CN104015436A - Front-rear-surface dual-coated matte panel and manufacturing method thereof - Google Patents
Front-rear-surface dual-coated matte panel and manufacturing method thereof Download PDFInfo
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- CN104015436A CN104015436A CN201410207077.6A CN201410207077A CN104015436A CN 104015436 A CN104015436 A CN 104015436A CN 201410207077 A CN201410207077 A CN 201410207077A CN 104015436 A CN104015436 A CN 104015436A
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Abstract
The invention provides a front-rear-surface dual-coated matte panel and a manufacturing method thereof. A composite steel plate comprises a PE (polyethylene) protection film, a matte surface paint coating, a bottom paint coating, a steel plate, a bottom paint coating and a matte surface paint coating which are sequentially distributed from top to bottom and compactly combined with one another. The preparation method of the front-rear-surface dual-coated matte composite steel plate comprises the following steps: coating polyurethane adhesive on the rear surface of the PE electronic film, and curing the polyurethane adhesive to form a first adhesive layer to obtain the PE film; pre-degreasing, degreasing and washing the steel plate, carrying out roll coating on the front surface and the rear surface of the steel plate with a potassium dichromate solution, and respectively forming a chemical treatment layer on the front surface and the rear surface of the steel plate; carrying out roll coating on the front surface and the rear surface of the steel plate with matte polyurethane resin paint, and curing and drying the matte polyurethane resin paint to respectively form a matte surface paint coating on the front surface and the rear surface. Compared with the ordinary composite steel plate, the front-rear-surface dual-coated matte panel produced through the method is better in corrosion resistance both on the front surface and the rear surface and higher in etching resistance.
Description
Technical field
The present invention relates to technical field of novel materials, be specially two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative.
Background technology
Common steel plate is mainly to coat overcoat or decorative layer at its front face, and these products are after making product or semi-finished product, the Performance Detection at the back side does not reach testing requirement, and the tone at these product back sides is more single, along with need to day by day changing of market, market is to tow sides clad steel plate of color coating all, and demand is increasing.
The two painting of positive and negative dull surface plate positive and negative is roller coat dull surface paints all, make the outward appearance of clad steel plate, than general clad steel plate more attractive, can be applied in more widely household electrical appliances and industrial circle.The two performances that are coated with dull surface plate of positive and negative have more advantage, and the reverse side of this clad steel plate is stronger than composite corrosion resistance in the past, the resistance to Du Genggao that portrays of positive and negative.
The application of the composite board of this " the two dull surface plates that are coated with of positive and negative " in industry and life is now more extensive, and automobile, refrigerator, washing machine, top-grade furniture, cooking apparatus, industry and civil buildings etc. all need to use.The two dull surface plates that are coated with of positive and negative that how can produce function admirable, are the problems that those skilled in the art studied all the time, and China's same industry is not also grasped completely to producing the two technology that are coated with dull surface plate of positive and negative.
Summary of the invention
Technical problem solved by the invention is to provide a kind of positive and negative two dull surface plate and manufacture methods thereof of being coated with, to solve the problem in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions: two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative; its clad steel plate comprises from top to down PE diaphragm, the first adhesive phase, the dull surface coat of paint, primary coat enamelled coating, chemical treatment layer, steel plate, chemical treatment layer, primary coat enamelled coating and the dull surface coat of paint that arrange and that be mutually closely linked successively; the two preparation methods that are coated with sub-photoreactivation steel plate of described positive and negative, comprise the following steps:
Step 1, after back side coating polyurethane binder of PE electron membrane solidifies, form the first adhesive phase, make PE film;
Step 2, by steel plate after pre-degreasing, degreasing and washing, to each roller coat potassium bichromate solution of steel plate front and back, steel plate positive and negative has all formed chemical treatment layer;
After step 3, the steel plate front and back roller coat Polyester resin lacquer making in step 2 solidify oven dry, positive and negative all forms primary coat enamelled coating;
After step 4, the sub-light Polyester resin lacquer of the steel plate front and back roller coat making in step 3 solidify oven dry, positive and negative all forms the dull surface coat of paint;
Step 5, in step 4, make clad steel plate face-side roll and be covered with the PE film that step 1 makes, make the two dull surface plates that are coated with of positive and negative;
Step 6, by the sub-photoreactivation steel plate of the positive and negative that makes in step 5, under 25 ℃ ± 2 ℃ laboratory environments, using 2H pencil to do pencil hardness test can not be without obvious cut at 750g pressure lower surface; The clad steel plate making is done to 180 ° of bendings, to 3M adhesive tape Lyse Adhesion for bending part, require surperficial paint film not fall.
