Vacuum hexagonal external thread with high corrosion resistance
By setting up multiple protective layers on the vacuum hexagonal outer wire, the problem of corrosion-proof material damage during the screwing process of traditional hexagonal outer wire is solved, achieving more efficient corrosion protection and longer service life, while enhancing the internal strength and deformation resistance.
Patent Information
- Application Number
- CN202421791665.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-07-27
AI Technical Summary
During the twisting process, the external anti-corrosion materials of traditional hexagonal outer wire are easily damaged, resulting in a reduced anti-corrosion effect and reduced service life.
Vacuum hexagonal outer wire is used, with wear-resistant layer, corrosion-resistant layer and anti-rust layer on the outer surface, and reinforcement layer and anti-deformation layer are provided on the inner cavity wall. It is fixed by layer by layer plating and welding to form a multi-layer protective structure.
It effectively improves the corrosion resistance of vacuum hexagonal outer wire, extends service life, and enhances internal strength and deformation resistance.
Smart Images
Figure CN222296673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hexagonal external threads, in particular to a vacuum hexagonal external thread with high corrosion resistance. Background Art
[0002] Hexagonal external thread is a commonly used accessory in industrial pipeline connections. Common ones include equal-diameter hexagonal external threads and reducing-diameter hexagonal external threads. The middle part is a hexagonal cross-section, and the two sides are connected by threads. The materials transported by industrial pipelines generally have a certain overlooking property. Although the traditional hexagonal external thread has a certain anti-corrosion function, there is no protective structure on the outside. During the twisting process, the external anti-corrosion material will be damaged, resulting in a reduction in the anti-corrosion effect and a reduction in the service life of the hexagonal external thread. For this reason, a vacuum hexagonal external thread with high corrosion resistance is proposed to solve the above problems. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a vacuum hexagonal external thread with high corrosion resistance, which has the advantage of high efficiency and corrosion resistance.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a technical solution adopted by a vacuum hexagonal external thread with high corrosion resistance is: it includes a vacuum hexagonal external thread body, the outer surface of the vacuum hexagonal external thread body is provided with a first protective layer, the first protective layer includes a wear-resistant layer, a corrosion-resistant layer and an anti-rust layer, the inner cavity wall of the vacuum hexagonal external thread body is provided with a second protective layer, and the second protective layer includes a reinforcement layer and an anti-deformation layer.
[0007] As a preferred solution, the wear-resistant layer is located on the outer surface of the corrosion-resistant layer, and the corrosion-resistant layer is located on the outer surface of the rust-proof layer.
[0008] As a preferred solution, the material of the wear-resistant layer is hard chrome plating, and the material of the corrosion-resistant layer is electroplated black zinc.
[0009] As a preferred solution, the material of the anti-rust layer is a zinc-chromium coating, and the wear-resistant layer, the corrosion-resistant layer and the anti-rust layer are fixed by electroplating layer by layer.
[0010] As a preferred solution, the anti-deformation layer is located on the inner surface of the reinforcement layer, and the material of the anti-deformation layer is austenitic stainless steel.
[0011] As a preferred solution, the material of the reinforcement layer is carbon steel, and the reinforcement layer and the anti-deformation layer are fixedly connected to the inner cavity wall of the vacuum hexagonal outer wire body by welding.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the utility model provides a vacuum hexagonal external thread with high corrosion resistance, which has the following beneficial effects.
[0014] 1. Through the coordinated use of the vacuum hexagonal outer thread body, the first protective layer, the wear-resistant layer, the corrosion-resistant layer and the rust-proof layer, the corrosion-resistant performance of the outer surface of the vacuum hexagonal outer thread body can be effectively improved, and the corrosion-resistant layer can be protected to extend the service life of the corrosion-resistant layer.
[0015] 2. The corrosion resistance of the inner wall of the vacuum hexagonal outer wire body can be effectively improved by using the second protective layer, the reinforcement layer and the anti-deformation layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the composition structure of the first protective layer of the utility model;
[0018] Figure 3 This is a schematic diagram of the composition structure of the second protective layer of the utility model.
[0019] In the figure: 1. Vacuum hexagonal outer thread body; 2. First protective layer; 21. Wear-resistant layer; 22. Corrosion-resistant layer; 23. Anti-rust layer; 3. Second protective layer; 31. Reinforcement layer; 32. Anti-deformation layer. DETAILED DESCRIPTION
[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] The vacuum hexagonal external thread body 1, the first protective layer 2, the wear-resistant layer 21, the corrosion-resistant layer 22, the rust-resistant layer 23, the second protective layer 3, the reinforcement layer 31 and the anti-deformation layer 32 components of the present application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.
