 Quartz heaters --Clear quartz tube |
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¡¾Back to quartz heaters¡¿
C lear fused quartz glass tube , which is produced through the advanced productive technique of continuous smelting method, it has the characteristics of high purity, strong transmission , good thermally stable function, clear surface, low contents of hydroxide radical , it is the first used materials of producing halogen lamp , mercury vapor lamp , metal halogen lamp, the contests of hydroxide radical can be controlled within 20PPM\10PPM\5PPM\2PPM according to the demands of customers.
¡ùFeatures
Good thermal and mechanical property, accurate dimensional tolerance, and OH content (1-160PPM) is available according to the requirements of customers.
¡ùApplication
It is widely applied at halogen lamp, mercury lamp, printer lamp tube, stage light, chemical tube, and heat-resistant utensils, etc
¡ù Dimensional Tolerance
Range of OD |
OD |
WT |
Siding |
Out of Round |
Bow/1220mm |
¡Ü6mm |
¡À2.0% |
¡À10% |
12% |
2.0% |
2.5mm |
6.00-15.00mm |
¡À1.25% |
¡À8% |
10% |
1.5% |
2.5mm |
15.00-20.00mm |
¡À1.25% |
¡À10% |
15% |
1.5% |
2.5mm |
20.00-25.00mm |
¡À1.25% |
¡À10% |
15% |
1.5% |
3.0mm |
25.00-30.00mm |
¡À1.35% |
¡À12% |
15% |
1.5% |
3.0mm |
30.00-80.00mm |
¡À1.5% |
¡À14% |
15% |
2.0% |
3.0mm |
¡ù Chemical Composition Unit: ppm
Al |
Fe |
K |
Na |
Li |
Ca |
Mg |
Cu |
Mn |
Pb |
B |
Ti |
20 |
1.0 |
3.5 |
3.5 |
1.0 |
2.0 |
0.5 |
0.3 |
0.5 |
£¼ 0.01 |
£¼ 0.2 |
2.0 |
¡ù Physical Properties
Density 20 ¡æ kg.m-3 (¡Á103) |
2.2 |
Coefficient of expansion 25-300 ¡æ ¡æ -1 (¡Á10-6) |
0.56 |
Softening point ¡æ |
1670 |
Annealing point ¡æ |
1210 |
Strain point ¡æ |
1110 |
Youngs modulus Pa |
7.3¡Á105 |
