Double-sided Anti-glare Tungsten Crucible Made Sapphire Crystal Glass

Anti-glare glass is mainly used for aviation, diving table or the mirror surface with big radian. The main principle of anti-glare glass is plated multilayer film on the mirror to prevent light refraction. Anti-glare glass is divided into double-sided anti-glare glass and single-side anti-glare glass, little difference between these two kinds of anti-glare glass, only different in number of coatings. Double-sided anti-glare glass plated on both sides of glass, and single-sided anti-glare glass only plated the inside side.

Watch glass mirror materials used are: acrylic, generally mineral glass and tungsten crucible made sapphire crystal glass. Acrylic is kind of soft texture, easy processing, but wearing resistance is not good. Generally mineral glass mirror is more widely used in watch, having medium hardness. Tungsten crucible made sapphire crystal glass not only has high hardness, but also has good wear resistance so many senior watch brands like to use it as mirror material. Double-sided anti-glare sapphire mirror can be applied to some other special areas. Anti-glare tungsten crucible made sapphire crystal can avoid the light then causing refraction, so it has a good light transmittance and the transmittance rate can reach to 99%.

Production of tungsten crucible made sapphire crystal glass
1. The raw material is placed in a tungsten crucible at 1200 ℃ high temperature decomposition of clean crystal composition.
2. The resulting crystal materials is sintered at 2050 ℃ to obtain the desired crystal bar.
3. After artificial screening, ensure the quality of the resulting sapphire crystal glass.
4. After cutting crystal bar, then using grinding miller to grind sapphire glass surface, grinding work at least four or more times to reach the bright and transparent mirror effect.
5. Finally, to process optical processing on grinded mirror, at a high temperature of 280 ℃coating on the optical media specific material on double-sided.

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