What are the physicochemical properties of graphite electrodes?

Graphite electrodes are conductive components made of high-purity graphite material, possessing the following significant physicochemical properties:

1. High electrical and thermal conductivity

Graphite's electrical and thermal conductivity is comparable to that of metals, enabling efficient transmission of current and heat, meeting the requirements for efficient energy utilization in high-temperature smelting equipment.

2. High-temperature stability

Graphite has a melting point of up to 3650°C and maintains stable physical and chemical properties under high temperatures, resisting melting or deformation.

3. Corrosion resistance

Graphite exhibits good corrosion resistance to most acids, alkalis, and salt solutions, adapting to complex smelting environments.

4. Low thermal expansion coefficient

Graphite has a low thermal expansion coefficient, reducing the risk of thermal stress cracking under high temperatures and extending its service life.

5. Moderate mechanical strength

Graphite electrodes have a certain level of mechanical strength, capable of withstanding mechanical impact and vibration during the smelting process.