Quartz use in Electrode industry
Silica sand or quartz powder is used as one of the components of welding flux mixture in electrode industry, and for this purpose the silica minerals should contain 97.5 - 99.5% SiO2, 0.05% (max.) Fe2O3, 0.03% (max.) S, having + 100 - 200 mesh size.
High content of SiO2 98.5%- 99.8% . (Depending upon the grades)
Fe2O3: 0.04% and below 0.002 %
Mesh Size: 200 mesh, 300 mesh, 325 mesh
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