Hexagonal flange face welding nut with long service life

Abstract

The utility model discloses a hexagonal flange face welding nut with long service life, which comprises a nut body, the nut body comprises a nut body, the top of the nut body is fixedly connected with a cover cap, the bottom of the nut body is fixedly connected with a welding flange plate, and the surfaces of the cover cap, the nut body and the welding flange plate are respectively provided with a second protective layer. A first protective layer is arranged on the other side of the second protective layer, the second protective layer comprises a tungsten carbide coating and an aluminum oxide coating, and the first protective layer comprises a phenolic resin coating and a furan resin coating. The first protection layer is arranged, the phenolic resin coating of the first protection layer can carry out first-layer corrosion-resistant protection treatment on the cap, the nut body and the welding flange plate, and the furan resin coating can carry out second-layer corrosion-resistant protection treatment on the cap, the nut body and the welding flange plate after the phenolic resin coating is damaged. Therefore, the overall corrosion resistance of the nut body is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hexagonal flange welding nuts, specifically a hexagonal flange welding nut with a long service life. Background Technology

[0002] Hexagonal flange face nuts mainly consist of a nut body, with a flange face fixed at one end and a cap fixed at the other end. They have good sealing and corrosion resistance. However, existing hexagonal flange face welded nuts lack fire-resistant and corrosion-resistant protection mechanisms, resulting in poor overall fire resistance and corrosion resistance, which reduces their service life. Therefore, we propose a hexagonal flange face welded nut with a long service life. Utility Model Content

[0003] The purpose of this invention is to provide a hexagonal flange weld nut with a long service life to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hexagonal flange welding nut with a long service life, comprising a nut body, wherein the nut body includes a nut shell, a cap is fixedly connected to the top of the nut shell, and a welding flange is fixedly connected to the bottom of the nut shell, wherein a second protective layer is provided on the surface of the cap, the nut shell and the welding flange, and a first protective layer is provided on the other side of the second protective layer.

[0005] Preferably, the second protective layer comprises a tungsten carbide coating and an aluminum oxide coating, and the first protective layer comprises a phenolic resin coating and a furan resin coating.

[0006] Preferably, the alumina coating is applied to the surface of the cap, nut body and welding flange, and the tungsten carbide coating is applied to the other side of the alumina coating.

[0007] Preferably, the furan resin coating is applied to the other side of the tungsten carbide coating, and the phenolic resin coating is applied to the other side of the furan resin coating.

[0008] Preferably, the tungsten carbide coating and the alumina coating have the same thickness, and the phenolic resin coating and the furan resin coating have the same thickness.

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

[0010] 1. This utility model provides a first protective layer, which includes a phenolic resin coating that provides a first layer of corrosion-resistant protection for the cap, nut body, and welding flange. Furthermore, the furan resin coating provides a second layer of corrosion-resistant protection for the cap, nut body, and welding flange after the phenolic resin coating is damaged, thereby effectively improving the overall corrosion resistance of the nut body.

[0011] 2. This utility model is provided with a second protective layer, which includes a tungsten carbide coating that can provide a first layer of fire-resistant protection for the cap, nut body and welding flange after the furan resin coating is damaged, and an alumina coating that can provide a second layer of fire-resistant protection for the cap, nut body and welding flange after the tungsten carbide coating is damaged, thereby effectively improving the overall fire resistance of the nut body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the connection between the second protective layer and the first protective layer of this utility model and the welding flange;

[0014] Figure 3 This is a schematic diagram of the second protective layer structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the first protective layer structure of this utility model.

[0016] In the figure: Nut body 1, cap 11, nut body 12, welding flange 13, second protective layer 2, tungsten carbide coating 21, alumina coating 22, first protective layer 3, phenolic resin coating 31, furan resin coating 32. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The nut body 1, cap 11, nut body 12, welding flange 13, second protective layer 2, tungsten carbide coating 21, alumina coating 22, first protective layer 3, phenolic resin coating 31 and furan resin coating 32 components of this application are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0019] Example 1:

