Evaluación de un concentrado de vanadio, obtenido de catalizadores agotados, como carga de aleación de electrodos tubulares.

The present study analyzes the assessment of vanadium concentrate as an alloy charge for coated tubular electrodes intended for recharging parts. The concentrate was obtained from the chemical processing of flat catalysts from sulfuric acid production, mixed with charcoal. The 3.5 mm diameter electrode was made with a 10 x 1 mm AISI 1010 steel strip and coating with 70% calcite, 10% fluorite and 20% graphite, which guaranteed good technological performance. Weld beads with 0.19% C were obtained; 0.19% of V; 1.94% Cr and 0.1% Mo, with the presence of fine-grained ferrite in the columnar and acicular zone in the center of the bead and 208 and 187 Hv hardnesses respectively. [ABSTRACT FROM AUTHOR]