Add 325#mesh chromite powder in the production of glass tubes aims to achieve uniform dispersion of chromium using its moderate particle size, thus imparting a stable green (or brown) color, while balancing melting efficiency and coloring effect.
Coloring function: The chromium trioxide (Cr₂O₃) in the chromite powder reacts with the glass matrix under high-temperature melting to form a stable green compound, which is often used in container glass that requires UV resistance such as beer bottles and medicine bottles.
Particle size adaptability: 325#mesh (particle size approximately ≤45 μm) is the basic process standard particle size for glass coloring. It not only ensures rapid dissolution and dispersion in molten glass, avoids streaks or spots, but also avoids flying losses or excessive costs due to excessive fineness (such as 1000 mesh or more).
Process Stability: Particles of this mesh size are stable in volume at high temperatures and are not easy to crystallize. They can ensure uniform color of the glass tube without affecting the physical properties of the tube (such as light transmittance, chemical resistance).
chromite powder 325#mesh:
