Wear-resistant glaze for glazed bricks, and preparation method thereof

Abstract

The invention discloses a wear-resistant glaze for glazed bricks, and a preparation method thereof. The wear-resistant glaze is prepared from raw glaze powder, No.1 frit powder and No.2 frit powder, wherein the raw glaze powder comprises, by weight, 8-12% of kaolin, 10-18% of calcined kaolin, 12-20% of quartz, 12-20% of dolomite, 8-15% of calcined talc, 8-15% of nepheline, 5-10% of zinc oxide, 3-6% of barium sulfate and 6-12% of strontium carbonate. The raw materials of the No.1 frit powder comprise zircon sand and barium sulfate, and raw materials of the No.2 frit powder comprise kaolin, calcined talc, fluorite and barium sulfate. The glaze disclosed by the invention contains barium sulfate, so that the color development condition can be improved, the problem of color difference of red and yellow ceramic ink-jet inks during firing of a product is avoided, and the transparency of the wear-resistant glaze is improved under the condition that the hardness and the wear resistance are notinfluenced.

Description

technical field [0001] The invention relates to the field of glazes for polished glazed tiles, in particular to a wear-resistant glaze for glazed polished tiles and a preparation method thereof. Background technique [0002] Glazed tiles prepared from glazes with low wear resistance are easy to be scratched, and products with poor wear resistance will be used for a long time, the gloss will drop significantly, and the surface will be dull, which will seriously affect the appearance. At present, by introducing ultra-fine corundum powder into the glaze to increase the content of alumina in the glaze, the hardness of the glaze is increased, and the wear resistance of the glaze surface is improved to a certain extent. [0003] However, in practical applications, although corundum or calcined alumina can be added to the formula to increase the hardness of the glaze, due to the high melting temperature of the material itself, enough co-solvents need to be considered in the formula...

AI Technical Summary

Problems solved by technology

[0003] However, in practical applications, although corundum or calcined alumina can be added to the formula to increase the hardness of the glaze, due to the high melting temperature of the material itself, enough co-solvents need to be considered in the formula design, resulting in too much glass phase , so that the effect of improving wear resistance is not obvious

Moreover, the existing raw materials also need to consider the requirements of the glaze process, and high-activity aluminum materials such as kaolin cannot be used in large quantities, but the application of other high-alumina materials will lead to poor abrasion resistance and poor color development of the glaze. The problem

Dark polished glaze products have extremely high requirements on the light transmittance and color development effect of the glaze. It is difficult for the current polished glaze to balance the wear resistance and color development contradictions of the glaze formula. Red and yellow in polished glaze products Areas prone to chromatic aberration

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