Galvanized steel plate with excellent corrosion resistance

Abstract

The utility model discloses a galvanized steel sheet with excellent corrosion resistance, which comprises a steel sheet base layer, connecting layers and zinc layers, the top and the bottom of the steel sheet base layer are both provided with the connecting layers, the zinc layers are arranged on the two connecting layers, and the surfaces of the zinc layers are provided with nano anticorrosive coatings. Compared with the prior art, the galvanized steel sheet has the advantages that the nano anticorrosive coating is arranged on the zinc layer, so that the anticorrosive performance of the galvanized steel sheet is improved, the galvanized steel sheet can keep a good anticorrosive effect in severe environments such as high humidity and high salinity, and meanwhile, the surface of the connecting layer is wavy, so that the contact area between the zinc layer and the connecting layer can be effectively increased, and the service life of the galvanized steel sheet is prolonged. And the connection stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized steel plates, in particular to a galvanized steel plate with excellent corrosion resistance. Background Art

[0002] Galvanized steel sheet is a process of coating the surface of steel sheet with a layer of zinc. The purpose of galvanizing is to prevent corrosion of the steel sheet and extend its service life. Galvanized steel sheet can provide many advantages, such as corrosion resistance, durability, strength, aesthetics and plasticity. It is widely used in construction, manufacturing, automotive industry, electric power industry and other fields.

[0003] Existing galvanized steel plates have certain disadvantages. The corrosion resistance of existing galvanized steel plates in specific environments, such as high humidity, high salinity and other harsh environments, still needs to be improved. High humidity and high salinity environments have a certain impact on the service life of galvanized steel plates. For this reason, we propose a galvanized steel plate with excellent corrosion resistance. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a galvanized steel plate with excellent corrosion resistance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A galvanized steel plate with excellent corrosion resistance comprises a steel plate base, a connecting layer and a zinc layer, wherein the top and bottom of the steel plate base are both provided with connecting layers, the two connecting layers are provided with zinc layers, and the surface of the zinc layer is provided with a nano anti-corrosion coating.

[0007] Preferably, the connection surface between the connection layer and the zinc layer is wavy, and the wavy structure effectively increases the contact area, thereby improving the stability of the connection.

[0008] Preferably, the nano anti-corrosion coating is coated on the zinc layer by spraying, dipping, etc. to form a uniform and dense anti-corrosion layer, thereby further improving the anti-corrosion performance of the galvanized steel sheet.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The galvanized steel sheet of the utility model not only improves the anti-corrosion performance of the galvanized steel sheet by arranging a nano anti-corrosion coating on the zinc layer, so that it can maintain a good anti-corrosion effect even in harsh environments such as high humidity and high salinity, but also the surface of the connecting layer is arranged in a wavy shape, which can effectively increase the contact area between the zinc layer and the connecting layer, thereby improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the structure of a galvanized steel plate with excellent corrosion resistance proposed by the utility model;

[0012] Figure 2 for Figure 1 Axonometric view of the middle connection layer.

[0013] In the picture: 1 steel plate base layer, 2 connecting layer, 3 zinc layer, 4 nanometer anti-corrosion coating. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] Reference Figure 1-2 A galvanized steel sheet with excellent corrosion resistance comprises a steel sheet base 1, a connecting layer 2 and a zinc layer 3. The connecting layer 2 is arranged on the top and the bottom of the steel sheet base 1. The material of the steel sheet base 1 can be selected from metal materials such as carbon steel and stainless steel, and is selected according to the specific use environment and needs. The zinc layer 3 is arranged on the two connecting layers 2. The connecting surface of the connecting layer 2 and the zinc layer 3 is wavy. The wavy structure effectively increases the contact area, thereby improving the stability of the connection. The thickness of the zinc layer 3 can be adjusted according to the specific use environment and needs to meet the anti-corrosion requirements in different environments. The surface of the zinc layer 3 is provided with a nano anti-corrosion coating 4. The nano anti-corrosion coating 4 is made of a mixture of nano-scale oxide particles and organic polymer materials, and has excellent anti-corrosion properties and good adhesion. The nano anti-corrosion coating 4 is coated on the zinc layer by spraying, dipping, etc. to form a uniform and dense anti-corrosion layer, which further improves the anti-corrosion properties of the galvanized steel sheet. By arranging the nano anti-corrosion coating on the zinc layer, not only the anti-corrosion properties of the galvanized steel sheet are improved, but also the good anti-corrosion effect can be maintained in harsh environments such as high humidity and high salinity. At the same time, the surface of the connecting layer is set to be wavy, which can effectively increase the contact area between the zinc layer and the connecting layer, thereby improving the stability of the connection.

[0016] In the utility model, carbon steel or stainless steel is selected as the steel plate base, the thickness of the steel plate base is 2.0 mm, and a connecting layer 2 is arranged on the top and bottom of the steel plate base 1. The connecting layer 2 is also integrally formed of carbon steel or stainless steel. The surface of the connecting layer 2 is plated with a zinc layer 3 with a thickness of 0.05 mm. The contact surface between the connecting layer 2 and the zinc layer 3 is wavy, which can improve the strength of the zinc layer 3. A nano anti-corrosion coating 4 is arranged on the zinc layer 3. The nano anti-corrosion coating 4 is made of a mixture of nano-scale titanium dioxide particles and polyurethane materials, and is coated on the zinc layer 3 by spraying to form a uniform and dense anti-corrosion layer.

[0017] To sum up, compared with the prior art, the utility model not only improves the anti-corrosion performance of the galvanized steel sheet by arranging a nano anti-corrosion coating on the zinc layer, so that it can maintain a good anti-corrosion effect in harsh environments such as high humidity and high salinity, but also the surface of the connecting layer is set to be wavy, which can effectively increase the contact area between the zinc layer and the connecting layer, and then improve the stability of the connection.

[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A galvanized steel sheet with excellent corrosion resistance, comprising a steel sheet base layer (1), a connecting layer (2) and a zinc layer (3), characterized in that: The top and bottom of the steel plate base layer (1) are both provided with a connection layer (2), a zinc layer (3) is provided on the two connection layers (2), and a nano anti-corrosion coating (4) is provided on the surface of the zinc layer (3).

2. The galvanized steel sheet with excellent corrosion resistance according to claim 1, characterized in that: The connection surface between the connection layer (2) and the zinc layer (3) is wavy, and the wavy structure effectively increases the contact area, thereby improving the stability of the connection.

3. The galvanized steel sheet with excellent corrosion resistance according to claim 1, characterized in that: The nano anti-corrosion coating (4) is coated on the zinc layer by spraying or dipping to form a uniform and dense anti-corrosion layer, thereby further improving the anti-corrosion performance of the galvanized steel sheet.

Images