JPH0911213A - Production of inorganic panel material - Google Patents

Abstract

PURPOSE: To easily produce an inorg. panel material not generating the ply separation caused by freezing in winter. CONSTITUTION: A slurry 10 containing a hydraulic inorg. material, aggregate and water is formed in a form 11 and an anhydrous granular material 13 containing the hydraulic inorg. material and aggregate is formed thereon and, succeedingly, a slurry 14 containing the hydraulic inorg. material, aggregate and water is formed and the whole is compressed from both surfaces thereof to be molded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an inorganic board material which can be used as an outer wall material for construction.

[0002]

2. Description of the Related Art A multi-layered inorganic system prepared by preparing a plurality of slurries prepared by mixing a hydraulic inorganic material, an aggregate and water according to the application, forming these into layers, and press-molding from both sides A method of manufacturing a plate material is known.

[0003]

However, in this manufacturing method, since the upper layer slurry is formed after the film is formed on the surface of the lower layer slurry, the adhesion between the layers is poor, and when it is used in a cold area, it is not There is a problem that delamination occurs due to freezing and thawing. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for producing an inorganic plate material that does not cause delamination due to freezing or the like in winter and is easy to produce.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The method for producing an inorganic plate material described, after forming a slurry containing a hydraulic inorganic material, aggregate and water in the mold,
Anhydrous granular material containing hydraulic inorganic material and aggregate is formed from above, followed by forming a slurry containing hydraulic inorganic material, aggregate and water, and compression molding from both front and back sides. .

[0005]

In the method for producing an inorganic plate material according to claim 1, since the slurry and the water content of the slurry infiltrate into the dry powdery material to harden the powdery material, the interlaminar adhesion is improved and freezing.・ No delamination due to melting. Further, in manufacturing, since the powdery material is put into a part of the conventional forming process of the slurry, it is extremely easy.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a process explanatory drawing of the manufacturing method of the inorganic type board | plate material which concerns on one Example of this invention.

As shown in FIG. 1 (A), a granular material such as cement, slag, calcium carbonate, wax, perlite, pulp, mica, etc. is prepared in advance, and water is added to this to produce a slurry 10. Then, this predetermined amount is put into the mold 11 and the surface is leveled to perform forming. The mixing ratio of the slurry 10 is as shown in Table 1. In this case, it is preferable that a mold release agent is applied to the inside of the mold 11 to improve the mold release property of the molded inorganic plate material. Here, the cement acts as a binder,
Slag, wax stone, perlite and mica act as aggregates. Calcium carbonate makes the overall color close to white, and the mica is used to form a black dot pattern. Since the pulp functions to connect the molded products, other synthetic resin fibers may be used.

[0008]

[Table 1]

Next, an anhydrous powdery material mixed with cement, slag, calcium carbonate, wax, perlite, pulp, mica, etc. is prepared, and as shown in FIG. 1 (B), an appropriate mesh screen ( Sieve) 12 is used to put a certain weight of water-free powder material 13 into a predetermined mold 11,
Formed to a constant thickness. This anhydrous powdery material 1
The compounding ratio of 3 is shown in Table 1.

Next, as shown in FIG. 1 (C), a certain amount of the slurry 14 is put in from above, and forming is performed to form a layer having a certain thickness. The mixing ratio of the slurry 14 is the same as that of the slurry 10.

Thereafter, as shown in FIG. 1 (D), the whole is placed on the lower mold 15 of the pressing device, and the upper mold 16 is lowered to perform compression molding. The pressing condition in this case is preferably the same as in the case of producing a conventional multilayer inorganic plate material using a slurry as a raw material, or is preferably a slightly higher pressure. After this, remove the inorganic plate material 17 from the mold 11,
As shown in FIG. 1E, for example, a product that can be used as an outer wall material can be manufactured. In terms of strength, it was comparable to conventional products, and delamination due to freezing and thawing when used in cold regions was eliminated.

Although the above examples have been described by limiting the raw materials, it is of course possible to use other components as a blend as in the conventional case.

[0013]

As is apparent from the above description, the method for producing an inorganic plate material according to claim 1 allows the slurry and the water content of the slurry to penetrate into the powder material to cure the powder material. Interlayer adhesion is improved. Furthermore, the manufacturing is simple because a part of the conventional slurry is made of anhydrous powder and granules,
Since the granular material is easy to handle and store, the productivity is improved.

[Brief description of the drawings]

FIG. 1 is a process explanatory diagram of a method for manufacturing an inorganic plate material according to an embodiment of the present invention.

[Explanation of symbols]

 10 Slurry 11 Formwork 12 Screen 13 Powder / Granular Material 14 Slurry 15 Lower Mold 16 Upper Mold 17 Inorganic Plate

Claims (1)

[Claims] 1. A mold is formed with a slurry containing a hydraulic inorganic material, an aggregate and water, and then an anhydrous powder material containing the hydraulic inorganic material and the aggregate is formed thereon.
Next, a method for producing an inorganic plate material, which comprises forming a slurry containing a hydraulic inorganic material, an aggregate and water and performing compression molding from both front and back sides.