Corrosion-resistant insulating nano ceramic coating used on reamed bolt

Abstract

The invention belongs to the technical field of nano ceramic coatings, and particularly relates to a corrosion-resistant insulating nano ceramic coating used on a reamed bolt, the corrosion-resistant insulating nano ceramic coating comprises a reamed bolt main body, a bottom layer is prepared on the outer wall of the reamed bolt main body, and a corrosion-resistant insulating nano ceramic coating structure is prepared on the surface of the bottom layer; the corrosion-resistant insulating nano ceramic coating structure comprises a nano ceramic coating main body, an insulating layer and a corrosion-resistant layer, and the bottom layer, the nano ceramic coating main body, the insulating layer and the corrosion-resistant layer are tightly combined without adhesive, so that the problem of electric conduction of a metal reamed bolt can be well solved, and the service life of the metal reamed bolt is prolonged. According to the reamed bolt, electric shock caused by current on the reamed bolt can be avoided, meanwhile, the service life of the reamed bolt in a corrosion environment can be prolonged, the coatings are tightly combined, and the coatings cannot fall off due to assembly.

Description

Technical Field

[0001] The invention relates to the technical field of nano ceramic coatings, in particular to a corrosion-resistant insulating nano ceramic coating used on hinged bolts. Background Art

[0002] Nanoceramics are composite materials made by introducing nano-scale ceramic particles, whiskers, etc. into a ceramic matrix to improve the performance of the ceramic. They improve the room temperature mechanical properties of the matrix material, improve the high temperature performance, and this material has machinability and superplasticity.

[0003] In Chinese patent CN214056782U, the utility model discloses an energy-saving and corrosion-resistant ceramic identification coating, which relates to the technical field of ceramic identification coatings. An energy-saving and corrosion-resistant ceramic identification coating includes an identification coating body, and the identification coating body includes a surface layer and a base layer. The base layer is also called an identification layer, which is white and has a thickness of 0.10 to 0.15 mm, and the surface layer is green and has a thickness of 0.10 to 0.15 mm. The utility model can improve the corrosion resistance of the identification coating through the polyethylene anti-corrosion layer, and the anti-oxidation layer is made of an anti-oxidation material, which can improve the oxidation resistance of the identification coating. Then the resin anti-rust layer has a higher density to prevent the corrosive medium from corroding the metal substrate. Finally, the wear-resistant layer can reduce wear and increase the service life.

[0004] The existing hinged bolts may require a lot of force to tighten them. During the tightening process, the coating on the surface of the hinged bolts may fall off. When left for a long time, the hinged bolts may rust at the places where the coating on the outer wall of the hinged bolts has fallen off, thereby affecting their quality of use. It may cause the parts connected by the hinged bolts to loosen. At the same time, if the parts connected by the hinged bolts have leakage, current may exist in the hinged bolts. When personnel disassemble the hinged bolts to inspect the leaking parts, they may be electrocuted, posing a serious safety hazard.

[0005] Therefore, in view of the above problems, a corrosion-resistant insulating nano-ceramic coating for use on hinged bolts is proposed. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the problem that a great force may be required to tighten the bolt is solved. During the tightening process, the coating on the surface of the hinged bolt may fall off. When placed for a long time, rust may occur at the place where the coating on the outer wall of the hinged bolt falls off, thereby affecting its quality of use and possibly causing the parts connected by the hinged bolt to loosen. At the same time, if the parts connected by the hinged bolt have leakage, current may exist in the hinged bolt. When personnel disassemble the hinged bolt to inspect the leaking parts, they may be electrocuted, posing a serious safety hazard.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the corrosion-resistant insulating nano-ceramic coating used on the hinged bolt described in the present invention comprises a hinged bolt body, the outer wall of the hinged bolt body is prepared with a base layer, and the outer wall of the primer layer is prepared with a corrosion-resistant insulating nano-ceramic coating structure; the corrosion-resistant insulating nano-ceramic coating structure comprises a nano-ceramic coating body, an insulating layer, and a corrosion-resistant layer, the outer wall of the nano-ceramic coating body is provided with an insulating layer, and the outer wall of the insulating layer is provided with a corrosion-resistant layer.

[0008] Preferably, the bottom layer, the nano-ceramic coating body, the insulating layer and the corrosion-resistant layer are tightly combined without adhesive.

