Silica insulation brick is also called lightweight silica brick, it is an insulation refractory material with a SiO2 of not less than 91%. Silica insulation brick is a kind of lightweight insulation material with excellent performance. Lightweight silica bricks use fine ore as raw material and add coke, wood chips, and other combustible substances to form a porous structure. The RUL of silicon insulation bricks is above 1620℃.
| Item/Grade | GGR-1.00 | GGR-1.10 | GGR-1.15 | GGR-1.20 | |
|---|---|---|---|---|---|
| ω (SiO2) ≥/% | 91 | 91 | 91 | 91 | |
| Bulk Density ≥/(g/cm³) | 1.00 | 1.10 | 1.15 | 1.20 | |
| Cold Crushing Strength ≥/MPa | 2.0 | 3.0 | 5.0 | 5.0 | |
| Permanent Linear Change On Reheating ≤/℃ | 1500℃, 2h | / | / | 0.5 | 0.5 |
| 1450℃, 2h | 0.5 | 0.5 | / | / | |
| 0.1MPa Refractoriness Underload ≥/℃ | 1400 | 1420 | 1500 | 1520 | |
| Thermal Conductivity Coefficient ≤/[W/(m·K)] (Average Temperature 350±10℃) | 0.55 | 0.60 | 0.65 | 0.70 | |
1.Excellent Insulation Performance
2.Good Thermal Shock Resistance
3.Acid Corrosion Resistance
4.Environmental Friendly
1.Metallurgical industry: can be used for smelting furnaces, melting furnaces, rotary furnaces, insulation boards, pipe insulation, pyrometallurgical electrolytic cells, smelting furnaces, etc.
2.Glass industry: can be used for glass melting furnaces, quenching furnaces, glass kilns, glass insulation boards, etc.
3.Iron and steel industry: can also be used for blast furnaces, ironmaking furnaces, converters, insulation layers, and heating furnaces for thermal insulation masonry.