Magnesian ceramic blank, magnesian ceramic and preparation method thereof

Abstract

The invention provides novel magnesian ceramic blank. The novel magnesian ceramic blank comprises, by weight percent, 60-70% of talcum, 20-25% of clay, 5-10% of feldspar, and 5-10% of alumina. The talcum is mixture of raw talcum and burnt talcum. The clay is mixture of kaolin, ball clay and bentonite. The invention further provides a preparation method of magnesian ceramic, and the magnesian ceramic prepared by the preparation method. The magnesian ceramic prepared by the magnesian ceramic blank, glaze and the preparation method is low in thermal expansion coefficient, and has improved thermal stability and formability. In addition, sintering range is wide, sintering temperature is low, and the risk of ceramic burst is lowered greatly.

Description

technical field

[0001] The invention relates to the technical field of ceramics, in particular to a magnesia porcelain blank, a preparation method of the magnesia porcelain and the magnesia porcelain produced by the preparation method. Background technique

[0002] Daily-use talc porcelain is a kind of magnesia porcelain with talc as the main component. It is a new type of porcelain developed by Shandong Silicate Research and Design Institute in the 1970s. After the 1970s, domestic technical personnel in Shandong, Liaoning, Hebei and other porcelain producing areas and Japan have conducted a lot of research and put into mass production. Traditional daily-use talc porcelain uses talc as the main raw material, and its raw material formula is generally 70-75% of burnt talc, 10-15% of feldspar, and 12-18% of clay; it is characterized by high whiteness, high strength, and good light transmittance. , bright color, can be used as fine daily-use porcelain and arts and crafts porcel...

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