Yijun-sand-based matte porcelain glaze and preparation method thereof
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A technology of light porcelain and glaze slurry, which is applied in the field of matt enamel based on Yijun sand and its preparation, can solve the problems of high preparation price, unstable performance, poor hardness and wear resistance, etc., and achieve good wear resistance and glaze The effect of smooth and uniform surface and stable performance
Inactive Publication Date: 2016-12-21
SHAANXI UNIV OF SCI & TECH
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[0004] The purpose of the present invention is to provide a kind of preparation enamel material based on Yijun sand tailings and use the material to prepare high-hardness matt enamel and its preparation method to solve the problems of high preparation price, poor hardness and wear resistance in the prior art , unstable performance and other issues
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Embodiment 1
[0024] 1) Mix 80% Yijun sand and 20% raw loess uniformly by mass percentage to obtain a mixture, then add 0.4% sodium tripolyphosphate and 1% CMC to the mixture, mix uniformly, and finely grind to 250 mesh , the specific gravity of the prepared glaze slurry is 1.7g / cm 3 ;
[0025] 2) Apply the glaze slurry evenly on the body, raise the temperature to 1210°C, keep it warm for 35 minutes and cool naturally to obtain a high-hardness matte enamel with a Vickers hardness of 7.0GPa.
Embodiment 2
[0027] 1) Mix 70% Yijun sand and 30% raw loess uniformly according to mass percentage to obtain a mixture, then add 0.3% sodium tripolyphosphate and 1% CMC to the mixture, mix uniformly, and finely grind to 250 mesh , the specific gravity of the prepared glaze slurry is 1.7g / cm 3 ;
[0028] 2) Apply the glaze slurry evenly on the body, raise the temperature to 1230°C, keep it warm for 20 minutes and cool naturally to obtain a high-hardness matt enamel with a Vickers hardness of 7.1GPa.
Embodiment 3
[0030] 1) Preparation of cooked loess: Grind the raw loess evenly in a mortar, place it in a high-temperature furnace for calcination at 600°C and keep it warm for 30 minutes. After cooling, use a 900r / h ball mill to pass through an 80-mesh sieve for 30 minutes. Deri loess;
[0031] 2) Mix 50% Yijun sand, 25% raw loess, and 25% cooked loess to obtain a mixture by mass percentage, then add 0.4% sodium tripolyphosphate and 2% CMC to the mixture and mix evenly , finely ground to 250 mesh, and the specific gravity of the prepared glaze slurry is 1.6g / cm 3 ;
[0032] 3) Apply the glaze slurry evenly on the green body, raise the temperature to 1220°C, keep it warm for 40 minutes and cool naturally to obtain a high-hardness matt enamel with a Vickers hardness of 7.0GPa.
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Abstract
The invention relates to a Yijun-sand-based matte porcelain glaze and a preparation method thereof. The preparation method comprises the following steps: uniformly grinding a raw loess coarse material in a mortar, adding into a crucible, calcining to 600-800 DEG C in a high-temperature furnace, keeping the temperature for 30-60 minutes, naturally cooling, carrying out ball milling, and passing through an 80-mesh screen to obtain a fine calcined loess material; mixing Yijun sand, raw loess, calcined loess, feldspar, calcium phosphate, sodium tripolyphosphate and CMC (carboxymethyl cellulose), carrying out fine grinding to 250 meshes, and regulating the specific gravity of the glaze slip to 1.7 g / cm<3>; and uniformly applying the glaze slip onto the billet, heating to 1160-1280 DEG C, keeping the temperature for 20-35 minutes, and naturally cooling. The Yijun sand in the glaze slip contains abundant quartz and a small amount of high-calcium oxides, so that the fired glaze has high hardness and favorable wear resistance. The waste Yijun sand tailings are recycled and reutilized to lower the solid waste emission, reduce the ceramic raw ore consumption and save the mineral resources. The obtained ceramic product has the advantages of low cost, high hardness, favorable wear resistance, resource saving, consumption reduction, cost reduction and the like.
Description
technical field [0001] The invention belongs to the field of ceramic production, and in particular relates to a matt enamel based on Yijun sand and a preparation method thereof. Background technique [0002] Matte glaze is usually also called matt glaze, which refers to a new type of glaze for architectural ceramics with a smooth and glossy glaze surface. The glaze itself shows a medium to weak luster, which is closer to the matte effect. Compared with high-gloss crystal glaze, it is unique. Usually, due to the precipitation of crystals in the glaze when the melt is supersaturated and cooled during the melting process of the glaze layer, under the irradiation of incident light, optical phenomena such as complex reflection and scattering occur on the glaze surface, forming special effects. Generally, matte glazes can be divided into four types: calcium matte, barium matte, zinc matte, and magnesium matte. Different types of matte glazes are obtained by adding different cryst...
Claims
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Application Information
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