Description
Silica Insulation Bricks based on silicon ore as the main raw material of insulating refractory products.
Silica Insulation Bricks refractoriness and load softening temperature and composition of ordinary Silica Brick or less the same
Since many pores, so compressive strength, slag resistance, corrosion resistance performance not good silica bricks,
Silica Insulation Bricks good thermal shock resistance.
Silica Insulation Bricks Advantages
- Having good thermal conductivity
- Load softening temperature
- Good high temperature mechanical strength
- High temperature stable volume change
- Small residual swell
- Strong acid-resistant slag erosion
Application
Technical Data
| ITEM | QG-0.8 | QG-1.0 | QG-1.1 | QG-1.15 | QG-1.2 |
|---|---|---|---|---|---|
| SiO2 % | ≥88 | ≥91 | ≥91 | ≥91 | ≥91 |
| Bulk Density g/cm3 | ≤0.85 | ≤1.00 | ≤1.10 | ≤1.15 | ≤1.20 |
| Cold Crushing Strength Mpa | ≥1.0 | ≥2.0 | ≥3.0 | ≥5.0 | ≥5.0 |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1400 | ≥1420 | ≥1460 | ≥1500 | ≥1520 |
| Permanent Linear Change On Reheating（%）1450℃X2h | 0～+0.5 | 0～+0.5 | 0～+0.5 | 0～+0.5 | 0～+0.5 |
| 20－1000℃ Thermal Expansich10-6/℃ | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Thermal Conductivity (W/MK) 350℃ | 0.55 | 0.55 | 0.60 | 0.65 | 0.70 |