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Zirconia ceramic bearing preparation method based on gel casting technology
The invention provides a zirconia ceramic bearing preparation method based on a gel casting technology. The zirconia ceramic bearing preparation method comprises the following steps that yttria-stabilized tetragonal phase zirconia powder, aluminum oxide powder, silicon nitride powder, a dispersing agent, gel and a demoulding agent are supplied; after ball milling is performed on the yttria-stabilized tetragonal phase zirconia powder, the aluminum oxide powder, the silicon nitride powder, the dispersing agent and an appropriate amount of deionized water, ceramic powder suspended matter is prepared, ball milling is performed by adopting a wet ball milling technology, and zirconia balls are adopted as mill balls; the ceramic powder suspended matter is preheated; the gel is heated and dissolved to obtain a gel solution, the heated gel solution is immediately added into the preheated ceramic powder suspended matter, and stirring, mixing and defoaming are performed to obtain ceramic slurry; after the side wall of the interior of a mould is coated with the demoulding agent, the ceramic slurry is injected into the mould, standing forming is performed, and after demouding drying is performed, a bearing green body is obtained; the bearing green body is calcined to obtain a zirconia ceramic bearing. According to the preparation method, toxicity generated to the environment and operating personnel can be eliminated.
Zirconia ceramic bearing preparation method based on gel casting technology
The invention provides a zirconia ceramic bearing preparation method based on a gel casting technology. The zirconia ceramic bearing preparation method comprises the following steps that yttria-stabilized tetragonal phase zirconia powder, aluminum oxide powder, silicon nitride powder, a dispersing agent, gel and a demoulding agent are supplied; after ball milling is performed on the yttria-stabilized tetragonal phase zirconia powder, the aluminum oxide powder, the silicon nitride powder, the dispersing agent and an appropriate amount of deionized water, ceramic powder suspended matter is prepared, ball milling is performed by adopting a wet ball milling technology, and zirconia balls are adopted as mill balls; the ceramic powder suspended matter is preheated; the gel is heated and dissolved to obtain a gel solution, the heated gel solution is immediately added into the preheated ceramic powder suspended matter, and stirring, mixing and defoaming are performed to obtain ceramic slurry; after the side wall of the interior of a mould is coated with the demoulding agent, the ceramic slurry is injected into the mould, standing forming is performed, and after demouding drying is performed, a bearing green body is obtained; the bearing green body is calcined to obtain a zirconia ceramic bearing. According to the preparation method, toxicity generated to the environment and operating personnel can be eliminated.
Zirconia ceramic bearing preparation method based on gel casting technology
CHEN LANGUI (author) / LU QING (author) / LI JIAN (author) / LI WEI (author) / WANG WENLI (author) / SUN LIANG (author)
2016-02-24
Patent
Electronic Resource
English
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