In high-temperature industries such as semiconductor manufacturing, powder metallurgy, and precision casting, the reliability of your thermal processing carriers directly impacts product yield. Our High-Purity Graphite Sintering Trays are engineered from premium synthetic graphite and manufactured using advanced CNC machining centers. This ensures exceptional dimensional accuracy and long-term stability in the most demanding thermal environments.
Technical Advantages
1. Precision CNC Machining & Tight Tolerances
Unlike standard molded components, our trays are produced through high-precision CNC (Computer Numerical Control) machining. This process allows for complex geometries with incredibly tight tolerances, ensuring perfect alignment with automated production lines and repeatable accuracy for every batch.
2. High-Purity Synthetic Graphite Material
We utilize high-purity synthetic graphite characterized by a low Coefficient of Thermal Expansion (CTE). This material choice ensures the trays maintain their structural integrity and geometric shape during rapid heating and cooling cycles, significantly reducing the risk of thermal deformation.
3. Thermal Conductivity and Uniformity
The high thermal conductivity of our graphite facilitates rapid and uniform heat distribution. This accelerates the sintering process and ensures that the workpieces reach the target temperature simultaneously, minimizing internal stresses and enhancing the quality of the final product.
4. Chemical Inertness and Durability
Designed for use in vacuum or reducing atmospheres, our high-purity trays are chemically inert and resistant to most corrosive environments. They effectively prevent contamination of sensitive materials, such as those used in semiconductor processing, while offering high resistance to thermal shock.
Key Applications
- Semiconductors & Electronics: Precision jigs for wafer processing and vacuum sintering of electronic components.
- Powder Metallurgy: Reliable carriers for sintering hard alloys and tool steels at extreme temperatures.
- Metal Heat Treatment: Support structures for precision casting that require high surface finish and minimal interaction with the melt.
- R&D Laboratories: Versatile high-temperature crucibles and trays for advanced material research, capable of withstanding temperatures up to 2500°C (depending on the atmospheric conditions).
Operational Benefits: Reducing Total Cost of Ownership
- Enhanced Process Yield: Precision-machined surfaces and uniform heat distribution lead to fewer defective parts and higher consistency.
- Increased Service Life: The wear-resistant nature of our high-purity graphite reduces the frequency of replacements, lowering long-term maintenance costs.
- Optimized Production Cycles: High thermal efficiency allows for faster ramp-up and cool-down times, boosting overall throughput.
Technical Specifications
| Physical Property | Typical Range |
| Bulk Density | $1.75 – 1.90\text{ g/cm}^3$ |
| Flexural Strength | $45 – 75\text{ MPa}$ |
| Thermal Conductivity | $110 – 160\text{ W/(m}\cdot\text{K)}$ |
| Ash Content | $\le 20 – 50\text{ ppm}$ (High Purity Grade) |
| Machining Tolerance | $\pm 0.01\text{mm}$ to $\pm 0.05\text{mm}$ (Specification dependent) |
| Max Operating Temp | Up to $2500^\circ\text{C}$ (In inert/vacuum environments) |
Technical Note:
To maximize the operational lifespan of your graphite components, we recommend implementing proper oxidation protection when operating in non-vacuum environments and following standard thermal ramp-up protocols.
