CN208810511U - A kind of rolling stock coating layer structure - Google Patents
A kind of rolling stock coating layer structure Download PDFInfo
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- CN208810511U CN208810511U CN201821218447.6U CN201821218447U CN208810511U CN 208810511 U CN208810511 U CN 208810511U CN 201821218447 U CN201821218447 U CN 201821218447U CN 208810511 U CN208810511 U CN 208810511U
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- paint
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Abstract
The utility model provides a kind of rolling stock coating layer structure, including vehicle matrix (1), primer coating (2), putty coating (3) and inter coat (4) and topcoat (5), the primer coating (2) formed by epoxy anti-corrosive primer is consolidated on the vehicle matrix (1), the putty coating (3) formed by unsaturated polyester resin putty is consolidated on the primer coating (2), the inter coat (4) formed by acroleic acid polyurethane intermediate layer paint is consolidated on the putty coating (3), the topcoat (5) formed by acrylic polyurethane finish paint is consolidated on the inter coat (4).The utility model can reduce or even prevent rolling stock and outer painter's putty blistering obscission occurs, to improve the outer paint quality of rolling stock, and then can efficiently control because the costs such as do over again, repair caused by paint quality problem outside rolling stock waste.
Description
Technical field
The utility model relates to rolling stock application techniques fields, more particularly, to a kind of rolling stock coating layer structure.
Background technique
Rolling stock painting design is a special system, which is rolling stock product in whole life cycle
Corrosion protection, decoration, mark and other specific functions are provided.
But the outer paint quality of current rolling stock, car body table caused by often falling off etc. because of bubbling, putty blistering
Look unfamiliar rust, paint fade etc. bad phenomenons, thus cause the painting operation of rolling stock to do over again or repair to coating, no
It only makes troubles to user, or even causes user to be discontented with, and also cause rolling stock and correspondingly increase due to coating is done over again, repaired
The paint cost of raw material, cost of labor and energy cost etc. has been added to waste.
Utility model content
Technical problem to be solved by the utility model is: in view of the problems of the existing technology, providing a kind of rolling stock
Coating layer structure improves the outer paint quality of rolling stock, reduces the costs waste such as do over again, repair.
The technical problems to be solved in the utility model is realized using following technical scheme: a kind of rolling stock coating layer knot
Structure, including vehicle matrix, primer coating, putty coating and inter coat and topcoat consolidate on the vehicle matrix
The primer coating formed by epoxy anti-corrosive primer, consolidation is formed greasy by unsaturated polyester resin putty on the primer coating
Sub- coating consolidates the inter coat formed by acroleic acid polyurethane intermediate layer paint, the inter coat on the putty coating
It is upper to consolidate the topcoat formed by acrylic polyurethane finish paint.
Preferably, the topcoat includes the acroleic acid polyurethane background color paint layer and third formed by acroleic acid polyurethane
Olefin(e) acid polyurethane lacquer layer, the acroleic acid polyurethane background color paint layer and inter coat consolidate, the acroleic acid polyurethane
Layer of varnish and acroleic acid polyurethane background color paint layer consolidate.
Preferably, the thickness of dry film of the acroleic acid polyurethane background color paint layer is 25 μm -40 μm.
Preferably, the thickness of dry film of the acroleic acid polyurethane layer of varnish is 40 μm -60 μm.
Preferably, the thickness of the topcoat is more than or equal to 90 μm.
Preferably, the average dry film thickness of the primer coating on the vehicle matrix Side fascia is more than or equal to 60 μm.
Preferably, the average dry film thickness of the primer coating on the outside of the vehicle matrix roof is more than or equal to 90 μm.
Preferably, the thickness of dry film of the putty coating is no more than 4mm.
Preferably, the thickness of dry film of the inter coat is 20 μm -60 μm.
Compared with prior art, the utility model has the beneficial effects that since putty coating is between primer coating and centre
Between coating, putty coating adhesive force is strong, drying time is fast, also, it can assemble fever and contraction during curing and drying,
Therefore, it is possible to reduce or even prevent rolling stock and outer painter's putty blistering obscission occurs, it improves and is painted outside rolling stock
Quality, meanwhile, also effectively save the costs such as do over again, repair because of caused by paint quality problem outside rolling stock.
Detailed description of the invention
Fig. 1 is a kind of organigram of rolling stock coating layer structure of the utility model.
Marked in the figure: 1- vehicle matrix, 2- primer coating, 3- putty coating, 4- inter coat, 5- topcoat.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to the accompanying drawing and specifically
The utility model is described in detail in embodiment.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model is not used to limit the utility model.
