Bone china process flow and ingredient ratio distribution

Bone China Process and Ingredient Proportion Distribution is a great invention in China. Since ancient times, the production process has always been the pride of China. Otherwise, the English of China is China, and the English of porcelain is also China. The biggest difference between the two nouns is that one is uppercase C and the other is lowercase c. From this, we can see the importance of porcelain white porcelin dinnerware in our country. Today, I took bone china as an example to introduce the process of bone china in detail. Bone china production can be roughly divided into eight major procedures, namely blank preparation, forming, forming, drying, glazing, burning, decoration and packaging. (Bone china white tires are the first process after firing the glaze, which is different from white porcelain). The main components of ceramic blanks are quartz, feldspar, kaolin (high-quality kaolin-alumina containing 15%-37%, silica 44%-71%, iron oxide content less than 0.5%, high-quality silicon) kaolin, which It is also a good china clay). If it is bone china, add bone meal and add more than 40% herbivore bone meal (such as beef bone meal) is an internationally recognized bone china. Component ratio distribution: 1. Bone meal (40%-60%) is herbivore bone meal, such as cattle and sheep, with cattle bone meal as the best; 2. Clay (5%-20%) is the basic raw material for making chinaware ceramic. This kind of water-containing aluminosilicate mineral is formed by the weathering of feldspar and the geological action of feldspar rock: clay has unique plasticity and combination properties, namely molding performance and firing performance: clay is mixed with water to form soft mud, forming Glazing, coloring, high-temperature baking and other processes become compact and hard ceramic containers. Remarks: Kaolin is a kind of clay mainly composed of kaolin. After feldspar is completely weathered, it forms kaolin, quartz and soluble salt; it is transferred to rainwater and river drifting and re-stored. At this time, quartz and soluble salt are separated to obtain kaolin. Kaolin occupies the largest proportion of porcelain blanks and is a good raw material for porcelain white porcelin dinnerware production. The origin of the name kaolin is very interesting. It is said that in the early 18th century, the French priest Redlecco used a book near Jingdezhen called 'Gailing' for the first time in his book 'Chinese Manufacturing'. The name of this village was named Chinese clay and it was translated as 'kaolin'. Later it was widely quoted and disseminated and became an international term. China's kaolin reserves are large, widely distributed, and diverse. Among the more famous ones are Jiangxi Xingzi Gaoling, Jiangsu Suzhou Gaoling, Hunan Dadeling Gaoling. 3. Feldspar (5%-20%) is used as blanks, glazes, pigments and other materials in ceramic production; 4. Quartz (30%-60%) is the main component of the earth's crust and is indispensable for the silicate industry The main raw materials; 5. Firing temperature: firing about 1200 degrees, glaze firing about 1100 degrees, decorative roasting about 800 degrees, and roasting gold about 650 degrees. Seeing this, the editor of bone china manufacturer Guangdong Hosen chinaware ceramic can't help but sigh: The shaping of porcelain is really not easy. Choose the bear and make a model. After molding, it must be dried. After the enamel is finished, it is fired, followed by various decorations and packaging. A piece of porcelain is really finished. Perhaps, precisely because it is not easy, it has been collected since ancient times, and even some people have been treasured to this day, it is still alive and very good.
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