Quartz glass is a single component of silicon dioxide amorphous material, its microstructure is a simple network composed of silica tetrahedral structural units, due to the Si-O chemical bonding energy is very large, the structure is very tight, so the quartz glass has a unique performance, especially the optical properties of transparent quartz glass is very excellent in the ultraviolet to infrared radiation in the continuous range of wavelengths have an excellent transmittance ratio.

Quartz Glass Processing

Quartz glass is made from natural crystallized quartz (crystal or pure silica), or synthetic silanes melted at high temperatures. After melting the product has good processing performance, in the higher viscosity range, the tube and rod can be such as ordinary glass joinery like thermal processing, but also with diamond or silicon carbide made of abrasive tools for high-speed mechanical processing, so as to make a variety of complex shapes of the instrument and special products. The performance of quartz glass depends mainly on its purity, followed by the process or thermal regime.

Quartz glass processing

Quartz sand can be turned into glass by heating it to 1800 to 2000 degrees. There are three methods of heating, electric arc, gas refining and electrofusion. Raw material pre-processing. Block raw materials (quartz sand, soda ash, limestone, feldspar, etc.) crushed, so that the wet raw materials dry, iron containing raw materials for iron treatment to ensure the quality of glass. Matching material preparation. Melting. Glass with material in the pool kiln or crucible kiln for high-temperature (1550 ~ 1600 degrees) heating, so that the formation of uniform, bubble-free, and meet the molding requirements of the liquid glass. Molding. Liquid glass is processed into products of the required shape, such as flat panels and various utensils. Heat treatment. Eliminate or produce stress, phase separation or crystallization within the glass, as well as change the structural state of the glass through annealing, quenching and other processes.