Features：
Calcium silicate pipe shells are mainly made of calcium oxide and quartz sand as raw materials, with reinforcing fibers added to ensure strength and toughness. Therefore, calcium silicate pipe shells feature high strength, low construction loss, no deformation under long-term heating, and a long service life
Technical indicators：
| Physical Index | Unit | Value |
|---|---|---|
| Bulk Density (max.) | kg/m³ | 200–230 |
| Cold Flexural Strength (min.) | MPa | ≥0.4 |
| Cold Compressive Strength, 5% Deformation (min.) | MPa | ≥0.8 |
| Linear Shrinkage (%) (1000℃ × 3h) | % | ≤2 |
| Thermal Conductivity (100℃) (min.) | w/m·k | ≤0.069 |
| Max. Service Temperature | ℃ | 650 |
Advantage：
Calcium silicate pipe shells have been improved on the basis of the old process, enhancing their strength. They are stronger and less prone to cracking.
- Calcium silicate pipe shells have better toughness, do not deform after long-term heating, and their original dimensions remain basically unchanged.
- The thermal conductivity of calcium silicate pipe shells is lower than the national standard, providing better insulation.
Calcium silicate board has a high heat resistance and a longer service life.
Production process：
The main raw materials of calcium silicate pipe shells are calcium oxide and quartz sand. The raw materials are ground into powder by machines, and after grinding, they are filtered to ensure the uniformity of the powder. Then, reinforcing fibers are added. After reacting in a reactor, it is injected into a mold and formed under pressure. Finally, it is dried in a tunnel cellar.
Application：
Calcium silicate pipe shells are also widely used in various fields, such as cement plants, metallurgical industries, petrochemical industries, glass industries, power industries, and so on.