Abstract
Removing transition metal impurities is vital in producing high-conductivity aluminum for wire and cable applications. These impurities, primarily titanium (Ti) and vanadium (V), can significantly reduce electrical conductivity. To address this challenge, laboratory-scale experiments were performed, focusing on the performance of aluminum-boron master alloys, specifically Al-3% B (AlB2 phase) and Al-8% B (AlB12 phase), in eliminating Ti and V from electrolysis metal ingots. In the present study, three critical parameters were addressed, i.e., holding time, stirring, and fluxing. All three parameters yielded positive outcomes, enhancing the electrical conductivity of the cast material. Cast house trials were conducted using Al-5% B (AlB2 phase) and Al-8% B (AlB12 phase). Furthermore, the melt quality was assessed through the Porous Disc Filtration Apparatus (PoDFA) method. These trials were conducted in the aluminum wire rod cast house, where the 1370 alloy wire rod production occurs. The results obtained from the cast house trials provided valuable insights. Specifically, using the Al-5% boron master alloy with the AlB2 phase demonstrated its capability to yield a cleaner melt, as evidenced by a reduced total inclusion count.
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Akhtar, S., Hassanabadi, M., Aune, R.E. (2024). Optimization of Boron Treatment for Production of 1370 Electrically Conductive Grade Aluminum Alloy. In: Wagstaff, S. (eds) Light Metals 2024. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50308-5_118
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