Ceramic glaze and preparation method thereof
A ceramic glaze and glaze technology, applied in the field of high-performance ceramic glaze and its preparation, can solve the problems of lowering the initial melting temperature of the glaze, pinholes in the glaze surface, and lower product quality, so as to achieve lower melting temperature and smooth surface , the effect of increasing liquidity
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[0031] Example 1: A high-performance matte glaze and its preparation method
[0032] The mineral raw material composition of the ceramic glaze of this embodiment is (weight content): zinc oxide 4%, barium carbonate 10%, feldspar 40%, alumina 10%, talc 5%, calcite 8%, kaolin 8%, silicon Zirconium acid 15%.
[0033] The corresponding chemical composition of the glaze is: SiO 2 49.4%, Al 2 O 3 14.6%, CaO 5.4%, MgO 1.8%, BaO8.3%, ZnO 4.3%, K 2 O 4%, Na 2 O 1.7%, ZrO 2 10.3%, Fe 2 O 3 0.1%, TiO 2 0.1%.
[0034] The specific preparation steps are:
[0035] (1) Weigh the mineral raw materials according to the above formula, add water ball mill (the weight ratio of material: water is 100:45) for 8 hours to obtain a glaze slurry with a 325 mesh sieve remaining 0.3%. After removing iron from the glaze slurry and sieving, spray drying is used to obtain a powder with a moisture content of about 7%, and the powder is conveyed to a press and pressed into shape;
[0036] (2) The compressed raw ...
Example Embodiment
[0042] Example 2: A high-performance matte glaze and its preparation method
[0043] The mineral raw material composition of the ceramic glaze of this embodiment is (weight content): zinc oxide 3%, barium carbonate 8%, feldspar 40%, alumina 6%, talc 5%, calcite 8%, quartz 10%, kaolin 6%, zirconium silicate 14%.
[0044] The corresponding chemical composition of the glaze is: SiO 2 55.8%, Al 2 O 3 11.9%, CaO 5.4%, MgO 1.8%, BaO6.6%, ZnO 3.2%, K 2 O 3.8%, Na 2 O 1.9%, ZrO 2 9.4%, Fe 2 O 3 0.1%, TiO 2 0.1%.
[0045] The specific preparation steps are:
[0046] (1) Weigh the mineral raw materials according to the above formula, add water ball mill (material: water = 100:60) for 8 hours to obtain a glaze slurry with a 325 mesh sieve remaining 0.3%. After removing iron from the glaze slurry, spray drying is used to obtain a powder with a moisture content of about 7%;
[0047] (2) The powder is conveyed to the press and pressed into shape;
[0048] (3) The compressed raw materials are fi...
Example Embodiment
[0052] Example 3: A high-performance bright glaze and its preparation method
[0053] The mineral composition of the glaze (weight content): zinc oxide 3%, barium carbonate 6%, feldspar 30%, talc 8%, calcite 10%, quartz 18%, kaolin 6%, zirconium silicate 15%, low temperature melting Block 4%.
[0054] The corresponding chemical composition of the glaze is: SiO 2 57.7%, Al 2 O 3 8.4%, B 2 O 3 1.5%, CaO 6.2%, MgO2.5%, BaO 5.0%, ZnO 3.7%, K 2 O 3.6%, Na 2 O 1.0%, ZrO 2 10.2%, Fe 2 O 3 0.1%, TiO 2 0.1%.
[0055] The chemical composition of the low temperature frit is: SiO 2 49.8%, Al 2 O 3 10.6%, B 2 O 3 3.4%, CaO 7.5%, MgO 3.4%, BaO 9.6%, ZnO 9.0%, K 2 O 4.4%, Na 2 O 2.3%.
[0056] The specific preparation steps are:
[0057] (1) Weigh the other raw materials except the low-temperature frit in the above formula, and add water ball mill (material: water = 100:45) for 8 hours to obtain a glaze slurry with a 325 mesh sieve remaining 0.3%. After removing iron from the glaze slurry, s...
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