JP2711912B2 - Wear-resistant plate - Google Patents

Description

The present invention relates to a wear-resistant plate. That is, the present invention relates to a wear-resistant plate in which a plate-shaped base material is coated with a film made of ceramics and resin, and thus has excellent wear resistance and is widely used for various applications.

"Prior art" As such a wear-resistant plate, the following was conventionally used.

First, after mixing the ceramic particles and the resin particles and disposing them on the surface of the plate-shaped base material, the resin is heated and melt-hardened. A bonded, wear-resistant plate was used.

Second, a mixture of ceramic particles and a two-part resin composed of a main material and a curing agent is applied to the surface of a plate-shaped base material, and then the plate-shaped base material is formed as a resin-containing resin film. A wear-resistant plate bonded on top was used.

Third, using a resin sheet in the form of a film in which ceramic particles and the like are mixed in advance, disposing the resin sheet on the surface of the plate-shaped base material, and then heating and melting and curing the resin. A wear-resistant plate bonded on a plate-like base material as a coating has also been used.

Fourth, the ceramic is sprayed on the surface of the plate-shaped base material,
A wear-resistant plate formed with a sprayed ceramic film has also been used.

"Problems to be Solved by the Invention" The following problems have been pointed out in such a conventional wear-resistant plate.

That is, in the first, second, third, and fourth wear-resistant plates as the above-described conventional examples, the thermal expansion coefficient and the elastic modulus of the coating and the plate-shaped base material are all different. Therefore, in combination with the fact that the coating is adhered to only one surface such as the surface of the plate-shaped base material, such abrasion-resistant plates may be heated, subjected to an impact load, or deteriorated over time. If it occurs, the coating may peel off from the plate-shaped base material, which has been a problem.

That is, in each of the abrasion-resistant plates of the conventional example, the coating strength of the coating and the plate-shaped base material was difficult, the coating was easily peeled off, and defects in durability were pointed out.

In the fourth conventional example, the following problem has been pointed out. That is, in the wear-resistant plate formed with the ceramic sprayed coating, there is a problem that equipment used for the thermal spraying is very expensive and extremely expensive.

 In the prior art, such a point was pointed out.

The present invention has been made in view of such circumstances, and has been made in order to solve the problems of the above-described conventional example, in which a coating made of ceramics and resin is used to integrally connect both surfaces of a plate-shaped base material through through holes. An object of the present invention is to propose a wear-resistant plate which is prevented from peeling off by being coated thereon, has excellent durability, and is also excellent in cost.

"Means for Solving the Problems" The technical means of the present invention for achieving the object is as follows.

That is, this wear-resistant plate has the following plate-shaped base material and coating.

The plate-shaped base material has a plurality of through-holes formed therein. The coating is made of a coating made of ceramics and resin, which integrally covers both surfaces of the plate-shaped base material through the through holes.

"Operation" The present invention operates as follows because it is constituted by such means.

That is, this wear-resistant plate is formed by integrally coating both surfaces of a plate-shaped base material through a plurality of through holes with a coating made of ceramics and resin.

Although the thermal expansion coefficient and the elastic modulus of the coating and the plate-shaped base material are different from each other, the peeling of the coating can be prevented even if the coating is later heated, subjected to an impact load, or further deteriorates due to use over time. . In other words, in this wear-resistant plate, the coating is formed by using the through-hole to strongly cover both surfaces of the plate-shaped base material integrally, so that peeling from the plate-shaped base material is reliably prevented.

Moreover, such a wear-resistant plate is easily and easily formed by a predetermined plate-shaped base material and a coating.

"Examples" Hereinafter, the present invention will be described in detail based on examples shown in the drawings.

FIG. 1 is a front sectional view showing an embodiment of the present invention. FIG. 2 is a front sectional view showing a stage during the molding. FIG. 3 is a perspective view of the plate-shaped base material.

 First, the configuration and the like will be described.

As shown in FIG. 1 and the like, the wear-resistant plate 1 integrally covers both surfaces of the plate-shaped base material 3 having a plurality of through-holes 2 formed therein and the plate-shaped base material 3 through the through-holes 2. And a coating 4 made of ceramics and resin.

These will be described in detail. First, the plate-shaped base material 3 has a flat plate shape as shown in FIG. 3, and a plurality of through holes 2 are formed. In the illustrated example, the through holes 2 are circular at regular intervals, but may be square or other various shapes, and the intervals and number thereof may be set as appropriate. The material of the plate-shaped base material 3 only needs to be superior in heat resistance to the entire wear-resistant plate 1 'in the middle of molding, that is, the coating material 4' shown in FIG. Is used.