[0024] Embodiment 1:
[0025] See also Figure 1-3 In order to achieve the purpose of external protection, the present embodiment provides the following technical solutions, which specifically disclose: comprising a vacuum hexagonal outer thread body 1, the outer surface of the vacuum hexagonal outer thread body 1 is provided with a first protective layer 2, the first protective layer 2 comprises a wear-resistant layer 21, a corrosion-resistant layer 22 and an anti-rust layer 23, the wear-resistant layer 21 is located on the outer surface of the corrosion-resistant layer 22, the corrosion-resistant layer 22 is located on the outer surface of the anti-rust layer 23, the material of the wear-resistant layer 21 is hard chrome plating, the material of the corrosion-resistant layer 22 is electroplated black zinc, the material of the anti-rust layer 23 is zinc-chromium coating, the wear-resistant layer 21, the corrosion-resistant layer 22 and the anti-rust layer 23 are fixed by electroplating layer by layer, and the first protective layer 21 is provided with a first protective layer 22, the first protective layer 23 comprises a wear-resistant layer 21, a corrosion-resistant layer 22 and an anti-rust layer 23, the wear-resistant layer 21 is provided with a first protective ... A wear-resistant layer 21 is provided. Hard chrome plating is a method of plating a thicker chrome plating layer on the surface of various substrates, which can improve the hardness, wear resistance, heat resistance and corrosion resistance of the parts, and can protect the corrosion-resistant layer 22 at the bottom to prevent the corrosion-resistant layer 22 from being damaged when twisting. By setting the corrosion-resistant layer 22, electroplating black zinc is through electroplating zinc and then chromate treatment to form a chemical conversion film, which improves the corrosion resistance of the vacuum hexagonal external thread body 1. By setting the anti-rust layer 23, the zinc-chromium coating has certain anti-corrosion and anti-rust properties, and has high heat resistance and high permeability, which can improve the corrosion and anti-rust properties of the outside of the vacuum hexagonal external thread body 1.
[0026] Embodiment 2:
[0027] See also Figure 1-3In order to achieve the purpose of internal corrosion protection, the present embodiment provides the following technical solutions, which specifically disclose: the inner cavity wall of the vacuum hexagonal outer wire body 1 is provided with a second protective layer 3, the second protective layer 3 includes a reinforcing layer 31 and an anti-deformation layer 32, the anti-deformation layer 32 is located on the inner surface of the reinforcing layer 31, the material of the anti-deformation layer 32 is austenitic stainless steel, and the material of the reinforcing layer 31 is carbon steel. The reinforcing layer 31 and the anti-deformation layer 32 are both fixedly connected to the inner cavity wall of the vacuum hexagonal outer wire body 1 by welding. By setting the reinforcing layer 31, the carbon steel has the characteristics of light weight, good corrosion resistance and wear resistance, and can enhance the strength of the inside of the vacuum hexagonal outer wire body 1. By setting the anti-deformation layer 32, the austenitic stainless steel has good heat resistance and corrosion resistance, is suitable for use in harsh environments, effectively prevents deformation, and can improve the anti-deformation and anti-corrosion performance of the inside of the vacuum hexagonal outer wire body 1.
[0028] The working principle of the utility model is: by setting the wear-resistant layer 21, hard chrome plating is a method of plating a thick chrome plating layer on the surface of various substrates, which can improve the hardness, wear resistance, temperature resistance and corrosion resistance of the parts, and can protect the corrosion-resistant layer 22 at the bottom to prevent the corrosion-resistant layer 22 from being damaged when twisting. By setting the corrosion-resistant layer 22, electroplating black zinc is a chemical conversion film formed by electroplating zinc and then undergoing chromate treatment to improve the corrosion resistance of the vacuum hexagonal outer wire body 1. By setting the anti-rust layer 23, the zinc-chromium coating The layer has certain anti-corrosion and anti-rust properties, and has high heat resistance and high permeability, which can improve the anti-corrosion and anti-rust properties of the outside of the vacuum hexagonal external wire body 1. By setting the reinforcement layer 31, the carbon steel has the characteristics of light weight, corrosion resistance and good wear resistance, and can enhance the strength of the inside of the vacuum hexagonal external wire body 1. By setting the anti-deformation layer 32, the austenitic stainless steel has good heat resistance and corrosion resistance, is suitable for use in harsh environments, effectively prevents deformation, and can improve the anti-deformation and anti-corrosion properties of the inside of the vacuum hexagonal external wire body 1.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A vacuum hexagonal external thread with high corrosion resistance, comprising a vacuum hexagonal external thread body (1), characterized in that: The outer surface of the vacuum hexagonal external thread body (1) is provided with a first protective layer (2), the first protective layer (2) comprising a wear-resistant layer (21), a corrosion-resistant layer (22) and an anti-rust layer (23), and the inner cavity wall of the vacuum hexagonal external thread body (1) is provided with a second protective layer (3), the second protective layer (3) comprising a reinforcement layer (31) and an anti-deformation layer (32).
2. The vacuum hexagonal external thread with high corrosion resistance according to claim 1, characterized in that: The wear-resistant layer (21) is located on the outer surface of the corrosion-resistant layer (22), and the corrosion-resistant layer (22) is located on the outer surface of the rust-proof layer (23).
3. The vacuum hexagonal external thread with high corrosion resistance according to claim 1, characterized in that: The material of the wear-resistant layer (21) is hard chrome plating, and the material of the corrosion-resistant layer (22) is electroplated black zinc.
4. The vacuum hexagonal external thread with high corrosion resistance according to claim 1, characterized in that: The material of the anti-rust layer (23) is a zinc-chromium coating, and the wear-resistant layer (21), the corrosion-resistant layer (22) and the anti-rust layer (23) are fixed by electroplating layer by layer.
5. The vacuum hexagonal external thread with high corrosion resistance according to claim 1, characterized in that: The anti-deformation layer (32) is located on the inner surface of the reinforcement layer (31), and the material of the anti-deformation layer (32) is austenitic stainless steel.
6. The vacuum hexagonal external thread with high corrosion resistance according to claim 1, characterized in that: The material of the reinforcing layer (31) is carbon steel, and the reinforcing layer (31) and the anti-deformation layer (32) are both fixedly connected to the inner cavity wall of the vacuum hexagonal outer wire body (1) by welding.