Ceramic glazed tile and preparation method thereof

Abstract

The invention discloses a ceramic glazed tile, which comprises a flexible glaze layer, a ceramic body layer and a surface glaze layer, the flexible glaze layer is located on the bottom surface and / or side of the ceramic body layer; the flexible glaze layer is fired by the flexible glaze The ceramic body layer is fired from ceramic bricks, the difference between the melting temperature of the flexible glaze and the melting temperature of the ceramic bricks is less than 3°C, and the expansion coefficient of the flexible glaze and the expansion coefficient of the ceramic bricks The difference between the coefficients is less than 5; the raw materials of the flexible glaze layer include high-expansion titanium frit, low-expansion titanium frit, low-temperature titanium frit, burnt soil, burnt talc and air knife soil. The ceramic glazed tile proposed by this technical solution has a flexible glaze applied to the tile body, so that the color tone of the bottom surface of the finished glazed tile is consistent with that of the side surface and / or the top surface. Furthermore, a method for preparing the above ceramic glazed tiles is proposed, which is beneficial to prevent the falling off of the flexible glaze and ensure that the hue of the finished ceramic glazed tiles is consistent, and the process is simple and the operability is strong.

Description

technical field [0001] The invention relates to the technical field of architectural ceramics, in particular to a ceramic glazed tile and a preparation method thereof. Background technique [0002] The production process of glazed tiles is to glaze the green body layer and then fire. Because the glazed layer bears the decorative effect, it is often produced with better raw materials. In order to reduce costs, manufacturers mostly use cheap raw materials for the green body layer. Because the glazed layer and the green body The difference in the quality of the raw materials of the two layers leads to the difference in hue between the bottom and the face of the finished body, commonly known as "two-layer skin". It is not the same, and it will easily reduce the fracture modulus of the finished ceramic tiles. Seriously, some products have obvious deformation. Contents of the invention [0003] The object of the present invention is to provide a kind of pottery glazed tile, the...

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Problems solved by technology

[0002] The production process of glazed tiles is to glaze the green body layer and then fire. Because the glazed layer bears the decorative effect, it is often produced with better raw materials. In order to reduce costs, manufacturers mostly use cheap raw materials for the green body layer. Because the glazed layer and the green body The difference in the quality of the raw materials of the two layers leads to the difference in hue between the bottom and the face of the finished body, commonly known as "two-layer skin". Not the same, it will easily reduce the fracture modulus of the finished ceramic tiles, seriously, some products have obvious deformation

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