Low-cost Non-vacuum Induction Furnace Smelting of High Molybdenum Content of Nickel-base Alloy
Based on the nickel-base alloy production platform of Fushun Special Steel Co.,LTD.,this paper studies the feasibility of "30 t non-vacuum induction furnace-external furnace refining-electroslag remelting"process instead of the tra-ditional high cost process to smelt nickel-base alloys with high molybdenum content,and analyzes the production effi-ciency and cost advantages combined with the production practice.The results show that by degassassing smelting process scheme with 30 t non-vacuum induction furnace was used to melt molten steel,VOD blowing oxygen and decarbonized af-ter vacuum to below 67 Pa,and the smelting of nickel-base alloy N06625 and N10276 products with high molybdenum con-tent was successfully realized.The steel ingot produced after electroslag is 204 mm forging products,the chemical composi-tion and non-metallic inclusions meet the industry standard requirements,and further improve the production guarantee and cost control ability of high molybdenum nickel-base alloy.