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Specifications
1,glass bell jar
2 Sio2 99.99% min
3,Resistance 1100 degree
4, no bubble no airline nice loos
5,ISO 9001-2000
glass bell jar
1, glass bell jar
2 purity 99.99% min
3,Resistance 1100 degree, 1000 long time work
4, no bubble no airline
5,ISO 9001-2000
Advantage of the quartz glass bell jar:
1. High temperature resistant, 1100 degree.
2. Corrosion-resistant
3. Good thermal stability
4. Good transparency for light
5. Good electrical insulation
Chemical composition (ppm)
|
AL |
Fe |
K |
Na |
Li |
Ca |
Mg |
Cu |
Mn |
Cr |
B |
Ti |
|
5-12 |
0.19-1.5 |
0.71-1.6 |
0.12-1.76 |
0.38-0.76 |
0.17-1.23 |
0.05-0.5 |
0.05 |
0.05 |
<0.05 |
<0.1 |
<1.0 |
Spectral transmission at 1.0mm thickness
|
mm |
<220 |
255 |
280 |
315 |
350 |
38 |
590 |
780 |
|
% |
89 |
91 |
93 |
93 |
93 |
93 |
93.2 |
93.4 |
Physical Properties
|
(g/cc)Density20 °C kg.m-3 |
2.2 |
|
Degree of Hardness Moh’s Scale |
5.5-5.6 |
|
Softening point(degree) |
1683 |
|
Annealing point |
1215 |
|
Defoamation Point |
1120 |
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