Effectiveness of a New Automated Control System for Vacuum-Arc Remelting

摘要

At OAO Metallurgicheskii Zavod Elektrostal, a new automated control system for vacuum-arc remelting has been introduced at vacuum-arc furnace 8. The quality of the ingots obtained after vacuum-arc remelting with the new and old control systems in smelting shop 6 is compared, for EI435 alloy. In vacuum-arc remelting, the quality of ingots from furnace 8 exceeds that for ingots from furnace 10. After treatment of the ingots in a 6300 press in forging and pressing shop 2 and in the 250/350 mill in rolling shop 3, metal savings of up to 83 kg per metric ton are noted for the products based on ingots from furnace 8.