Ceramic deformation-resistant glazed tile and preparation method thereof

Abstract

The invention discloses a ceramic deformation-resistant glazed tile and a preparation method thereof. The ceramic deformation-resistant glazed tile comprises a deformation-resistant glaze layer, a ceramic green body layer and a cover glaze layer. The deformation-resistant glaze layer is located on the bottom face and / or the side face of the ceramic green body layer, and the cover glaze layer is located on the upper surface of the ceramic green body layer. The deformation-resistant glaze layer is formed by firing deformation-resistant glaze, the ceramic green body layer is formed by firing a ceramic green body, the difference value between the melting temperature of the deformation-resistant glaze and the melting temperature of the ceramic green body is smaller than or equal to 3 DEG C, andthe difference value between the expansion coefficient of the deformation-resistant glaze and the expansion coefficient of the ceramic green body is smaller than or equal to 3, The deformation-resistant glaze layer is prepared from the following raw materials: potassium feldspar and quartz. According to the ceramic deformation-resistant glazed tile provided by the technical scheme, the deformation-resistant glaze is applied to the tile body, so that the hue of the side surface and / or the bottom surface of the finished glazed tile is consistent with that of the top surface of the finished glazed tile, and meanwhile, the deformation degree of the glazed tile product is stabilized. The invention further provides a preparation method of the ceramic deformation-resistant glazed tile, which isbeneficial to preventing the deformation-resistant glaze from falling off.

Description

technical field [0001] The invention relates to the technical field of architectural ceramics, in particular to a ceramic anti-deformation glazed tile and a preparation method thereof. Background technique [0002] Since the production process of glazed tiles is glazed on the green body layer and then fired, better raw materials are often used for the decorative effect of the glazed layer. In order to reduce costs, manufacturers mostly use cheap raw materials for the green body layer. The difference in the quality of the raw materials of the body layer leads to the difference in hue between the bottom and the face of the finished body, commonly known as "two-layer skin", especially the obvious difference in whiteness and oxidation degree, which makes the color of the bottom surface of the finished ceramic tile and the color tone of the side and top surface It's all different. [0003] Nowadays, wide-body roller kilns are widely used in the production of glazed tiles. There ...

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Problems solved by technology

[0004] In addition, the bottom of the brick adobe generally forms geometric stripes when it is pressed and formed. The density of the ribs of the geometric stripes of the brick and the bottom of the grid is inconsistent, and the shrinkage of the ribs and the bottom of the grid is inconsistent during firing. It will have a direct impact on the flatness of the bricks exiting the kiln at the same time, and often cause a row of bricks parallel to the kiln mouth to have a large and different shrinkage, and the left, middle and right products will have inconsistent concave and convex deformations. There are "arch" and "concave" deformation and degradation defects, which seriously affect the product quality

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