JPS59227792A - Manufacture of heat resistant hardened body - 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 This invention involves molding hydraulic inorganic fine powder, heat-resistant raw materials, water, or a mixed raw material mainly composed of fibers to form a molded product with an uneven pattern on the surface, which is then hardened by a water phase reaction. The present invention relates to a method for producing a heat-resistant cured product having an uneven pattern formed on its surface, which is characterized by subjecting the product to drying, followed by treatment and heating and baking.

The hydraulic inorganic fine powder used in this invention includes cement, water slag, gypsum, or a mixture of one or more of these, and the heat-resistant raw materials include clay, china clay, chamotte, silicic acid, and albousite. Used are silica-alumina, magnesia, calcareous, chromium, zirconia, titania, doria and urania, carbonaceous, cermet, and the like. Fibers include organic fibers such as vegetable fibers, asbestos fibers, carbon fibers, glass fibers, stainless steel fibers, silicon carbide tungsten fibers, silicon carbide fibers, sapphire fibers, silicon carbide tungsten fibers,
Polon carbide fiber, alumina whisker, silicon carbide voice car, titanium carbide whisker.

A silicon nitride voice car, a sapphire whisker, or a coating thereof is used. Further, as the cement, Portland cement, early-strengthening cement, quick-setting cement, alumina cement, thermal 6J cement, blast furnace cement, etc. are used. Moreover, when natural sand is heat resistant, it can be used as it is as a heat resistant raw material. In addition, for molding mixed raw materials, casting method, press molding method,
Other paper forming methods such as extrusion molding, press dehydration molding, etc. can also be used, and the method is not limited. Vibration press molding is possible.

Example: A mixed raw material is prepared by mixing 10 θ parts by weight of hydraulic inorganic fine powder, 300 parts by weight of a heat-resistant raw material, and 3 parts by weight of a fiber go with an appropriate amount of water, and the resulting material is made into a single layer or multi-layered. (It may also be press-molded or press-dehydrated molded using a mold to form the tile-laying shape shown in Figures 1 and 2), cured for 3 days, and then cured using a roll. Only the convex portions 1 were glazed and heated to form a heat-resistant cured body with an uneven pattern formed on the surface.

In the above embodiments, the fibers may be made of rubber or the above-mentioned inorganic fibers. A paper machine, an asbestos slate machine, etc. can be used for the paper making machine. Also, the glaze may be sprayed or painted on the entire surface, and the glaze may be applied by spraying on the entire surface. May be glazed.

The fourth part 2 forms the eye area.

Example: 100 parts by weight of hydraulic inorganic fine powder, 5300 parts by weight of heat-resistant raw material, and a water mixing mixer with an appropriate sound were kneaded, and the mixture was press-molded or pressure-dehydrated using a press molding machine to form the molding material shown in FIGS. 3 and 1. After making the molded product shown in the figure and curing it for three days to harden it, glaze is sprayed on the entire surface, and the glaze on the top surface of the convex part 1 is wiped off or not wiped off. A heat-resistant hardened body with an uneven pattern formed on the surface was obtained by applying glazes of different colors using a roll 11 and firing by a conventionally known ceramic manufacturing method.
It goes without saying that only the convex part 1 may be glazed with a roll without being glazed, and that only the fourth part 2 may be glazed. For convenience, it is desirable that the heights be approximately equal.

Although the embodiments have been described above, when heat-curing cement is used for the hydraulic inorganic fine powder, it can be cured by heating at about 70° C. after molding. That is, it can be hardened in the drying step of firing, and does not necessarily require a three-day curing period. Furthermore, curing is not limited to three days, and the material may be cured by hydration to such an extent that it will not be damaged during transportation, or may be sufficiently cured in an aqueous phase using an autoclave or the like. Further, the mixing ratio of the hydraulic inorganic fine powder and the heat-resistant raw material is not limited to the example, and if the mixing ratio of the hydraulic inorganic fine powder is 100%, the heating and firing temperature is t! rO℃~9θO℃
However, if the blending ratio of the heat-resistant raw materials is large, sintering or solidification becomes important, so it is preferable to heat and bake at 90θ°C or higher. In addition, when the mixing ratio of the hydraulic inorganic fine powder is equal to that of the one above, when water slag is used for the hydraulic inorganic fine powder, or when slow cooling slag is used as a heat-resistant raw material, slow cooling or If it is cured with water after quenching, the hydration reaction will proceed and the strength will increase.

This invention is constructed as described above, and since the hydraulic inorganic fine powder is mixed in the mixed raw material, the drying process can be performed by a hydration reaction between the hydraulic inorganic fine powder and water which is initially hardened, thereby simplifying the drying process. Not only can this be achieved, but when the ratio of hydraulic inorganic fine powder to heat-resistant raw material is within 1:3, there is little warping or distortion due to firing, and the firing temperature can be relatively low;
Even when the temperature is 98 degrees, there is less warping and distortion compared to conventional methods for manufacturing roof tiles and ceramics, and the firing temperature can be lowered. The heat-resistant cured product of this invention has an uneven pattern on its surface, giving it an aesthetic appearance that is similar to conventional tiles and sidewalk boards.

This created a new demand in place of concrete blocks, ceramic blocks, etc., and in particular, the hardened body of the example is attached to the back of the formwork and concrete is poured.

It has a wide range of uses, such as in the production of concrete slabs that are integrally fixed to hardened concrete, and in the production of PC plates in which the hardened material is used as a formwork to cast concrete slabs and are fixed integrally.

[Brief explanation of the drawings] Figure 1 is a front view of an example of a cured product;
FIG. 2 (2) shows the other side of the sectional view, FIG. 3 is a front view of one example of the cured product, and FIG. 1 is the same sectional view. Patent Applicant Hiroshi Mitsuo Representative Director, Mitsuo Kazen Institute Co., Ltd. Fig. 1 Fig. 2 Collection 3 Fig. 4 Fig. 4 - Enbin Jyofu (Rikiya Yuichi 98'Ten 1ρF12 1-Yokoshin IN Flood good fortune, j, to the body I μ be special La = ke θ 01 θ) loss 2, extremely box-shaped product fin ＼ slip 11 LINΦ Sanshō 3, send plate to old 3 special r. 11/~ Happy special beast ~ b fire ram, i 1 original n shun 4 R91K) 3 heart discharge - 5 da 6 thought hat naikukuden *Jb bE3h monument mouth) to q heart \) Q“ I-style Kaizo too. 7'2cm + 11 (1 degree to Mi'9cm)

Claims (1)

[Claims] A mixed raw material mainly consisting of hydraulic inorganic fine powder, heat-resistant raw material, water, or fibers is molded into a molded product with an uneven pattern on the surface, which is hardened by a water phase reaction, then glazed on the surface, and heated and fired. A method for producing a heat-resistant cured product having an uneven pattern formed on its surface.