JPS62271705A - Manufacture of light-weight inorganic sheath material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for producing an inorganic exterior material, and more specifically, it is lightweight and has uniform strength. This invention relates to a method for manufacturing inorganic exterior materials such as roof tiles and exterior wall materials.

[Conventional technology and its problems]

Traditionally, inorganic building materials for exterior use include roof tiles, concrete slabs, porcelain, concrete slabs, glue, and bricks.

There are tiles, etc., but these building materials have the disadvantage of being heavy.
In order to reduce the weight of building materials, it is possible to make a base material with pores by hardening the raw material, adding combustible material or foaming material, molding it, and firing it, but the surface of the base material also has holes. It had a poor appearance due to the formation of recesses, and even when glazed it did not provide a smooth surface, making it unsuitable for exterior use.

In addition, it was made of gold and pressure-molded with irregularities that were deep enough to reduce the weight and the legs were rough. It has been considered to glaze the front surface of a substrate that has such unevenness on the back surface, but it is difficult to remove the mold because the legs come off during demolding, and in fact, it is impossible to manufacture.

In addition, when an external wall or roof is constructed by overlapping the edges of conventional flat building materials or building materials with overlapping parts, rainwater will infiltrate from the overlapped part due to capillary phenomenon, and rainwater will infiltrate into the structure due to capillary action. There were also drawbacks. Therefore, it is desirable for the exterior material to prevent water intrusion due to the capillary phenomenon that occurs in the overlapping portion through the holes on the back surface, and to achieve significant weight reduction.

The main purpose of the present invention to solve the above-mentioned problems is to provide a method for industrially and easily producing exterior building materials that are lightweight, have uniform strength, and can prevent the infiltration of rainwater, etc. 6ru.

[Means for solving problems]

The present invention is characterized in that a substantially non-porous inorganic flat plate made of essentially the same material as the inorganic flat plate having a large number of through holes is stacked and integrated with the inorganic flat plate. Manufacturing method of lightweight inorganic exterior material Ruru〇 The above-mentioned porous and non-porous inorganic flat plates are made of concrete, ceramics such as china, and other building materials.

The shape of the above-mentioned through hole is arbitrary, and may be, for example, a polygonal column such as a triangular prism, a quadrangular prism, a hexagonal prism, or a bicylindrical shape. The size and number of the through holes can be appropriately determined by those skilled in the art, taking into consideration the strength, specific gravity, etc. required for the exterior material product. It is important to arrange the through holes so that they do not have any directionality, that is, so that the holes are not lined up in a straight line (for example, in a honeycomb shape K as shown in FIG. 3) to ensure uniform strength of the product. This is preferable from the viewpoint of preventing capillarity.

The above-mentioned flat plate with through holes (porous flat plate) is.

It can be easily manufactured by forming a lotus root-shaped extruded product by extrusion molding and slicing it, or by punching holes in a flat plate obtained by press molding, or by casting molding.

When the above-mentioned inorganic flat plates are made of concrete and contain cement, the above-mentioned lamination and integration can be carried out by laminating the above-mentioned flat plates while they are in an uncured state and making them self-adhesive, or by adding cement between each surface of the hardened flat plates. It means to bond each other by applying an inorganic adhesive material such as adhesive paste. When the inorganic flat plate is a ceramic material made of clay or the like, other ceramics, or clay, the above flat plates are laminated before firing or after bisque firing, and between each surface of the flat plate, for example, mortar made of the same material,
Water glass, I! or other vitrifying material,
It means to join by firing.

The surface of the non-porous flat plate of the integrated laminate may be glazed and fired to provide a surface decoration. The glaze is sprayed,
Ordinary application methods such as pouring are used. The firing temperature is also the temperature normally used for firing after glazing.

[Implementation peak]

Specific embodiments of the present invention will be described with reference to the drawings.

Example 1゜The above formulation was mixed and kneaded. This was molded using an extrusion molding machine to form a mold with 9 holes 4 of 20 x 20 n on each side (i.e. 81 holes in total).
A lotus root extrusion molded body with a square cross section and external dimensions of 300 x 300 m was obtained. This extrusion molded body has a width of 30 f.
Slice into m, 300 x 300 x 30m
A grid plate 2 was obtained.

