采用火焰法或离子火焰法熔融成球型的非晶态硅微粉。  以不规格的角形石英粉，通过火焰熔融法离子法价格高成球形，具有低应力，好流动性性，比表面积小的二氧化硅颗粒粉体。

Spherical silica powder is an amorphous silica powder which made from irregular silica powder .its made by fusion flame method and high temperature process. It is  featured by good fluidity,low inner stress.