TWM618746U - Buckle - Google Patents

Abstract

A fastener includes a body and an outer covering layer coated on the body. The outer coating includes a plurality of metal powder particles, a plurality of nano-zinc particles, a plurality of graphene particles uniformly dispersed, and a method for making the metal powder, the nano-zinc particles, and the graphene particles Adhesives mixed with each other. The outer coating uses the metal powder particles as a sacrificial anode to prevent the body from being corroded, and uses the dense structure formed by the zinc nanoparticle, with stable grapheneization, can fill structural voids, and is easy to interact with others. The properties of organic compounding enable the zinc nano particles and the graphene particles to form a protective mechanism with a good barrier effect, so it can produce an additive and excellent anti-corrosion effect on the body.

Description

Fasteners

The new model relates to a fixed workpiece, especially a fastener.

Rust and corrosion are the main reasons that affect the service life of various workpieces. If the used workpieces are particularly susceptible to rust or corrosion, frequent maintenance must be carried out, and work safety and even public safety may be affected. At present, the anti-corrosion mechanism of workpieces such as screws usually uses a coating on the outside to protect the main material. However, if the performance of the coating itself is not good, the anti-corrosion efficiency is also quite limited, which cannot effectively extend the service life of the workpiece. Optimize the reliability of use.

Therefore, the purpose of the present invention is to provide a fastener with excellent anti-corrosion performance.

Therefore, the fastener of the present invention includes a body and an outer covering layer coated on the body.

The outer coating layer includes a plurality of metal powder particles, a plurality of nano-zinc particles, a plurality of graphene particles uniformly dispersed, and a method for making the metal powder, the nano-zinc particles, and the graphene particles Adhesives mixed with each other.

The effect of the present invention is that the outer coating uses the metal powder particles as a sacrificial anode to prevent the body from being rusted, and uses the dense structure formed by the zinc nanoparticle, with stable grapheneization and can fill The characteristics of hollow structure and easy compounding with other organic substances enable the zinc nano particles and the graphene particles to form a protective mechanism with a good barrier effect, so that it can produce an additive and excellent anti-corrosion effect on the body.

Refer to FIG. 1, which is an embodiment of the new type fastener. This embodiment includes a main body 1 and an outer covering 2 coated on the main body 1. It should be noted that, in this embodiment, the description is based on the case where the type of the main body 1 is a screw, and the material of the main body 1 is metal, but in actual implementation, the main body 1 can be of other types Artifact.

The outer coating layer 2 includes a plurality of metal powder particles, a plurality of nano-zinc particles, a plurality of graphene particles, an organic solvent used to form a nano-particle solution with the nano-zinc particles, and a A binding agent used to mix the metal powder particles, the nano-zinc particles, and the graphene particles with each other. The metal powder particles contain flake zinc powder and flake aluminum powder, the binder is epoxy silane, and the organic solvent is preferably selected from propylene glycol, polyethylene glycol, and diacetone alcohol, and is preferably selected from Propylene glycol. Wherein, in the nanoparticle solution, the weight percentage concentration of the nanozinc particles is 0.05 to 0.30%.

The outer coating 2 is formed by coating a paint on the main body 1 in a centrifugal paint spraying method, and then sintering at a temperature of 280-320° C. and then cooling to room temperature. If necessary, the aforementioned centrifugal paint spinning, sintering, and cooling processes can be repeated 2 to 3 times, so as to form the outer coating 2 with a thickness that meets the requirements. The specific components of the coating are calculated by weight percentage, containing 35% binder, 5% corrosion inhibitor, 10% organic solvent, 0.5% graphene particles, 0.1% nano-zinc particles, 10% % Filler, 0.4% dispersant, 25% flake zinc powder, 5% flake aluminum powder, and the other 9% is deionized water as a solvent. In addition, if bubbles are generated in the process of uniformly stirring the coating and sieving to remove particles, an appropriate amount of defoamer can also be added to ensure the quality of subsequent coating.

In order to ensure the anti-corrosion effect of the outer coating 2 on the body 1, the present embodiment is used to perform a salt spray test commonly used to detect the anti-corrosion properties. Refer to the following table 1 for the four groups of experimental examples to perform two rounds and three rounds of coating, sintering, and cooling processes, and whether to add a sealant. According to the four groups of experimental examples in a long-term salt spray environment, whether white rust representing the rust of the outer coating 2 or red rust representing the body 1 has been rusted is generated at a standard time, and then the outer coating can be evaluated. The stability of the coating 2 is used to objectively evaluate the anti-corrosion performance of the coating 2.

Table I serial number Painting process The unit weight of the outer cladding 2 per square meter-(g) 240H (white rust) 720H (red rust) 1008H (red rust) 1200H (red rust) 1 Second round 32 PASS PASS PASS PASS 2 Second round, sealant 35 PASS PASS PASS PASS 3 Three rounds 47 PASS PASS PASS PASS 4 Three rounds, sealant 52 PASS PASS PASS PASS

From the data presented in Table 1 above, it can be seen that the four groups of experimental examples did not produce specific rust under the preset time standard, so they passed the salt spray test standard. Therefore, the overcoating layer 2 uses the metal powder and the high-potential zinc nanoparticle as a sacrificial anode, and uses the dense structure formed by the zinc nanoparticle to coordinate with stable grapheneization and performance. The characteristics of filling structural voids and being easy to recombine with other organics indeed enable the zinc nanoparticle and the graphene particles to jointly form a protective mechanism with a good barrier effect and achieve an excellent anti-corrosion effect.

In summary, in this embodiment of the new fastener, the metal powder particles, the nano-zinc particles, and the graphene particles of the outer coating 2 form a sacrificial anode to protect the body 1. The two mechanisms that form a dense structure to isolate the outside world can play a multiplier effect, and through actual salt spray tests, the outer coating 2 can indeed provide the body 1 with excellent anti-corrosion performance. Therefore, it is indeed possible to achieve the purpose of costing a new type.

However, the above are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

1: body 2: Outer cladding

The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a cross-sectional view illustrating an embodiment of the new fastener.

1: body

2: Outer cladding

Claims (7)

A type of fastener that contains: A body; and An outer coating is applied to the body, and includes a plurality of metal powder particles, a plurality of nano-zinc particles, a plurality of graphene particles, and a layer used to make the metal powder and the nano A binder in which zinc particles and the graphene particles are mixed with each other. The fastener according to claim 1, wherein the body is made of metal. The fastener according to claim 1, wherein the metal powder particles of the outer coating layer contain flake zinc powder and flake aluminum powder. The fastener according to claim 1, wherein the adhesive of the outer coating layer is epoxy silane. The fastener according to claim 1, wherein the outer coating layer further includes an organic solvent for forming a nanoparticle solution with the zinc nanoparticle. The fastener according to claim 5, wherein, in the nanoparticle solution, the weight percentage concentration of the nanozinc particles is 0.05 to 0.30%. The fastener according to claim 5, wherein the organic solvent of the outer coating layer is selected from propylene glycol, polyethylene glycol, diacetone alcohol or any combination thereof.

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