In industries such as metallurgy, semiconductors, and precision mold manufacturing, thermal resistance and electrical stability are critical to production efficiency and yield. To address these demands, our updated series of high-purity isostatic and high-strength graphite rods is engineered to deliver reliable refractory and conductive performance in challenging thermal environments.
Key Performance Characteristics
Every grade in this series undergoes rigorous physical and chemical testing to ensure consistent properties:
- Thermal Shock Resistance: Designed for inert atmospheres, these rods withstand sharp temperature fluctuations. A low coefficient of thermal expansion (CTE) reduces the risk of structural cracking under thermal stress.
- Isostatic Structure: Manufactured via isostatic pressing, the material features a uniform grain structure. This minimizes directional variations in electrical and thermal conductivity while maintaining balanced mechanical strength.
- Controlled Purity: High-temperature purification effectively controls ash and impurity levels, reducing the risk of contamination to melt materials or semiconductor substrates.
- Chemical Inertness: The rods exhibit high resistance to most acid and alkali solutions, ensuring a stable service life in chemically corrosive environments.
- Precision Machining Adaptability: The uniform density allows for precise machining according to technical drawings, accommodating configurations such as threaded rods, perforated rods, and complex custom geometries.
Typical Applications
With balanced physical properties, these graphite rods are suitable for a wide range of industrial applications:
| Industry | Specific Application | Core Value Delivery |
| Semiconductor & PV | CZ furnace heaters, graphite electrodes | Controls impurity volatilization; helps maintain crystal purity |
| Metallurgy & Casting | Non-ferrous metal smelting, continuous casting molds | Resists molten copper/aluminum erosion; facilitates standard demolding |
| EDM Machining | EDM electrodes, mold manufacturing | Delivers stable wear ratios and consistent surface roughness |
| Industrial Furnaces | Conductive rods, heating elements for vacuum furnaces | Maintains minimal electrical resistivity fluctuations under long-term high temperatures |
Technical Specifications (Typical Values)
Technical Note: The data provided below represents typical measured values under specific processing specifications and should not be treated as absolute guarantees. Formulations and processing parameters can be adjusted based on operational conditions (e.g., temperature, atmosphere, and pressure).
- Bulk Density: $\ge 1.82 – 1.88 \text{ g/cm}^3$
- Specific Resistance: $\le 8.5 – 10.5 \mu\Omega\cdot\text{m}$
- Flexural Strength: $\ge 35 – 45 \text{ MPa}$
- Compressive Strength: $\ge 70 – 85 \text{ MPa}$
- Ash Content: $\le 50 – 300 \text{ ppm}$ (Customizable based on purity requirements)
Quality Assurance & Technical Support
- Process-Stage Quality Control: From raw material selection, kneading, baking, and impregnation to graphitization and final precision machining, each major production stage is equipped with dedicated testing instruments to verify compliance with technical standards.
- Material Selection Support: Our technical support team is available to analyze your equipment parameters, operating temperatures, and atmospheric environments to help select the most compatible graphite grade for your specific application.
- Post-Delivery Technical Assistance: We provide comprehensive usage guidelines and technical consultation to help diagnose and resolve any premature wear resulting from operational or environmental variations.