Described the first adhesive phase is polyurethane binder, and the described dull surface coat of paint is Polyester resin lacquer, and described chemical treatment layer is potassium bichromate solution.
As preferably, in described step 1, the thickness of described the first adhesive phase is 0.025-0.03mm.
As preferably, in described step 2, the thickness of chemical treatment layer is 2 μ m-3 μ m;
As preferably, in described step 2, the material of steel plate should be hot-dip galvanizing sheet steel, and material hardness is 51D.
As preferably, in described step 3, the thickness of primary coat enamelled coating is 5 μ m-6 μ m;
As preferably, in described step 4, the thickness of the described front face coat of paint is 14 μ m-16 μ m, and the thickness of the back side face coat of paint is 8 μ m-10 μ m;
As preferably, in described step 4, the best curing temperature of the face coat of paint, needs steel billet temperature to reach 232 ℃-241 ℃.
Compare with public technology, there is following advantage in the present invention: the sub-photoreactivation steel plate of the two painting of the prepared positive and negative of process of the present invention, more common clad steel plate has better tow sides and has corrosion resistance well, the resistance to delineation Du Genggao of positive and negative, the present invention has filled up China at the two technological gaps that are coated with sub-photoreactivation steel plate field of positive and negative.
Accompanying drawing explanation
Fig. 1 is clad steel plate structural representation of the present invention.
In figure: 1-PE diaphragm, 2-the first adhesive phase, the 3-dull surface coat of paint, the positive primary coat enamelled coating of 4-, 5-chemical treatment layer, 6-steel plate, 8-back side primary coat enamelled coating.
The specific embodiment
In order to make technological means of the present invention, creation characteristic, workflow, using method reach object and effect is easy to understand, below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
As shown in Figure 1; two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative; its clad steel plate comprises from top to down PE diaphragm 1, the first adhesive phase 2, the dull surface coat of paint 3, positive primary coat enamelled coating 4, chemical treatment layer 5, steel plate 6, back side primary coat enamelled coating 8 that arrange and that be mutually closely linked successively; the two preparation methods that are coated with dull surface plate of positive and negative of the present embodiment, comprise the following steps:
Step 1, be coated with polyurethane binder form the first adhesive phase 2 in PE electron membrane 1, making thickness is the PE film of 0.038mm;
Step 2, by steel plate 6 through cleaning, after degreasing, degreasing is counted as 15pt, to steel plate front and back roller coat chemical treatment layer, forming thickness is the chemical treatment layer 5 of 2 μ m;
Step 3, on chemical treatment layer 5, after the oven dry of roller coat curable polyester resin, forming thickness is the positive primary coat enamelled coating 4 of 5 μ m, on the chemical treatment layer 5 of downside, after the oven dry of roller coat mylar paint curing, formation thickness is the back side primary coat enamelled coating 8 of 5 μ m;
Step 4, on positive primary coat enamelled coating 4, after the oven dry of roller coat mylar paint curing, forming thickness is the front dull surface coat of paint 3 of 16 μ m, and on primary coat enamelled coating 8, after the oven dry of roller coat mylar paint curing, formation thickness is the back side dull surface coat of paint of 8 μ m overleaf;
Step 5, overlays on the PE film roller making on the clad steel plate that step 4 makes, and roller covers pressure 0.45Mpa, makes the two dull surface plates that are coated with of positive and negative.
In the present embodiment: described the first adhesive phase 2 is polyurethane binder, and described the coat of paint 3 is Polyester resin lacquer.