Rolling stock coating layer structure as shown in Figure 1, including vehicle matrix 1, primer coating 2, putty coating 3 and in
Between coating 4 and topcoat 5, the primer coating 2 that is formed by epoxy anti-corrosive primer, the priming paint are consolidated on vehicle matrix 1
The putty coating 3 formed by unsaturated polyester resin putty is consolidated on coating 2, consolidation is by the poly- ammonia of acrylic acid on putty coating 3
The inter coat 4 that ester intermediate layer paint is formed consolidates the topcoat formed by acrylic polyurethane finish paint on the inter coat 4
5。
For above-mentioned rolling stock coating layer structure, can be formed by following coating process, concrete operation step is:
Step 1, the formation of primer coating 2.Specifically:
(1), firstly, carrying out the prune jobs such as ball blast, derusting, polishing to 1 surface of vehicle matrix, side bar, door are thoroughly removed
The dirts such as greasy dirt, rusty stain, oxide skin, rust, dust impurity existing for the folders such as frame rust and surface.
Wherein, ball blast is usually to use shot, and diameter is preferably 1mm-1.5mm.It is docked using sanding machine or abrasive machine
Oral area position is polished, and makes that interface position is ramp-like and transition is round and smooth.For beam each under vehicle, hook door, lower-edge beam, ripple
Rust in the weld seams such as plate, draw beam and sleeper beam, crack gap can be shown in metallic matrix using hand cleaning polishing.Then, using high pressure
Air hose and special diluting agent remove 1 surfaces externally and internally greasy dirt of vehicle matrix.It is uneven for the surfaces of wall of vehicle matrix 1 in 1m
When in length more than 5mm, it is necessary within adjusting to 3mm.
(2), after having cleared up vehicle matrix 1, the brushing shop primer in 4 hours.It should be noted that in vehicle matrix
1 steel construction digging cuts the welding position after changing, and Ying Xianyong angle grinder polishes flat crator, reuses wire brush for weld
Oxide skin, slag inclusion and folder rust polishing it is clean, heat affected area polish metal true qualities with wire brush, and digging plate surface temperature is cold
It but, can brushing anti-corrosive primer to after 40 DEG C or less.
In general, being to spray epoxy anti-rust paint to outer surface in vehicle matrix 1 using high-pressure airless spraying gun.When spraying, choosing
Spray gun appropriate is selected, for example, when spraying car anti-corrosive primer, Ying Xuanyong high pressure airless spray equipment；Meanwhile strict control spray gun with
The distance of workpiece, wind regime wind pressure are not less than 0.6Mpa, and spray gun is 500mm~700mm with vehicle matrix 1 at a distance from, and it is uniform to walk rifle,
Its speed control is in 0.4~0.6m/s.In addition, walking rifle mode must not be arc or inclination.
After having sprayed, drying for 24 hours, that is, forms anti-corrosive primer layer.It, can be using paint film thickness gauge, attachment in the process
Power instrument (cross hatch device) detects anti-corrosive primer layer, and the average dry film thickness of 1 inside and outside wall board anti-corrosive primer layer of vehicle matrix >=
60 μm, average dry film thickness >=90 μm of anti-corrosive primer layer on the outside of roof, 0-1 grades of adhesive force.
(3), sealant is applied to the gap on vehicle matrix 1.Mainly, the car to vehicle matrix 1 and vehicle lower surface institute
There are section weldering, overlapping the slot to be sealed with sealant, mouth also appropriate encapsulating under column.
Step 2, the formation of putty coating 3.
1 coating of vehicle matrix putty uses unsaturated polyester resin putty, and main function is to ground pit, needle contracting
The defects of hole, crackle and small weld seam, is filled and led up and is modified, to meet the smooth, smooth of surface of bottom material before finishing coat.Specifically:
(1), it is polished comprehensively with 80 mesh emery cloths primer coating 2 using electric grinding machine, is attached to thoroughly removing
Greasy dirt, slag particle, sundries and the corrosion on 2 surface of primer coating.
(2), unsaturated polyester resin putty is deployed.Using blender by unsaturated polyester resin putty and complete curing agent
Stir according to a certain percentage, ratio is usually: summer be 100:1.5-100:2 (weight ratio), winter 100:
2-100:3 (weight ratio).It when operation, should stir, it is consistent to reach tone, and range estimation is without obvious jaundice and blushing.
