sales@qimglass.com
+86 177 2018 9205
High Precision Half Round Quartz Rods for Optical Couplers
The high precision half-round quartz rod is basic
structural components of optical communication devices. It has high
precision, high hardness, and excellent environmental resistance.Its
coefficient of thermal expansion are the same as that of optical
fiber.It is used in optical devices such as optical couplers, ribbon
fiber welding protectors, high-power lasers, etc.
The
half round quartz rod is melted and drawn at high temperature. The
surface is transparent, which eliminates surface micro-cracks and local
surface hidden cracks in the optical fiber positioning holes. The half
round quartz rod has high strength and is not easy to crack and break
when dispensing glue to fix the optical fiber. The dispensing is
qualified. The rate is high.
Product Parameters
|
Parameters |
Values |
|
Outer diameter OD |
φ0.5≤OD≤φ10mm |
|
Width |
W±0.1mm according to customer requirements |
|
Height |
H±0.05mm according to customer requirements. |
|
Arc Angle R |
High temperature drawing process rounded angle, R < 0.1mm. |
|
φ0.5≤OD≤φ10mm |
L=0.5～100mm±0.2mm, the length can be processed according to customer requirements |
|
Surface |
The product has no cracks, both end surfaces are ground surfaces, and the cylindrical surface is transparent. |
Material Properties of Quartz Glass
The mechanical properties of quartz glass
Density: 2.2g/cm3
Compressive strength: 1100Mpa
Bending strength: 67Mpa
Tensile strength: 48Mpa
Poisson's ratio: 0.14-0.17
Young's modulus: 72000Mpa
Stiffness modulus: 31000Mpa
Mohs hardness: 5.5-6.5
Thermal properties of quartz glass
Deformation point: 1120℃
Softening point: 1680℃
Annealing point: 1210℃
Specific heat (20-350℃): 670J/kg.℃
Thermal conductivity (20℃): 1.4W/m.℃
Thermal expansion coefficient: 5.5x10-7cm/cm.℃
Hot working temperature: 1700-2000℃
Short term usage temperature: 1300℃
Long term use temperature: 1100℃
Electrical properties of quartz glass
Resistivity: 7x107Ω.cm
Insulation strength: 250-400Kv/cm
Dielectric constant Ɛ: 3.7-3.9
Dielectric absorption coefficient:<4x104
Dielectric loss coefficient:<1x104
