CN110586430A - PCM color coated sheet with color changing effect - Google Patents
PCM color coated sheet with color changing effect Download PDFInfo
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- CN110586430A CN110586430A CN201910875876.3A CN201910875876A CN110586430A CN 110586430 A CN110586430 A CN 110586430A CN 201910875876 A CN201910875876 A CN 201910875876A CN 110586430 A CN110586430 A CN 110586430A
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
- B05D3/007—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
- B05D3/02—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
- 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
- B05D5/061—Special surface effect
-
- 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
- B05D5/061—Special surface effect
- B05D5/063—Reflective effect
-
- 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
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
- B05D7/26—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 for applying particular liquids or other fluent materials synthetic lacquers or varnishes
-
- 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
-
- 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
- B05D7/587—No clear coat specified some layers being coated "wet-on-wet", the others not
Abstract
The invention provides a PCM color coated sheet with a color changing effect, which is suitable for the outer surface of a product, so that the appearance color of the product is rich, and the requirements of users are met. It includes the base member, the internal surface of base member is provided with first chemical treatment layer, the surface of base member is provided with second chemical treatment layer, the exterior coating on second chemical treatment layer has the priming paint layer, the exterior coating on first chemical treatment layer has back paint layer, the exterior coating on priming paint layer has finish paint layer, finish paint layer's exterior coating has the varnish layer, the varnish layer is formed by a plurality of layers of transparent paint layer and silica particles mixture, silica particle is transparent material, has scattered silica particles between every adjacent transparent paint layer, varnish layer's top layer is transparent paint layer.
Description
Technical Field
The invention relates to the technical field of PCM plate structures, in particular to a PCM color coated plate with a color changing effect.
Background
PCM color coated sheet is the color coated steel sheet, and the color coated steel sheet is a steel sheet that has organic coating, and at present, PCM board mainly is applied to the outside decoration of product for the product is pleasing to the eye, and in the reality, the user has certain requirement to the colour of some products, needs to have certain change on the outward appearance colour of product, and current PCM color coated sheet is single color, leads to can not satisfying user's demand.
Disclosure of Invention
Aiming at the problems, the invention provides the PCM color coated sheet with the color changing effect, which is suitable for the outer surface of a product, so that the appearance color of the product is rich, and the requirements of users are met.
PCM color coated sheet with color-changing effect, its characterized in that: it includes the base member, the internal surface of base member is provided with first chemical treatment layer, the surface of base member is provided with second chemical treatment layer, the exterior coating on second chemical treatment layer has the priming paint layer, the exterior coating on first chemical treatment layer has back paint layer, the exterior coating on priming paint layer has finish paint layer, finish paint layer's exterior coating has the varnish layer, the varnish layer is formed by a plurality of layers of transparent paint layer and silica particles mixture, silica particle is transparent material, has scattered silica particles between every adjacent transparent paint layer, varnish layer's top layer is transparent paint layer.
It is further characterized in that: the varnish layer is formed by laminating N layers of transparent paint layers and M layers of silicon dioxide particles, wherein M, N are natural numbers, and N is greater than M;
preferably, the value of M is (N-1) such that the maximum number of layers of silica particles is arranged in the varnish layer;
the thickness of the rest transparent paint layers except the transparent paint layer on the outermost layer is 5-10 mu m, the thickness of the transparent paint layer on the outermost layer is 20-50 mu m, and the whole thickness of the varnish layer is 100-200 mu m;
the particle size of the silicon dioxide particles is less than 0.2 mu m, and the silicon dioxide particles positioned in the middle are wrapped by the adjacent transparent paint layers;
the substrate is specifically a galvanized plate, and a first chemical treatment layer and a second chemical treatment layer are formed on the outer surface and the inner surface of the galvanized plate after phosphating;
the back paint layer is formed by spraying epoxy resin paint, and the thickness of the back paint layer is 20-50 mu m;
the primer layer is formed by spraying polyester resin paint, and the thickness of the primer layer is 20-50 microns;
the finish paint layer is formed by spraying polyester resin paint, the thickness of the finish paint layer is 20-50 mu m, and the color of the finish paint layer is configured according to requirements.
