Silica glass inclusions

Produced by rich silica glass line, nodules and stripes, is mainly due to the improper raw material preparation and melted and refractory erosion. When powder mixed uneven, often form sand eggs, namely form rich silicone material mass, in the long run under the action of high temperature material is melt into the vitreous, but failed to spread and become nodules; Make SiO2 everywhere in the powder with hierarchical content is uneven, it formed rich after melted siliceous stripes. In addition, improper quartz particle in the particle composition, coarse particles are stripes.

when melted, if wait with aniseed heap of charging method, the batch of material on the surface of the heap fusible components easily by high flows downwards, caused the increase in the number of SiO2 windrow upper refractory, namely the melting layer. The siliceous refractory erosion down material also formation siliceous lanes and nodules. The parapets and self-closed roof tank furnace USES silica brick masonry, mostly in the process of using the surface of the brick will happen erosion, if furnace life is too long or temperature is too high for the erosion and erosion after the formation of the content, or to melt slip surface drip down along the brick, or in the self-closed drop fall, although sometimes a crystalline substance, but by long-term high temperature melt can be vitrification, due to diffusion in vitreous inclusions.

because of the rich siliceous vitreous inclusion density and refractive index are less than the main body of glass, it can be used as the basis of identification.