CN110893395A - PCM color-coated steel plate with frosted surface and processing method thereof - Google Patents
PCM color-coated steel plate with frosted surface and processing method thereof Download PDFInfo
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- CN110893395A CN110893395A CN201911366936.5A CN201911366936A CN110893395A CN 110893395 A CN110893395 A CN 110893395A CN 201911366936 A CN201911366936 A CN 201911366936A CN 110893395 A CN110893395 A CN 110893395A
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- coating
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- passivation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones
- B05D5/066—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones achieved by multilayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention relates to the technical field of frosted surfaces, in particular to a PCM color coated steel plate with a frosted surface, which comprises a color coated plate, wherein a first passivation layer is arranged on the lower surface of the color coated plate, a back paint layer is sprayed on the outer side of the first passivation layer, a second passivation layer is arranged on the upper surface of the color coated plate, a weather-resistant primer layer is arranged on the upper surface of the second passivation layer, and a color finish paint layer is sprayed on the upper surface of the weather-resistant primer layer. The invention has the physical properties of high temperature resistance, chemical resistance and the like, can improve the scratch resistance of the coating and reduce the damage in the using process by adding the colored finish paint layer, has better use value, meets the national green and environmental protection requirements, does not contain heavy metal and meets the ROHS standard of the European Union.
Description
Technical Field
The invention relates to the technical field of frosted surfaces, in particular to a PCM color coated steel plate with a frosted surface and a processing method thereof.
Background
At present, the color coated steel plate is more popular in the household appliance industry, such as the shells of small household appliances, electric rice cookers and hot water kettles, the shells of refrigerator door plates of large household appliances and the like, and the color coated steel plate is easy to scratch the surface and has poor abrasion resistance.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a PCM color coated steel plate with a frosted surface and a processing method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a dull polish surface PCM color coating steel sheet, includes the colored coating board, colored coating board lower surface is provided with first passivation layer, and the spraying of first passivation layer outside has a back of the body lacquer layer, colored coating board upper surface is provided with the second passivation layer, and second passivation layer upper surface is provided with the priming paint layer of nai time, the spraying of the priming paint layer upper surface of nai time has colored finish paint layer.
Preferably, the color coated sheet is a 0.5mm galvanized sheet.
The invention also provides a processing method of the PCM color coated steel plate with the frosted surface, which comprises the following specific steps:
s1, unwinding of the base material: selecting two uncoilers, specifically a first uncoiler and a second uncoiler, and continuously riveting the first uncoiler and the second uncoiler to ensure continuous strip production;
s2, pretreatment: the method comprises the following specific steps:
A. wherein, degreasing fluid is added into the pre-degreasing tank and the main degreasing tank, stains on the front and back surfaces of the galvanized plate are cleaned by using a brush roller, the concentration of the degreasing tank fluid is 6-15pt, the water temperature of the degreasing tank is 45-65 ℃, and the galvanized plate enters the main degreasing after being pre-degreased and cleaned and being squeezed by a water squeezing roller;
B. after the main degreasing and cleaning is finished, squeezing the water squeezing roller to dry, then washing, wherein the first washing, the second washing and the third washing are pure water washing and cleaning, and the surface of the galvanized plate is washed by degreasing liquid again, and the temperature of a washing tank is 45-65 ℃;
C. after the galvanized sheet is pretreated and cleaned, squeezed and dried, blown and dried again by hot air, and then enters a passivation process;
s3, passivation: the passivation adopts a roll coating mode, two groups of coating rolls are adopted, one group of coating rolls are used for coating the front surface of the galvanized sheet, the other group of coating rolls are used for coating the back surface of the galvanized sheet, the environment-friendly chromium-free passivation solution is uniformly coated to the front surface and the back surface of the galvanized sheet by roll, the consumption of the passivation solution is 0.8-1.5 g/square meter, the concentration of the passivation solution is controlled at 25-50%, and the galvanized sheet is subjected to a hot air baking process after the;
s4, baking: carrying out hot air baking after roller coating of the environment-friendly chromium-free passivation solution, wherein the baking temperature is 224-;
s5, performing double-sided roll coating of weather-resistant primer and weather-resistant back paint: the colored self-adhesive chromium-free primer and the colored back paint are uniformly coated on the front and back surfaces of the galvanized sheet by a reverse coating roller coating mode, and the thickness of a dry film layer is 5 +/-1 mu m after baking in an oven;
s6, roll coating a fluorocarbon finish on a single surface: the colored self-adhesive color finish paint is added with special particle Powder (PMMA) components, the paint is uniformly coated on the front and back surfaces of the galvanized plate in a reverse coating roller coating mode with the coating speed of 40-80m/min, and the thickness of a dry film layer is 16 +/-2 mu m after baking in an oven;
s7, baking: the baking temperature of the oven is 224-232 ℃, and the surface temperature of the galvanized plate is kept at 216-232 ℃ when the galvanized plate is taken out of the oven;
s8, cooling: cooling by cold water spraying, and then inspecting;
s9, checking: and detecting according to actual requirements of different customers, and after the detection is qualified, winding the composite finished coil material in a winding machine to obtain the novel roller-coated metal plate.
