How is glass produced? This problem may be very simple for experts, but for ordinary consumers, there may still be an interest in understanding. Today, we will briefly discuss with Xiaohuan of China Packaging Bottle Network. The production process of glass includes: batching, melting, forming, annealing and other processes. Introduced as follows:
1. Ingredients, according to the designed material list, weigh the various raw materials and mix them evenly in a blender. The main raw materials of glass are: quartz sand, limestone, feldspar, soda ash, boric acid and the like.
2. Melt, the prepared raw materials are heated at a high temperature to form a uniform bubble-free glass liquid. This is a very complicated physical and chemical reaction process. The melting of the glass takes place in the furnace. There are two main types of melting furnaces: one is a kiln, and the glass is contained in the crucible and heated outside the crucible. The small kiln has only one raft, and the big one can have up to 20 rafts. The kiln is produced by gap type, and now only optical glass and color glass are produced in the kiln. The other is a pool kiln in which the frit is melted and the open flame is heated on the upper side of the glass. The melting temperature of glass is mostly between 1300 and 1600.
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