Green glazed jun porcelain and preparation method thereof

Abstract

The invention provides a green glazed jun porcelain. The green body of the green glazed jun porcelain is prepared from the following raw materials by weight: 70-80 parts of white clay, 4-6 parts of black hair soil, 9-15 parts of flint clay, and 6-10 parts of sandstone. The glaze material is prepared from the following raw materials by weight: 47-53 parts of melilite, 17-23 parts of quartz, 10-16 parts of limestone, 1.5-2.5 parts of antimony stone, 2-4 parts of iron ore, 8-10 parts of wood ash, and 2-4 parts of talc. Compared with the prior art, the green body formula adopts soft black hair soil and white clay to enable easy molding of the green body, then flint clay and sandstone are added to increase the whiteness, strength, hardness and brightness of the green body, so that the preparedgreen body can be full of texture, is not dazzling, has water color, and is low in cost. The glaze formula uses minerals, is not added with any chemical substance, and through scientific and reasonable proportioning of the raw materials and control of the firing process, the firing temperature can be lowered, heat preservation is unnecessary, and the green glazed jun porcelain with natural color,jade texture and strong opacifying performance can be prepared, and the rate of finished products reaches 98%.

Description

technical field [0001] The invention relates to a glaze material, in particular to a green-glazed Jun porcelain and a preparation method thereof. Background technique [0002] Generally, Jun porcelain is composed of green body and glaze body. The green body refers to the green body of Jun porcelain that has not been pre-fired before glazing. When glazing, it will not cause cracks due to wetting the green body. The main components of the green body raw materials are ores, such as feldspar and quartz. The high silicon content makes the green body very easy to crack after cooling out of the kiln. Moreover, the embryo body of this raw material is relatively strict in the selection of raw materials. The raw materials have to go through a long-term and continuous cycle of wind, sun, rain, and freezing. The processing methods are complicated, and their quality cannot meet the manufacturing of Jun porcelain. This is also an important reason for the low yield of Jun porcelain. [0...

AI Technical Summary

Problems solved by technology

Due to the unique process formula and firing technology of celadon-glazed Jun porcelain, it adopts double firing, first biscuit firing and then firing. The firing temperature is generally 1275-1300°C, and it is kept at this firing temperature for 0.5-1h. The cost of the liquefied gas fuel used in firing in this way is relatively high. Therefore, it is urgent to change the firing process by changing the formula of the glaze and reduce the manufacturing cost.

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