The invention provides a PCM color coated steel plate with a frosted surface and a processing method thereof, and the PCM color coated steel plate has the beneficial effects that: the frosted surface PCM color coated steel plate uses a tinned substrate (DC 01-DC 04 hot rolled coil), the frosted polyester finish paint is prepared by adding special particle Powder (PMMA) on the basis of the original household appliance paint to ensure that the surface of the coating has a special texture effect, the particles have physical properties of high temperature resistance, chemical resistance and the like, the scratch resistance of the coating can be improved after the frosted surface PCM color coated steel plate is added, the damage in the using process is reduced, the frosted surface PCM color coated steel plate has better use value, the national green and environment-friendly requirements are met, no heavy metal is contained, and the European Union ROHS standard is met.
Drawings
Fig. 1 is a schematic structural diagram of a PCM color-coated steel plate with a frosted surface according to the present invention.
In the figure: the coating comprises a color coating plate 1, a first passivation layer 2, a second passivation layer 3, a back paint layer 4, a weather-resistant primer layer 5 and a color finish paint layer 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a dull polish surface PCM color coating steel plate, including color coating board 1, color coating board 1 specifically is 0.5mm galvanized sheet, 1 lower surface of color coating board is provided with first passivation layer 2, and the 2 outside spraying of first passivation layer has back paint layer 4, 1 upper surface of color coating board is provided with second passivation layer 3, and 3 upper surfaces of second passivation layer are provided with resistant priming paint layer 5, resistant 5 upper surface spraying of priming paint layer has colored finish paint layer 6.
The invention also provides a processing method of the PCM color coated steel plate with the frosted surface, which comprises the following specific steps:
s1, unwinding of the base material: selecting two uncoilers, specifically a first uncoiler and a second uncoiler, and continuously riveting the first uncoiler and the second uncoiler to ensure continuous strip production;
s2, pretreatment: the method comprises the following specific steps:
A. wherein, degreasing fluid is added into the pre-degreasing tank and the main degreasing tank, stains on the front and back surfaces of the galvanized plate are cleaned by using a brush roller, the concentration of the degreasing tank fluid is 6-15pt, the water temperature of the degreasing tank is 45-65 ℃, and the galvanized plate enters the main degreasing after being pre-degreased and cleaned and being squeezed by a water squeezing roller;
B. after the main degreasing and cleaning is finished, squeezing the water squeezing roller to dry, then washing, wherein the first washing, the second washing and the third washing are pure water washing and cleaning, and the surface of the galvanized plate is washed by degreasing liquid again, and the temperature of a washing tank is 45-65 ℃;
C. after the galvanized sheet is pretreated and cleaned, squeezed and dried, blown and dried again by hot air, and then enters a passivation process;
s3, passivation: the passivation adopts a roll coating mode, two groups of coating rolls are adopted, one group of coating rolls are used for coating the front surface of the galvanized sheet, the other group of coating rolls are used for coating the back surface of the galvanized sheet, the environment-friendly chromium-free passivation solution is uniformly coated to the front surface and the back surface of the galvanized sheet by roll, the consumption of the passivation solution is 0.8-1.5 g/square meter, the concentration of the passivation solution is controlled at 25-50%, and the galvanized sheet is subjected to a hot air baking process after the;
s4, baking: carrying out hot air baking after roller coating of the environment-friendly chromium-free passivation solution, wherein the baking temperature is 224-;
s5, performing double-sided roll coating of weather-resistant primer and weather-resistant back paint: the colored self-adhesive chromium-free primer and the colored back paint are uniformly coated on the front and back surfaces of the galvanized sheet by a reverse coating roller coating mode, and the thickness of a dry film layer is 5 +/-1 mu m after baking in an oven;
s6, roll coating a fluorocarbon finish on a single surface: the colored self-adhesive color finish paint is added with special particle Powder (PMMA) components, the paint is uniformly coated on the front and back surfaces of the galvanized plate in a reverse coating roller coating mode with the coating speed of 40-80m/min, and the thickness of a dry film layer is 16 +/-2 mu m after baking in an oven;
s7, baking: the baking temperature of the oven is 224-232 ℃, and the surface temperature of the galvanized plate is kept at 216-232 ℃ when the galvanized plate is taken out of the oven;
s8, cooling: cooling by cold water spraying, and then inspecting;
s9, checking: and detecting according to actual requirements of different customers, and after the detection is qualified, winding the composite finished coil material in a winding machine to obtain the novel roller-coated metal plate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The utility model provides a dull polish surface PCM color coating steel sheet, includes colored coating board (1), its characterized in that: the lower surface of the colored coating plate (1) is provided with a first passivation layer (2), a back paint layer (4) is sprayed on the outer side of the first passivation layer (2), the upper surface of the colored coating plate (1) is provided with a second passivation layer (3), the upper surface of the second passivation layer (3) is provided with a weather-resistant primer layer (5), and a colored finish paint layer (6) is sprayed on the upper surface of the weather-resistant primer layer (5).
