| UV-stop Quartz Glass 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
| 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
| 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
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
| nm |
＜220 |
230-280 |
290-330 |
350 |
450 |
550 |
590 |
780 |
| ％ |
0 |
＜15 |
0 |
15 |
88 |
92 |
93 |
93 |
|
Clear Fused Quartz Glass Tube