Glass bottle production process include:
① raw material pre-processing. The massive raw materials (quartz sand, soda ash, limestone, feldspar, etc.) crushed, the wet raw material is dried iron-containing raw materials for iron treatment to ensure the quality of the glass.
② with the preparation of materials.
③ melting. The glass batch material is heated at a high temperature (1550-1600 ° C) in a pool kiln or a pool furnace to form a liquid glass that is uniform, bubble-free, and complies with forming requirements. ④ forming. The liquid glass into the mold to make the desired shape of glass products, such as flat, all kinds of utensils.
⑤ heat treatment. Through annealing, quenching and other processes, to eliminate or produce the internal glass stress, phase or crystallization, and change the structural state of the glass.