Did you make the craftsmanship of bone china tableware?

Bone china white porcelin dinnerware is mainly made of silicon oxide, aluminum oxide and calcium oxide. The higher the content of calcium oxide, the better the color. In nature, there are not many sources of calcium oxide, so animal bone meal is chosen as the source of calcium oxide. Bone china white porcelin dinnerware is made of herbivore bone ashes (mainly Ca3(PO4)2) as raw materials, mixed with high-quality kaolin, quartz and other auxiliary materials, and glaze-fired at 1280°C to produce bone china products. Generally speaking, bone china can be called bone china by adding 25% bone powder to the raw material. However, the bone china with the best texture recognized in the world today has a bone powder content of 45% -51%, and bovine bone is the best one. The production process goes through grouting, mould pressing embryos, dehydration of plaster moulds, as well as preliminary firing, glazing firing, and decal baking. After high temperature firing, it becomes a porcelain with high whiteness, high transparency and fine porcelain. During the firing process of bone china, its regularity, whiteness, transparency, thermal stability and other physical and chemical indicators are all required to be extremely high, so the rejection rate is very high. Due to the exquisite materials, fine production, and strict standards, the value is higher than other types of porcelain. The unique firing process and the addition of bone carbon eliminate the impurities in the porcelain clay. The bone china white porcelin dinnerware appears whiter, finer, transparent, lighter, less flawed, and thinner than ordinary porcelain tableware. It has a special visual The sense of cleanliness and strength are higher than that of ordinary porcelain and twice that of daily-use porcelain. The higher the content of bone meal, the lower the composition of the clay, and the easier it is to burn during the production process. It requires higher technology in forming and increases the difficulty of firing, so it is more precious.
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