CN215964597U - High-speed railway car box application layer structure - Google Patents
High-speed railway car box application layer structure Download PDFInfo
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- CN215964597U CN215964597U CN202121782262.XU CN202121782262U CN215964597U CN 215964597 U CN215964597 U CN 215964597U CN 202121782262 U CN202121782262 U CN 202121782262U CN 215964597 U CN215964597 U CN 215964597U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a high-speed rail car box body coating layer structure which comprises a high-speed rail car box body base layer, wherein a first putty layer is scraped on the high-speed rail car box body base layer, a first anti-corrosion primer layer is sprayed on the first putty layer, a second putty layer is scraped on the first anti-corrosion primer layer, a second anti-corrosion primer layer is sprayed on the second putty layer, an anti-corrosion intermediate paint layer is sprayed on the second anti-corrosion primer layer, a first base color paint layer is sprayed on the anti-corrosion intermediate paint layer, a second base color paint layer is sprayed on the first base color paint layer, a surface color paint layer is sprayed on the second base color paint layer, a first transparent paint layer is sprayed on the surface color paint layer, and a second transparent paint layer is sprayed on the first transparent paint layer. The coating layer of the utility model has the advantages of smooth structure, strong anti-corrosion protection effect, strong color paint layer firmness, difficult color explosion after long-term use of the color paint layer and good weather resistance.
Description
Technical Field
The utility model relates to the technical field of metal surface coating layers, in particular to a high-speed rail car box body coating layer structure.
Background
The high-speed rail car box body needs to have higher strength and rigidity, is usually made of aluminum alloy, magnesium alloy and special alloy, and has higher corrosion resistance and rust resistance requirements on a coating layer structure on the surface of the shell because the high-speed rail car box body needs to be blown by wind and rain frequently. In the prior art, when high-speed railway car box body is coated, a putty layer is usually scraped firstly, then a corrosion-resistant primer layer is sprayed, and then a color paint layer is sprayed on the corrosion-resistant primer layer.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a coating layer structure of a high-speed rail car box body, which has the advantages of smooth structure, strong anticorrosion protection effect, strong color paint layer firmness, difficult color explosion after long-term use of the color paint layer and good weather resistance.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a high-speed railway car case box coating layer structure comprises a high-speed railway car case box base layer, wherein a first putty layer is scraped on the high-speed railway car case box base layer, a first anti-corrosion primer layer is sprayed on the first putty layer, a second putty layer is scraped on the first anti-corrosion primer layer, a second anti-corrosion primer layer is sprayed on the second putty layer, an anti-corrosion middle paint layer is sprayed on the second anti-corrosion primer layer, a first base color paint layer is sprayed on the anti-corrosion middle paint layer, a second base color paint layer is sprayed on the first base color paint layer, a finish color paint layer is sprayed on the second base color paint layer, a first transparent paint layer is sprayed on the finish color paint layer, a second transparent paint layer is sprayed on the first transparent paint layer, the thickness of the first putty layer is 35-45 mu m, the thickness of the first anti-corrosion primer layer is 35-45 mu m, and the thickness of the second putty layer is 35-45 mu m, the thickness of the second anti-corrosion primer layer is 55-65 μm, the thickness of the anti-corrosion middle paint layer is 75-85 μm, the thickness of the first base color paint layer is 35-45 μm, the thickness of the second base color paint layer is 35-45 μm, the thickness of the finish paint layer is 40-50 μm, the thickness of the first transparent paint layer is 25-35 μm, and the thickness of the second transparent paint layer is 20-30 μm.
Preferably, the thickness of the first putty layer is 40 μm, the thickness of the first anti-corrosion primer layer is 40 μm, the thickness of the second putty layer is 40 μm, the thickness of the second anti-corrosion primer layer is 60 μm, the thickness of the anti-corrosion intermediate paint layer is 80 μm, the thickness of the first base color paint layer is 40 μm, the thickness of the second base color paint layer is 40 μm, the thickness of the top color paint layer is 45 μm, the thickness of the first transparent paint layer is 30 μm, and the thickness of the second transparent paint layer is 25 μm.
