fused silica for optical glass

Fused silica is manufactured from silica sand through high temperature fusion cooling smash and selecting. The powder is produced using fused silica lump as material,it is white powder of high purity and amorphous with the quality of low linear expansion coefficient, low stress and low radioactivity.

CHEMICAL COMPOSITION %
SiO2 =99.9
Fe2O3 =15PPM
Li2O =1.0PPM
Al2O3 =25PPM
K2O =20PPM
Na2O =11PPM

Application
Used in precision casting
Refractory and optical glass manufacturing
Grinding wheel abrasive and high quality glass production
Mainly applied in plastic seal used in large-scale and extra large-scale integrate circuit
Epoxy resin pouring quartz rubber and other chemical industries


fused silica for optical glass