How is glass made? What are the main ingredients?
Melting. The glass mixture is heated in a bath or crucible furnace at a high temperature (1550-1600 degrees) to form a liquid glass that is uniform, free of bubbles and conforms to the molding requirements.
Forming。 The processing of liquid glass into desired shapes, such as flat glass, various vessels, etc..
Heat treatment. Through annealing, quenching and other processes, to eliminate or produce glass internal stress, phase separation or crystallization, and change the state of glass structure.
Preparation of batch. According to the product, the composition of the mixture is slightly different. For example, ordinary float glass batch (calculated in accordance with 1 weight boxes of 50 kilograms), need to consume 33.55 kg of quartz sand, limestone, dolomite, 2.96 kg 8.57 kg 11.39 kg of soda, Glauber's salt 0.55 kg, 3.45 kg, 0.03 kg of feldspar powder etc..
Raw material pretreatment. The bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.) are crushed to damp the raw materials, and the iron bearing raw material is treated with iron to ensure the quality of the glass.
