Novel stainless steel color-coated sheet

Abstract

The utility model provides a novel stainless steel color-coated sheet, which relates to the technical field of color-coated sheets and comprises a stainless steel substrate, the top of the stainless steel substrate is coated with a chemical conversion layer, and the top of the chemical conversion layer is coated with a first primer layer. According to the stainless steel color-coated plate, the chemical conversion layer provides an inert layer for the surface of the stainless steel color-coated plate, rusting and other corrosion phenomena are prevented, good surface adhesion is provided, the stainless steel color-coated plate can be better attached to the metal surface, and therefore the durability of the coating is improved, and the service life of the coating is prolonged; the paint has good antirust and anticorrosion performance, can effectively prevent a base material from being corroded and damaged, can be firmly attached to various base materials, is not liable to fall off or peel off, is high in drying speed, improves the production efficiency, is provided with the second primer layer, is high in adhesive force, is not liable to fall off or peel off, provides long-term stable protection for a coating, is high in hardness, is high in wear resistance, and is not liable to fall off or peel off. And external abrasion and scratches can be effectively resisted.

Description

Technical Field

[0001] The utility model relates to the technical field of color-coated plates, in particular to a novel stainless steel color-coated plate. Background Art

[0002] Color-coated stainless steel sheets, also known as color-coated steel sheets or organic-coated sheets, are composite sheets made of stainless steel sheets as the base material and coated with one or more layers of organic coatings or plastic films on the surface. This type of sheet not only retains the high strength and easy processing properties of stainless steel, but also gives it more excellent properties through the coating.

[0003] However, in the prior art, the coating quality of ordinary color-coated plates is poor. Color-coated plates may have defects such as uneven coating, coating peeling, and rough paint surface, which affect the overall quality and use effect of the product. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when existing equipment is used, due to the poor coating quality of ordinary color-coated plates at this stage, the coating is uneven, peeling, the paint surface is rough and other defects affect the overall quality and use effect, and a new type of stainless steel color-coated plate is proposed.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a novel stainless steel color-coated plate, comprising a stainless steel substrate, a chemical conversion layer coated on the top of the stainless steel substrate, a first primer layer coated on the top of the chemical conversion layer, a second primer layer coated on the top of the first primer layer, a first topcoat layer coated on the top of the second primer layer, a wear-resistant layer coated on the top of the first topcoat layer, a color layer coated on the top of the wear-resistant layer, a first backcoat layer coated on the top of the color layer, and a second backcoat layer coated on the top of the first backcoat layer;

[0006] Preferably, the stainless steel substrate is made of stainless steel, and the thickness of the stainless steel substrate is 300-800 μm; the chemical conversion layer is made of zinc phosphate, and the thickness of the chemical conversion layer is 15-20 μm.

[0007] Preferably, the first primer layer is made of polyurethane primer, and the thickness of the first primer layer is 12-20 μm; the second primer layer is made of nano paint primer, and the thickness of the second primer layer is 15-22 μm.

[0008] Preferably, the first topcoat layer is made of siloxane, and the thickness of the first topcoat layer is 10-22 μm.

[0009] Preferably, the wear-resistant layer is made of polyvinylidene fluoride, and the thickness of the wear-resistant layer is 12-19 μm.

[0010] Preferably, the color layer is made of highly weather-resistant polyester, and the thickness of the color layer is 8-20 μm; the first back paint layer is made of silicon-modified polyester, and the thickness of the first back paint layer is 11-22 μm.

