I. Application
It is mainly used in bridge rods for automobile and motorcycle headlights and other low-power lamps.
II. Product Features
t is a doped transparent quartz rod, about 150 ° C lower than conventional quartz glass materials. It has good processing properties and can be used for high-speed fast processing lines. It also has low hydroxyl and high spectral transmission properties.
III. Product Type
WQPQ191L. low viscosity quartz rod
IV. Typical Size
| OD Range | OD Tolerance | Out of Round | Bow |
| 2-2.5 | ±0.15 | 0.10% | 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（℃） |
| 2.2 | 6.3*10-7 | 1450 | 950 | 865 |
ii. Impurity Value
| Impurity | Na | K | Mg | Li | Ca | Fe | Al | Ti | Cu |
| MAXvalue | 7 | 5 | 0.5 | 1 | 3 | 1.5 | 25 | 2 | 0.5 |
iii. OH Content
| Typical Value without Baking | After baking |
| ≤30 | ＜10 |
iv. Viscosity and Temperture Curve