Preferably, the first putty layer and the second putty layer are respectively a water-based epoxy putty layer.
Preferably, the first and second anti-corrosion primer layers are each aqueous epoxy primer layers.
Preferably, the corrosion resistant mid-coat layer is a waterborne epoxy zinc rich mid-coat layer.
Preferably, the first base color paint layer and the second base color paint layer are respectively water-based polyurethane base color paint layers, the finish paint layer is a water-based polyurethane finish paint layer, and the first transparent paint layer and the second transparent paint layer are respectively water-based polyurethane transparent paint layers.
The utility model has the beneficial effects that: the high-speed rail car box body coating structure comprises a high-speed rail car box body base layer, a first putty layer, a first anti-corrosion primer layer, a second putty layer, a second anti-corrosion primer layer and an anti-corrosion middle paint layer, wherein the first putty layer is scraped on the high-speed rail car box body base layer; secondly, because the spraying has first base coat layer on the anticorrosion intermediate coat layer, the spraying has second base coat layer on the first base coat layer, the spraying has finish coat layer on the second base coat layer, the spraying has first clear coat layer on the finish coat layer, the spraying has second clear coat layer on the first clear coat layer, therefore, can guarantee good colour visual effect through two-layer base coat layer with one deck finish coat layer, the colour coat layer fastness is strong, the two-layer clear coat layer of rethread, can protect the colour coat layer to use the back fastness for a long time strong, the indexplosive colour, the weatherability is good.
Drawings
Fig. 1 is a hierarchical structure diagram of a coating layer structure of a high-speed rail car body.
In the figure: 1. a high-speed rail car box body base layer; 2. a first putty layer; 3. a first anti-corrosion primer layer; 4. a second putty layer; 5. a second anti-corrosion primer layer; 6. an anti-corrosion intermediate paint layer; 7. a first basecoat layer; 8. a second basecoat layer; 9. a finishing paint layer; 10. a first clear paint layer; 11. and a second transparent paint layer.
Detailed Description
The structural and operational principles of the present invention are explained in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model is a high-speed rail car body coating layer structure, which comprises a high-speed rail car body base layer 1, wherein a first putty layer 2 is sprayed on the high-speed rail car body base layer 1, a first anti-corrosion primer layer 3 is sprayed on the first putty layer 2, a second putty layer 4 is sprayed on the first anti-corrosion primer layer 3, a second anti-corrosion primer layer 5 is sprayed on the second putty layer 4, an anti-corrosion intermediate paint layer 6 is sprayed on the second anti-corrosion primer layer 5, a first base color paint layer 7 is sprayed on the anti-corrosion intermediate paint layer 6, a second base color paint layer 8 is sprayed on the first base color paint layer 7, a top color paint layer 9 is sprayed on the second base color paint layer 8, a first transparent paint layer 10 is sprayed on the top color paint layer 9, and a second transparent paint layer 11 is sprayed on the first transparent paint layer 10; the thickness of the first putty layer 2 is 35-45 μm, preferably 40 μm; the thickness of the first anti-corrosion primer layer 3 is 35 to 45 μm, preferably 40 μm; the thickness of the second putty layer 4 is 35-45 μm, preferably 40 μm; the thickness of the second anti-corrosion primer layer 5 is 55 to 65 μm, preferably 60 μm; the thickness of the anti-corrosion intermediate paint layer 6 is 75-85 μm, preferably 80 μm; the thickness of the first base paint layer 7 is 35-45 μm, preferably 40 μm; the thickness of the second base paint layer 8 is 35-45 μm, preferably 40 μm; the thickness of the finishing paint layer 9 is 40-50 μm, preferably 45 μm; the thickness of the first transparent paint layer 10 is 25-35 μm, preferably 30 μm; the thickness of the second layer of transparent lacquer 11 is 20-30 μm, preferably 25 μm.
