How to distinguish between Extreme White Porcelain and Polished Glaze!
Many people now know that porcelain glazed tiles are different from glazed tiles. They belong to two completely different types of tiles. However, the various differences between porcelain polished tiles and polished glazed tiles include differences in process flow, differences in tile structure, differences in raw material structure, differences in microstructure, differences in color, differences in abrasion resistance, differences in gloss, and durability. Do you know the difference between chemical corrosivity, technology maturity, etc.? Do you really know
Many people now know that porcelain glazed tiles are different from glazed tiles. They belong to two completely different types of tiles.
However, the various differences between porcelain polished tiles and polished glazed tiles include differences in process flow, differences in tile structure, differences in raw material structure, differences in microstructure, differences in color, differences in wear resistance, differences in gloss, Do you know the difference between chemical corrosivity, technology maturity, etc.? Do you really know
If you still do n’t know, please listen to us; if you know all, please see what we said right?
1. From the point of view of technological process, there are two types of porcelain throwing bricks.
The first method, dry method: secondary cloth (thin cloth on brick blank)-pressing-drying-surface decoration (jet ink seepage, effect glaze, etc.)-firing-polishing-antifouling treatment
The second method, wet method: cloth-pressing-drying-drenching-drying-surface decoration (jet ink seepage, effect glaze, etc.)-firing-polishing-antifouling treatment
2. From the perspective of the tile structure
Porcelain throwing uses a combination of green body + fine powder, penetrating ink (effect glaze) and penetration aid
The polished glazed tile uses a green body + surface (bottom) glaze + ink, color glaze + transparent glaze (effect glaze)
The difference between the two is in the polishing stage. The polished ceramic layer is polished after firing, while the polished ceramic tile is polished with transparent glaze.
So, what is the difference between porcelain and glaze? Here I tell you!
Porcelain layer is a fine powder after surface decoration (penetrating ink, penetration aid). It is a more refined powder than ordinary powder, which is colored with penetrating ink. (Coloring agent) combined into a colored solution, and then oxidized and colored during the firing process. Among them, porous nano-SiO2 is used as a coloring agent. The penetration aid is used to overcome the surface tension and help the ink penetrate down to the fine powder layer.
For glazed tiles, the glaze layer is transparent glaze, and the glaze is mainly feldspar flux, frit and flux. Among them, the flux can promote the high temperature differentiation reaction and adjust the physical and chemical properties of the glaze layer.
Both have high mechanical strength and anti-fouling performance, but there are differences in wear resistance and chemical corrosion resistance: the surface of polished glazed tile products is glassy transparent glaze with low hardness (below 5 degrees Mohs) Low abrasion resistance. The surface of the porcelain polished brick is a dense porcelain layer, which has good wear resistance and Mohs hardness of 5.5 ~ 6. Can be applied to all occasions including commercial premises.
Abrasion resistance: Porcelain throwing brick
The principle of transparent glaze is that part of the light is reflected back to the eye through the glaze layer after touching the blank, which is a specular reflection of light, usually> 100%. Porcelain throwing brick is that the light hits the porcelain layer to diffusely reflect back to the eyes, ensuring that the aesthetic sense is not stimulated. In the case of the same gloss measured by the instrument, the human sensory porcelain tile is better than the glaze tile.
Finally, chemical resistance.
When the glaze layer is in contact with water, acid, and alkali, it will ion exchange, dissolve, or adsorb with these media to varying degrees, and its erosion mechanism is similar to that of glass. It is carried out between the ions on the network node and the ions in the solution, and then the cations are extracted from the glaze and the silicon-oxygen bonds are destroyed. Therefore, the chemical resistance of the transparent glaze glass is slightly worse. The fine powder forms a dense porcelain layer after sintering at high temperature, and has good chemical resistance.
Article summary: The relevant knowledge of the difference between porcelain and glazed tiles is introduced here. In fact, porcelain and glazed tiles have their own advantages and disadvantages. Friends in need can according to their own needs and economic conditions Come to buy.