Ivory ceramic and production technology thereof

A technology of white porcelain and ivory, applied in the field of ceramics, can solve the problems of bone china molding stability, poor glaze hardness, overall strength, waste products that cannot be reused, and finished product thickness, etc., to achieve good transparency, good molding stability, The effect of high molding rate

Inactive Publication Date: 2013-09-11
TANGSHAN PERMANENT AUSPICIOUS PORCELAIN IND LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The mass percentage of each raw material is: 8% quartz, 15% feldspar, 45% kaolin, 10% porcelain powder, 10% aluminum oxide, and 12% bone charcoal; the porcelain powder is obtained by crushing bone china waste porcelain powder.

[0016] Low-temperature bisque firing and high-temperature glaze firing are used for one-time firing. In the low-temperature bisque firing stage, the temperature gradually rises to 850°C, and the biscuit firing time is 5 hours. Then enters the high-temperature glaze firing stage, and the temperature rises to 1255°C. High-temperature glaze firing for 24 hours, and the ivory is completed. Production of white porcelain.

Embodiment 2

[0018] The mass percentage of each raw material is: 28% of quartz, 10% of feldspar, 30% of kaolin, 15% of porcelain powder, 7% of aluminum oxide, and 10% of bone charcoal; porcelain powder.

[0019] High-temperature plain firing and low-temperature glaze firing are used for the second firing. In the high-temperature plain firing stage, the temperature is controlled at 1280°C, and the plain firing time is 24 hours. Then enter the low-temperature glaze firing stage, and the temperature is controlled between 1160°C, and the low-temperature glaze firing is 17 hours. Complete the production of ivory white porcelain.

Embodiment 3

[0021] The mass percentage of each raw material is: 15% of quartz, 25% of feldspar, 25% of kaolin, 15% of porcelain powder, 2% of aluminum oxide, and 18% of bone char; porcelain powder.

[0022] Low-temperature bisque firing and high-temperature glaze firing are used for one-time firing. In the low-temperature bisque firing stage, the temperature gradually rises to 780°C, and the biscuit firing time is 3 hours. Then enters the high-temperature glaze firing stage, and the temperature rises to 1340°C. High-temperature glaze firing for 24 hours, and the ivory is completed. Production of white porcelain.

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C04B33/22C04B33/24
Inventor 赵孟冬李尹
Owner TANGSHAN PERMANENT AUSPICIOUS PORCELAIN IND LIMITED
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