Fused silica manufacturer of fused silica manufacturers will select high-quality silica material [sio2> 99%] in the electric arc furnace or resistance furnace melting, the melting temperature for 1695-1720. The high the sio2 melt viscosity fused silica manufacturer at 1900 ℃ for 10 7 power Pa · s, can not be cast molding methods. After cooling, the vitreous, the manufacturer of fused silica can be used as firing products or do not burn products, raw materials.