CN102896083A - Bodywork finish coat coating method and bodywork finish coat coating structure - Google Patents
Bodywork finish coat coating method and bodywork finish coat coating structure Download PDFInfo
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- CN102896083A CN102896083A CN2012103938109A CN201210393810A CN102896083A CN 102896083 A CN102896083 A CN 102896083A CN 2012103938109 A CN2012103938109 A CN 2012103938109A CN 201210393810 A CN201210393810 A CN 201210393810A CN 102896083 A CN102896083 A CN 102896083A
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- coat layer
- finish paint
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- tone
- polyurethane
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Abstract
The invention provides a bodywork finish coat coating method and a bodywork finish coat coating structure. The method comprises the following steps of: coating first polyurethane intermediate coat on a base bottom layer to form a first polyurethane intermediate coat layer; repairing the first polyurethane intermediate coat layer; and coating master finish coat on the repaired first polyurethane intermediate coat layer to form a master finish coat layer. The polyurethane intermediate coat adopted by the embodiment of the invention is medium yellow (RAL1002 color), and the appearance saturation of last finish coat can also be well highlighted without the covering of the master finish coat or the repairing finish coat, and therefore, the step of coating the master finish coat or the repairing finish coat can be reduced, a bodywork finish coat coating process is simplified, and the use cost of the finish coat is also reduced.
Description
Technical field
The present invention relates to the finish paint application techniques, relate in particular to a kind of car body finish paint coating process and car body finish paint coated structure.
Background technology
Existing train body finish paint coated structure is respectively from the bottom to top the coat of paint 2 in subfoundation 1, the epoxy, first pass mass-tone top coat layer or repairs top coat layer 3, second time mass-tone top coat layer 4 and layer of varnish 5 as shown in Figure 1.Coating process is as follows:
Paint in step 2, the 1 spraying epoxy of the subfoundation after repairing, form the coat of paint 2 in the epoxy.Again adopt the mode of blade coating putty to repair after the coat of paint 2 parches in epoxy, and polish.
The coat of paint 2 spraying first pass mass-tone finish paints or repairing finish paint in step 3, the epoxy after repairing polishing, form the first mass-tone top coat layer or repair top coat layer 3, to hide the color of the coat of paint 2 in the described epoxy, for providing, second time mass-tone top coat layer 4 apply preferably bottom, so that the color saturation of described second time mass-tone top coat layer 4 is better.Until the first mass-tone top coat layer or repair top coat layer 3 parch present blemish after, adopt for the third time the mode of blade coating putty to repair, and polish.
Step 4, the first mass-tone top coat layer after repairing or second time mass-tone finish paint of repairing top coat layer 3 sprayings form second time mass-tone top coat layer 4.
Step 5, after second time mass-tone top coat layer 4 parches, on described second time mass-tone top coat layer 4, be coated with at last varnishing.
The middle coat of paint can be filled up the surface depression of subfoundation, highlights subfoundation concave-convex surface point defect, so that repair and polishing, can also increase the adhesive force of subsequent coated mass-tone finish paint.The middle japanning of available technology adopting is to paint in the epoxy, and japanning is ice grey colour system in this epoxy.For making finish paint color saturation and paint film compactness better, need before applying second time mass-tone finish paint, to apply described first pass mass-tone finish paint or repair finish paint, paint further basic ground is repaired and hidden in the epoxy of icing grey.And mass-tone finish paint or to repair the glossiness of finish paint high, glossiness is 90% when being generally 60 degree angle illumination measurements, and is reflective dazzling.To the mass-tone finish paint or repair that defect inspection is carried out on the top coat layer surface and need to reduce the illumination of surrounding environment when repairing, strengthened like this workmen's work difficulty.In addition, mass-tone finish paint or repairing top coat layer are harder, are prone to the polishing scratch defective during patching coating grinding process, can further strengthen workmen's patch work amount.
Summary of the invention
The invention provides a kind of car body finish paint coating process and car body finish paint coated structure, to improve finish paint coating efficiency and quality.
One aspect of the present invention provides a kind of car body finish paint coating process, comprising:
Apply the first pass polyurethane inter-coat at subfoundation, form the first polyurethane inter-coat layer;
Repair described the first polyurethane inter-coat layer;
Described the first polyurethane inter-coat layer after repairing applies the mass-tone finish paint, forms the mass-tone top coat layer.
Another aspect of the present invention provides a kind of car body finish paint coated structure, comprising: subfoundation, the first polyurethane inter-coat layer and mass-tone top coat layer; Wherein,
Described the first polyurethane inter-coat layer is above described subfoundation;
Described mass-tone top coat layer is above described the first polyurethane inter-coat layer.
Technique effect of the present invention is: the polyurethane inter-coat that the embodiment of the invention adopts is middle yellow (RAL1002 look), need not the mass-tone finish paint or repair the outward appearance saturation degree that finish paint also can be well given prominence in the covering of finish paint, therefore can reduce by a mass-tone finish paint or repair the coating step of finish paint, simplify car body finish paint coating process, also reduced the finish paint use cost.
