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In the area of packaging, glass bottles have always occupied an important position. It is a kind of very historical packaging material, and has non-toxic, tasteless, transparent, beautiful, barrier good, airtight and many other advantages, become beer, fruit tea, jujube juice and many other beverages preferred packaging materials.
Below Jiangsu Surplus Glass Technology Co., Ltd. for you to introduce the production process of glass bottles in detail.
The production process of glass bottles is: raw material processing--preparation of the mixture--melting--molding--heat treatment, the specific steps are as follows:
1. Raw material pre-processing
The quartz sand, soda ash, limestone and other bulk raw materials crushed, and dry treatment, and then iron containing raw materials for iron removal, to ensure the quality of glass.
2. Preparation of compound materials
3. Melting System
The glass mixture is added to a pool kiln or a pool furnace for high-temperature heating to form a homogeneous, bubble-free liquid glass that conforms to the molding requirements.
The liquid glass is put into the mould to make the glass product of the desired shape.
5. Heat treatment Adopt annealing, quenching and other processes to eliminate or produce internal stress, phase or crystallization of glass and change the structure of glass