High-density and high-strength calcium silicate board & shaped parts
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Product Introduction
High-density non-stick calcium aluminosilicate board is a kind of asbestos-free refractory material with high strength, low shrinkage rate and low thermal conductivity. It mainly comes in two types: glass fiber reinforced and carbon fiber reinforced. The volume density is generally 800-1000kg/m ³, and the maximum service temperature is 1000° C. Knowles adopts a unique fiber dispersion technology to evenly distribute the fibers in the calcium silicate matrix In this process, the high-temperature resistance and thermal shock resistance of the board have been greatly enhanced. High-density non-stick calcium aluminosilicate board features excellent thermal shock stability, superior mechanical processing performance, and non-stick aluminum properties. It can be conveniently processed into various precision components and is mainly used in the non-ferrous metallurgy industry, especially in LPDC,HPDC,CPC and gravity casting related equipment, such as hot top rings, transition plates, covers, gate plates, nozzles, casting boxes, flow channels, sleeves, etc.
Technical Specifications
| Item | Unit | T Plate | C Plate | G Plate |
|---|---|---|---|---|
| Maximum Heat Resistance Temperature | ℃ | 1000 | 1000 | 1000 |
| Bulk Density | Kg/m³ | 850 | 820 | 1020 |
| Flexural Strength | Mpa | 7.2 | 8.2 | 9.0 |
| High-Temperature Flexural Strength (750℃) | Mpa | 14 | 16 | 17 |
| Thermal Conductivity (400℃) | W/m·k | 0.11 | 0.11 | 0.14 |
| Thermal Conductivity (800℃) | W/m·k | 0.16 | 0.14 | 0.23 |
| Thermal Expansion Coefficient (100℃) | % | 0.02 | 0.02 | 0.02 |
| Thermal Expansion Coefficient (200℃) | % | 0.02 | 0.02 | 0.02 |
| Thermal Expansion Coefficient (400℃) | % | 0.14 | 0.14 | 0.14 |
| Thermal Expansion Coefficient (600℃) | % | 0.30 | 0.30 | 0.30 |
| Thermal Expansion Coefficient (700℃) | % | 0.38 | 0.38 | 0.38 |
| High-Temperature Linear Shrinkage (850℃×3h) - Length/Width | % | 0.2 | 0.2 | 0.16 |
| High-Temperature Linear Shrinkage (850℃×3h) - Thickness | % | 1.2 | 1.2 | 1.0 |
| Application | - | N-14 | N-17 | In Contact with Molten Aluminum |