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Difference between pottery and porcelain |
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The pottery is burnt temperature is generally lower than the porcelain, even reach under 800 degrees Centigrade the most low, can reach as high as about 1100 degrees Burning into temperature higher of porcelain, mostly above 1200 degrees Centigrade, the ones that even have reach about 1400 degrees CentigradeThe burning into temperature high of porcelain, the foetus body frits basically, the sound is clear and melodious while beating, it is very difficult with the general steel knife to mark the mark of the ditch the foetus body surface. |
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What is Heat resistant glass |
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The heat resistant glass is extremely low, can bear 150 degrees Centigrade of difference temperature in extremely short time.The swell factor of the heat resistant glass is 32 , can resist 500 degrees of high-temperature flame . In durable comparison, our company products adopt the high pure ore , High transparent ,high light and pure white without impurity that the glass appears . at the same level with Japan's standards, the glass is not apt to haze and embrittling . |
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What is Bone China porcelain |
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According to the bone porcelain standard that Britain has, contain 30% and come from three calcium of phosphoric acid in animal's skeleton, and the finished product has printing opacity to produce, is called the bone porcelain.The standard of U.S.A. is set up in one hundred point 25 fen at least.
The porcelain quality is fine and smooth, white degree is high, translucence is good, the rule of the ware is whole, the picture is bright, used for making top-grade daily porcelain and advanced artistic furnishings porcelain extensively. |
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How to distinguish the quality of the porcelain |
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The porcelain needs high-temperature about 1260 degrees in the kiln, the porcelain clay will be turned into as status softly in the kiln, If the factory's technology or apparatus is not enough excellence and carefully, every products will out of shape usually, and the apt position out of shape locates which the circle place of pot cover in the container.
Check the surface of glaze whether smooth and shiny, then check the glaze holes and black points in the porcelain surface too, if the porcelain surface is too many glaze holes and black points ,ifferentiate out the careful degree of the porcelain briefly according to these basic ways |