Embodiment 2
As shown in Figure 1; two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative; its clad steel plate comprises from top to down PE diaphragm 1, the first adhesive phase 2, the dull surface coat of paint 3, positive primary coat enamelled coating 4, chemical treatment layer 5, steel plate 6, back side primary coat enamelled coating 8 that arrange and that be mutually closely linked successively; the two preparation methods that are coated with dull surface plate of positive and negative of the present embodiment, comprise the following steps:
Step 1, be coated with polyurethane binder form the first adhesive phase 2 in PE electron membrane 1, making thickness is the PE film of 0.038mm;
Step 2, by steel plate 6 through cleaning, after degreasing, degreasing is counted as 15pt, to steel plate front and back roller coat chemical treatment layer, forming thickness is the chemical treatment layer 5 of 2 μ m;
Step 3, on chemical treatment layer 5, after the oven dry of roller coat curable polyester resin, forming thickness is the positive primary coat enamelled coating 4 of 5 μ m, on the chemical treatment layer 7 of downside, after the oven dry of roller coat mylar paint curing, formation thickness is the back side primary coat enamelled coating 8 of 5 μ m;
Step 4, on positive primary coat enamelled coating 4, after the oven dry of roller coat mylar paint curing, forming thickness is the front dull surface coat of paint 3 of 18 μ m, and on primary coat enamelled coating 8, after the oven dry of roller coat mylar paint curing, formation thickness is the back side dull surface coat of paint of 10 μ m overleaf;
Step 5, overlays on the PE film roller making on the clad steel plate that step 4 makes, and roller covers pressure 0.6Mpa, makes the two dull surface plates that are coated with of positive and negative.
In the present embodiment: described the first adhesive phase 2 is polyurethane binder, and described the coat of paint 3 is Polyester resin lacquer.
Embodiment 3
As shown in Figure 1; two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative; its clad steel plate comprises from top to down PE diaphragm 1, the first adhesive phase 2, the dull surface coat of paint 3, positive primary coat enamelled coating 4, chemical treatment layer 5, steel plate 6, back side primary coat enamelled coating 8 that arrange and that be mutually closely linked successively; the two preparation methods that are coated with dull surface plate of positive and negative of the present embodiment, comprise the following steps:
Step 1, be coated with polyurethane binder form the first adhesive phase 2 in PE electron membrane 1, making thickness is the PE film of 0.04mm;
Step 2, by steel plate 6 through cleaning, after degreasing, degreasing is counted as 20pt, to steel plate front and back roller coat chemical treatment layer, forming thickness is the chemical treatment layer 5 of 3 μ m;
Step 3, on chemical treatment layer 5, after the oven dry of roller coat curable polyester resin, forming thickness is the positive primary coat enamelled coating 4 of 6 μ m, on the chemical treatment layer 7 of downside, after the oven dry of roller coat mylar paint curing, formation thickness is the back side primary coat enamelled coating 8 of 6 μ m;
Step 4, on positive primary coat enamelled coating 4, after the oven dry of roller coat mylar paint curing, forming thickness is the front dull surface coat of paint 3 of 18 μ m, and on primary coat enamelled coating 8, after the oven dry of roller coat mylar paint curing, formation thickness is the back side dull surface coat of paint of 10 μ m overleaf;
Step 5, overlays on the PE film roller making on the clad steel plate that step 4 makes, and roller covers pressure 0.6Mpa, makes the two dull surface plates that are coated with of positive and negative.
In the present embodiment: described the first adhesive phase 2 is polyurethane binder, and described the coat of paint 3 is Polyester resin lacquer.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. a positive and negative pair is coated with dull surface plate and manufacture methods thereof; it is characterized in that: its clad steel plate comprises from top to down PE diaphragm, the first adhesive phase, the dull surface coat of paint, primary coat enamelled coating, chemical treatment layer, steel plate, chemical treatment layer, primary coat enamelled coating and the dull surface coat of paint that arrange and that be mutually closely linked successively; the two preparation methods that are coated with sub-photoreactivation steel plate of described positive and negative, comprise the following steps:
Step 1, after back side coating polyurethane binder of PE electron membrane solidifies, form the first adhesive phase, make PE film;
Step 2, by steel plate after pre-degreasing, degreasing and washing, to each roller coat potassium bichromate solution of steel plate front and back, steel plate positive and negative has all formed chemical treatment layer;
After step 3, the steel plate front and back roller coat Polyester resin lacquer making in step 2 solidify oven dry, positive and negative all forms primary coat enamelled coating;
After step 4, the sub-light Polyester resin lacquer of the steel plate front and back roller coat making in step 3 solidify oven dry, positive and negative all forms the dull surface coat of paint;
Step 5, in step 4, make clad steel plate face-side roll and be covered with the PE film that step 1 makes, make the two dull surface plates that are coated with of positive and negative;
Step 6, by the sub-photoreactivation steel plate of the positive and negative that makes in step 5, under 25 ℃ ± 2 ℃ laboratory environments, using 2H pencil to do pencil hardness test can not be without obvious cut at 750g pressure lower surface; The clad steel plate making is done to 180 ° of bendings, to 3M adhesive tape Lyse Adhesion for bending part, require surperficial paint film not fall.
