Glass bottles are the main packaging containers for food, medicine, and chemical industries. They have good chemical stability; easy to seal, good air tightness, transparent, and the contents of the contents can be observed from the outside; good storage performance; smooth surface, beautiful appearance, colorful decoration; mechanical strength, can withstand the pressure inside the bottle and External force during transportation; wide distribution of raw materials, low price and other advantages. So, do you know how glass bottles are made?

The production process of glass bottles mainly includes: ① Raw material preprocessing. Crushing the bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.), drying the wet raw materials, and removing iron from the iron-containing raw materials to ensure the quality of the glass. ② Batch preparation. ③ Melting. The glass batch is heated at a high temperature (1550~1600 degrees) in a pool kiln or a pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements. ④Molding. The liquid glass Put it into the mold to make glass products of the required shape, such as flat plates, various utensils, etc. ⑤ Heat treatment. Through annealing, quenching and other processes, the stress, phase separation or crystallization inside the glass are cleaned or generated, and the structural state of the glass is changed. .

First of all, it is necessary to design, determine and manufacture the mold. The glass raw material is made of quartz sand as the main raw material, and other auxiliary materials are melted into a liquid state at high temperature, and then 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.

Post time: Jun-03-2019