Why Do Graphite Electrodes Require Special Storage Conditions?

Why do graphite electrodes require special storage conditions?

1. Preventing Moisture Absorption

The porous structure of graphite electrodes allows them to easily absorb moisture from the air. Moisture absorption can reduce the conductivity and thermal conductivity of the electrode, and may also cause internal stress, leading to cracking or deformation. Furthermore, a humid environment can accelerate the oxidation process of graphite electrodes.

2. Preventing Contamination

The surface of graphite electrodes is easily contaminated by dust, oil, or other chemicals. These contaminants may react with the graphite under high temperature or high current conditions, affecting the performance and lifespan of the electrode.

3. Preventing Mechanical Damage

The brittleness of graphite electrodes makes them susceptible to damage from external forces during handling or storage. Therefore, appropriate protective measures are needed to prevent the electrodes from being bumped or crushed.

4. Temperature Control

High temperatures can accelerate the oxidation of graphite electrodes, while low temperatures can increase internal stress, leading to cracking. Therefore, the storage temperature must be controlled within an appropriate range.

5. Preventing Oxidation

Graphite electrodes are prone to oxidation at high temperatures or when exposed to oxygen, resulting in surface degradation and performance loss. Therefore, the storage environment should minimize contact with air.