2. a kind of positive and negative according to claim 1 pair is coated with dull surface plate and manufacture methods thereof, it is characterized in that: described the first adhesive phase is polyurethane binder, the described dull surface coat of paint is Polyester resin lacquer, and described chemical treatment layer is potassium bichromate solution.
3. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 1, the thickness of described the first adhesive phase is 0.025-0.03mm.
4. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 2, the thickness of chemical treatment layer is 2 μ m-3 μ m.
5. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 2, the material of steel plate should be hot-dip galvanizing sheet steel, and material hardness is 51D.
6. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 3, the thickness of primary coat enamelled coating is 5 μ m-6 μ m.
7. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 4, the thickness of the described front face coat of paint is 14 μ m-16 μ m, and the thickness of the back side face coat of paint is 8 μ m-10 μ m.
8. two dull surface plate and the manufacture methods thereof of being coated with of a kind of positive and negative according to claim 1, is characterized in that: in described step 4, the best curing temperature of the face coat of paint, needs steel billet temperature to reach 232 ℃-241 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207077.6A CN104015436A (en) | 2014-05-15 | 2014-05-15 | Front-rear-surface dual-coated matte panel and manufacturing method thereof |
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| CN201410207077.6A CN104015436A (en) | 2014-05-15 | 2014-05-15 | Front-rear-surface dual-coated matte panel and manufacturing method thereof |
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| CN101654000A (en) * | 2008-08-21 | 2010-02-24 | 苏州禾盛新型材料股份有限公司 | Novel color-coated steel plate |
| CN202242160U (en) * | 2011-07-24 | 2012-05-30 | 珠海拾比佰彩图板股份有限公司 | Ultra-deep punching frosted Phase Change Material (PCM) composite steel plate for liquid crystal television back plate |
| CN102632672A (en) * | 2012-03-31 | 2012-08-15 | 马钢(集团)控股有限公司 | Color-coated plate and method for manufacturing same |
| CN102698949A (en) * | 2012-05-10 | 2012-10-03 | 合肥海尔特种钢板研制开发有限公司 | Preparation method of vertical texture colorful board as well as colorful board manufactured by using preparation method |
| CN103753885A (en) * | 2013-12-24 | 2014-04-30 | 烨辉（中国）科技材料有限公司 | High-warranty PVDF (polyvinylidene fluoride) color coated steel sheet |
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2014
- 2014-05-15 CN CN201410207077.6A patent/CN104015436A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654000A (en) * | 2008-08-21 | 2010-02-24 | 苏州禾盛新型材料股份有限公司 | Novel color-coated steel plate |
| CN202242160U (en) * | 2011-07-24 | 2012-05-30 | 珠海拾比佰彩图板股份有限公司 | Ultra-deep punching frosted Phase Change Material (PCM) composite steel plate for liquid crystal television back plate |
| CN102632672A (en) * | 2012-03-31 | 2012-08-15 | 马钢(集团)控股有限公司 | Color-coated plate and method for manufacturing same |
| CN102698949A (en) * | 2012-05-10 | 2012-10-03 | 合肥海尔特种钢板研制开发有限公司 | Preparation method of vertical texture colorful board as well as colorful board manufactured by using preparation method |
| CN103753885A (en) * | 2013-12-24 | 2014-04-30 | 烨辉（中国）科技材料有限公司 | High-warranty PVDF (polyvinylidene fluoride) color coated steel sheet |
Non-Patent Citations (3)
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| 刘鹤年等: "《建筑用钢》", 30 September 2009, article "彩色涂层钢板产品质量检验", pages: 401,405-406 * |
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Application publication date: 20140903 |