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Heating Insulation Graphite Barrel
BZNCarbon manufactures premium heating insulation graphite barrels, designed for high-temperature applications in vacuum and inert environments. These barrels are produced using rigid graphite felt—available in both PAN-based and Rayon-based grades—and processed at 2200°C or 2600°C for outstanding structural and thermal performance.
Description
Graphite insulation barrels serve as thermal shields or containment layers in high-temperature systems. They are made by bonding rigid graphite felt boards into cylindrical forms that offer excellent heat insulation, low thermal conductivity, and long operational life. These barrels are customizable in thickness, diameter, and height to suit various industrial furnaces and reactors.
Application Areas
Crystal growth furnaces (CZ, Bridgman methods)
Vacuum and inert gas sintering systems
Photovoltaic and semiconductor heat chambers
Aerospace thermal containment
Nuclear insulation and shielding systems
Technical Specifications – BZN-3 (PAN-Based Rigid Felt, 2200°C)
| Property | Value |
|---|---|
| Density | 0.18 g/cm³ |
| Carbon Content | >99.9% |
| Ash Content | ≤200 ppm |
| Flexural Strength | 0.90 MPa |
| Compressive Strength (5% deformation) | 0.07 MPa |
| Thermal Conductivity @ 1000°C | 0.32 W/m·K |
| Thermal Conductivity @ 1500°C | 0.44 W/m·K |
| Thermal Conductivity @ 2000°C | 0.59 W/m·K |
| Volatile Content | 0% |
| Electrical Resistivity (Perpendicular) | 900 mΩ·cm |
| Electrical Resistivity (Parallel) | 70 mΩ·cm |
| Max Operating Temp (Vacuum) | 3600°C (6512°F) |
| Heat Treatment Temperature | 2200°C |
Available Sizes
| Dimension | Range |
|---|---|
| Thickness | 10–100 mm (standard: up to 150 mm) |
| Width | 10–1500 mm |
| Height | Up to 3000 mm |
| Raw Material | PAN or Rayon rigid graphite felt |
Custom production available as per customer drawings or specifications.
Packaging and Storage
Individually wrapped in plastic and packed in reinforced cartons
Store in dry, ventilated conditions
Shipped as non-dangerous goods
