硅质保温砖又称轻质硅砖，是一种 SiO2 不小于 91% 的保温耐火材料。硅质保温砖是一种性能优良的轻质保温材料。轻质硅砖以细矿石为原料，加入焦炭、木屑等可燃物质形成多孔结构。硅质保温砖的 RUL 值在 1620℃以上。
| 项目/等级 | GGR-1.00 | GGR-1.10 | GGR-1.15 | GGR-1.20 | |
|---|---|---|---|---|---|
| ω (SiO2) ≥/% | 91 | 91 | 91 | 91 | |
| 体积密度 ≥/(g/cm³) | 1.00 | 1.10 | 1.15 | 1.20 | |
| 冷压强度 ≥/MPa | 2.0 | 3.0 | 5.0 | 5.0 | |
| 再加热时的永久线性变化 ≤/℃ | 1500℃, 2h | / | / | 0.5 | 0.5 |
| 1450℃, 2h | 0.5 | 0.5 | / | / | |
| 0.1MPa 折射率 负载 ≥/℃ | 1400 | 1420 | 1500 | 1520 | |
| 导热系数 ≤/[W/(m-K)]。 (平均温度 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.