Description of drawings
Fig. 1 is existing train body finish paint coated structure schematic diagram;
Fig. 2 is the schematic flow sheet of car body finish paint coating process embodiment one provided by the invention;
Fig. 3 is the schematic flow sheet of car body finish paint coating process embodiment two provided by the invention;
Fig. 4 is the structural representation of car body finish paint coated structure embodiment one provided by the invention;
Fig. 5 is the structural representation of car body finish paint coated structure embodiment two provided by the invention;
Fig. 6 is the structural representation of car body finish paint coated structure embodiment three provided by the invention.
The specific embodiment
As shown in Figure 2, the schematic flow sheet of car body finish paint coating process embodiment one provided by the invention.As shown in FIG., the described car body finish paint of present embodiment coating process comprises:
Wherein, described polyurethane inter-coat layer is middle yellow (RAL1002 look), and glossiness is 50% to 70% when 60 spend the angle illumination measurement.Described subfoundation is rust preventive coating and putty layer specifically.Present embodiment is not limited to this, and described subfoundation can also be other enamelled coatings or directly be car body surface after repairing.
Particularly, at first apply patching material at described the first polyurethane inter-coat layer, form repair layer; Then, described repair layer is polished.Here need to prove: because of polyurethane inter-coat layer first pass mass-tone more of the prior art finish paint or to repair the hardness of the enamelled coating that finish paint forms low, therefore, in the present embodiment when described repair layer is polished, should adopt fine grinding technology, namely adopt than in the prior art to first pass mass-tone finish paint or when repairing enamelled coating that finish paint forms and polishing the low milling tools of roughness of employed milling tools carry out fine grinding.Wherein, described coating patching material putty specifically.The workmen is blade coating putty on described the first polyurethane inter-coat layer, then, use the lower milling tools of roughness to carry out fine grinding, with equating the first polyurethane inter-coat layer, for the coating of mass-tone finish paint provides preferably basic unit, and then improve the coating quality of car body finish paint.
The polyurethane inter-coat that present embodiment adopts is middle yellow (RAL1002 look), need not the mass-tone finish paint or repair the outward appearance saturation degree that the mass-tone finish paint that presents at last also can be well given prominence in the covering of finish paint, therefore can reduce by a mass-tone finish paint or repair the coating step of finish paint, simplify car body finish paint coating process, also reduced the finish paint use cost.And, the described polyurethane inter-coat layer case hardness that present embodiment adopts is soft than mass-tone finish paint or repairing finish paint, be beneficial to workmen's repairing, be not prone in the prior art to first pass mass-tone finish paint or the polishing scratch defective when repairing finish paint and carrying out grinding process, reduce rework rate, improved finish paint coating efficiency and the last coating effect that applies the mass-tone finish paint.
Further, better for the surface quality that the mass-tone finish paint is finally presented, the planarization of the coating basic unit of mass-tone finish paint is just had relatively high expectations.If only adopt the technique that applies a polyurethane inter-coat in above-described embodiment one, can be very high to workmen's coating technical ability requirement.For applying the lower workmen of technical ability, can adopt the mode that repeatedly applies repeatedly repairing to reach higher mass-tone finish paint and apply basic level requirement.Particularly, described car body finish paint coating process provided by the invention implements two, as shown in Figure 3, the step 101 in comprising above-described embodiment one and 102, also comprises the steps: after described step 102
Step 104, described the first polyurethane inter-coat layer after repairing apply second time polyurethane inter-coat, form the second polyurethane inter-coat layer.
Step 105, described the second polyurethane inter-coat layer of repairing.
Correspondingly, step 103 should be described in above-described embodiment one: step 103 ', described the second polyurethane inter-coat layer after repairing applies the mass-tone finish paint, forms the mass-tone top coat layer.
Apply example below in conjunction with the passenger car body finish paint, car body finish paint coating process provided by the invention is described further.
At first, apply antirust paint on the passenger car body surface, and parch afterwards blade coating putty at antirust paint, and polishing, to repair rust preventive coating, basis of formation bottom.
Then, at described subfoundation spraying first pass polyurethane inter-coat, form the first polyurethane inter-coat layer.After the first polyurethane inter-coat layer parches, again adopt the mode of blade coating putty to repair, and polished in the place of repairing.
Subsequently, the second time polyurethane inter-coat of the first polyurethane inter-coat layer spraying after repairing forms the second polyurethane inter-coat layer.After the second polyurethane inter-coat layer parches, adopt for the third time the mode of blade coating putty to repair, and polished in the place of repairing.
Again, the second polyurethane inter-coat layer spraying mass-tone finish paint after repairing forms the mass-tone top coat layer.
At last, after the mass-tone top coat layer parches, lacquer varnish on described mass-tone top coat layer.
As shown in Figure 4, the structural representation of car body finish paint coated structure embodiment one provided by the invention.As shown in FIG., the described car body finish paint of present embodiment coated structure comprises: subfoundation 6, the first polyurethane inter-coat layer 7 and mass-tone top coat layer 8.Wherein, described the first polyurethane inter-coat layer 7 is above described subfoundation 6.Described mass-tone top coat layer 8 is above described the first polyurethane inter-coat layer.Wherein, described subfoundation 6 specifically can be rust preventive coating and putty layer.
