Ceramic glazed tile and preparation method thereof

Abstract

The invention discloses a ceramic glazed tile. The ceramic glazed tile comprises a flexible glaze layer, a ceramic green body layer and a surface glaze layer, and the flexible glaze layer is located on the bottom surface and / or the side surface of the ceramic green body layer; the flexible glaze layer is formed by firing flexible glaze, the ceramic green body layer is formed by firing a ceramic green body, the difference value between the melting temperature of the flexible glaze and the melting temperature of the ceramic green body is smaller than 3 DEG C, and the difference value between theexpansion coefficient of the flexible glaze and the expansion coefficient of the ceramic green body is smaller than 5; and the flexible glaze layer is prepared from high-expansion titanium frit, low-expansion titanium frit, low-temperature titanium frit, burnt soil, burnt talc and Qidao soil. According to the ceramic glazed tile provided by the technical scheme, the tile body is coated with the flexible glaze, so that the tone of the bottom surface of the glazed tile finished product is consistent with that of the side surface and / or the top surface of the glazed tile finished product. The preparation method of the ceramic glazed tile is beneficial to preventing the flexible glaze from falling off, ensures that the hue of the finished ceramic glazed tile is consistent, and is simple in process and high in operability.

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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