JPH04123260U - Composite plating - Google Patents

Abstract

(57) [Summary] [Purpose] To create a plating film with self-lubricating and wear-resistant effects. [Structure] A composite plating method in which composite particles in which the outer surface of hard solid particles is coated with slippery soft particles in the form of a capsule wall film are dispersed in the plating film.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a composite plating method that maintains hardness as a plating film and has self-lubricating properties. Regarding the law.

0002

[Conventional technology]

In recent years, the need for plating has increased in the industrial machinery field, and the demand for plating films has increased. In many cases, it is not possible to respond to diversification with a single function, which is why composite plating is attracting attention. It is. Composite plating is the idea of developing materials by combining one substance with another substance. It is thought that this method was incorporated into surface treatment technology. Composite plating method uses hard By dispersing and containing functional particles with excellent lubricity in the plating film, mechanical devices It has the effect of improving the wear resistance and self-lubricating properties of the bearing and sliding parts of the bearings and sliding parts.

0003 Conventionally, plating films have been given various properties such as self-lubricating properties, abrasion resistance, and water repellency. Therefore, it is one of the composite plating methods in which functional particles are dispersed in the plating film. , diamond, alumina, or silicon carbide in electroless nickel plating film There are some types that contain hard solid particles dispersed in them to form a plated layer with good wear resistance. However, depending on the particle size of the dispersed particles, it may polish the mating material or may not be as durable as expected. It has the disadvantage that no abrasive effect can be obtained.

0004 In addition, as another composite plating method, molybdenum disulfide and fluorine are added to the plating film. Dispersing lubricating soft particles such as resin or graphite increases the self-lubricating effect. However, as the hardness decreases as a plating film, it is not effective under high loads. There are some serious drawbacks.

[0005] In addition, in order to incorporate the advantages of the above plating method, we have developed both hard solid particles and soft particles. Dispersed in the plating film to achieve both wear resistance and self-lubricating effects. There are different plating methods, but due to the difference in the specific gravity of the particles, it is necessary to uniformly mix them into the plating film at a certain mixing ratio. It is difficult to disperse and contain them all at once.

[0006]

[Problem that the idea aims to solve]

In composite plating in which the hard solid particles described above are dispersed in the plating film, the hard solid particles are dispersed in the plating film. If the body particles are large (10 microns or more) and protrude from the surface, they will not slide for a long time. If you do so, the other material will be polished. Also, if the particles are small (1 micron or less), Coagulation tends to occur in the plating bath, and the content of particles in the plating film decreases, resulting in poor wear resistance. A problem occurs in which the abrasive effect is reduced.

[0007] In addition, the method of dispersing lubricating soft particles in the plating film has a lubricating effect. However, the hardness of the coating decreases, so even if the friction coefficient is excellent, it will not work in high load areas. In many cases, the desired effect is not achieved. In addition, as dispersed particles, Even if hard particles and soft particles are mixed and dispersed, due to the difference in specific gravity of the particles, It is difficult to uniformly disperse and contain it at a constant mixing ratio in the plating film. There Therefore, this invention has self-lubricating properties in composite plating containing dispersed particles. The purpose of this invention is to provide a composite plating film that is highly wear-resistant.

[0008]

[Means to solve the problem]

The composite plating according to the present invention has wear resistance and self-sliding properties in order to achieve the above objectives. It is characterized by containing particles that have both properties dispersed in the plating film. It is something that

[0009]

[Effect]

In the composite plating according to the present invention, soft particles are coated on the outer surface of hard solid particles with a capsule wall film. It is coated in a shape and dispersed in the plating film, and is applied to bearings and sliding parts of mechanical equipment. When used, it can be used to form a tacky film with excellent lubricity and abrasion resistance.

0010

【Example】

Composite plating according to an embodiment of the present invention will be explained based on the drawings. Figures 1 to 3 are FIG. 1 shows a conventional example in which hard solid particles 1 are dispersed and contained in a plating film 2. be. FIG. 2 shows a plating film 2 in which lubricating soft particles 4 are dispersed and contained. figure 3 is a state in which hard solid particles 1 and lubricating soft particles 4 are dispersed and contained in a plating film 2. state. Each number 3 is the material.

[0011] FIG. 4 shows one embodiment of the present invention, and to explain it specifically, the outer surface of the hard solid particle 1 is The surface is coated with lubricating soft particles 4 in the form of a capsule wall film to form composite particles 5. . The composite particles 5 are dispersed and contained in the plating film 2 to obtain a composite plating film. 3 is prime It is a material. With this structure, it has self-lubricating properties and has wear-resistant plating. In order to ensure a film, hard solid particles 1 and lubricating soft particles 4 are dispersed and contained. A film with excellent wear resistance and lubricity can be obtained without any friction, making it suitable for sliding parts of mechanical equipment. and can demonstrate sufficient functionality.

0012

[Effect of the idea]

The composite plating according to the present invention includes lubricating soft particles in the plating film in the form of a capsule wall film. Since this plating method involves dispersing hard solid particles coated on The particle size of solid particles can be reduced, and large hard solid particles will not protrude onto the plating surface. This prevents the sliding surface from being exposed and polished, which accelerates wear. Also , even when the particle size of the hard solid particles is reduced, the outer diameter of the hard solid particles has a lubricating property. Since the quality particles are coated with a capsule wall film to form composite particles, the overall particle size is small. 1 micron or more, it suppresses particle agglomeration and prevents particle plating. It is also possible to suppress a decrease in the content in the film.

[0013] Furthermore, compared to conventional composite plating, which has lubricity, composite particles are dispersed in the plating, making it easier to coat the skin. Because the hardness of the entire film increases, wear is suppressed even under high loads, and the film has self-lubricating properties. Not only can a sticky film be obtained, but it also contains soft and hard components separately. Since there is no such thing, it can be uniformly included in the plating film at a certain mixing ratio. It is.

[Brief explanation of drawings]

[Figure 1] Conventional example of a taming method in which hard solid particles are dispersed.

[Figure 2] Conventional example of a mating method in which lubricating soft particles are dispersed.

[Figure 3] Conventional example of a taming method in which lubricating soft particles and hard solid particles are dispersed.

[Figure 4] Composite plating method using dispersed composite particles of the present invention

[Explanation of sign]

1 Hard solid particles 2 Plating film 3 Material 4 Lubricating soft particles 5 Composite particles

Claims (1)

[Scope of utility model registration request] Claim 1: Composite plating in which functional particles are dispersed and contained in a plating film, characterized in that the outer surface of hard solid particles is coated with soft particles in the form of a capsule wall film, and the functional particles are dispersed and contained in the plating film. Composite plating.