Ivory ceramic and production technology thereof

Abstract

The invention relates to an ivory ceramic and a production technology thereof, and belongs to the technical field of ceramics. A technical scheme adopted in the invention is characterized in that the ivory ceramic is prepared through calcining 5-30mass% of quartz, 5-30mass% of feldspar, 20-50mass% of kaolin, 1-20mass% of ceramic powder, 1-15mass% of alumina and 1-20mass% of bone black; and the ceramic powder is obtained after crushing bone china wastes or is obtained after crushing ivory ceramic wastes. The ivory ceramic has a high whiteness, a good transparency, a fine ceramic texture and a shining and smooth glaze, has the advantages possessed by the bone china, also has the advantages of good molding stability, high glaze hardness, high overall strength, reasonable technology and high molding rate, overcomes the disadvantages of the bone china, is a substitute product of the bone china, is called as the ivory ceramic because of the ivory color, and has a high grade and a low cost; the bone chain wastes are afresh used, so energy saving and environmental protection are realized.

Description

technical field [0001] The invention relates to ivory white porcelain and a production process thereof, belonging to the technical field of ceramics. Background technique [0002] At present, in the production of ceramics, there is no or only a very small amount of coloring agent in the glaze of white porcelain. The plain white porcelain that is glazed on the green body and fired by high-temperature flames in the kiln has the following disadvantages: impermeability, poor whiteness, The grade is low, and the raw material is wasted due to the large thickness of the finished product. bone china. Bone china is a kind of porcelain made of animal bone charcoal, clay, feldspar and quartz as basic raw materials, which are fired twice by high-temperature biscuit firing and low-temperature glaze firing. It has high whiteness, good transparency, fine porcelain, and glazed surface Bright and flat porcelain, known as "thin as paper, white as jade, bright as a mirror, and sound like a c...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of ceramics, there is no or only a very small amount of coloring agent in the glaze of white porcelain. The plain white porcelain that is glazed on the green body and fired by high-temperature flames in the kiln has the following disadvantages: impermeability, poor whiteness, The grade is low, because the thickness of the finished product is relatively large, resulting in waste of raw materials

Bone china is a kind of porcelain made of animal bone charcoal, clay, feldspar and quartz as basic raw materials, which are fired twice by high-temperature biscuit firing and low-temperature glaze firing. It has high whiteness, good transparency, fine porcelain, and glazed surface Bright and flat porcelain, known as "thin as paper, white as jade, bright as a mirror, and sound like a chime", overcomes some shortcomings of ordinary white porcelain. However, bone china has the following problems: during the firing process, It has extremely high requirements on its regularity, whiteness, transparency, thermal stability and other physical and chemical indicators, so the waste rate is very high, and a large number of waste products cannot be reused and can only be treated as garbage, which wastes raw materials and pollutes the environment. ; In addition, the molding stability, glaze hardness and overall strength of bone china are poor