[0011] Preferably, the second back paint layer is an acrylic coating, and the thickness of the second back paint layer is 10-19 μm.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, the chemical conversion layer provides an inert layer for the surface of the stainless steel color-coated plate, which helps prevent the occurrence of rust and other corrosion phenomena, provides good surface adhesion, and can better adhere to the metal surface, thereby improving the durability and service life of the coating. The first primer layer has good anti-rust and anti-corrosion properties, can effectively prevent the substrate from being corroded and damaged, can firmly adhere to various substrates, and is not easy to fall off or peel off. In addition, the drying speed is fast, which improves production efficiency. The second primer layer has strong adhesion and is not easy to fall off or peel off, providing long-term and stable protection for the coating. Secondly, it has high hardness and strong wear resistance, and can effectively resist external wear and scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Fig. 1 The utility model proposes a front view of a new type of stainless steel color-coated plate;

[0015] Fig. 2 The utility model proposes a main structural diagram of a new type of stainless steel color-coated plate;

[0016] Fig. 3 The utility model proposes a new type of stainless steel color-coated plate A structural schematic diagram.

[0017] Legend:

[0018] 1. Stainless steel substrate; 2. Chemical conversion layer; 3. First primer layer; 4. Second primer layer; 5. First topcoat layer; 6. Wear-resistant layer; 7. Color layer; 8. First backcoat layer; 9. Second backcoat layer. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Examples, such as Figs. 1-3 As shown, the utility model provides a new type of stainless steel color-coated plate, including a stainless steel substrate 1, characterized in that: the top of the stainless steel substrate 1 is coated with a chemical conversion layer 2, the top of the chemical conversion layer 2 is coated with a first primer layer 3, the top of the first primer layer 3 is coated with a second primer layer 4, the top of the second primer layer 4 is coated with a first topcoat layer 5, the top of the first topcoat layer 5 is coated with a wear-resistant layer 6, the top of the wear-resistant layer 6 is coated with a color layer 7, the top of the color layer 7 is coated with a first back paint layer 8, the top of the first back paint layer 8 is coated with a second back paint layer 9, the stainless steel substrate 1 is made of stainless steel, and the thickness of the stainless steel substrate 1 is 300-800μm, the chemical conversion layer 2 is made of zinc phosphate, and the chemical conversion layer 2 has a thickness of 15-20 μm, the first primer layer 3 adopts polyurethane primer, and the thickness of the first primer layer 3 is 12-20 μm, the second primer layer 4 adopts nano paint primer, and the thickness of the second primer layer 4 is 15-22 μm, the first topcoat layer 5 adopts silicone, and the thickness of the first topcoat layer 5 is 10-22 μm, the wear-resistant layer 6 adopts polyvinylidene fluoride, and the thickness of the wear-resistant layer 6 is 12-19 μm, the color layer 7 adopts high weather-resistant polyester, and the thickness of the color layer 7 is 8-20 μm, the first back paint layer 8 adopts silicon-modified polyester, and the thickness of the first back paint layer 8 is 11-22 μm, the second back paint layer 9 adopts acrylic coating, and the thickness of the second back paint layer 9 is 10-19 μm.

[0022] The effect achieved by the entire embodiment 1 is that the chemical conversion layer 2 provides an inert layer for the metal surface, which helps to prevent the occurrence of rust and other corrosion phenomena, provides good surface adhesion, and can better adhere to the metal surface, thereby improving the durability and service life of the coating; the first primer layer 3 has good anti-rust and anti-corrosion properties, can effectively prevent the substrate from being corroded and damaged, can firmly adhere to various substrates, and is not easy to fall off or peel off. In addition, the drying speed is fast, which improves production efficiency; the second primer layer 4 has strong adhesion and is not easy to fall off or peel off, providing long-term and stable protection for the coating; secondly, it has high hardness and strong wear resistance, and can effectively resist external wear and scratches; the first topcoat layer 5 has high hardness and wear resistance, and can resist external wear and scratches. At the same time, it also has excellent weather resistance and can remain stable under various climatic conditions. The wear-resistant layer 6 is wear-resistant and weather-resistant, and has outstanding resistance to ultraviolet rays and atmospheric aging. The color layer 7 has a rich color selection and glossiness, and has high wear resistance. It can effectively resist scratches and wear on the surface of objects and maintain the beauty and integrity of the coating. The first back paint layer 8 can form a strong bond with the substrate. At the same time, it has high hardness and wear resistance, can resist scratches and wear, maintain the integrity and beauty of the coating and provide long-lasting protection. The second back paint layer 9 has good protective performance, is water-resistant and oil-resistant, and has a good protective effect on the coated object. The coating is plump, smooth and bright, friction-resistant, easy to clean, impact-resistant, colorful and beautiful.