2. A frosted surface PCM color coated steel sheet according to claim 1, wherein the color coated sheet (1) is in particular a 0.5mm galvanized sheet.
3. A method for processing a PCM color coated steel plate with a frosted surface according to any one of claims 1 to 2, comprising the following steps:
s1, unwinding of the base material: selecting two uncoilers, specifically a first uncoiler and a second uncoiler, and continuously riveting the first uncoiler and the second uncoiler to ensure continuous strip production;
s2, pretreatment: the method comprises the following specific steps:
A. wherein, degreasing fluid is added into the pre-degreasing tank and the main degreasing tank, stains on the front and back surfaces of the galvanized plate are cleaned by using a brush roller, the concentration of the degreasing tank fluid is 6-15pt, the water temperature of the degreasing tank is 45-65 ℃, and the galvanized plate enters the main degreasing after being pre-degreased and cleaned and being squeezed by a water squeezing roller;
B. after the main degreasing and cleaning is finished, squeezing the water squeezing roller to dry, then washing, wherein the first washing, the second washing and the third washing are pure water washing and cleaning, and the surface of the galvanized plate is washed by degreasing liquid again, and the temperature of a washing tank is 45-65 ℃;
C. after the galvanized sheet is pretreated and cleaned, squeezed and dried, blown and dried again by hot air, and then enters a passivation process;
s3, passivation: the passivation adopts a roll coating mode, two groups of coating rolls are adopted, one group of coating rolls are used for coating the front surface of the galvanized sheet, the other group of coating rolls are used for coating the back surface of the galvanized sheet, the environment-friendly chromium-free passivation solution is uniformly coated to the front surface and the back surface of the galvanized sheet by roll, the consumption of the passivation solution is 0.8-1.5 g/square meter, the concentration of the passivation solution is controlled at 25-50%, and the galvanized sheet is subjected to a hot air baking process after the;
s4, baking: carrying out hot air baking after roller coating of the environment-friendly chromium-free passivation solution, wherein the baking temperature is 224-;
s5, performing double-sided roll coating of weather-resistant primer and weather-resistant back paint: the colored self-adhesive chromium-free primer and the colored back paint are uniformly coated on the front and back surfaces of the galvanized sheet by a reverse coating roller coating mode, and the thickness of a dry film layer is 5 +/-1 mu m after baking in an oven;
s6, roll coating a fluorocarbon finish on a single surface: the colored self-adhesive color finish paint is added with special particle Powder (PMMA) components, the paint is uniformly coated on the front and back surfaces of the galvanized plate in a reverse coating roller coating mode with the coating speed of 40-80m/min, and the thickness of a dry film layer is 16 +/-2 mu m after baking in an oven;
s7, baking: the baking temperature of the oven is 224-232 ℃, and the surface temperature of the galvanized plate is kept at 216-232 ℃ when the galvanized plate is taken out of the oven;
s8, cooling: cooling by cold water spraying, and then inspecting;
s9, checking: and detecting according to actual requirements of different customers, and after the detection is qualified, winding the composite finished coil material in a winding machine to obtain the novel roller-coated metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366936.5A CN110893395A (en) | 2019-12-26 | 2019-12-26 | PCM color-coated steel plate with frosted surface and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366936.5A CN110893395A (en) | 2019-12-26 | 2019-12-26 | PCM color-coated steel plate with frosted surface and processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110893395A true CN110893395A (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911366936.5A Withdrawn CN110893395A (en) | 2019-12-26 | 2019-12-26 | PCM color-coated steel plate with frosted surface and processing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604248A (en) * | 2020-06-17 | 2020-09-01 | 江苏倍科装饰材料科技有限公司 | Production process of color-coated aluminum coil |
| CN112626512A (en) * | 2020-11-28 | 2021-04-09 | 武汉建大威坤钢结构工程股份有限公司 | Processing technology of color steel plate |
| CN113954458A (en) * | 2021-10-26 | 2022-01-21 | 苏州新颖新材料科技股份有限公司 | Environment-friendly PCM color precoating plate and preparation method thereof |
| CN114833053A (en) * | 2022-06-07 | 2022-08-02 | 武汉钢铁有限公司 | Color-coated sheet and preparation method thereof |
-
2019
- 2019-12-26 CN CN201911366936.5A patent/CN110893395A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604248A (en) * | 2020-06-17 | 2020-09-01 | 江苏倍科装饰材料科技有限公司 | Production process of color-coated aluminum coil |
| CN112626512A (en) * | 2020-11-28 | 2021-04-09 | 武汉建大威坤钢结构工程股份有限公司 | Processing technology of color steel plate |
| CN112626512B (en) * | 2020-11-28 | 2023-07-21 | 武汉建大威坤钢结构工程股份有限公司 | Processing technology of color steel plate |
| CN113954458A (en) * | 2021-10-26 | 2022-01-21 | 苏州新颖新材料科技股份有限公司 | Environment-friendly PCM color precoating plate and preparation method thereof |
| CN114833053A (en) * | 2022-06-07 | 2022-08-02 | 武汉钢铁有限公司 | Color-coated sheet and preparation method thereof |
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Application publication date: 20200320 |