Product Overview
Precision-machined graphite plates are fundamental components in vacuum furnace hot zones, serving as heating element supports, insulation baffles, workpiece trays, and structural members. Our graphite plates are manufactured from high-quality isostatic graphite with excellent flatness, uniform density, and consistent mechanical properties, ensuring reliable performance in demanding vacuum and atmosphere furnace applications.
Key Features
- Excellent flatness and dimensional stability at high temperatures
- High thermal conductivity for uniform temperature distribution
- High temperature resistance up to 3000°C in vacuum/inert atmosphere
- Good mechanical strength and machinability
- Low outgassing for clean vacuum processing
- Custom sizes, hole patterns, and geometries available
- Available in multiple purity grades for different applications
Technical Specifications
| Parameter | Unit | Standard Grade | High Purity Grade |
|---|---|---|---|
| Material | - | Isostatic Graphite | High Purity Isostatic |
| Bulk Density | g/cm³ | 1.75 | 1.85 |
| Shore Hardness | - | 60 | 75 |
| Flexural Strength | MPa | 35 | 48 |
| Thermal Conductivity | W/(m·K) | 100 | 130 |
| Flatness | mm/m | 0.1 | 0.05 |
| Max Size | mm | 600x600x300 | 600x600x300 |
| Ash Content | ppm | <200 | <50 |
Applications
- Vacuum furnace hot zone structural plates
- Heating element support and mounting plates
- Insulation baffle and shield plates
- Workpiece trays and fixtures
- Graphite fixture plates for heat treatment
- Sintering furnace support plates
- Semiconductor and solar processing equipment
Why Choose Jincheng Graphite Plates?
We supply precision graphite plates and machined graphite components for vacuum furnace manufacturers and heat treatment service providers. Our plates are produced with tight flatness tolerance and uniform material properties, ensuring consistent performance in your furnace. With full CNC machining capability, we can produce plates with custom hole patterns, grooves, pockets, and complex geometries to meet your specific hot zone design requirements.
FAQ
Q: What is the maximum size graphite plate you can supply?
A: Standard maximum plate size is 600mm x 600mm x 300mm thick. For larger plates, we can provide multiple plates that can be assembled and bolted together. Please specify your required dimensions and we will recommend the best solution.
Q: Can you machine custom hole patterns and slots?
A: Yes, we offer full CNC machining services for graphite plates. We can drill holes, mill slots, create pockets, and machine complex geometries according to your drawings. Our machining center handles tight tolerances and complex patterns for custom fixture and support plate applications.
Q: Do you recommend high purity graphite for vacuum furnace applications?
A: For vacuum furnaces operating above 1800°C or for applications requiring minimal contamination, we recommend high purity graphite with ash content below 50ppm. For lower temperature applications, standard grade graphite provides excellent performance at a more economical price point.
Hot Tags: graphite plate, vacuum furnace plate, hot zone plate, graphite support plate, furnace baffle plate, graphite fixture plate, heat treatment furnace, graphite block for aluminum processing, graphite block for copper processing, graphite block for glass manufacturing, graphite block for mechanical system, graphite block for resistance heating, ultra fine graphite block