[0020] Please see Figure 1 and Figure 2The following technical solution is provided, specifically disclosing: A nut body 1 is included, comprising a nut body 12. A cap 11 is fixedly connected to the top of the nut body 12, and a welding flange 13 is fixedly connected to the bottom of the nut body 12. A second protective layer 2 is provided on the surfaces of the cap 11, the nut body 12, and the welding flange 13, and a first protective layer 3 is provided on the other side of the second protective layer 2. The first protective layer 3 includes a phenolic resin coating 31, which provides a first layer of corrosion-resistant protection for the cap 11, the nut body 12, and the welding flange 13. Furthermore, a furan resin coating 32 is provided on the phenolic resin... After the resin coating 31 is damaged, a second layer of corrosion-resistant protection treatment can be applied to the cap 11, nut body 12, and welding flange 13, thereby effectively improving the overall corrosion resistance of the nut body 1. A second protective layer 2 is provided, which includes a tungsten carbide coating 21 that can provide a first layer of fire-resistant protection treatment to the cap 11, nut body 12, and welding flange 13 after the furan resin coating 32 is damaged, and an alumina coating 22 that can provide a second layer of fire-resistant protection treatment to the cap 11, nut body 12, and welding flange 13 after the tungsten carbide coating 21 is damaged, thereby effectively improving the overall fire resistance of the nut body 1.

[0021] Example 2:

[0022] Please see Figure 3 and Figure 4 The following technical solution is provided, specifically disclosing that: the second protective layer 2 includes a tungsten carbide coating 21 and an aluminum oxide coating 22, and the first protective layer 3 includes a phenolic resin coating 31 and a furan resin coating 32. The aluminum oxide coating 22 is applied to the surface of the cap 11, the nut body 12, and the welding flange 13, and the tungsten carbide coating 21 is applied to the other side of the aluminum oxide coating 22. The furan resin coating 32 is applied to the other side of the tungsten carbide coating 21, and the phenolic resin coating 31 is applied to the other side of the furan resin coating 32. The tungsten carbide coating 21 and the aluminum oxide coating 22 have the same thickness, and the phenolic resin coating 31 and the furan resin coating 32 have the same thickness.

[0023] The working principle of this application is as follows: A first protective layer 3 is provided, which includes a phenolic resin coating 31 that provides a first layer of corrosion-resistant protection for the cap 11, nut body 12, and welding flange 13. Furthermore, a furan resin coating 32 provides a second layer of corrosion-resistant protection for the cap 11, nut body 12, and welding flange 13 after the phenolic resin coating 31 is damaged, thereby effectively improving the overall corrosion resistance of the nut body 1. A second protective layer 2 is provided, which includes a tungsten carbide coating 21 that provides a first layer of fire-resistant protection for the cap 11, nut body 12, and welding flange 13 after the furan resin coating 32 is damaged. Furthermore, an alumina coating 22 provides a second layer of fire-resistant protection for the cap 11, nut body 12, and welding flange 13 after the tungsten carbide coating 21 is damaged, thereby effectively improving the overall fire resistance of the nut body 1.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long service life hexagonal flange face weld nut comprising a nut body (1) characterised in that: The nut body (1) comprises a nut body (12), the top of the nut body (12) is fixedly connected with a cap (11), and the bottom of the nut body (12) is fixedly connected with a welding flange (13), the surfaces of the cap (11), the nut body (12) and the welding flange (13) are provided with a second protective layer (2), and the other side of the second protective layer (2) is provided with a first protective layer (3).

2. The long service life hexagonal face weld nut according to claim 1, characterized in that: The second protective layer (2) comprises a tungsten carbide coating (21) and an alumina coating (22), and the first protective layer (3) comprises a phenolic resin coating (31) and a furan resin coating (32).

3. The long service life hexagonal face weld nut according to claim 2, wherein: The alumina coating (22) is coated on the surfaces of the cap (11), the nut body (12) and the welding flange (13), and the tungsten carbide coating (21) is coated on the other side of the alumina coating (22).

4. The long service life hexagonal face weld nut according to claim 2, wherein: The furan resin coating (32) is coated on the other side of the tungsten carbide coating (21), and the phenolic resin coating (31) is coated on the other side of the furan resin coating (32).

5. The long service life hexagonal face weld nut according to claim 2, wherein: The thicknesses of the tungsten carbide coating (21) and the alumina coating (22) are the same, and the thicknesses of the phenolic resin coating (31) and the furan resin coating (32) are the same.

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