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Medium temperature sintered cordierite heat-resistant porcelain and preparation method thereof
The invention discloses medium temperature sintered cordierite heat-resistant porcelain and a preparation method thereof. A heat-resistant porcelain rough body is prepared from, by mass, 35-40% of high-temperature sintered talc, 15-30% of alumina powder, 20-30% of clay, 10-20% of feldspar and 5-10% of calcium sulfate nanofiber additive. The preparation method comprises the steps that bisque firing is carried out to 1260 DEG C for 12 h after compounding, ball grinding, fineness detection, discharging, screening for removing iron, additive adding, even stirring, filter pressing and squeezing mud, pugging, aging, mud refining, forming, drying and fettling are carried out, the temperature is kept for 60 min, cooling is performed, and then a heat-resistant porcelain bisque can be obtained. The problems that existing cordierite heat-resistant porcelain is high in bisque synthesis temperature, long in sintering is long and poor in heat stability are solved. The production method is scientific, reasonable and easy to implement, the yield is high, product quality is good, the sintering period can be greatly shortened, the product heat stability is improved, and the market prospect is wide.
Medium temperature sintered cordierite heat-resistant porcelain and preparation method thereof
The invention discloses medium temperature sintered cordierite heat-resistant porcelain and a preparation method thereof. A heat-resistant porcelain rough body is prepared from, by mass, 35-40% of high-temperature sintered talc, 15-30% of alumina powder, 20-30% of clay, 10-20% of feldspar and 5-10% of calcium sulfate nanofiber additive. The preparation method comprises the steps that bisque firing is carried out to 1260 DEG C for 12 h after compounding, ball grinding, fineness detection, discharging, screening for removing iron, additive adding, even stirring, filter pressing and squeezing mud, pugging, aging, mud refining, forming, drying and fettling are carried out, the temperature is kept for 60 min, cooling is performed, and then a heat-resistant porcelain bisque can be obtained. The problems that existing cordierite heat-resistant porcelain is high in bisque synthesis temperature, long in sintering is long and poor in heat stability are solved. The production method is scientific, reasonable and easy to implement, the yield is high, product quality is good, the sintering period can be greatly shortened, the product heat stability is improved, and the market prospect is wide.
Medium temperature sintered cordierite heat-resistant porcelain and preparation method thereof
GAI YUEGUI (author) / WANG XIAOWEN (author)
2016-01-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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