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What is the manufacturing process of glass bottles?


The glass bottle has the advantages of simple manufacturing process, free and changeable shape, high hardness, heat resistance, cleanliness, easy cleaning, and can be used repeatedly. First of all, it is necessary to design and manufacture the mold. The raw material of the glass bottle is quartz sand as the main raw material, and other auxiliary materials are melted into a liquid state at high temperature, and then the essential oil bottle is injected into the mold, cooled, cut, and tempered to form a glass bottle. Glass bottles generally have rigid signs, which are also made from mold shapes. The molding of glass bottles can be divided into three types: manual blowing, mechanical blowing and extrusion molding according to the production method.
① Raw material preprocessing. Glass bottle is a traditional beverage packaging container in my country, and glass is also a very historical packaging material. With many kinds of packaging materials flooding into the market, glass containers still occupy an important position in beverage packaging, which is inseparable from its packaging characteristics that cannot be replaced by other packaging materials. The bulk raw materials (quartz sand (property: silicate minerals), soda ash, limestone, feldspar, etc.) are pulverized, the wet raw materials are dried, and the iron-containing raw materials are subjected to iron removal treatment to ensure the quality of the glass.
②Preparation of ingredients.
③ Melting. The glass batch is heated at a high temperature (1550~1600 degrees) in a pool kiln or pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements.
④Molding. Put the liquid glass into the mold to make glass products of the required shape, such as flat plates, various wares, etc.
⑤ heat treatment. Through annealing, quenching) and other processes, the stress, phase separation or crystallization inside the glass is eliminated or generated, and the structural state of the glass is changed.