Hunan MTR Co., Ltd.
Hunan MTR Co., Ltd.
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Conventional Composite Hard Felt - Cylinder
Conventional composite hard felt 0.15-0.25 Thermal conductivity,above 2000 ℃ Refractory temperature,Operating temperature in air ＜ 350 ℃
The Conventional Composite Hard Felt working temperature in a vacuum <2200 ℃,Operating temperature in the atmosphere: <3000 ℃
Features:
Conventional Composite Hard Felt is a new type of thermal insulation material compounded by a special process.
Hard Felt Suitable for Vacuum sintering furnace. (Carbide sintering furnace, Quenching furnace, Carburizing furnace, Pressurized gas quenching furnace, Metallurgical powder sintering furnace, Medium frequency induction furnace, Brazing furnace, Ceramic sintering furnace)
Advantages:
No pollution in hot cell, pressure resistance, strong anti-radiation ability, long service life, energy-saving, resistance to airflow impact, good thermal insulation effect, Its life span is 3 times that of soft felt.
Characteristic:
Polyacrylonitrile-based carbon felt is a kind of 3-16mm thick felt made of the polyacrylonitrile-based original felt after thermal stabilization and carbonization treatment. Since 90% of carbon felt is pores, it has excellent thermal insulation performance in vacuum or inert atmosphere,especially under high-temperature conditions, it has the characteristics of lightweight, small specific heat capacity, soft texture, good thermal insulation, easy operation, etc. It has stable performance and is especially suitable for intermittent operation of the high-temperature vacuum furnace, which can save a lot of energy.
Physical and chemical indicators:
| main material | PAN-CF / asphalt-CF / viscose-CF | Sheet specifications | length(mm) | 10-3000 |
| Bulk density(g/CM3)) | 0.28-0.32 | 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(％) | ≧96.5 | Wall thickness(T) | 5-150 | |
| bending strength(Gpa) | 1.8-3.0 | Tube height | 100-3000 | |
| Flexural strength(Gpa) | 1.2-2.5 |
Use environment | air(℃) | ≦350 |
| ash content(ppm) | ≦300 | vacuum(℃) | ≦1800 | |
| Processing temperature | ≧1600 | Inert atmosphere(℃) | ≦2650 |
