JPH0524015A - Inorganic panel and manufacture thereof - Google Patents

Abstract

PURPOSE:To execute relieving of surface pattern and the designing of surface having material feel, natural touch, texture or the like with a rear casting surface. CONSTITUTION:Firstly, a pattern mold 2, with which desired surface pattern is produced, is arranged in a form 1. Then, after facing material 5 is sprayed on the surface of the pattern mold 2, cement slurry 6 is poured in the form 1. After the curing and demolding of the slurry, the surface of the resultant inorganic panel is brushed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an inorganic plate. More specifically, the present invention relates to a method for producing a cement-based inorganic board that is useful as an exterior material or the like, which is capable of patterning a surface pattern and designing a surface having a material feel, a natural feel, a texture, and the like. It is a thing.

[0002]

2. Description of the Related Art Conventionally, cement-based inorganic boards have been widely used as exterior materials for buildings such as houses. Regarding this cement-based inorganic board, various ones excellent in various functions such as heat insulation and sound insulation have been developed so far,
Improvements in appearance and design have been actively studied, and a wide variety of surface patterns have been formed. For example, an embossed inorganic plate with a brick pattern as shown in Fig. 2 (a)
Alternatively, there is also known an inorganic plate (c) in which a surface material such as a tile (a) or a stone material is driven into the surface as illustrated in FIG.

As a manufacturing method for forming such various surface patterns and manufacturing an inorganic plate having an improved appearance design property, the casting method is applicable to any surface pattern. It is also known to be advantageous.

[0004]

However, as for the inorganic plate manufactured by the conventional casting method, as shown in FIG. 2, for example, as shown in FIG. 2, a skin layer of cement having a smooth pattern surface on the surface of the inorganic plate (a). Therefore, it is difficult to form a surface having a natural feeling such as washing out.

On the other hand, the tile (a) as shown in FIG.
In the case of an inorganic plate (c) with a surface material such as the one imprinted on the surface, there is a feeling of texture and texture compared to the inorganic plate (a) of FIG.
Although it is excellent in appearance design and can improve surface durability, it has a drawback that steps such as disposing the surface material in the mold and joint treatment are troublesome and time-consuming. Therefore, the productivity of the cement-based inorganic board by driving the surface material is not good, and the cost is high.

In order to solve such a defect, a surface having a feeling of cracking stones or a natural feeling may be designed by using a washing method and a surface treatment together. In the method, since the curing retarder is applied to the surface of the surface material opposite to the surface to be the driving surface, there is a drawback that the above-mentioned treatment cannot be performed on the original driving surface. There is also a problem that it is difficult to deal with complicated patterns. Furthermore, the process of controlling the curing conditions, washing out, etc. is complicated and very troublesome.

The present invention has been made in view of the circumstances as described above, solves the drawbacks of the conventional method for producing an inorganic plate, provides a pattern of the surface pattern, and gives a feeling of texture, a natural feeling,
It is an object of the present invention to provide a new method for producing an inorganic plate, which allows the surface with texture to be designed on the lower surface of the casting.

[0008]

In order to solve the above problems, the present invention provides a pattern mold for forming a desired surface pattern in a mold, and then spreads a surface material on the surface of the pattern mold. After that, a cement slurry is injected to cure and demold, and the surface of the inorganic plate is brushed.

That is, the method for manufacturing an inorganic plate of the present invention is carried out along the steps shown in FIG. 1, for example. <a> First, a mold (1) having a predetermined size is set. <B> Next, a pattern mold (2) for forming a desired surface pattern is placed in the mold frame (1). In this example, in order to form an embossed surface having joints such as a brick pattern, a convex portion (3) is formed in a portion corresponding to the joint portion, and a concave portion (4) is formed in a portion corresponding to the surface portion. The pattern type with unevenness is provided. Of course, the shape and size of the pattern type (2) are not limited to this example, and a pattern type having an arbitrary configuration can be appropriately adopted.

<C> For example, in the case of the pattern type (2) for forming the joints on the inorganic plate as shown in FIG. 1, only the concave part (4) corresponding to the surface part of the inorganic plate is a mikage stone. Crushed stones, etc., aggregates such as silica sand, or surface materials (5) such as beads are sprinkled. <D> After that, the cement component such as ordinary Portland cement is mixed with an aggregate such as silica sand and an additive, and the cement slurry (6) adjusted to a predetermined specific gravity is injected.

<E> After curing and curing, the inorganic plate (7) is removed from the mold. <F> Then, the surface portion (9) of the inorganic plate (7) is brushed with a resin or a brush roll (8) made of metal or the like to remove the surface material having a weak adhesive force with the cement, and the surface portion (9) is not smooth, and a cement-based inorganic board having a design property such as a feeling of material such as a cracked stone feeling, a feeling of washing out, a natural feeling, and a texture is obtained.

[0012]

In the present invention, by spraying the surface material and brushing, it is possible to easily and easily cast a non-smooth surface having a complicated pattern and having the same material feeling, natural feeling, texture, etc. It can be formed on the lower surface. Since the surface portion of the inorganic plate is covered with a surface material such as crushed stone or aggregate, surface durability is improved and quality deterioration due to air, water or the like can be prevented. Also, the manufacturing cost is reduced.

[0013]

EXAMPLES Specific examples of the inorganic plate obtained by the manufacturing method of the present invention along the steps of FIG. 1 will be described below. A brick pattern (joint depth: 10 m / m) is placed at the bottom of the frame, and a crushed mikage stone (size: 3 to 5 m / m) is placed only on the surface recess of the pattern corresponding to the surface of the inorganic plate. Sprayed. After this, cement slurry (Portland cement / silica sand = 1/2, mixed water ratio: 25%) was added to a thickness of 50 m /
It was injected so as to be m, and wet heat treatment was performed at 60 ° C. for 10 hours to remove the mold. Next, the surface of the inorganic plate was brushed with a brush roll to remove the crushed mikage stone, which had weak adhesion to cement.

A brick-like natural-like cement-based inorganic plate having a surface portion covered with crushed mikage and a joint portion formed of a cement skin layer was obtained. Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in terms of the type of surface material, the pattern of the pattern type, the shape and size, and the details such as the components and composition of the cement slurry.

[0015]

As described in detail above, according to the present invention, a smooth surface having a complicated pattern and a feeling of washing out, such as a material feeling, a natural feeling, and a texture can be easily and easily obtained on the lower surface of the casting. . The surface durability of the inorganic plate is improved, and quality deterioration due to air, moisture, etc. can be suppressed. Manufacturing costs are also reduced.

[Brief description of drawings]

FIG. 1 is a process sectional view showing an embodiment of a method for manufacturing an inorganic plate of the present invention.

FIG. 2 is a perspective view illustrating a conventional cement-based inorganic board.

FIG. 3 is a perspective view showing another example of a conventional cement-based inorganic board.

[Explanation of symbols]

1 formwork 2 pattern type 3 convex 4 recess 5 surface materials 6 cement slurry 7 Cement-based inorganic board 8 brush rolls 9 surface

Claims (3)

[Claims] 1. A pattern mold for forming a desired surface pattern is arranged in a mold, and then a surface material is sprayed on the surface of the pattern mold, and then cement slurry is injected to cure and demold the mold.
A method for producing an inorganic plate, which comprises brushing the surface of the inorganic plate. 2. The method according to claim 1, wherein the surface material is applied only to the pattern-shaped surface recesses. 3. The production method according to claim 1, wherein crushed stone, aggregate or beads is sprayed as a surface material.