KR100220211B1 - Method for preparing ceramic ware using sericite - Google Patents

Abstract

The present invention relates to a method for producing pottery utensils and the like using sericite, which is gemstones of germanium, which has various advantages such as neutralization of heavy metals, and is produced by mixing sericite, which is weak in heat, with pottery, kaolin, It is made from 15 to 20% of feldspar, 20 to 25% of stalactite, 5 to 10% of granite, 25 to 30% of kaolin, 20 to 25% of clay, The mixture was first wet milled and mixed with 5 ~ 15% of sericite mixed with the first wet milled powder. The mixture was subjected to second wet milling at about 300 - 350 mesh, followed by de-ironing, dehydration, After drying, it is pre-dried at about 900 ° C, cooled, coated with glaze, dried, and baked at about 1,250 ° C.

Description

Manufacturing method of porcelain dishes using sericite

The present invention relates to a method for producing pottery dishes or containers using sericite.

The sericite is an ore of germanium, which is used to produce various porcelain utensils and vessels. The germanium component contained in the sericite neutralizes the heavy metal components in the food and eliminates odors to prevent the food from being easily damaged, And the heat conductivity is high, the heating time is shortened and the warmth is good, so that the food is not easily cooled. Especially, since the grease of the tableware is easily removed without using the new product, .

However, since the sericite melts at about 1,100 ° C, when it is heated at a high temperature of 1250 ° C, which is a normal ceramics calcination temperature, the shape of the shaped container is deformed by melting in the calcination process, .

The present invention solves this problem, so that the sericite is molded and fired at a proper ratio as shown in the following Table (1) with stones having high heat resistance, such as kaolin and kaolin, And the like.

[Table 1]

In the present invention, the raw materials except for the sericite such as stover and kaolin are first milled to about 200 mesh, and then mixed with the sericite and then milled again to about 300 to 350 mesh. So that the sericite was prevented from being excessively pulverized.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First step: raw material mixing and grinding process

The mixture was mixed with 15 ~ 20% of feldspar, 20 ~ 25% of stalactite, 5 ~ 10% of refined stover, 25 ~ 30% of kaolin and 20 ~ 25% of clay. To 15% by weight, and then wet-milled separately at a size of about 300 to 350 mesh (the ratio is a weight ratio).

Step 2: product molding process

The mixed powder obtained by wet pulverization in the first step is subjected to de-ironing, dehydration, stoichiometry and kneading in the usual manner, molded into the shape of a necessary container or tableware, and then dried naturally.

Third step: firing step

The molded and dried product in the second step is dried at a temperature of about 900 ° C. and then naturally cooled. Then, the glaze as a raw material as shown in the following Table 2 is applied to the surface of the product, followed by natural drying and then firing at about 1250 ° C. do.

[Table 2]

As described above, according to the present invention, it is possible to produce various porcelain dishes or containers having the merit of germanium contained in the sericite by mixing the sericite having a low melting temperature at a suitable ratio with the high heat resistant stones.

Therefore, the product manufactured by the method of the present invention neutralizes the heavy metal component in the food, removes the odor, and does not easily break the food, has a high thermal conductivity and shortens the cooking time, and particularly uses the detergent It is possible to prevent environmental pollution because various kinds of oil and the like can be easily removed even if it is not necessary.

Claims (1)

(Correction) feldspar 15 ~ 20%, constellation stone 20 ~ 25%, refined stover 5 ~ 10%. 25-30% of kaolin and 20-25% of clay are mixed at a weight ratio of about 200 mesh, and wet-milled to about 200 mesh. The mixture is mixed with 5 to 15% of sericite to a weight ratio of about 300 to 350 mesh Wet-milling, and wet-milling the mixture powder as described above, followed by de-ironing, dehydration, tuyering, kneading, molding and firing as in the conventional method.