Description
JGS1 UV Grade Fused Silica Viewports used for Vacuum Flanges and Components
Product description:
Fused Silica Viewports is made of high purity quartz sand with excellent thermal shock stability and high transmittance. It is widely used in electric light/ laser/ lenses/optical instrument/high temperature window.
China Optical Quartz Glass Grade
|
Name |
Corresponding grade |
Feature |
|
Far Ultraviolet Optical Quartz Glass |
JGS1 |
Transparent in the ultraviolet and visible spectrum; no absorption band in the 185-250nm band; strong absorption band in the 2600-2800nm band; non-luminous, stable light radiation. |
|
UV optical quartz glass |
JGS2 |
Transparent in the ultraviolet and visible spectrum; no absorption band in the 200-250nm band; strong absorption band in the 2600-2800nm band; non-luminous, stable light radiation |
|
Infrared optical quartz glass |
JGS3 |
Transparent in the visible and infrared spectrum; no obvious absorption band in the 2600-2800nm band; |
Applications ：
Etch tanks,
Optical windows,
Temperature resistance support plates
Pedestals for reaction chambers
Quartz cover plates
Temperature resistant accessories on semiconductor equipment
Vacuum coating equipment accessories
Specification：
|
Shape |
Length/OD |
width |
thickness |
Surface quality |
|
Round |
0.5mm to 1200mm |
|
0.05mm to 500mm |
80/50,60/40,40/20,40/20,20/10 |
|
square |
0.5mm to 1200mm |
0.5mm to 1200mm |
0.05mm to 500mm |
80/50,60/40,40/20,40/20,20/10 |
|
Tolerance:±0.02mm to 2mm |
customer |
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|
Other sizes can be customized according to customer requirements |
|
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Quartz Characteristic
|
SIO2 |
99.99% |
|
Density |
2.2(g/cm3) |
|
Degree of the hardness moh’ scale |
6.6 |
|
Melting point |
1732℃ |
|
Working temperature |
1100℃ |
|
Max temperature can reach in a short time |
1450℃ |
|
Acid tolerance |
30 times than ceramic,150 times than stainless |
|
Visible light transmittance |
Above 93% |
|
UV spectral region transmittance |
80% |
|
Resistance value |
10000 times than ordinary glass |
|
Annealing point |
1180℃ |
|
Softening point |
1630℃ |
|
Strain point |
1100℃ |
