Carbon & Graphite Felt
Rigid Graphite Felt
The production process of rigid graphite felt adopts professional technology and integrates graphite paper, graphite felt, and carbon cloth through a unique method. It is then cured and formed, followed by secondary high-temperature purification.
Graphite hard felt exhibits high purity and a rich carbon content, showcasing excellent ablative resistance and thermal shock resistance. Its air scouring, heat insulation, and heat preservation performance are also outstanding. It is primarily used in ultra-high temperature vacuum high-pressure sintering furnaces, as well as in the electronics, semiconductor industries, solar photovoltaic sector (including polycrystalline casting furnaces and single crystal furnaces), and other vacuum industrial furnace equipment within the graphite carbon industry.
Graphite Felt - Ideal Thermal Insulation Material For Industrial Furnaces
Graphite felt is an ideal material for heat insulation in vacuum furnaces and inert gas furnaces. SHJ supplies graphite soft felt with a width of up to 1600mm and a thickness of 5mm or 10mm, while graphite rigid felt can be up to 2800mm wide, available in both sheet and cylindrical forms. The size and specifications can be customized according to the conditions of use. Our graphite felt can be purified to have a total ash content as low as 20 ppm.
Features
Our PAN-based and Rayon-based graphite felts feature light weight and low thermal conductivity, while also possessing high tensile strength, high tensile modulus, low density, high temperature resistance, ablation resistance, and corrosion resistance. In addition, they are characterized by high electrical conductivity, low thermal expansion, and self-lubricating properties. Therefore, they are the optimal heat insulation materials for industrial furnaces.
Specifications
| Material | Graphite Rigid Felt (Pan-based) | Graphite Rigid Felt (Pan-based) | Graphite Rigid Felt (Rayon-based) |
|
|---|---|---|---|---|
| Bulk Density | g/cm3 | 0.17 | 0.2 | 0.15-0.17 |
| Compressive Strength | MPa | 0.3 | 0.35 | 0.25 |
| Thermal Conductivity (@1000℃) | W/(m.k) | 0.35 | 0.43 | 0.20 |
| Ash | ppm | ≤200 | ≤200 | ≤200 |
| Maximum Operating Temperature | ℃ | 3000 | 3000 | 2400 |
| Surface Treatment | We can provide various processing methods for graphite rigid felt according to the needs of users, including applying hardened coatings, attaching graphite paper, pasting carbon cloth, and attaching C/C plates. | |||
| Maximum Size | mm | Sheet: 2800×2100×300; Cylinder: φ1800/φ1400×1800 | ||
| Grade | TSF1-01 | TSF3-01 | |
|---|---|---|---|
| Material | Graphite Soft Felt (Pan-based) | Graphite Soft Felt (Rayon-based) |
|
| Bulk Density | g/cm³ | 0.13 | 0.1 |
| Thermal Conductivity (@1000℃) | W/(m.k) | 0.24 | 0.15 |
| Ash | ppm | ≤500 | ≤200 |
| The Maximum Operating Temperature | ℃ | 3000 | 3000 |
| Maximum Size | mm | Width: 1600; Thickness: 5,10 | |
*The above values, sizes are typical, not guaranteed.
*The parameters in this table are standard products.
If high purity products are required, purification treatment can be provided, with a purified ash content of < 20PPM maximum.
Special needs and high-end series products can be customized through negotiation and communication with our company.