HP graphite electrodes are also used for aluminum smelting in the aluminum industry. In the Hall-Héroult process, alumina is dissolved in a molten cryolite bath at high temperatures and then electrolyzed using graphite electrodes. The carbon anodes gradually burn away during the process and need to be replaced regularly with new ones. HP graphite electrodes are ideal for this application because they have excellent thermal conductivity, high resistance to thermal shock, and low consumption rates, which help to increase the efficiency and productivity of the aluminum smelting process.

Pre-baked anode cells: In pre-baked anode cells, HP graphite electrodes are used to conduct electric current to the carbon anodes, which are consumed during the electrolytic production of aluminum.

Soderberg cells: In Soderberg cells, HP graphite electrodes are used to form the carbon anodes in situ by the gradual addition of coke and pitch. The electrodes are also used to conduct electric current to the anodes.

Specialty furnaces: HP graphite electrodes are used in other types of specialty furnaces, such as resistance furnaces and induction furnaces, for various aluminum-related processes.

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