Next, the coating film 4 is made of a composite material of ceramic powder and fine particles, and a resin obtained by mixing and melting and hardening the resin. 3 are integrally adhered to both surfaces. In addition, as the ceramics, those obtained by mixing powdery or fine-grained materials with fibrous materials are also used.

Now, such a coating 4 is formed by any of the following first, second, and third. That is, first, after mixing the ceramic particles and the resin particles and disposing them on the front and back surfaces of the plate-shaped base material 3, the resin is once melted by heating. Then, the heating is continued to further cure the resin, and as a resin coating 4 containing ceramics, as shown in FIG.

In the example of FIG. 2 in the middle of molding, the ceramic and resin coating material 4 ′ in the middle of molding is pressed from above and below by the upper and lower press tables 5 or frames simultaneously with heating, so that the outer surface is flat. It is formed as follows. FIG. 2 shows a stage in the middle of molding. Immediately after the molding, the coating material 4 ′ is transferred and filled into each through hole 2 of the plate-shaped base material 3.

The coating 4 is formed as in the following second example. That is, ceramic particles, a two-component resin composed of a viscous liquid base material and a curing agent and generally used as an adhesive are mixed and applied to the front and back surfaces of the plate-shaped base material 3. Then, after heating, it is adhered to both surfaces of the plate-shaped base material 3 through the through-holes 2 as a resin film 4 containing ceramics, thereby covering the same.

Further, the coating 4 is formed as in the following third example. That is, a resin sheet in the form of a film in which ceramic particles are mixed in advance is used, and the resin sheet is arranged on the front and back surfaces of the plate-shaped base material 3 and then heated to once melt the resin. The resin is further cured by continuing the heating, and is adhered to both surfaces of the plate-shaped base material 3 through the through-holes 2 as the resin film 4 containing ceramics, thereby covering the resin film.

The hardness and wear resistance of the coating 4 of the wear-resistant plate 1 formed by the above-described first and second methods can be freely adjusted by appropriately changing the amount of ceramics and resin, that is, the content of ceramics in the resin. Can be set to

 The above is the description of the configuration and the like.

 The operation and the like will be described below.

The wear-resistant plate 1 is formed by integrally covering the front and back surfaces of a plate-shaped base material 3 with a plurality of through holes 2 through a coating 4 made of ceramic and resin. The coating 4 serving as a composite material is excellent in wear resistance, corrosion resistance, and the like, and is used for various applications.

Thus, although the wear-resistant plate 1 has a different thermal expansion coefficient and elastic modulus between the coating 4 and the plate-shaped base material 3, the wear-resistant plate 1 is post-heated and subjected to thermal stress or subjected to impact load such as bending load. , And even if the material deteriorates due to use over time,
Peeling of the coating 4 is prevented and the durability is excellent.

That is, in this wear-resistant plate 1, the coating 4
The front side and the back side are connected and integrated by utilizing, and both sides of the plate-shaped base material 3 are integrally and strongly covered. Therefore, the coating 4 is reliably prevented from being separated from the plate-shaped base material 3 having different coefficients of thermal expansion, elasticity, and the like.

Moreover, such a wear-resistant plate 1 is easily and easily formed by the predetermined plate-shaped base material 3 and the coating film 4 as described above in the first, second and third embodiments.

 The above is the description of the operation and the like.

"Effects of the Invention" The wear-resistant plate according to the present invention, as described above, is formed by coating both surfaces of the plate-shaped base material integrally through the through-holes thereof with the coating made of ceramics and resin,
The following effects are exhibited.

In other words, even if the material is deteriorated due to being heated or subjected to an impact load or being used over time, the peeling of the coating from the plate-like base material is prevented, the bonding strength between the two is improved, and the durability is remarkably excellent. Become.

In addition, expensive equipment such as a wear-resistant plate having a conventional thermal sprayed coating is not required, and molding can be performed easily and easily.

As described above, the effects exhibited by the present invention are remarkable and large, for example, the problems existing in this type of conventional example are eliminated.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment of a wear-resistant plate according to the present invention. FIG. 2 is a front sectional view showing a stage during the molding. FIG. 3 is a perspective view of the plate-shaped base material. DESCRIPTION OF SYMBOLS 1 ... Wear-resistant board 1 '... Wear-resistant board in the middle of forming 2 ... Through-hole 3 ... Plate-shaped base material 4 ... Coating 4' ... Coating material 5 ... Press stand

Claims (1)

(57) [Claims] A plate-like base material having a plurality of through-holes formed therein;
Integrally covering both surfaces of the plate-shaped base material through the through hole,
A wear-resistant plate comprising: a coating made of ceramics and resin.