Bone China and preparation method thereof

Abstract

The invention discloses a bone china and a preparation method thereof, relates to a bone china and provides a bone china with better performance and a preparation method thereof. The blank raw materials of the bone china are 45-55 percent of bone powder, 255-34 percent of clay, 85-14 percent of feldspar and 85-12 percent of quartz. The preparation method comprises the following steps of: drying and calcinating the bone powder, cooling along with a furnace, ball milling and washing and then drying; carrying out ball milling on the clay, the feldspar and the quartz; mixing bone powder, clay powder, feldspar powder and quartz power which are subjected to ball milling; adding a dispersant and grinding to obtain a bone china sizing agent; pouring the bone china sizing agent into a mold and molding, then demolding and drying to obtain a blank; and repairing the bland, pouring the blank into the furnace and sintering to obtain the bone china. The invention solves the problems that the sizing agent molded by grouting has instability, low strength, easy crack and the like, caused by overhigh viscosity of the bone china sizing agent, improves the mechanical strength and the transmittance of the bone china, enables the comprehensive performance index of a bone body to reach an optimal balance by adopting a proper sintering system, avoids the production problem of higher production cost and has considerable market prospect.

Description

technical field [0001] The invention relates to a bone china, in particular to a bone china and a preparation method thereof. Background technique [0002] Bone china, formerly known as bone china, is usually referred to as bone china for short. It is prepared from animal ashes through degreasing, rinsing, high-temperature calcination and many special processes. Bone china is a kind of soft porcelain, and the animal ashes used are mostly high-quality bovine bones. Therefore, bone china porcelain is fine in texture, smooth in glaze, soft in luster, and feels like fat like jade. It is extremely elegant and luxurious, and has a high Transparency and certain mechanical strength. It has the reputation of "as thin as paper, as bright as a mirror, as white as jade, and as loud as a sound". In daily-use ceramics, bone china is widely used, and is recognized as the highest-grade porcelain in the world today, and is deeply loved by consumers. [0003] Modern bone china is based on ...

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Problems solved by technology

[0012] But generally speaking, there are few reports about adding zirconium to toughen bone china, mainly because the addition of additives will affect some other properties of bone china, such as whiteness, light transmittance, etc., and based on the previous research The analysis shows that the strength of daily-use ceramics plays a decisive role in improving its thermal stability. Therefore, the most important way to improve its thermal stability is to develop new ceramics with reasonable formulas and adopt corresponding production processes to improve the strength of daily-use ceramics.

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