(3), spot putting processing is carried out to 1 weld seam of vehicle matrix and obvious pit.Local pit is less than greater than 3mm
5mm's, Ying Caiyong fiber unsaturated polyester resin putty is filled up, and putty painting scrapes a thickness no more than 1mm.Due to vehicle
In maintenance process, surface irregularity not can guarantee 100% control within critical field 3-5mm, therefore adhesive force can be selected more
Excellent, primary painting scrapes fiber unsaturated polyester resin putty of the thickness within 2mm to make up weld seam and pit.
(4), after spot putting is dry, dust is removed on spot putting surface of polishing.Mouth, connector holder etc. are descended to rain eaves
Arc surface, can using it is soft scrape cutter painting scrape it is smooth, between two layers of putty using it is vertical and horizontal intersect to apply scrape.
(5), every 4h dry at 20 DEG C of putty after dry, is polished, guarantee is beaten comprehensively using sander configuration 80P sand paper
Polish it is whole, without obvious tool marks, it is smooth etc. without Sand paper for polishing trace, circular arc transition.Putty coating 3 is formd as a result,.It can adopt
Putty coating 3 is detected with paint film thickness gauge, the thickness of dry film of the putty coating 3 is preferably no more than 4mm.
Step 3, the formation of inter coat 4.Specifically:
(1), inter coat 4 is using acroleic acid polyurethane intermediate layer paint.When carrying out coating allotment, before opening bucket, by third
Olefin(e) acid polyurethane intermediate layer paint Raw material pail carrys out returning bucket twice, opens bung, is stirred acroleic acid polyurethane intermediate layer paint with blender
Uniformly, precipitating is not stayed at bucket bottom.Before allotment, acroleic acid polyurethane intermediate layer paint is filtered using 80~120 mesh copper strainers.By than
Example (5:1, weight ratio) adds complete curing agent, 5%~15% diluent, uniform stirring about 1min is added, and carry out returning
Bucket twice, until stirring, it is consistent to reach paint vehicle tone.It can be using qualified -4 glasss of viscosimeters of painting of metering to allotment
Rear coating carries out viscosimetric analysis, and viscosity when winter should reach 20~22s, and viscosity when summer should reach 23~25s.
(2), after clearing up putty coating 3, propylene can be sprayed using high-pressure airless spraying gun to 3 outer surface of putty coating
Sour polyurethane intermediate layer paint, re-dry is for 24 hours.Inter coat 4 is formed as a result,.It, can be using paint film thickness gauge to centre in the process
Coating 4 is detected, and thickness of dry film is preferably between 20 μm -60 μm.
Being formed by inter coat 4 has the function of forming a connecting link, and can not only make up the table that putty coating 3 is not yet filled and led up
Planar defect, blade coating larger area defect, fill and lead up polishing putty coating there are emery cloth or sand paper trace, moreover it is possible to make up putty painting
The defects of 3 thickness of layer are insufficient.
Step 4, the formation of topcoat 5.The topcoat 5 is formed using acrylic polyurethane finish paint, thickness
Typically larger than or equal to 90 μm.Preferably, the topcoat 5 includes that acroleic acid polyurethane background color paint layer and acrylic acid are poly-
Urethane layer of varnish, specific operational method is:
(1), allotment paint, allotment of the method with coating used in above-mentioned inter coat 4.
(2), it using electrostatic sprayer, is sprayed comprehensively twice on inter coat 4, is formed and mutually consolidated with inter coat 4
Acroleic acid polyurethane background color paint layer.In general, returning to first pass spraying initial position after first pass spraying and carrying out second
All over spraying.In spraying, the distance between spray gun and inter coat 4 are 500~700mm, and it is uniform to walk rifle, speed for 0.4~
0.6m/s.After spraying, surface falls without stream, is uniform without bottom drain, paint film.After being dried, it is formed by propylene
The thickness of dry film of sour polyurethane background color paint layer is preferably between 25 μm -40 μm.
(3), acroleic acid polyurethane varnish, formation and propylene are sprayed on the acroleic acid polyurethane background color paint layer formed
The acroleic acid polyurethane layer of varnish that sour polyurethane background color paint layer mutually consolidates, spraying method is the same as above-mentioned acroleic acid polyurethane bottom
Colored paint layer.
