Product Overview
High-purity graphite boats and trays are essential sintering fixtures in powder metallurgy, cemented carbide, and ceramic component production. With excellent high temperature stability, uniform thermal conductivity, and non-reactive surfaces, our graphite boats ensure consistent sintering results and long fixture life in controlled atmosphere and vacuum sintering furnaces.
Key Features
- High temperature stability up to 2200°C
- Excellent thermal conductivity for uniform heating
- Non-reactive with most sintering atmospheres
- Good mechanical strength for repeated use
- Smooth surface for easy part release
- Custom sizes and pocket designs available
- Multiple graphite grades available
Technical Specifications
| Parameter | Unit | Value |
|---|---|---|
| Material | - | Isostatic / Molded Graphite |
| Bulk Density | g/cm³ | 1.70 - 1.85 |
| Shore Hardness | - | 60 - 75 |
| Flexural Strength | MPa | 35 - 50 |
| Max Working Temp | °C | 2200 (inert/vacuum) |
| Max Length | mm | 1200 |
| Max Width | mm | 500 |
| Wall Thickness | mm | 3 - 12 |
Applications
- Powder metallurgy sintering
- Cemented carbide insert production
- Ceramic component sintering
- Magnetic material sintering
- Diamond tool segment sintering
- Friction material sintering
- Electronic component processing
Why Choose Jincheng PM Graphite Boats?
We manufacture precision graphite boats, trays, and sintering fixtures for powder metallurgy and cemented carbide producers. Our boats are designed for durability and consistent performance in high-volume sintering production. We offer standard rectangular boats as well as custom geometries with pockets, dividers, and special shapes to hold your specific parts.
FAQ
Q: How long do graphite PM sintering boats last?
A: Boat life depends on sintering temperature, atmosphere, loading, and thermal cycling. In typical vacuum or protective atmosphere sintering, graphite boats can last for hundreds of cycles. Regular inspection of wall thickness and careful handling will maximize service life.
Q: Can you produce boats with custom pocket designs?
A: Yes, we specialize in custom graphite sintering fixtures. Please provide information about your part dimensions, furnace size, and process requirements. Our engineering team will design optimal boat geometries with pockets and dividers for your specific sintering application.
Q: What graphite grade is best for cemented carbide sintering?
A: For cemented carbide (tungsten carbide) sintering, high-purity isostatic graphite is recommended to minimize contamination and ensure consistent part quality. Our technical team can help you select the optimal grade based on your specific carbide composition and sintering cycle.
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