What is the manufacturing process of bowls?

The general manufacturing process of ceramic bowls is as follows:

After the raw materials enter the factory, they are selected and washed, and the ingredients are weighed according to the production formula, and then put into a ball mill and ground into fine pieces to achieve the required fineness. After the treatment, the iron is removed and screened, and then according to the different molding methods, the slurry is filtered and dehydrated for machine-made molding, and the mud is vacuum-smelted for later use; for the slurrying process, the slurry is first filtered and dehydrated, and then the slurry is slurried by adding a decoagulant. , remove iron and screen before use; perform vacuum treatment on the mud used for grouting molding to become finished slurry and use it for use.

The molding process: divided into roll molding and grouting molding. Then dry, trim and set aside.

The firing process: After the white porcelain is obtained, it is fired in the kiln, refined, glazed, and glaze fired. The white porcelain after leaving the kiln is inspected to obtain qualified white porcelain.

Color baking process: After the qualified white porcelain is decaled, inlaid with gold and other steps, it is baked in the flower baking kiln. After the kiln is opened, the flower porcelain is inspected to obtain qualified flower porcelain finished products. Extended information

Generally speaking, we can divide ceramic tableware into five categories: magnesia porcelain tableware, magnesia reinforced porcelain tableware, reinforced porcelain tableware, shell porcelain tableware, and colored glazed porcelain tableware . The following is a detailed introduction.

1. Magnesia porcelain tableware Magnesium porcelain is mainly made of talc, a magnesium-rich silicate mineral, as the main raw material of porcelain clay, and is fired at a high temperature of 1380 degrees Celsius. Therefore, magnesia porcelain tableware has outstanding characteristics such as high whiteness, high strength, and high thermal stability. It is as white as jade, crystal clear and moist, and is the best choice for tableware for star-rated hotels. It is now designated as the Great Hall of the People and Diaoyutai State Guesthouse. Porcelain is used for state banquets and has been selected as special porcelain by Beijing Palace Hotel. Magnesia porcelain tableware has unique properties of high strength, acid and alkali resistance, lead-free poison, and easy to wash. It can withstand the bumps and collisions of kitchen operations and is not easily damaged. It is more suitable for mechanical washing, high-temperature cooking and sterilization, and continuous high temperature of electric ovens. and modern lifestyles such as microwave heating. Magnesia porcelain tableware is selected by large hotels in big cities such as Beijing, Tianjin, Shanghai, and Guangzhou, and is favored by foreign businessmen. It has become a "hot item" among tableware exported to Europe, America, Southeast Asia, and the Middle East.

2. Magnesium reinforced porcelain tableware Magnesium reinforced porcelain tableware is made of magnesia stone powder and feldspar powder as the main raw materials, and is fired at a high temperature of about 1340 degrees Celsius. It has extremely high strength. It has very low brittleness, high whiteness, smooth glaze, and a service life 3-5 times that of ordinary ceramics. It is an ideal product among all daily-use porcelains currently suitable for sterilizing tableware. Although the cost of a single product is about 25% higher than that of white porcelain and ordinary strengthened porcelain, due to its long service life, low breakage rate, high grade and good image, the actual cumulative total investment in tableware is more than 50% lower. Porcelain is noble and elegant, with a smooth and soft glaze. It has the characteristics of high temperature resistance, rapid cooling resistance, high temperature resistance, and not easy to scratch. It does not contain lead and other chemical substances. It is a pollution-free green tableware and environmentally friendly tableware. It is an ideal choice for modern hotels, guesthouses and Ceramic tableware products are the first choice of sterilizing tableware companies and are well received by users.

3. Reinforced porcelain tableware Reinforced porcelain is made by adding aluminum, magnesium and other ingredients to high-quality porcelain clay and then firing it with a fire at about 1300 degrees Celsius to allow them to re-crystallize and combine, and then become magnetized into a substance that is impact-resistant and durable. Collision is its specialty. The glaze is milky white and feels delicate. The color glaze of strengthened porcelain is darker than that of magnesia-strengthened porcelain. The tableware currently used in the sterilized tableware market has been gradually replaced by magnesia-strengthened porcelain and magnesium-based porcelain.

4. Shell porcelain tableware Shell porcelain is made from a scientific formula of high white mud, high white glaze and shell powder, fired at a high temperature of more than 1,200 degrees Celsius, and then painted and glazed again. , after a second high-temperature firing, it becomes non-toxic, lead-free, harmless, never fades, not easily broken, and suitable for dishwasher washing. The glaze of shell porcelain tableware is white with blue, which is suitable for users of medium and low-end ceramic tableware.

5. Color-glazed porcelain tableware Color-glazed porcelain is made by directly painting patterns on the embryo before the product is fired, and then firing it at a high temperature. It belongs to underglaze colored ceramics. The patterns on the porcelain are artificially painted and have artistic value. It is a tableware product with a different style from the porcelain above, providing more choices for sterilization centers that require special tableware.