Tube is made by two staged method from gas flamed doped transparent quartz glass.
High quality rock crystal is a raw material for producing quartz glass tube.
Depending on spectral characteristics the enterprise can manufacture the
following doped quartz glasses: grade ÊËÁ (quartz doped colourless) absorbing
in ultra-violet part of spectrum to 240-380 nm and grade ÊËÆ (quartz doped yellow)
absorbing in ultra violet and visible part of spectrum to 390-150 nm.
Light transmission coefficient in glass layer of thickness
which is equal to the tube wall thickness at wavelength of
320 nm is not to be more than 65% in wave interval of 400-1000 nm
not less than 90%
Spectral curve transmission coefficient (at thickness of 1,2,10 mm)
of doped quartz glass tube; grade ÊËÁ-3
Doped quartz glass tube is used for manufacturing appliances of special destination.
Light transmission coefficient in glass layer of 1 mm thickness at
the wavelength of 380nm is not to be more than 30% and in wavelength
range of 550-1000nm not less than 90%.
Doped quartz glass tube is thermally stable and stand not less than 15 heating shifts
at heating to 800±20îÑwith the subsequent cooling in water at
temperature of 20±5îÑ C for wall thickness from 3-4 mm
and at 600±20îÑ for the wall thickness more than 4 mm.
Spectral curve of transmission coefficient of doped quartz glass;
grade ÊËÆ-3 (at 1,2,10 mm thickness)
Doped quartz glass bar is applied for manufacturing optical
systems for pumping laser.
ÇDoped quartz glass bar, grade ÊËÆ-7 is used in cylindrical
shape and corresponds to the sizes:
50, 70, 90
70, 90, 130
The wavelength of 430±10 nm is conditionally the boundary
of light transmission. Light transmission coefficient at the
above-mentioned wavelength should not excess over 50% for 10 mm
glass layer without taking into consideration reflection losses.
Plate is applied for devices, instrument and appliances of special destination.
Spectral light transmission of doped quartz glass plate,
grade ÊËÆ-3 characterized by light transmission coefficient
in glass layer thickness of 1mm at wavelength 320 nm is not
to be more than 50% but in range of 700-1000 nm not less than 86%.
Doped quartz glass plate is thermally stable at heating temperature:
Ïðè íàãðåâàíèè äî òåìïåðàòóðû:
(1000±20)îÑ at plate thickness from 2.0 to 3.0 mm
(800±20)îÑ at plate thickness more than 3.0 to 4.0 mm
(600±20)îÑ at plate thickness more than 4.0 mm
with the following cooling in water is not to be cracked, cut off
and bruised on the surface after 10 heating shifts.