The first putty layer 2 and the second putty layer 4 are respectively water-based epoxy putty layers. The formula of the water-based epoxy putty layer comprises water-based epoxy resin, deionized water, calcined kaolin, propylene glycol, heavy calcium carbonate, titanium dioxide, a defoaming agent, a thickening agent and a film forming agent, wherein the water-based epoxy putty layer comprises the following components in parts by weight: 38 parts of waterborne epoxy resin, 7 parts of deionized water, 24 parts of calcined kaolin, 2 parts of propylene glycol, 8 parts of heavy calcium carbonate, 10 parts of titanium dioxide, 1 part of defoaming agent, 0.5 part of thickening agent and 1 part of film forming agent.
The first and second anti-corrosion primer layers are each an aqueous epoxy primer layer. The formula of the water-based epoxy primer layer comprises water-based epoxy emulsion, deionized water, a water-based dispersing agent, a water-based defoaming agent, silicon dioxide, zinc tripolyphosphate, aluminum tripolyphosphate, natural barium sulfate, bentonite, titanium dioxide, yellow powder, an anti-flash rust agent, a base material wetting agent, a polyurethane thickener and a curing agent, wherein the water-based epoxy emulsion comprises the following components in parts by weight: 40 parts of water-based epoxy emulsion, 13.5 parts of deionized water, 0.5 part of water-based dispersant, 0.2 part of water-based defoamer, 0.6 part of silicon dioxide, 3 parts of zinc tripolyphosphate, 3 parts of aluminum tripolyphosphate, 20 parts of natural barium sulfate, 0.2 part of bentonite, 8 parts of titanium dioxide, 1.5 parts of yellow powder, 1.5 parts of flash rust inhibitor, 0.2 part of base material wetting agent, 1 part of polyurethane thickener and 10 parts of curing agent.
The anti-corrosion intermediate paint layer 6 is a water-based epoxy zinc-rich intermediate paint layer. The formula of the water-based epoxy zinc-rich intermediate paint layer comprises epoxy resin, a dispersing agent, polyamide wax, an anti-flash rust agent, ethylene glycol monobutyl ether, ethylene glycol methyl ether, a water-based dispersing agent, a curing agent, a silane coupling agent, silicon dioxide, wax powder, a water absorbent and national standard zinc powder, wherein the weight fractions are respectively as follows: 22.25 parts of epoxy resin, 0.2 part of dispersant, 0.2 part of polyamide wax, 0.5 part of flash rust inhibitor, 3 parts of ethylene glycol monobutyl ether, 2 parts of ethylene glycol methyl ether, 0.2 part of water-based dispersant, 3.8 parts of curing agent, 0.5 part of silane coupling agent, 0.5 part of silicon dioxide, 0.8 part of wax powder, 0.5 part of water absorbent and 80.5 parts of national standard zinc powder.
The first base color paint layer 7 and the second base color paint layer 8 are respectively aqueous polyurethane base color paint layers. The formula of the waterborne polyurethane base color paint layer comprises waterborne polyurethane, dipropylene glycol methyl ether, propylene glycol methyl ether, ethylene glycol butyl ether, a substrate wetting agent, a waterborne defoamer, deionized water, a polyurethane thickener, a leveling agent, titanium pigment and a waterborne curing agent, wherein the weight fractions are respectively as follows: 70 parts of waterborne polyurethane, 2 parts of dipropylene glycol methyl ether, 2 parts of propylene glycol methyl ether, 1 part of ethylene glycol butyl ether, 0.2 part of base material wetting agent, 0.1 part of waterborne defoamer, 24 parts of deionized water, 0.7 part of polyurethane thickener, 0.1 part of flatting agent, 50 parts of titanium dioxide and 15 parts of waterborne curing agent.
