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Novel medium-temperature sintered feldspathic porcelain and preparation method thereof
The invention discloses novel medium-temperature sintered feldspathic porcelain and a preparation method thereof. The porcelain is prepared from, by mass, 15-30% of feldspar, 30-50% of kaolin, 10-30% of quartz, 3% of calcinated talc, 3% of lithium chinastone and 5-10% of nanofibers with calcium sulfate additionally added; the preparation method comprises the steps of conducting raw material fine selection, pulverization, material matching, ball milling, fineness detection, slurry feeding and sieving for removing iron, adding the calcium sulfate nanofibers and stirring the mixture uniformly, conducting press filtering for extracting paste and pugging, then after the direct formation and drying procedures are completed and 11 hours later, conducting biscuit firing till the temperature reaches 1260 DEG C, preserving the temperature for 60 minutes, conducting cooling, and obtaining novel feldspathic porcelain pre-sintered billets. By means of the method, the defects of existing feldspathic porcelain that billet bodies are poor in strength and heat stability are overcome. The novel medium-temperature sintered feldspathic porcelain is scientific and reasonable in production method, easy to carry out, high in yield, good in product quality and capable of substantially shortening the sintering cycle and lowering the sintering temperature, the production cost is remarkably lowered, and the novel medium-temperature sintered feldspathic porcelain has a wide market prospect.
Novel medium-temperature sintered feldspathic porcelain and preparation method thereof
The invention discloses novel medium-temperature sintered feldspathic porcelain and a preparation method thereof. The porcelain is prepared from, by mass, 15-30% of feldspar, 30-50% of kaolin, 10-30% of quartz, 3% of calcinated talc, 3% of lithium chinastone and 5-10% of nanofibers with calcium sulfate additionally added; the preparation method comprises the steps of conducting raw material fine selection, pulverization, material matching, ball milling, fineness detection, slurry feeding and sieving for removing iron, adding the calcium sulfate nanofibers and stirring the mixture uniformly, conducting press filtering for extracting paste and pugging, then after the direct formation and drying procedures are completed and 11 hours later, conducting biscuit firing till the temperature reaches 1260 DEG C, preserving the temperature for 60 minutes, conducting cooling, and obtaining novel feldspathic porcelain pre-sintered billets. By means of the method, the defects of existing feldspathic porcelain that billet bodies are poor in strength and heat stability are overcome. The novel medium-temperature sintered feldspathic porcelain is scientific and reasonable in production method, easy to carry out, high in yield, good in product quality and capable of substantially shortening the sintering cycle and lowering the sintering temperature, the production cost is remarkably lowered, and the novel medium-temperature sintered feldspathic porcelain has a wide market prospect.
Novel medium-temperature sintered feldspathic porcelain and preparation method thereof
WANG XIAOWEN (author) / GAI YUEGUI (author)
2016-01-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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