Fused Silica Plates
Fused quartz glass sheet is consisting of silica in amorphous (non-crystalline) form. It differs from traditional glasses in containing no other ingredients, which are typically added to glass to lower the melt temperature. Fused silica, therefore, has high working and melting temperatures. The optical and thermal properties of fused quartz are superior to those of other types of glass due to its purity. For these reasons, it finds use in situations such as semiconductor fabrication and laboratory equipment. It has betterultraviolet transmission than most other glasses, and so is used to make lenses and other optics for the ultraviolet spectrum. Its low coefficient of thermal expansion also makes it a useful material for precision mirror substrates
Uses
This product is mainly used in electric light source, electrical appliances (electric), semiconductor, optical communications, military industry, metallurgy, building materials, chemical, machinery, electricity, environmental protection and other fields.
Advantage
1.High temperature resistant:
Quartz plate/round quartz disc/quartz sight glass discperating temperature is 1200℃ to 1500℃.The softening temperature is 1650°C,and the melting temperature is 1750-1800°C.
2.Corrosion resistant, Except hydrofluoric acid, quartz glass disc do not react with any acid and base except hydrofluoric acid.the stability is 30 times of the ceramic,and 150 times of stainless steel.
3.High transmission is 85%-90% for UV-light.
4.Polished surfaces 80/50, 60/40 quality,Clear and clean apperances
5.Electric insulation ,it is 10000 times of usual glass.
Diameter | 0.2-300mm |
Thickness | 0.1-100mm |
Dimension tolerance | +/-0.02mm |
Surface quality (scratch & dig) | 20/10 or better |
Clear aperture | >85%, >90% |
Surface accuracy | λ/10 |
Parallelism | +/-30'' |
Bevel | 0.1~0.3mm x 45 degree |
Coating | AR, BBAR or Custom |
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