超清防火硼硅玻璃防火硼硅
Our borosilicate float glass is made up of about 15% boron trioxide, which is that magical ingredient that completely changes the behavior of glass.
Features
(1) Excellent visual effect
(2) Powerful effect on Fire, hydrolysis and Chemical Resistance
(3) High resistance to thermal shock.
BOROSILICATE FLOAT GLASS 3.0
1. Household electrical appliance (panel for oven and fireplace, microwave tray etc.);
2. Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles);
3. Lighting (spotlight and protective glass for jumbo power of floodlight);
4. Power regeneration by solar energy (solar cell base plate);
5. Fine instruments (optical filter);
6. Semi-conductor technology (LCD disc, display glass);
7. Iatrology and bio-engineering;
Mechanical Properties
| Density (g/cm3) (at 25°C) | 2.23±0.02 |
|---|---|
| Knoop hardness | 480 |
| Flexure strength | 24Mpa |
| Coefficient of thermal expansion (α) (0-300°C) | 3.3±0.1×10-6 |
| Softening point (°C) 830±10 | 830±10 |
| Strain point (°C) | 521±10 |
| Specific heat capacity | (2-100°C)0.83KJ×(kg×K)-1 |
| Thermal conductivity | 1.2W×(m×k)-1 |
| Thermal shock resistance(K) | 300 |
| Temperature performance(K) | 200 |
| Maximum working temperature | (>10h, 600°C), (>10h, 550°C) |
| Water resistence |
ISO719/DIN12111, HGB1 ISO720, HGA1 |
| Acid resistance | ISO1776/DIN12116, 1 |
| Alkali resistance | ISO1776/DIN12116, 1 |
| Refractive index | Nd: 1.47379 |
| Transmittance (5mm) | >92% |
| Specific resistance 1g | 250°C, 8.0Ω×cm |
| Dielectric loss | Tan , 38×(10)-4 |
| Dielectric Constant | 4.7 |
| SiO2 | 79-82% |
| B2O3 | 8-14% |
| Na2O | 2-4% |
| Al2O3 | 1-6% |
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