[0009] Preferably, the structure of the main coating of the nano-ceramic coating is less than 100 nanometers, the particle size of the nano-metal ceramic material is less than 100 nanometers, and the particles include nano-metal ceramic powders such as TiO2, Fe2O3, SiO, inorganic salts and nano-scale clay.

[0010] Preferably, the spraying method of the nano-ceramic coating body is thermal spraying, and the spraying material is heated to a molten or semi-molten state, and sprayed using a high-speed flame flow.

[0011] Preferably, the bottom layer is prepared first, and the surface of the hinged bolt body is roughened by sandblasting before spraying, and the surface should be cleaned after roughening.

[0012] Preferably, the bottom layer spraying method is a supersonic plasma process, and the prepared coating is uniform.

[0013] Preferably, each coating can be used after preparation without drying time.

[0014] Preferably, the material of the insulating layer is set to be a ceramic coating, and the material of the corrosion-resistant layer is set to be a metal ceramic material.

[0015] Preferably, the thicknesses of the nano-ceramic coating body, the insulating layer and the corrosion-resistant layer are all consistent, and the coating thickness is 200-300 um.

[0016] Preferably, after all coatings on the outer wall of the hinged bolt body are sprayed, the bolt can be put into use without curing time.

[0017] The present invention is beneficial in that:

[0018] 1. The main body of the nano-ceramic coating is a mixture of nano-ceramic powder and nano-scale metal powder to form a dense high-hardness ceramic coating, which is convenient for improving the hardness of the main body of the nano-ceramic coating and ensuring the stability of the main body of the nano-ceramic coating. The insulating layer is convenient for ensuring the insulating properties of the coating, avoiding electric shock and avoiding safety hazards;

[0019] 2. Each layer of coating is semi-metallurgically bonded, which makes the connection between the coatings tighter, avoiding the coating from falling off after the hinged bolt is tightened and exposed to wind and sun for a long time, which makes the coating unable to protect the hinged bolt. The adhesion of the coating is better, which increases the service life of the hinged bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is an enlarged schematic diagram of the overall coating structure of the present invention;

[0022] Figure 2 This is an enlarged schematic diagram of the corrosion-resistant insulating nano-ceramic coating structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the enlarged structure of the connection between the corrosion-resistant insulating nano-ceramic coating structure and the bottom layer of the present invention.

[0024] In the figure: 1. hinged bolt body; 2. bottom layer; 3. corrosion-resistant insulating nano-ceramic coating structure; 301. nano-ceramic coating body; 302. insulating layer; 303. corrosion-resistant layer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] See also Figures 1 to 3As shown, a corrosion-resistant insulating nano-ceramic coating used on a hinged bolt comprises a hinged bolt body 1, the outer wall of the hinged bolt body 1 is prepared with a bottom layer 2, and the outer wall of the bottom layer 2 is prepared with a corrosion-resistant insulating nano-ceramic coating structure 3; the corrosion-resistant insulating nano-ceramic coating structure 3 comprises a nano-ceramic coating body 301, an insulating layer 302, and a corrosion-resistant layer 303, the thickness of the nano-ceramic coating body 301, the insulating layer 302, and the corrosion-resistant layer 303 are all consistent, and the coating thickness is 200-300 microns, the outer wall of the nano-ceramic coating body 301 is provided with an insulating layer 302, and the outer wall of the insulating layer 302 is provided with a corrosion-resistant layer 303, and there is no adhesive between the primer layer 2, the nano-ceramic coating body 301, the insulating layer 302, and the corrosion-resistant layer 303.

[0028] See also Figures 1 to 3 As shown, a corrosion-resistant insulating nano-ceramic coating is used on a hinged bolt. The nanoparticles of the nano-ceramic coating main body 301 include nano-metal powders such as TiO2, Fe2O3, SiO, inorganic salts and nano-scale clay. The nano-ceramic coating main body 301 is a dense high-hardness ceramic coating, which is convenient for improving the hardness of the nano-ceramic coating main body 301 and ensuring the stability of the nano-ceramic coating main body 301. The spraying method of the nano-ceramic coating main body 301 is thermal spraying, and the spraying material is heated to a melted or semi-melted state, and is sprayed using a high-speed flame flow.

