN114632684A (en) * | 2022-04-08 | 2022-06-17 | 华涂技术(深圳)股份有限公司 | Anticorrosive coating process for automobile body |
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|---|---|---|---|---|
| JPH03114571A (en) * | 1989-09-27 | 1991-05-15 | Honda Motor Co Ltd | Method for applying sealant |
| CN1090594A (en) * | 1993-02-04 | 1994-08-10 | 西安近代化学研究所 | Sealant for metal welding seam |
| JP2001025705A (en) * | 1999-07-14 | 2001-01-30 | Toyota Motor Corp | Coating finish method of welded part of vehicle |
| CN101423685A (en) * | 2007-10-30 | 2009-05-06 | 比亚迪股份有限公司 | Protective coating and preparation method thereof |
| CN102757746A (en) * | 2012-06-14 | 2012-10-31 | 陕西中核大地实业有限公司 | Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle |
| CN103398175A (en) * | 2013-08-14 | 2013-11-20 | 湘潭电机股份有限公司 | Sealant coating technology for open-type irregular shape junction surfaces |
-
2014
- 2014-03-05 CN CN201410076733.3A patent/CN104889041B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03114571A (en) * | 1989-09-27 | 1991-05-15 | Honda Motor Co Ltd | Method for applying sealant |
| CN1090594A (en) * | 1993-02-04 | 1994-08-10 | 西安近代化学研究所 | Sealant for metal welding seam |
| JP2001025705A (en) * | 1999-07-14 | 2001-01-30 | Toyota Motor Corp | Coating finish method of welded part of vehicle |
| CN101423685A (en) * | 2007-10-30 | 2009-05-06 | 比亚迪股份有限公司 | Protective coating and preparation method thereof |
| CN102757746A (en) * | 2012-06-14 | 2012-10-31 | 陕西中核大地实业有限公司 | Environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for vehicle |
| CN103398175A (en) * | 2013-08-14 | 2013-11-20 | 湘潭电机股份有限公司 | Sealant coating technology for open-type irregular shape junction surfaces |
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| CN104889041A (en) | 2015-09-09 |
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Granted publication date: 20170426 Termination date: 20190305 |