A STUDY ON THE POSSIBLE USAGE OF CONTINUOUSLY CAST ALUMINIUM 99.6% CONTAINING HIGH Ti, V, AND Cr IMPURITIES AS FEEDSTOCK FOR THE MANUFACTURING OF ELECTRICAL CONDUCTORS

ABSTRACT

The aim of this work is to improve conductivity of the feedstock produced from the 99.6% Al T-ingot, which is not used directly in production of aluminium conductor due to containing high transition elements Ti, V, and Cr. The experiments were made under real working conditions in CCL of the aluminium factory by using 5% AlB₁₂ waffles, and 4% AlB₁₂ and 3% AlB₂ master compounds in rod form. After rolling of the continuo bar, microstructure analyses of samples taken from 9.5-mm feedstock have been examined using optical metallography, scanning electron microscopy (SEM), and energy dispersive X ray (EDX) analysis.

Key Words:

• AlB₂
• AlB₁₂
• Aluminium conductor
• Continuous casting line
• Electrical conductivity
• Electrical resistance
• Feedstock
• Fine diborides
• Holding furnace
• Impurity
• Inoculation in tundish
• Master alloy
• Waffle
• Wire drawing
• Wire stranding

Notes

^aMeasurements are under the lower limit of conductivity.