| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Reduction Technology
|
| Presentation Title |
Determination of the Air-gap Distribution at the Cast Iron to Carbon Cathode Interface Using a 3D Scanning Approach |
| Author(s) |
Omolbanin Saeidi, Simon-Olivier Tremblay, Daniel Marceau, Antoine Godefroy, Sébastien Charest |
| On-Site Speaker (Planned) |
Simon-Olivier Tremblay |
| Abstract Scope |
The electrical resistance of the cathode assembly contributes to 8 % of the 4.2 V operating voltage of a 400 kA reduction cell and electrical contact resistance (ECR) at the cast iron-carbon cathode interface causes most of this resistance. Since ECR depends on temperature and contact pressure at the interface, it indirectly depends on initial air-gap distribution and its evolution during the operation. Accurate determination of this important parameter remains a challenge today. In this paper, a 3D scanning approach is proposed to measure the initial air-gap distribution at the cast iron-carbon cathode interface of an industrial cathode assembly. Coupled with advanced software for accurate geometrical data processing, this well-established approach offers promise for interface analysis in various applications. The results obtained reveal a highly asymmetric air-gap distribution on both the top and side contact surfaces of the cast iron-carbon cathode interface. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Other |