Bone porcelain with high resistance of heat shocks and production method thereof

Abstract

The invention relates to a bone china with high resistance to heat shocks and a manufacture method thereof. The raw material components of the bone china stock and the weight percentages are: 9 to 12 of quartz, 7 to 10 of feldspar, 11 to 14 of greensand, 4 to 7 of Longyan clay, 5 to 8 of china clay, 4 to 7 of kibushi clay, 42 to 46 of bone coal and 7 to 10 of bentonite; the raw material components and the weight percentages of glaze material are: 5 to 8 of the quartz, 2 to 5 of the bentonite, 3 to 6 of Suzhou clay, 50 to 53 of model one fused block and 34 to 37 of model two fused block; the bone china has the resistance to heat shocks that no crack occurs during the heat change in the water with the temperature of 200 to 20 DEG C for once. The manufacture steps are as follows: preparing stock paste, preparing glaze paste, roller forming, grouting and forming, biscuit firing, glazing, glaze firing and decorating firing. The enamel layer of the invention has the advantages of large elasticity, good toughness and mechanical property. The raw material ingredients have no lead and zero radioactivity, which are green. The manufacture method is scientific and reasonable, and the product has the resistance to heat shocks that no crack occurs during the heat change in the water with the temperature of 200 to 20 DEG C at one time.

Description

Technical field [0001] The invention relates to a bone china and a production method of the bone china, in particular to a high heat shock resistance bone china and a production method thereof. Background technique [0002] Bone china is a kind of soft porcelain that is mainly made of bone powder (calcined treatment), while adding some mineral raw materials such as clay, feldspar, quartz, etc., using high-temperature biscuit firing and low-temperature glaze firing secondary firing process. With the continuous improvement of the level of science and technology, the production technology of bone china has become more mature. At present, bone china is produced all over the world, and there are manufacturers in Britain, China, Japan, Germany, Russia, Thailand and other countries. From the perspective of its manufacturing level and brand awareness, brands such as Wegwood, Royaldoulton and Noritake of Japan are leading the way. [0003] my country started the research and trial product...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem of the poor thermal shock resistance of bone china products in my country. One is to provide a thermal shock resistant 200°C-20°C water heat exchange without cracking once, with high gloss and high glaze hardness. 1. High thermal shock resistance bone china with good light transmittance. The second is to provide a production method of high thermal shock resistance bone china

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