10,000, using the same extrusion molding machine, we obtained an extrusion molded body with an outside size of 300 x 300 m, and this extrusion molded body had a width of 10 m.
A flat plate 3 was obtained by slicing it into cranes. Before the obtained lattice plate 2 and flat plate 3 were self-hardened, the flat plate 3 was laminated on the lattice plate 2, and then left in air overnight to allow them to self-adhere. Next, a glaze was sprayed onto the surface of the flat plate, fired at 850 degrees, and hydrated to obtain a glazed cement flat plate with holes 1 (see Figures 1 and 2).

Example 2 Flat plates and lattice plates having the same shape as in Example 1 were obtained using ordinary ceramic raw materials such as clay roof tiles instead of cement. Next, a non-perforated flat plate was placed on top of the lattice plate, and both were adhered with the same adhesive mortar. After glazing, it was fired at about 1150 degrees to obtain a glazed ceramic board with holes.

For tiles, exterior walls, etc., an exterior material 1' may be constructed, for example, as shown in FIG. 4, having a step at the overlapping portion. FIG. 5 shows an example in which an exterior wall 1' having such a step is constructed on the housing 6 to form an outer wall. In addition, the above-mentioned overlapping step consists of at least one upper end and at least one lower end provided on the opposing edges of the exterior material, and (-) the upper end. It is generally desirable to have a structure with a large number of holes on the back side as well.

[Action and effect]

According to the method of the present invention, the perforated flat plate is manufactured separately from the non-perforated flat plate, and is then laminated and integrated with the non-perforated flat plate.
It has the following effects: ■Extrusion molding.

It is now possible to manufacture a perforated flat plate by punching holes into a flat plate or by casting, without causing problems such as detachment of the legs, which can occur with pressure forming using conventional molds with uneven surfaces. , it is possible to easily manufacture lightweight exterior materials. ■You can easily change the material of the flat plate, the ratio of the thickness of the porous flat plate and the non-porous flat plate, the dimensions and number of through holes in the porous flat plate, etc.
By making these changes, an exterior material having desired specific gravity and strength can be easily produced. Therefore, the exterior material obtained according to the present invention has the following effects: (1) A dense material can be used, and since it has voids on the back side, it can be lightweight while maintaining relatively high strength.

■Since there is a void only on the back side, it has excellent heat insulation, frost damage resistance, sound insulation, etc. 2. The void can prevent rainwater from entering through the gaps in the exterior material due to capillary action. 0 Any flat plate can be used for the surface layer. 1. For example, it is possible to create a smooth surface. 6.
9. It is possible to create a beautiful and lightweight exterior material with excellent waterproof properties.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a specific example of the exterior material according to the present invention; Fig. 2 is a plan view showing the back side of the exterior material shown in Fig. 1; and Fig. 3 has honeycomb-shaped holes. FIG. 4 is a longitudinal cross-sectional view of the exterior material having one step according to the present invention; and FIG. 5 shows an example of implementation of the exterior material having one step according to the present invention. It is a side partial sectional view. 1.1'77... Exterior material, 2... Grid plate, 3...
Non-porous flat plate 4... through hole, 5... glaze layer, 6... skeleton. Patent applicant: Inax Co., Ltd. Figure 2 2...Grid plate procedure nert) Correction v; B (procedural amendment pursuant to the provisions of Article 17-2, item 1 of the Patent Act) May 29, 1985

Claims (3)

[Claims] (1) A lightweight inorganic exterior characterized by laminating and integrating substantially non-porous inorganic flat plates made of essentially the same material as the flat inorganic plate having a large number of through holes. The manufacturing method of the material. (2) The above-mentioned exterior material has at least one upper end and at least one lower end for overlapping on opposing edges of the exterior material, and a plurality of overlapping ends are also provided on the back side of the upper end. The manufacturing method according to claim 1, wherein the manufacturing method has a number of holes. (3) The manufacturing method according to claim 1 or 2, wherein the exterior material has a glazed layer on its surface.