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UV-stop Quartz Tube >> UV-stop Quartz Tube  


UV-stop Quartz Tube

  This Ce doped glass can stop nearly all the radiation of ultraviolet ray of UV-B&UV-C and big proportion radiation of ultraviolet ray of UV-A.it is an ideal material which stops ultravilet ray and set out maximum visible light .it serves as the material of quartz alogen lamps ,high density discharge lamps and other UV light,which prevent the harm to the skin of the people and the things which has to be under the exposion of UV radiation and set out the maximum visible light at the same time .
For detailed dimensional toletance and technical data please see table I,table II,table III, tableIV.

Dimensional Tolerance (table I)
Range of 0D
0D
WT
Siding
Out of Round
Bow/1220mm
≤6mm
±20%
±10%
12%
2.0%
2.5mm
6.0-15.00m
±1.25%
±8%
10%
1.5%
2.5mm
15.00-20.00mm
±1.25%
±10%
15%
1.5%
2.5mm
20.00-25.00mm
±1.25%
±10%
15%
1.5%
3.0mm
25.00-30.00mm
±1.35%
±12%
15%
1.5%
3.0mm
29.00-38.00mm
±1.35%
±12%
15%
1.5%
3.0mm

Chemical composition&OH (table II)
Cr
Ge
Fe
Mg
Ti
Ca
Al
Na
Li
K
OH
20
0.4
1.5
0.4
100
1.0
16
2.3
0.5
2.0
<25

Physical Properties (table III)
 Density 20 kg.m-3(×103)
2.2
 Coefficient of expansion 25-300 c-1(×10-6)
0.56
 Softening point()
1630
 Annealning point()
1180
 Strain point()
1100
 Youngs modulus(pa)
7.3×105

 Spectral Transmission at 1.0mm Thickness (table IV)
nm
<220
230-280
290-330
350
450
550
590
780
0
<15
0
15
88
92
93
93

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