The surface color paint layer 9 is a water-based polyurethane surface color paint layer. The formula of the waterborne polyurethane top color paint layer comprises waterborne polyurethane, dipropylene glycol methyl ether, propylene glycol methyl ether, ethylene glycol butyl ether, a substrate wetting agent, a waterborne defoamer, deionized water, a polyurethane thickener, a leveling agent, titanium dioxide, a waterborne curing agent and carbon black, wherein the weight fractions are respectively as follows: 70 parts of waterborne polyurethane, 2 parts of dipropylene glycol methyl ether, 2 parts of propylene glycol methyl ether, 1 part of ethylene glycol butyl ether, 0.2 part of base material wetting agent, 0.1 part of waterborne defoamer, 24 parts of deionized water, 0.7 part of polyurethane thickener, 0.1 part of flatting agent, 50 parts of titanium dioxide, 15 parts of waterborne curing agent and 2.5 parts of carbon black.
The first transparent paint layer 10 and the second transparent paint layer 11 are respectively aqueous polyurethane transparent paint layers. The formula of the waterborne polyurethane transparent paint layer comprises waterborne polyurethane, dipropylene glycol methyl ether, propylene glycol methyl ether, ethylene glycol butyl ether, a substrate wetting agent, a waterborne defoaming agent, deionized water, a polyurethane thickener, a flatting agent and a waterborne curing agent, wherein the weight fractions are respectively as follows: 70 parts of waterborne polyurethane, 2 parts of dipropylene glycol methyl ether, 2 parts of propylene glycol methyl ether, 1 part of ethylene glycol butyl ether, 0.2 part of base material wetting agent, 0.1 part of waterborne defoamer, 24 parts of deionized water, 0.7 part of polyurethane thickener, 0.1 part of flatting agent and 10 parts of waterborne curing agent.
The construction process of the high-speed rail car box coating layer structure comprises the following steps:
s1, polishing and grinding a base layer of a high-speed rail car box body: oil stains, rust stains and stains on the materials are treated;
s2, scraping a first putty layer on a base layer of a box body of a high-speed rail car, filling up uneven plate surfaces, wherein the thickness of the plate is 40 mu m, and after drying for 4 hours, polishing with 400-mesh abrasive paper to be smooth and seamless;
s3, spraying a first anti-corrosion primer layer, wherein the color is national standard middle ash, the thickness of a dry film is 40 mu m, and drying for 24 hours at normal temperature;
s4, scraping a second putty layer on the first anti-corrosion primer layer, filling up the uneven board surface, wherein the thickness of the film is 40 mu m, and after drying for 4 hours, polishing by 400-mesh abrasive paper to be smooth and seamless;
s5, spraying a second anti-corrosion primer layer, wherein the color is national standard middle ash, the thickness of a dry film is 60 mu m, and drying for 24 hours at normal temperature;
s6, spraying an anti-corrosion intermediate paint layer, wherein the thickness of a dry film is 80 microns, and drying for 12 hours at normal temperature;
s7, spraying a first base color paint layer and a water-based polyurethane white paint, wherein the thickness of a dry film is 40 mu m, and drying for 24 hours at normal temperature;
s8, spraying a second base color paint layer and water-based polyurethane white paint, wherein the thickness of a dry film is 40 mu m, and drying for 24 hours at normal temperature;
s9, spraying a surface color paint layer, namely water-based polyurethane paint, wherein the thickness of a dry film is 45 mu m, and drying for 24 hours at normal temperature;
s10, spraying a transparent paint layer, namely water-based polyurethane transparent paint, wherein the thickness of a dry film is 30 micrometers, and drying for 24 hours at normal temperature;
s11, spraying a transparent paint layer, namely water-based polyurethane transparent paint, wherein the thickness of a dry film is 25 mu m, and drying for 48 hours at normal temperature.
After all the processes are completed, the rotary kiln is transferred to an environment with good ventilation and air humidity below 60% for 72 hours.
