Custom high borosilicate glass tube Transparent Pyrex tube sight glass for industrial use
High borosilicate glass tube is a kind of high performance scientific research experimental glass tube, specially designed to meet a variety of scientific research and industrial needs, its main components are silica and boron oxide, with excellent heat resistance, chemical corrosion resistance and optical transparency .
High borosilicate glass (also known as hard glass), because of the linear thermal expansion coefficient of (3.3 0.1)×10-6/K, it is also called "borosilicate glass 3.3". It is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high transmittance and high chemical stability. Because of its excellent performance, it is widely used in solar energy, chemical industry, pharmaceutical packaging, electric light source, process jewelry and other industries. Its good performance has been widely recognized by all walks of life in the world, especially in the field of solar energy is more widely used, Germany, the United States and other developed countries have been more widely promoted.
Features:
1. Low coefficient of thermal expansion: the coefficient of thermal expansion of high borosilicate glass is (32.5±0.5)×10^-7/℃, and the volume change is small when the temperature changes, and it can withstand a large temperature difference and is not easy to break.
2. High temperature resistance: high borosilicate glass contains high silica (SiO2) and boron oxide (B2O3), so that it can remain stable at temperatures as high as 820℃.
3. Chemical stability: High borosilicate glass has good resistance to most chemicals, especially acid substances, showing excellent corrosion resistance.
4. Light transmittance: As a transparent material, high borosilicate glass has good light transmittance, which is suitable for optical instruments and application scenarios requiring light transmittance.
5. Mechanical strength: Although high borosilicate glass itself is more fragile, but its mechanical strength and toughness are high, suitable for making thin-walled but durable glass products.
6. Electrical conductivity: At high temperatures, high borosilicate glass has electrical conductivity, which gives it an advantage in some special applications.
7. Biocompatibility: High borosilicate glass has good biocompatibility and low toxicity, and is widely used in biomedical devices and drug packaging.
8. Low dielectric constant: high borosilicate glass has a low dielectric constant, suitable for semiconductor devices and display devices.
Technical Parameter:
| Silicon content: | More than 80% |
| Strain temperature: | 520 ℃ |
| Annealing temperature: | 560 ℃ |
| Softening temperature: | 820 ℃ |
| Refractive index: | 1.47 |
| Transmittance (2 mm) : | 92% |
| Elastic modulus: | 76KNmm-2 |
| Tensile strength: | 40-120Nmm-2 |
| Optical constant of glass stress: | 3.8 * 10-6 square mm/no |
| Processing temperature (104dpas) : | 1220 ℃ |
| Linear expansion coefficient (20-300 ℃) : | 3.3 * 10-6 K-1 |
| Density (20 ℃) : | 2.23gcm-1 |
| Specific heat: | 0.9 jg-1K -1 |
| Thermal conductivity: | 1.2 Wm-1K -1 |
Applications:
- Optical devices: Due to the high light transmittance and low dispersion characteristics of high borosilicate glass, it is widely used in optical instruments, telescope lenses, microscope lenses, etc.
- Laser and optical fiber communication: The high brightness and high light transmittance of high borosilicate glass make it widely used in laser tubes and optical fiber communication.
- Chemical equipment: In the field of chemical industry, high borosilicate glass tubes are used in chemical reactors, distillation towers, extraction towers and other equipment, with high temperature resistance and corrosion resistance.
- Power equipment: high borosilicate glass tube can be used for high voltage cable insulation pipes, fuses, resistors and other equipment, with high temperature resistance, arc resistance characteristics.
- Solar energy industry: high borosilicate glass tubes are used in solar collectors, solar water heaters and other equipment, with high heat resistance and corrosion resistance.
- Pharmaceutical packaging: high borosilicate glass tube is widely used in pharmaceutical packaging, such as medicine bottles, medicine tubes, etc., because of its low toxicity and biocompatibility.
- Home and decorative supplies: high borosilicate glass tubes can be used to make high-end decorative lamps, crafts, tableware, etc., with beautiful transparent, durable characteristics.
- Electronic devices: high borosilicate glass tubes are used in the electronic field to manufacture displays, flat panel displays and other devices, with high brightness and high light transmission.
- Scientific research instruments: high borosilicate glass tubes are widely used in scientific research instruments, experimental equipment and other fields because of their excellent physical and chemical properties.
- New energy field: High borosilicate glass tube is used in the field of new energy for the preparation of LTCC substrate materials and doped ferrite materials, with good thermal, optical, chemical and mechanical properties.
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