- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
Product Description
Quartz glass is made by melting various pure natural quartz. The linear expansion coefficient is extremely small, which is 1/10~1/20 of ordinary glass, and has good thermal shock resistance. Its heat resistance is very high, the temperature for regular use is 1100℃~1200℃, and the temperature for short-term use can reach 1400℃.
The formation of quartz glass is the result of its high melt viscosity at high temperature. It is used in the manufacture of semiconductors, electric light sources, semiconductor communication devices, lasers, optical instruments, laboratory instruments, electrical equipment, medical equipment and high temperature and corrosion resistant chemical instruments, chemical industry, electronics, metallurgy, building materials and national defense industries. very broad.
Product Characteristics
1. Good high temperature resistance
2. Good high pressure resistance
3. Good electrical insulation
4. Transmits UV and IR
5. good acid resistance
6. High light transmittance
7. Customizable size and shape
Data Sheet
QUARTZ GLASS STANDARD TEST DATA
TESTING ITEM | STANDARD RULES | TEST RESULT |
Coefficient of expansion | 5.5×10-7/℃ | 5.5×10-7/℃ |
Annealing point °C | 1120℃±25 | 1120℃ |
Density r | 2.23 g · cm-3 ±0.1 g · cm-3 | 2.24 g · cm-3 |
Softening point °C | 1730℃±40 | 1700℃ |
Working point °C | 1200 ±10 | 1200 |
Maximum short-time working temperature °C | 1450 ± 10 | 1450 |
Bending strength | > = 67Mpa | 67Mpa |
Tensile strength | >=40Mpa | 48Mpa |
Specific heat (20~350℃) | 6701/kg.℃ | 6701/kg.℃ |
Thermal conductivity(20℃) | 1.4 W/m.℃ | 1.4 W/m.℃ |
Resistivity | 7 x 107 Ω.cm | 7 x 107 Ω.cm |
Dielectric strength | 250~400 Kv/cm | 250~400 Kv/cm |
Dielectric constant | 3.7~3.9 | 3.8 |
Dielectric absorption coefficient | <4 x 104 | <4 x 104 |