(4), it after the completion of acroleic acid polyurethane layer of varnish, is dried, is formed by acroleic acid polyurethane varnish
The thickness of dry film of layer is preferably between 40 μm -60 μm.In general, after the completion of acroleic acid polyurethane layer of varnish varnish, through 2h table
After dry, paint locker can be just poured out.When having ready conditions, force drying can also be carried out to acroleic acid polyurethane layer of varnish,
Force drying condition is 40-60 DEG C, drying time 1-2h.
(5), color separation and label.That is, scheming requirement by art designing carries out scribing line color separation to car body, it is desirable that color separation line is clear, it is straight,
Neatly, smooth at arc transition naturally, color separation adhesive tape paste patch it is closely knit.
In above-mentioned rolling stock coating layer structure, putty coating 3 is and greasy between primer coating 2 and inter coat 4
The adhesive force of sub- coating 3 is strong, drying time is fast, and fever and contraction can be assembled during curing and drying, reduces and even prevents
Rolling stock occurs outer painter's putty and blisters obscission, and improves rolling stock paint quality outside, thus control do over again,
The costs waste such as the paint cost of raw material, cost of labor and energy cost caused by maintenance.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, and should refer to
Out, any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (9)
1. a kind of rolling stock coating layer structure, including vehicle matrix (1), it is characterised in that: further include primer coating (2), greasy
Sub- coating (3) and inter coat (4) and topcoat (5), consolidation is by epoxy anti-corrosive primer shape on the vehicle matrix (1)
At primer coating (2), the putty coating (3) formed by unsaturated polyester resin putty is consolidated on the primer coating (2),
The inter coat (4) formed by acroleic acid polyurethane intermediate layer paint, the inter coat are consolidated on the putty coating (3)
(4) topcoat (5) formed by acrylic polyurethane finish paint is consolidated on.
2. a kind of rolling stock coating layer structure according to claim 1, it is characterised in that: the topcoat (5)
Including the acroleic acid polyurethane background color paint layer and acroleic acid polyurethane layer of varnish formed by acroleic acid polyurethane, the acrylic acid
Polyurethane background color paint layer and inter coat (4) consolidate, the acroleic acid polyurethane layer of varnish and acroleic acid polyurethane base coat
Layer consolidation.
3. a kind of rolling stock coating layer structure according to claim 2, it is characterised in that: the acroleic acid polyurethane bottom
The thickness of dry film of colored paint layer is 25 μm -40 μm.
4. a kind of rolling stock coating layer structure according to claim 2, it is characterised in that: the acroleic acid polyurethane is clear
The thickness of dry film of paint layer is 40 μm -60 μm.
5. a kind of rolling stock coating layer structure according to claim 1-4, it is characterised in that: the finishing coat
The thickness of coating (5) is more than or equal to 90 μm.
6. a kind of rolling stock coating layer structure according to claim 1-4, it is characterised in that: the vehicle base
The average dry film thickness of primer coating (2) on body (1) Side fascia is more than or equal to 60 μm.
7. a kind of rolling stock coating layer structure according to claim 1-4, it is characterised in that: the vehicle base
The average dry film thickness of primer coating (2) on the outside of body (1) roof is more than or equal to 90 μm.
8. a kind of rolling stock coating layer structure according to claim 1-4, it is characterised in that: the putty applies
The thickness of dry film of layer (3) is no more than 4mm.
9. a kind of rolling stock coating layer structure according to claim 1-4, it is characterised in that: the intermediate painting
The thickness of dry film of layer (4) is 20 μm -60 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821218447.6U CN208810511U (en) | 2018-07-31 | 2018-07-31 | A kind of rolling stock coating layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821218447.6U CN208810511U (en) | 2018-07-31 | 2018-07-31 | A kind of rolling stock coating layer structure |
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| Publication Number | Publication Date |
|---|---|
| CN208810511U true CN208810511U (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821218447.6U Active CN208810511U (en) | 2018-07-31 | 2018-07-31 | A kind of rolling stock coating layer structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906554A (en) * | 2018-07-31 | 2018-11-30 | 中车成都机车车辆有限公司 | A kind of rolling stock coating layer structure and coating process |
| CN112375420A (en) * | 2020-11-11 | 2021-02-19 | 苏州金辂房车有限公司 | Waterproof sealing process method for motor home |
-
2018
- 2018-07-31 CN CN201821218447.6U patent/CN208810511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906554A (en) * | 2018-07-31 | 2018-11-30 | 中车成都机车车辆有限公司 | A kind of rolling stock coating layer structure and coating process |
| CN112375420A (en) * | 2020-11-11 | 2021-02-19 | 苏州金辂房车有限公司 | Waterproof sealing process method for motor home |
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