Description
Lightweight thermal insulation castable refractory is made of silica & alumina lightweight aggregates and powders. Lightweight insulating castable has the characteristics of low density, low thermal conductivity, high refractoriness, sound absorption and heat absorption, mainly used in kilns and related equipment that require insulation and heat preservation.
Specification
| Items | Grades | ||||
| QJ-1.5 | QJ-1.3 | QJ-1.0 | QJ-0.8 | QJ-0.6 | |
| Al2O3/% | 42 | 40 | 35 | 30 | 25 |
| Density/(g/cm³) | ≤1.5 | ≤1.3 | ≤1.0 | ≤0.8 | ≤0.6 |
| CCS/MPa | ≥12 | ≥7 | ≥5 | ≥4 | ≥2.5 |
| 10 | 5.5 | 4.0 | 3.0 | 2.0 | |
| HPLC / % | 1300 ℃×3 h | 1200 ℃×3h | 1000 ℃×3h | 800 ℃×3h | 600 ℃×3 h |
| ±1.0 | |||||
| λ / [W/(m·K)] (350±25)℃ | ≤0.6 | ≤0.55 | ≤0.50 | ≤0.40 | ≤0.35 |
Advantages of Lightweight Insulating Castable
- Low Density: With a density ranging from 0.6 to 1.5 g/cm³, it is lightweight.
- Low Thermal Conductivity: Provides excellent insulation, helping equipment save energy.
- High Refractoriness: Offers long service life and stable performance under high temperatures.
Application
Lightweight thermal insulation castable is mainly used for various industrial kilns, such as blast furnaces, hot blast furnaces, carbon roasting furnaces, carbon calcining furnaces, coke ovens, boilers, lime kilns, cement kilns and glass kilns, etc. They can also be used for exterior walls, interior walls and roofs of buildings.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
