Basic knowledge of glass bottle manufacturing process
As packaging materials, glass bottles are mainly used in food, oil, wine, beverage, seasoning, cosmetics and liquid chemical products. The main raw materials of glass bottles are natural ore, quartz stone, caustic soda, limestone and so on. Glass bottles have a high degree of transparency and corrosion resistance, contact with most chemicals will not change the material properties. Its manufacturing process is simple, free and changeable shape, high hardness, heat resistance, clean, easy to clean, and can be used repeatedly. First of all to design and manufacture mold, glass bottle raw material with quartz sand as the main raw material, plus other auxiliary materials in high temperature dissolved into liquid, and then fine oil bottle injection mold, cooling, incision, temper, forming glass bottles. Glass bottles generally have rigid marks, which are also made of mold shapes. Glass bottle molding in accordance with the production method can be divided into artificial blowing, mechanical blowing and extrusion molding three. Glass bottles can be divided into the following kinds according to the composition: one is sodium glass two is lead glass three is boron-silicon glass
