First of all, it is necessary to design and manufacture the mold. The glass raw material uses 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. The molding of glass bottles can be divided into three types: manual blowing, mechanical blowing and extrusion molding according to the production method.
Glass bottles can be divided into the following categories according to their ingredients: one is soda lime glass, the other is lead glass, and the third is borosilicate glass. The main raw materials of glass bottles are natural ore, quartz stone, caustic soda, limestone, etc. Glass bottles are highly transparent and corrosion-resistant, and will not change material properties in contact with most chemicals. Its manufacturing process is simple, free and changeable in shape, high in hardness, heat-resistant, clean, easy to clean, and can be used repeatedly. As a packaging material, glass bottles are mainly used for food, oil, alcohol, beverages, condiments, cosmetics and liquid chemical products, etc., and are widely used. However, glass bottles also have their shortcomings, such as heavy weight, high transportation and storage costs, and impact resistance.
