from the conferences organized by TANGER Ltd.
The practice of using electroslag remelting for processing spent non-compact tools from high-speed grade steel is considered. The advantage of the remelting process according to the two-circuit scheme for that purpose is demonstrated. The electroslag remelting process according to that scheme with a T-type mold has been developed and investigated at experimental melts. Spent drills and cutters welded into solid electrodes were remelted with obtaining a high-quality ingot and preserving the chemical composition. The outer diameter of the electrodes was up to 200 mm with the forming part of the mold 180 mm. It was found that the use of a T-type current-supply mold allows remelting with reduced power on up to 25 % and obtaining a high-quality ingot without surface defects at the same time. The dependence of the remelting rate on the filling coefficient as well as the possibility of conducting remelting exclusively on the current-supply section of the mold without loss of productivity has been established.
Keywords: Electroslag remelting, double-circuit scheme, recycling, tool, high-speed steel, ingot, remelting productivity, ingot quality© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.