I. Application
Far infrared heating field, such as: heater, disinfection cabinet, microwave oven and other types of electric heating appliances.
II. Product Features
It is a kind of opaque opalescent quartz glass processed by a special process, whose appearance is opalescent. It can absorb almost all visible and near-infrared light from electric heating wire radiation, and can convert it into far-infrared radiation with precise size and strong thermal stability.
III. Product Type
WQPQ781,Opaque Quartz Tube
IV. Typical Size
OD Range | ODTolerance | Thickness | WTTolerance | Out ofRound | Siding | Bow |
3<Ф≤10 | ±0.1 | 1~2.0 | ±15% | 2% | 12% | 0.15% |
10<Ф≤20 | ±0.2 | 1~2.5 | ±20% | 1.25% | 12% | 0.15% |
20<Ф≤30 | ±0.25 | 1.5~3.0 | ±20% | 1.25% | 12% | 0.15% |
V. Physical and Chemical Properties
i. Mechanical and Thermal Properties
Density(20℃kg/m3) | Thermal Expansion(200-300℃℃-1) | Softening Point(℃) | Annealing Point(℃) | Strain Point(℃) |
2.1*103 | – | 1670 | – | – |
ii. Impurity Value
Purity more than 95%
iii. OH Content
Typical Value without Baking | After baking |
200 | – |