The polyurethane inter-coat that present embodiment adopts is middle yellow (RAL1002 look), need not the mass-tone finish paint or repair the outward appearance saturation degree that the mass-tone finish paint that presents at last also can be well given prominence in the covering of finish paint, therefore can reduce by a mass-tone finish paint or repair the coating step of finish paint, simplify car body finish paint coating process, also reduced the finish paint use cost.And, the described polyurethane inter-coat layer case hardness that present embodiment adopts is soft than mass-tone finish paint or repairing finish paint, be beneficial to workmen's repairing, be not prone in the prior art to first pass mass-tone finish paint or the polishing scratch defective when repairing finish paint and carrying out grinding process, reduce rework rate, improved finish paint coating efficiency and the last coating effect that applies the mass-tone finish paint.
Further, better for the surface quality that the mass-tone finish paint is finally presented, the planarization of the coating basic unit of mass-tone finish paint is just had relatively high expectations.If only adopt one deck polyurethane inter-coat layer in above-described embodiment one, can be very high to workmen's coating technical ability requirement.For applying the lower workmen of technical ability, can adopt the mode that repeatedly applies repeatedly repairing to reach higher mass-tone finish paint and apply basic level requirement.Particularly, car body finish paint coated structure embodiment two provided by the invention, as shown in Figure 5, the end of from and on comprise successively: subfoundation 6, the first polyurethane inter-coat layer 7, the second polyurethane inter-coat layer 9 and mass-tone top coat layer 8.
As shown in Figure 6, the structural representation of car body finish paint coated structure embodiment three provided by the invention.Present embodiment three is a concrete application example of train body surface finish paint coated structure.Particularly, this car body finish paint coated structure the end of from and on comprise successively: subfoundation 1, the first polyurethane inter-coat layer 7, the second polyurethane inter-coat layer 9, mass-tone top coat layer 8 and layer of varnish 5.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a car body finish paint coating process is characterized in that, comprising:
Apply the first pass polyurethane inter-coat at subfoundation, form the first polyurethane inter-coat layer;
Repair described the first polyurethane inter-coat layer;
Described the first polyurethane inter-coat layer after repairing applies the mass-tone finish paint, forms the mass-tone top coat layer.
2. car body finish paint coating process according to claim 1 is characterized in that, after described the first polyurethane inter-coat layer of described repairing, also comprises:
Described the first polyurethane inter-coat layer after repairing applies second time polyurethane inter-coat, forms the second polyurethane inter-coat layer;
Repair described the second polyurethane inter-coat layer;
Correspondingly, described the first polyurethane inter-coat layer after repairing applies the mass-tone finish paint, forms the mass-tone top coat layer, should be:
Described the second polyurethane inter-coat layer after repairing applies the mass-tone finish paint, forms the mass-tone top coat layer.
3. car body finish paint coating process according to claim 1 and 2 is characterized in that, described the first polyurethane inter-coat layer of described repairing is specially:
Apply patching material at described the first polyurethane inter-coat layer, form repair layer;
Described repair layer is polished.
4. a car body finish paint coated structure is characterized in that, comprising: subfoundation, the first polyurethane inter-coat layer and mass-tone top coat layer; Wherein,
Described the first polyurethane inter-coat layer is above described subfoundation;
Described mass-tone top coat layer is above described the first polyurethane inter-coat layer.
5. require 4 described car body finish paint coated structures according to power, it is characterized in that also comprise: the second polyurethane inter-coat layer, described the second polyurethane inter-coat layer is between described the first polyurethane inter-coat layer and described mass-tone top coat layer.
6. according to claim 4 or 5 described car body finish paint coated structures, it is characterized in that described subfoundation is rust preventive coating and putty layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103938109A CN102896083A (en) | 2012-10-17 | 2012-10-17 | Bodywork finish coat coating method and bodywork finish coat coating structure |
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| CN2012103938109A CN102896083A (en) | 2012-10-17 | 2012-10-17 | Bodywork finish coat coating method and bodywork finish coat coating structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622906A (en) * | 2016-12-12 | 2017-05-10 | 中车唐山机车车辆有限公司 | Coating method for railway vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456012A (en) * | 2008-12-26 | 2009-06-17 | 唐山轨道客车有限责任公司 | Painting method for high-speed motor train set |
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- 2012-10-17 CN CN2012103938109A patent/CN102896083A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456012A (en) * | 2008-12-26 | 2009-06-17 | 唐山轨道客车有限责任公司 | Painting method for high-speed motor train set |
Non-Patent Citations (2)
| Title |
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| 《材料保护》 20060531 马孟度 "汽车修补漆在豪华大客车上的应用" 第68~70页 2、3、5、6 第39卷, 第5期 * |
| 马孟度: ""汽车修补漆在豪华大客车上的应用"", 《材料保护》, vol. 39, no. 5, 31 May 2006 (2006-05-31), pages 68 - 70 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622906A (en) * | 2016-12-12 | 2017-05-10 | 中车唐山机车车辆有限公司 | Coating method for railway vehicle |
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Application publication date: 20130130 |