The manufacturing method of the PCM color coated sheet with the color change effect comprises the following specific steps:
s1: the method comprises the following steps of pretreatment, alkaline washing degreasing, cleaning oil stains and impurities of a matrix, ensuring the cleanness of a board surface, serving as a foundation for a later process of painting, and cleaning with clear water after degreasing to ensure that no residual liquid is left;
s2: phosphating, namely immersing the substrate in phosphating solution of a phosphating tank after cleaning to form a first chemical treatment layer and a second chemical treatment layer on the inner surface and the outer surface of the substrate;
s3: spraying back paint and primer, spraying epoxy resin paint with the thickness of 20-50 microns on the outer surface of the first chemical treatment layer, and spraying polyester resin paint with the thickness of 20-50 microns on the outer surface of the second chemical treatment layer;
s4: drying, namely after spraying the back paint and coating the primer, entering a drying furnace to finish curing and drying processes, controlling the temperature to be 160-300 ℃, and curing for 15-30 s;
s5: preparing a finish paint layer, and spraying polyester resin paint with the thickness of 20-50 mu m on the outer surface of the primer layer after drying;
s6: drying, namely after finishing spraying finish paint, putting the paint into a drying furnace to finish curing and drying processes, controlling the temperature to be 180-320 ℃, and curing for 25-40 s;
s7: manufacturing a clear paint layer, conveying a substrate to a vacuum environment, arranging a spraying machine and a silicon dioxide particle scattering device behind an inner cavity of the vacuum environment, spraying a single-layer transparent paint layer on the upper surface of the transparent paint layer in a linear direction by a spraying machine head of the spraying machine after the spraying machine head of the spraying machine linearly advances along the length direction of the substrate, scattering two silicon particles on the upper surface of the transparent paint layer in the linear direction by the silicon dioxide particle scattering device, driving the spraying machine again to spray the single-layer transparent paint layer on the upper surface of the silicon dioxide particles until a set N-layer transparent paint layer and a set M-layer silicon dioxide particle layer are formed, and then;
s8: drying, namely after the varnish layer is manufactured, putting the varnish layer into a drying furnace to finish the curing and drying processes, controlling the temperature to be 200-320 ℃, and curing for 50-60 s;
s9: sticking a film, namely sticking the film on the upper surface of the varnish layer after cooling, and sticking a protective film;
s10: winding: the whole edge-flush winding is ensured, and the factory-leaving quality requirement is met.
Wherein the protective film is removed after the PCM color-coated sheet is assembled to a product and enters a user environment to be used.
After the invention is adopted, the varnish layer is formed by mixing a plurality of transparent paint layers and silicon dioxide particles, the silicon dioxide particles are made of transparent materials, the silicon dioxide particles are scattered between every two adjacent transparent paint layers, the outermost layer of the varnish layer is the transparent paint layer, the transparent two-like silicon particles can refract and reflect optical fibers for many times, and after the refraction and the reflection for many times, finish paint seen by a user can be combined with the surrounding environment to generate a plurality of colors, so that the color change effect is formed; the product is suitable for the outer surface of the product, so that the product has rich appearance colors and meets the requirements of users.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the paint comprises a substrate 1, a first chemical treatment layer 2, a second chemical treatment layer 3, a primer layer 4, a back paint layer 5, a primer layer 4, a finish paint layer 6, a varnish layer 7, a transparent paint layer 8 and silica particles 9.
Detailed Description
PCM color coated sheet with color change effect, see figure 1: it includes base member 1, the internal surface of base member 1 is provided with first chemical treatment layer 2, the surface of base member 1 is provided with second chemical treatment layer 3, the exterior coating on second chemical treatment layer 3 has priming paint layer 4, the exterior coating on first chemical treatment layer 2 has back paint layer 5, the exterior coating on priming paint layer 4 has finish paint layer 6, the exterior coating on finish paint layer 6 has varnish layer 7, varnish layer 7 is formed by mixing a plurality of layers of transparent paint layer 8 and silica granule 9, silica granule 9 is transparent material, it has silica granule 9 to scatter between every adjacent transparent paint layer 8, the top layer of varnish layer 7 is transparent paint layer 8.
The varnish layer 7 is formed by overlapping N layers of transparent paint layers 8 and M layers of silicon dioxide particles 9, wherein M, N are natural numbers, and N is larger than M;
the value of M is (N-1) such that the maximum number of layers of silica particles is arranged in the varnish layer;
the thickness of the rest transparent paint layers except the transparent paint layer on the outermost layer is 5-10 mu m, the thickness of the transparent paint layer on the outermost layer is 20-50 mu m, and the overall thickness of the varnish layer is 100-200 mu m;
the particle size of the silicon dioxide particles is less than 0.2 μm, the adjacent transparent paint layers wrap the silicon dioxide particles positioned in the middle,
the substrate is specifically a galvanized plate, and a first chemical treatment layer and a second chemical treatment layer are formed on the outer surface and the inner surface of the galvanized plate after phosphating;
the back paint layer is formed by spraying epoxy resin paint, and the thickness of the back paint layer is 20-50 mu m;
the primer layer is formed by spraying polyester resin paint, and the thickness of the primer layer is 20-50 mu m;
the finish paint layer is formed by spraying polyester resin paint, the thickness of the finish paint layer is 20-50 mu m, and the color of the finish paint layer is configured according to requirements.