[0029] See also Figure 1 As shown, a corrosion-resistant insulating nano-ceramic coating for a hinged bolt, the bottom layer 2 is prepared first, and the surface of the hinged bolt body 1 is roughened by sandblasting before spraying, and the surface should be cleaned after sandblasting. The spraying method of the bottom layer 2 is a supersonic plasma process, and the prepared coating is uniform, and the thickness of the nano-ceramic coating body 301, the insulating layer 302, and the corrosion-resistant layer 303 are all consistent, and the coating thickness is 200-300um. After all the coatings are sprayed, they can be put into use without curing time.

[0030] See also Figures 1 to 3 As shown, a corrosion-resistant insulating nano-ceramic coating used on a hinged bolt, the material of the insulating layer 302 is set to a ceramic coating, and the material of the corrosion-resistant layer (303) is set to a metal ceramic material; the ceramic coating has a very high insulating property, which can well protect the metal structure, facilitate ensuring the insulating property of the coating, and avoid electric shock. Compared with traditional anti-corrosion materials, the metal ceramic coating has a longer service life and better anti-corrosion performance, which can increase the service life of the hinged bolt body 1.

[0031] See also Figures 1 to 3As shown, a corrosion-resistant insulating nano-ceramic coating used on a hinged bolt can be put into use without curing time after all coatings on the outer wall of the hinged bolt body 1 are sprayed.

[0032] Working principle: First, the surface of the hinged bolt body 1 is roughened by sandblasting to make the surface texture of the hinged bolt body 1 coarser. Then, the residual grit and dust on the surface of the hinged bolt body 1 are cleaned. Then, a uniform bottom layer 2 is prepared on the outer wall of the hinged bolt body 1 that has been roughened by sandblasting. Then, a nano-ceramic coating surface layer is sprayed on the outer wall of the bottom layer 2. When spraying the nano-ceramic coating, the raw material is heated to a melted or semi-melted state, and it is sprayed on the bottom layer 2 by a high-speed flame flow. The insulating layer 302 and the corrosion-resistant layer 303 are completed at the same time when preparing the nano-ceramic coating. After all the coatings are sprayed, they can be put into use without curing.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt, characterized in that: It comprises a hinged bolt body (1), the outer wall of the hinged bolt body (1) is prepared with a bottom layer (2), and the outer wall of the primer layer (2) is prepared with a corrosion-resistant insulating nano-ceramic coating structure (3); The corrosion-resistant insulating nano-ceramic coating structure (3) comprises a nano-ceramic coating body (301), an insulating layer (302), and a corrosion-resistant layer (303); the outer wall of the nano-ceramic coating body (301) is provided with the insulating layer (302), and the outer wall of the insulating layer (302) is provided with the corrosion-resistant layer (303).

2. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: The bottom layer (2), the nano ceramic coating body (301), the insulating layer (302) and the corrosion resistant layer (303) are tightly bonded without any adhesive.

3. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: The structure of the coating of the nano ceramic coating body (301) is less than 100 nanometers, the particle size of the nano metal ceramic material is less than 100 nanometers, and the particles include nano metal ceramic powders such as TiO2, Fe2O3, SiO, inorganic salts and nano-scale clay.

4. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: The nano ceramic coating body (301) is sprayed by thermal spraying, wherein the spraying material is heated to a melted or semi-melted state, and sprayed by high-speed flame flow.

5. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: The bottom layer (2) is prepared first, and before spraying, the surface of the hinged bolt body (1) is roughened by sandblasting, and the surface is cleaned after roughening.

6. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 5, characterized in that: The bottom layer (2) is sprayed using a supersonic plasma process, and the prepared coating is uniform.

7. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: After the coatings are prepared, they can be used without drying time.

8. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: The material of the insulating layer (302) is set to be a ceramic coating, and the material of the corrosion-resistant layer (303) is set to be a metal ceramic material.

9. The corrosion-resistant insulating nano-ceramic coating for hinged bolts according to claim 1, characterized in that: The thicknesses of the nano-ceramic coating body (301), the insulating layer (302) and the corrosion-resistant layer (303) are all consistent, and the coating thickness is 200-300 um.

10. The corrosion-resistant insulating nano-ceramic coating for use on a hinged bolt according to claim 1, characterized in that: After all coatings on the outer wall of the hinged bolt body (1) are sprayed, the body can be put into use without requiring any curing time.

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