|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Electrode Technology Symposium for Aluminum Production
||Numerical Investigation of the Thermomechanical Behaviour of Anode Butt
||Simon-Olivier Tremblay, Daniel Marceau, Patrick Coulombe, Jules Côté, Duygu Kocaefe
|On-Site Speaker (Planned)
In the Hall Héroult process, the prebaked anode is consumed until a critical thickness of carbon is used. Then the anode assembly including the covering material is removed from the pot to be recycled for further use. To do so, the cleaning process should have the ability to efficiently and properly separate the materials. However, it has been observed that carbon breaking during the covering material separation step leads to significant problems and makes the production process less efficient. In this paper, the thermomechanical behavior of the anode butt is investigated to identify the origin of carbon cracking. The ANSYS model is calibrated using in situ measurements and provides the evolution of the stress distribution in the anode butt during service life and cooling phases. The results suggest that carbon cracking mainly occurs during cooling phase and is especially sensitive to the thickness of the anode butt and cover material.
||Planned: Light Metals