In a specific embodiment, the varnish layer 7 is formed by laminating 4 layers of transparent paint 8 and 3 layers of silica particles 9.
The manufacturing method of the PCM color coated sheet with the color change effect comprises the following specific steps:
s1: the method comprises the following steps of pretreatment, alkaline washing degreasing, cleaning oil stains and impurities of a matrix, ensuring the cleanness of a board surface, serving as a foundation for a later process of painting, and cleaning with clear water after degreasing to ensure that no residual liquid is left;
s2: phosphating, namely immersing the substrate in phosphating solution of a phosphating tank after cleaning to form a first chemical treatment layer and a second chemical treatment layer on the inner surface and the outer surface of the substrate;
s3: spraying back paint and primer, spraying epoxy resin paint with the thickness of 20-50 microns on the outer surface of the first chemical treatment layer, and spraying polyester resin paint with the thickness of 20-50 microns on the outer surface of the second chemical treatment layer;
s4: drying, namely after spraying the back paint and coating the primer, entering a drying furnace to finish curing and drying processes, controlling the temperature to be 160-300 ℃, and curing for 15-30 s;
s5: preparing a finish paint layer, and spraying polyester resin paint with the thickness of 20-50 mu m on the outer surface of the primer layer after drying;
s6: drying, namely after finishing spraying finish paint, putting the paint into a drying furnace to finish curing and drying processes, controlling the temperature to be 180-320 ℃, and curing for 25-40 s;
s7: manufacturing a clear paint layer, conveying the substrate to a vacuum environment, arranging a spraying machine and a silicon dioxide particle spreading device behind an inner cavity of the vacuum environment, spraying a single-layer transparent paint layer on the upper surface of the transparent paint layer in a linear direction by a spraying machine head of the spraying machine after the spraying machine head of the spraying machine linearly advances along the length direction of the substrate, spreading two silicon-like particles on the upper surface of the transparent paint layer in the linear direction by the silicon dioxide particle spreading device, then driving the spraying machine again to spray the single-layer transparent paint layer on the upper surface of the silicon dioxide particles until a set N layers of transparent paint layers and M layers of silicon dioxide particle layers are formed;
s8: drying, namely after the varnish layer is manufactured, putting the varnish layer into a drying furnace to finish the curing and drying processes, controlling the temperature to be 200-320 ℃, and curing for 50-60 s;
s9: sticking a film, namely sticking the film on the upper surface of the varnish layer after cooling, and sticking a protective film;
s10: winding: the whole edge-flush winding is ensured, and the factory-leaving quality requirement is met.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. PCM color coated sheet with color-changing effect, its characterized in that: it includes the base member, the internal surface of base member is provided with first chemical treatment layer, the surface of base member is provided with second chemical treatment layer, the exterior coating on second chemical treatment layer has the priming paint layer, the exterior coating on first chemical treatment layer has back paint layer, the exterior coating on priming paint layer has finish paint layer, finish paint layer's exterior coating has the varnish layer, the varnish layer is formed by a plurality of layers of transparent paint layer and silica particles mixture, silica particle is transparent material, has scattered silica particles between every adjacent transparent paint layer, varnish layer's top layer is transparent paint layer.
2. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the varnish layer is formed by laminating N layers of transparent paint layers and M layers of silicon dioxide particles, wherein M, N are natural numbers, and N is larger than M.
3. A PCM color-coated sheet having a color-changing effect according to claim 2, wherein: the value of M is (N-1) such that the maximum number of layers of silica particles is arranged in the varnish layer.
4. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the thickness of the rest transparent paint layers except the outermost transparent paint layer is 5-10 mu m, the thickness of the outermost transparent paint layer is 20-50 mu m, and the whole thickness of the varnish layer is 100-200 mu m.
5. A PCM color coated sheet with color changing effect according to claim 3, wherein: the particle size of the silicon dioxide particles is less than 0.2 mu m, and the silicon dioxide particles positioned in the middle are wrapped by the adjacent transparent paint layers.
6. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the substrate is specifically a galvanized plate, and a first chemical treatment layer and a second chemical treatment layer are formed on the outer surface and the inner surface of the galvanized plate after phosphating.
7. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the back paint layer is formed by spraying epoxy resin paint, and the thickness of the back paint layer is 20-50 microns.
8. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the primer layer is formed by spraying polyester resin paint, and the thickness of the primer layer is 20-50 microns.
9. A PCM color-coated sheet having a color-changing effect according to claim 1, wherein: the finish paint layer is formed by spraying polyester resin paint, the thickness of the finish paint layer is 20-50 mu m, and the color of the finish paint layer is configured according to requirements.
10. The manufacturing method of the PCM color coated sheet with the color change effect comprises the following specific steps:
s1: the method comprises the following steps of pretreatment, alkaline washing degreasing, cleaning oil stains and impurities of a matrix, ensuring the cleanness of a board surface, serving as a foundation for a later process of painting, and cleaning with clear water after degreasing to ensure that no residual liquid is left;
s2: phosphating, namely immersing the substrate in phosphating solution of a phosphating tank after cleaning to form a first chemical treatment layer and a second chemical treatment layer on the inner surface and the outer surface of the substrate;
s3: spraying back paint and primer, spraying epoxy resin paint with the thickness of 20-50 microns on the outer surface of the first chemical treatment layer, and spraying polyester resin paint with the thickness of 20-50 microns on the outer surface of the second chemical treatment layer;
s4: drying, namely after spraying the back paint and coating the primer, entering a drying furnace to finish curing and drying processes, controlling the temperature to be 160-300 ℃, and curing for 15-30 s;
s5: preparing a finish paint layer, and spraying polyester resin paint with the thickness of 20-50 mu m on the outer surface of the primer layer after drying;
s6: drying, namely after finishing spraying finish paint, putting the paint into a drying furnace to finish curing and drying processes, controlling the temperature to be 180-320 ℃, and curing for 25-40 s;
s7: manufacturing a clear paint layer, conveying a substrate to a vacuum environment, arranging a spraying machine and a silicon dioxide particle scattering device behind an inner cavity of the vacuum environment, spraying a single-layer transparent paint layer on the upper surface of the transparent paint layer in a linear direction by a spraying machine head of the spraying machine after the spraying machine head of the spraying machine linearly advances along the length direction of the substrate, scattering two silicon particles on the upper surface of the transparent paint layer in the linear direction by the silicon dioxide particle scattering device, driving the spraying machine again to spray the single-layer transparent paint layer on the upper surface of the silicon dioxide particles until a set N-layer transparent paint layer and a set M-layer silicon dioxide particle layer are formed, and then;
s8: drying, namely after the varnish layer is manufactured, putting the varnish layer into a drying furnace to finish the curing and drying processes, controlling the temperature to be 200-320 ℃, and curing for 50-60 s;
s9: sticking a film, namely sticking the film on the upper surface of the varnish layer after cooling, and sticking a protective film;
s10: winding: the whole edge-flush winding is ensured, and the factory-leaving quality requirement is met.
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CN201910875876.3A CN110586430B (en) | 2019-09-17 | 2019-09-17 | PCM color coated sheet with color changing effect |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113478927A (en) * | 2021-06-18 | 2021-10-08 | 杭州普络飞新材料科技有限公司 | Environment-friendly antistatic PCM (pulse code modulation) board and manufacturing method thereof |
CN114872393A (en) * | 2022-05-26 | 2022-08-09 | 合肥河钢新材料科技有限公司 | Production process of temperature-controlled color plate |
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CN102285165A (en) * | 2011-07-01 | 2011-12-21 | 珠海拾比佰彩图板股份有限公司 | Color wire-drawing pre-coated metal (PCM) composite plate imitating effect of polyvinyl chloride (PVC) film |
CN103802577A (en) * | 2012-11-01 | 2014-05-21 | 三星电子株式会社 | Case frame, manufacturing method thereof and electronic device employing case frame |
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CN1811493A (en) * | 2004-10-07 | 2006-08-02 | 肖特股份公司 | Metal reflector and method manufacturing same |
CN101863180A (en) * | 2010-06-22 | 2010-10-20 | 苏州禾盛新型材料股份有限公司 | PCM writing board for panel of refrigerator |
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CN114872393A (en) * | 2022-05-26 | 2022-08-09 | 合肥河钢新材料科技有限公司 | Production process of temperature-controlled color plate |
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