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High-strength deformation-resistant engineering ceramic product and preparation method thereof
The invention belongs to the field of ceramic preparation, and particularly relates to a high-strength deformation-resistant engineering ceramic product and a preparation method thereof. The preparation method comprises the following steps: proportioning washed kaolin, Changxing white clay, calcined quartz, feldspar, pyrauxite, wollastonite and spodumene used as raw material, carrying out ball milling, iron removal, aging, pressure filtration and pulping by stirring to obtain a formed blank, carrying out injection forming to prepare a billet, carrying out bisque firing, drying, and carrying out glaze firing. According to the preparation method, the wollastonite, spodumene and other materials are used instead of partial materials in the traditional ceramic blank formula, and a reasonable firing regime is adopted, thereby promoting the generation of the mullite and the generation of the high-strength corundum phase during firing, and reducing the generation of the liquid glass phase and bubbles. The tight coupling of the billet and glaze and the prolonging of the holding time are beneficial to the growth of the crystal, and the volume density becomes higher. The prepared high-strength deformation-resistant engineering ceramic product has the characteristics of high mechanical strength, small thermal expansion coefficient, deformation resistance and the like.
High-strength deformation-resistant engineering ceramic product and preparation method thereof
The invention belongs to the field of ceramic preparation, and particularly relates to a high-strength deformation-resistant engineering ceramic product and a preparation method thereof. The preparation method comprises the following steps: proportioning washed kaolin, Changxing white clay, calcined quartz, feldspar, pyrauxite, wollastonite and spodumene used as raw material, carrying out ball milling, iron removal, aging, pressure filtration and pulping by stirring to obtain a formed blank, carrying out injection forming to prepare a billet, carrying out bisque firing, drying, and carrying out glaze firing. According to the preparation method, the wollastonite, spodumene and other materials are used instead of partial materials in the traditional ceramic blank formula, and a reasonable firing regime is adopted, thereby promoting the generation of the mullite and the generation of the high-strength corundum phase during firing, and reducing the generation of the liquid glass phase and bubbles. The tight coupling of the billet and glaze and the prolonging of the holding time are beneficial to the growth of the crystal, and the volume density becomes higher. The prepared high-strength deformation-resistant engineering ceramic product has the characteristics of high mechanical strength, small thermal expansion coefficient, deformation resistance and the like.
High-strength deformation-resistant engineering ceramic product and preparation method thereof
ZHOU YUPING (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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