How to identify the quality of glazed tiles?

Main answer

Look at the appearance: The appearance mainly depends on the consistency of glaze color, flatness, surface gloss and smoothness Degree, degree of sintering on the back, brand name, etc.

Listen to the sound: The method can be to listen to the sound of knocking. The crisper the glazed tile sound when knocking, the better. The national standard flexural strength is ≥1020N, ??and the flexural strength of our factory is 7280N.

Look at glaze cracks: Glaze cracks in glazed tiles are a common phenomenon. If there are cracks in the tiles, the glaze layer of the glazed tiles will peel off after being exposed to the cold in winter, so the glazed tiles will lose their luster and waterproof properties. The inspection method is to see if there are any cracks as fine as spider silk on the surface of the tile. It will be more obvious after being exposed to rain or soaked in water and dust.

Look at the water absorption rate: the less water the glazed tile absorbs, the better. The more water absorption indicates that the tile has poor frost resistance. The way to check is to compare the weight difference between dry tiles and soaked tiles, which is the moisture content. The national standard stipulates that the water absorption rate is ≤12.0, and the water absorption rate of Jiuyuan Ancient Building glazed tiles is 3 to 5, with excellent frost resistance.