JPS59217687A - Manufacture of hydraulic inorganic dressing 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] Is this invention based on clay? Hydraulic inorganic cosmetics, characterized in that all of the hydraulic inorganic curing raw materials combined or unmixed are molded to form a molded product, and the molded convex metal is heated above qOθ°C and smoked or salt-baked. Concerning body manufacturing methods.

The hydraulic inorganic curing raw materials used in this invention include water and hydraulic inorganic fine powder such as cement, water slag, and gypsum, or igneous rock such as andesite and basalt, shirasu, lava, slag, chamotte, and heated expanded artificial aggregate, pumice,
A complete mixture of heat-resistant aggregates such as pearlite, ceramic waste, and slow-cooled slag can be used. It goes without saying that generally produced aggregates such as sand may be used if they have excellent heat resistance, or that additives such as water reducers, thickeners, and lubricants may be mixed together. In addition, hydraulic inorganic fine powder includes cement, water slag,
It is possible to use materials such as gypsum, etc., which are thicker than or equal to 100%. The molding of organic hardening raw materials having a small hydraulic property S may be carried out by any method such as casting method, press molding method, extrusion molding method, press dehydration molding method, etc.

Although the manufacturing method of the present invention is not limited to roof tiles and can be used for tiles, etc., all embodiments will be explained using a press dehydration molding method as the molding method and the decorative body to be manufactured as a roof tile.

Example/700 parts by weight of hydraulic inorganic fine powder, heat-resistant aggregate θ0M1
1 part of j and 45 parts by weight of water were kneaded in a mixer, and this was pressed and dehydrated using a floating V-st molding machine to make a molded product, which was cured for 3 days to harden. Made of smoked tiles? Utilizing the manufacturing method, the roof tiles were fired and smoked using a Daruma kiln, resulting in a tile with a silver-colored surface.

100 parts by weight of hydraulic inorganic fine powder, 200 parts by weight of heat-resistant aggregate, and 1/2 part by weight of water are all kneaded in a mixer, and this is de-pressed using a floating slate molding machine and molded in water to form a molded product, which is then molded for 3 days. After curing and hardening, the tile was fired in an overturned kiln using a conventionally known manufacturing method for salt-fired tiles to obtain a whole tile with a glassy coating layer formed on the surface.

Conventional smoked tiles are made through a roasting process in which the material is gradually heated to dehydrate it and kept at 200°C to 0°C for about 70 hours, at 30°C.
Gradually increase the temperature until it reaches 50°C, then 0°C to 700°C.
The medium firing process, which continues baking for about an hour, the main firing process, which raises the temperature to gSθ℃~1000℃, which takes about an hour, and the kneading process, which uses high-quality fuel to maintain the sound for an hour. Close the smoke vent at the top of the door, make all the smoke holes, and at the same time, put in all the necessary amount of pine firewood, pine needles, etc. from both the fire pits at once, seal the fire pit and the wind duct, and heat from 700℃ to 100℃.
The smoking process involves smoking at 00℃ for around 7 hours, and the kiln fixing process. During the smoking process, carbon from the fuel and moisture combine to form hydrocarbons, which are then deposited on the surface of the tile. In order to obtain a silver color that is even better when the carbon adheres, cold water is injected into the kiln during the kiln-stopping process, and the kiln is opened when the temperature reaches below 300°C.

On the other hand, conventional salt-fired tiles are fired in an overturned kiln, and the firing time varies from 20 to 30 hours, but if it is 23 hours, the roasting process is 70 hours, the medium firing process is 810 hours, and the process from adding salt to kneading is 23 hours. The firing process takes 3 hours. After filling the kiln, going through the roasting process and then the medium firing process /100℃~i,
It is heated to 2 Do℃, and when it is well baked, it is oxidized by salt and combustion from the fire pit, decomposed into sodium and hydrogen chloride, and the sodium gas combines with silicic acid and alumina in the clay to become sodium silicate, whose components are glass. It forms a shaped film and is fused to the surface of the roof tile. After adding the salt, add 3 pieces of kneaded mushrooms.
0 minutes to / hour, close the kiln and gradually cool it down.
Ideally, it should be taken out of the kiln about 7 days after firing.

Examples of conventional methods for manufacturing smoked tiles and salt-fired tiles have been described above, but in the present invention, the above-mentioned firing method can be used, and the firing can also be performed by fully utilizing a tunnel kiln. In addition, since the base material is completely molded from hydraulic inorganic hardened raw materials, the roasting process, medium firing process, main firing process, kneading firing process can be performed continuously, or some processes can be omitted or the time can be shortened. It can be done by

In Example/, the temperature of the kneading and firing process was set to 7000.
℃ or higher, for example /100℃~7200℃, then 9
Smoking at 00°C to 100θ°C will result in good carbon fixation. In addition, when the temperature of the kneading and firing process is about 1000℃, mix the hydraulic inorganic hardening raw material with clay that does not deform during firing or something with a softening point lower than the hydraulic inorganic fine powder such as yuzu. can do. Also, whether to apply a glaze to the surface of the molded product, to provide a layer of clay or a mixture of clay and hydraulic inorganic fine powder, or to provide a layer of clay or a mixture of clay and hydraulic inorganic fine powder via glaze or a mixture of glaze and clay. Alternatively, when a mixture layer of yuzu and clay is provided and fired, the kneading step may be carried out at about /θ00°C. That is, the temperature in the smoking step is preferably between θθ°C and /θθθ°C, and it is preferable that the molded article or the layer provided thereon be softened to a certain extent in the smoking step to improve the adhesion of carbon.