Sampling and checking the reliability of the product: 1) the adhesive force of a paint film reaches 0 grade; 2) the hardness of the paint film is detected, 2 hours, and the hardness of the paint film passes the Mitsubishi pencil test; 3) salt spray resistance test: 2000 hours, pass; 4) and (3) weather resistance test: 1000 hours, the color difference value is 0.7; 5) acid and alkali resistance test: 1 hour, pass; 6) and (3) normal temperature water bubble resistance test: 500 hours, pass; 7) and (3) engine oil resistance test: 1 hour, pass; 8) acid and alkali resistance test: 24 hours, pass; 9) and (3) high and low temperature testing: at plus 60 ℃ and minus 40 ℃, 4 hours are taken as one test cycle, and 8 test cycles are totally taken to pass.
The above description is only a preferred embodiment of the present invention, and all the minor modifications, equivalent changes and modifications made to the above embodiment according to the technical solution of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a high-speed railway car box application layer structure which characterized in that: the high-speed rail car box body base layer is characterized by comprising a high-speed rail car box body base layer, wherein a first putty layer is scraped on the high-speed rail car box body base layer, a first anti-corrosion primer layer is sprayed on the first putty layer, a second putty layer is scraped on the first anti-corrosion primer layer, a second anti-corrosion primer layer is sprayed on the second putty layer, an anti-corrosion middle paint layer is sprayed on the second anti-corrosion primer layer, a first base color paint layer is sprayed on the anti-corrosion middle paint layer, a second base color paint layer is sprayed on the first base color paint layer, a finish color paint layer is sprayed on the second base color paint layer, a first transparent paint layer is sprayed on the finish color paint layer, a second transparent paint layer is sprayed on the first transparent paint layer, the thickness of the first putty layer is 35-45 mu m, the thickness of the first anti-corrosion primer layer is 35-45 mu m, the thickness of the second putty layer is 35-45 mu m, and the thickness of the second anti-corrosion primer layer is 55-65 mu m, the thickness of the anti-corrosion middle paint layer is 75-85 μm, the thickness of the first bottom paint layer is 35-45 μm, the thickness of the second bottom paint layer is 35-45 μm, the thickness of the top paint layer is 40-50 μm, the thickness of the first transparent paint layer is 25-35 μm, and the thickness of the second transparent paint layer is 20-30 μm.
2. The high-speed rail car box coating layer structure as claimed in claim 1, wherein: the thickness of first putty layer is 40 μm, the thickness of first anticorrosion primer layer is 40 μm, the thickness of second putty layer is 40 μm, the thickness of second anticorrosion primer layer is 60 μm, the thickness of anticorrosion middle paint layer is 80 μm, the thickness of first base color paint layer is 40 μm, the thickness of second base color paint layer is 40 μm, the thickness of finish paint layer is 45 μm, the thickness of first clear paint layer is 30 μm, the thickness of second clear paint layer is 25 μm.
3. The high-speed rail car box coating layer structure as claimed in claim 1 or 2, wherein: the first putty layer and the second putty layer are respectively water-based epoxy putty layers.
4. The high-speed rail car box coating layer structure as claimed in claim 1 or 2, wherein: the first and second anti-corrosion primer layers are each a waterborne epoxy primer layer.
5. The high-speed rail car box coating layer structure as claimed in claim 1 or 2, wherein: the anti-corrosion intermediate coat layer is a water-based epoxy zinc-rich intermediate coat layer.
6. The high-speed rail car box coating layer structure as claimed in claim 1 or 2, wherein: the first bottom colored paint layer and the second bottom colored paint layer are respectively waterborne polyurethane bottom colored paint layers, the surface colored paint layer is a waterborne polyurethane surface colored paint layer, and the first transparent paint layer and the second transparent paint layer are respectively waterborne polyurethane transparent paint layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121782262.XU CN215964597U (en) | 2021-08-02 | 2021-08-02 | High-speed railway car box application layer structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121782262.XU CN215964597U (en) | 2021-08-02 | 2021-08-02 | High-speed railway car box application layer structure |
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| CN215964597U true CN215964597U (en) | 2022-03-08 |
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| CN202121782262.XU Active CN215964597U (en) | 2021-08-02 | 2021-08-02 | High-speed railway car box application layer structure |
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- 2021-08-02 CN CN202121782262.XU patent/CN215964597U/en active Active
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