Graphite Hard Felt Features:
Temperature resistance: 1800 ℃ in a vacuum, 2850 ℃ in inert gas
High rigidity /high strength
Excellent ablation resistance
Thermal insulation performance
No short fiber drop
Low thermal conductivity
Self-supporting
Thermal shock resistance
Airflow erosion resistance
| Material: |
Polyacrylonitrile |
| Product Type: |
Thermal insulation sheet |
| Thermal conductivity: |
0.15-0.25 |
| Refractory temperature: |
above 2000 ℃ |
| Material thickness: |
5-300mm |
|
CUSTOM Size
|
Plate length: 10--3000mm
Plate width: 10-2000mm
Plate thickness: 5-300mm
|
| Form: |
Microporous |
| temperature |
Operating temperature in air: < 350 ℃
Working temperature in vacuum: < 2200 ℃
Operating temperature in atmosphere: < 3000 ℃
|
| Carbon content: |
above 98% |
| Density: |
0.20-0.30g.cm3 |
| Core material: |
polyacrylonitrile |
| Grade: |
A customized processing |
Graphite hard felt (commonly known as carbon fiber composite hard felt, cured felt, carbon fiber-reinforced, etc.) is made by special process that integrates graphite paper, polyacrylonitrile-based carbon felt, and polyacrylonitrile-based carbon cloth into one body, curing After molding, then primary and secondary high-temperature treatment.
Graphite Hard Felt Sheet is mainly used in vacuum and various metallurgical industrial furnaces (single crystal growth furnace, polycrystalline casting furnace, polycrystalline reduction furnace, polycrystalline ingot furnace, high-pressure gas quenching furnace, hot isostatic pressing furnace, thermal balance furnace, low-pressure sinter Furnace, pressure vacuum sintering furnace, etc.
The main use of Graphite Hard Felt Sheet is as a thermal insulation material for single crystal silicon smelting furnace. In the chemical industry, it can be used as a filter material for high purity corrosive chemical reagents. Under the non-oxidizing atmosphere, the temperature of the graphite felt can reach 2850℃.
Physical and chemical indicators:
| main material |
PAN-CF / asphalt-CF / viscose-CF |
Sheet specifications |
length(mm) |
10-3000 |
| Bulk density(g/CM3)) |
0.22-0.28 |
width(mm) |
10-2000 |
| Thermal conductivity |
0.15-0.25(25℃)0.40-0.45(1400℃)
|
thickness(mm) |
5-300 |
|
Barrel specifications
|
diameter(Φ) |
Φ100-Φ2500 |
| Carbon content(％) |
≧99 |
Wall thickness(T) |
5-150 |
| bending strength(Gpa) |
1.5-3.2 |
Tube height |
100-3000 |
| Flexural strength(Gpa) |
1.0-2.5 |
Use the environment
|
air(℃) |
≦350 |
| ash content(ppm) |
≦200 |
vacuum(℃) |
≦2200 |
| Processing temperature |
First ≧1800
Second≧2200
|
Inert atmosphere(℃) |
≦3000 |
Hunan MTR New Material Technology Co., Ltd. has perfect production technology and equipment, we can customize products of various sizes and shapes to meet your needs for various vacuum and high-temperature furnace insulation materials. Sincerely welcome your inquiries.
Product Tags:
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2850 ℃ In Inert Gas Polyacrylonitrile Hard Felt Rigid Graphite Board Width 10-2000mm Images
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