Bone china manufacturers teach you how to distinguish the grade of bone china

How to divide the grade of bone china? Which is the best? Seeing the first-class product written by the merchant, I don't know if it is good or bad. I want to ask whether bone china is divided into two grades or how to grade it. Which one is better? I believe these are the thoughts of people who want to buy bone china. Today, bone china manufacturers will show you how to distinguish products. The so-called bone china was invented by the British in 1794. Named after the addition of ashes (better bones) of cattle, sheep and other herbivores, it is an environmentally friendly green product. The formation of bone china mainly depends on silica, the higher the content of bone powder, the better the color. In normal times, there are not many sources of calcium oxide, so animal bone meal is generally used as the source of calcium oxide. The color of bone china is natural milky white, which is unique to bone meal. Generally speaking, porcelain with 25% bone meal in the raw material can be called bone china. The internationally recognized bone meal content is higher than 40%. The most high-quality bone china generally contains 51% high-quality beef bone meal. Among them, the bone meal component exceeds 40%, and the color of the utensil is milky white, which is a high-grade bone china. After grouting, molding embryos, and dehydrating plaster molds, bone china is fired at high temperature to form transparent bone china. During the calcination process, the rejection rate of bone china is very high. Because of the strict materials, fine production, and strict standards, it is higher than other porcelains. Its firing process and the addition of bone meal make the impurities in the porcelain white porcelin dinnerware clay disappear. Bone china looks whiter, transparent, lighter, has few defects, is thinner than ordinary porcelain white porcelin dinnerware, and has a stronger sense of strength than ordinary porcelain. Times. The higher the content of bone meal, the lower the composition of the clay, the easier it is to break during the manufacturing process, the higher the molding technology required, the more difficult it is to burn, and the more precious it is.
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