[0023] Working principle: First, the environmentally friendly wall cloth from the outermost layer to the outermost layer is color layer 7 - wear-resistant layer 6 - first topcoat layer 5 - second primer layer 4 - first primer layer 3 - chemical conversion layer 2 - stainless steel substrate 1 - first back paint layer 8 - second back paint layer 9, The chemical conversion layer 2 uses zinc phosphate as a coating, which can improve the corrosion resistance of metal materials and extend their service life. As a pretreatment process before painting, it improves the adhesion between the coating layer and the stainless steel color-coated plate. The first primer layer 3 is a polyurethane primer, which provides the coating with wear resistance and corrosion resistance and extends the service life of the coating. The second primer layer 4 is a nano-paint primer with high hardness and strong wear resistance. It can effectively resist external wear and scratches. The first topcoat layer 5 uses silicone, which has high hardness and wear resistance, can resist external wear and scratches, and has a long service life. The wear-resistant layer 6 uses polyvinylidene fluoride coating, which is a high-performance, environmentally friendly material with strong wear resistance and weather resistance, and can resist ultraviolet rays and atmospheric aging. The color layer 7 uses high weather-resistant polyester with strong UV resistance, not easy to powder or fall off, and maintains long-lasting color and gloss. The first back paint layer 8 uses silicon-modified polyester material with excellent corrosion resistance and can maintain stable performance in various environments. The second back paint layer 9 uses acrylic acid with strong UV resistance, not easy to powder or fall off, and maintains long-lasting color and gloss.

[0024] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A new type of stainless steel color-coated plate, comprising a stainless steel substrate (1), characterized in that: The top of the stainless steel substrate (1) is coated with a chemical conversion layer (2), the top of the chemical conversion layer (2) is coated with a first primer layer (3), the top of the first primer layer (3) is coated with a second primer layer (4), the top of the second primer layer (4) is coated with a first topcoat layer (5), the top of the first topcoat layer (5) is coated with a wear-resistant layer (6), the top of the wear-resistant layer (6) is coated with a color layer (7), the top of the color layer (7) is coated with a first backcoat layer (8), and the top of the first backcoat layer (8) is coated with a second backcoat layer (9).

2. The novel stainless steel color-coated plate according to claim 1, characterized in that: The stainless steel substrate (1) is made of stainless steel, and the thickness of the stainless steel substrate (1) is 300-800 μm. The chemical conversion layer (2) is made of zinc phosphate, and the thickness of the chemical conversion layer (2) is 15-20 μm.

3. The novel stainless steel color-coated plate according to claim 2, characterized in that: The first primer layer (3) is a polyurethane primer, and the thickness of the first primer layer (3) is 12-20 μm; the second primer layer (4) is a nano-paint primer, and the thickness of the second primer layer (4) is 15-22 μm.

4. The novel stainless steel color-coated plate according to claim 3, characterized in that: The first topcoat layer (5) is made of siloxane, and the thickness of the first topcoat layer (5) is 10-22 μm.

5. The novel stainless steel color-coated plate according to claim 4, characterized in that: The wear-resistant layer (6) is made of polyvinylidene fluoride, and the thickness of the wear-resistant layer (6) is 12-19 μm.

6. The novel stainless steel color-coated plate according to claim 5, characterized in that: The color layer (7) is made of highly weather-resistant polyester, and the thickness of the color layer (7) is 8-20 μm. The first back paint layer (8) is made of silicon-modified polyester, and the thickness of the first back paint layer (8) is 11-22 μm.

7. The novel stainless steel color-coated plate according to claim 6, characterized in that: The second back paint layer (9) is an acrylic coating, and the thickness of the second back paint layer (9) is 10-19 μm.

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