In Example Y, sodium gas combines with silicic acid and alumina to form sodium silicate, and this component forms a glass-like film that is fused to the surface of the tile, so the molded product does not contain silicic acid and alumina. Needless to say, it is possible to mix the hydraulic inorganic hardened original with clay that does not deform (does not cause distortion) by baking and then molds the molded product. Apply yuzu to the surface, or provide a layer of clay or a mixture of clay and hydraulic inorganic fine powder.
Glaze or mixture of glaze and clay 1. Provide a layer of clay or a mixture of clay and hydraulic inorganic powder through a material, or
"Alternatively, a mixture bar 6 of glaze and clay may be provided and fired. When glaze is applied entirely to the surface and fired, a glaze containing silicic acid and alumina is used.

Although the embodiments have been described in detail above, tiles that have been fired and taken out of the kiln can be placed in water for rapid cooling. It should be noted that it is not preferable to rapidly cool all of the materials whose temperature is about 300° C. or higher. This is because it causes the fixed carbon to peel off and the decorative layer to crack. Furthermore, the tiles made in the above manner are subjected to moisture curing,
The product is sufficiently cured by steam curing, water curing, hot water curing, autoclave curing, etc. to perform a water utilization reaction, and is shipped after hardening. Single molded products may be cured to the extent that they will not be damaged during transportation and then fired (e.g., the day after molding).
It may be baked after being sufficiently cured and hardened. Further, a surface layer of clay, glaze, or the like may be provided on the molded product immediately after molding or before firing. When a clay layer is provided on a molded product, it may be applied by spraying the clay into a slurry by adding water, or it may be fixed by spreading powder.

The hydraulic inorganic fine powder used in the hydraulic inorganic hardening raw material uses all seven or more of the following: portland cement, alumina cement, early-strengthening cement, rapid-hardening cement, blast furnace cement, water slag, and gypsum. be able to. Gypsum is effective for hardening before firing, and cement and water slag are effective for hardening before and after firing. Water slag and slow-cooled slag used as aggregates are activated when rapidly cooled after firing, and a significant hydration reaction occurs during curing. Furthermore, when clay is completely mixed with the hydraulic inorganic curing raw material, heat-resistant aggregate is not necessarily required. Examples of the 100 parts by weight of the hydraulic inorganic fine powder used in Examples/C are 100 parts by weight of Portland cement, 30 parts by weight of Portland cement, and 30 parts by weight of water slag). , I
≦, blast furnace cement 10θ parts by weight, blast furnace cement gθjl
(IJ parts and stone f20 parts by weight, etc.).

It is also desirable to use as much slow-cooled slag as possible for the heat-resistant aggregate.

Since this invention is constructed as described above, it is possible to manufacture roof tiles, etc. that have a beautiful inorganic decorative layer by using all the hydraulic inorganic curing raw materials, and compared to conventional smoked roof tiles and salt fired roof tiles, it is possible to manufacture roof tiles etc. Not only can you save time on fuel,
The firing time can be shortened, the decorative body produced has little distortion, and it can be used not only for roof tiles but also for the production of tiles and other products, making it extremely useful.

Patent Applicant: Koji Mitsuo, Representative Director, Mitsuo Research Institute Co., Ltd., Takashi Nakano, Representative Director, Nakano Industrial Machinery Co., Ltd. Afternoon Agency Keiichi N3 Seisho t O3 Nine Rika Enemy I! 62 nails L
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Claims (1)

[Claims] (11) A hydraulic inorganic curing raw material mixed with or without clay is molded into a molded product, and the molded product is made into a 90θ
A method for producing a hydraulic inorganic cosmetic body, which is characterized by heating the door above ℃ and smoking or baking with salt. (2) Molded convex metal can be smoked or salt-grilled as it is f! :1i′! i-Character Claim 1
A method for producing a hydraulic inorganic cosmetic body as described in 2. (3) A method for producing a hydraulic inorganic cosmetic body according to claim 1, characterized in that the surface of the molded product is glazed and smoked or salt-baked. (4) A hydraulic inorganic cosmetic body according to claim 1, characterized in that clay or a mixed layer of clay and hydraulic inorganic fine powder is provided on the surface of the molded article and then smoked or salt-baked. Manufacturing method. (5) Hydraulic properties according to claim 1, characterized in that clay or a mixed layer of clay and hydraulic inorganic fine powder is provided on the surface of the molded product via glaze, and then smoked or salt-baked. A method for producing inorganic cosmetics. (6) A method for producing a hydraulic inorganic 4-based cosmetic according to claims 3 and 5, characterized in that clay is mixed in the glaze.