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Graphite felts are designed for use as high temperature insulation in vacuum furnaces and inert gas furnaces, and they are graphitized under 2200C high temperature, so this ensures the very low ash content.
Vacuum furnace insulation
Inert gas furnace insulation
Polysilicon/Monocrystalline silicon furnace insulation
High purity
Low thermal conductivity
High-temperature stability
Easy machinability
| ITEM | INDEX | ||||
|---|---|---|---|---|---|
| Trademark | Rayon-based Carbon Felt LTZ-124-5 | Rayon-based Graphite Felt LTZ-124-6 | PAN-based Carbon Felt LTZ-124-3 | PAN-based Graphite Felt LTZ-124-1 | |
| Material | RCF | RCF | PAN-CF | PAN-CF | |
| Bulk density(g/cm3) | 0.10-0.12 | 0.08-0.10 | 0.14-0.15 | 0.12-0.14 | |
| Carbon(%) | ≥98.5 | ≥99 | ≥98.5 | ≥99 | |
| Thermal conductivity(1150oC W/m .k) | 0.08-0.15 | 0.06-0.14 | 0.12-0.18 | 0.08-0.14 | |
| Tensile Strength (Mpa) | 0.13 | 0.1 | 0.15 | 0.14 | |
| Crushing stress(at 10% compression N/cm2) | 6-10 | 5-8 | 8-12 | 8-10 | |
| Ash(%) | ≤0.05 | ≤0.005 | ≤0.05 | ≤0.005 | |
| Processing temperature | 1200oC | 2300oC | 1200oC | 2300oC | |
| Operating Condition in the air | ≤400oC | ≤400oC | ≤400oC | ≤400oC | |
| Operating Condition in the vacuum | ≥1500oC | ≥2300oC | ≥1500oC | ≥2300oC | |
| Operating Condition in the vacuum In the inert atmosphere | ≥2300oC | ≥3300oC | ≥2300oC | ≥3300oC | |
| Spec | lenght (m) | 16 – 18 | 9 – 12 | ||
| Wide (mm) | 1000-1300 | ||||
| Thickness (mm) | 3/5/8/10/12 |
