PRODUCTION OF ORIENTATED SOLIDIFIED CAST INGOT BY ELECTRO SLAG REMELTING

摘要

PURPOSE:To improve mechanical and physical properties in the specific direction of a cast ingot by relatively giving eccentrical rotation to a consumable elec trode and the solidified cast ingot. CONSTITUTION:A water cooled mold 2 is put on the water cooled surface table 1 and the consumable electrode 3 is inserted into the inner part of the mold in eccentrical state and also the surface table 1 is made rotatable through a collecting brush 4, gear 5 and a motor 6. An electro slag remelting is started and the electrode 3 is dipped into the slag pool 8 and the end part thereof is melted to form the molten steel pool 12. Then, as the water cooled mold 2 is eccentrically rotated to the electrode 3, the dropping position of drip 11 is always changed, and the drip is horizontally and averagely dropped. There fore, the temp. of molten steel pool 12 in the horizontal direction is uniformized and the shape at solidified boundary is flattened. As the orientated solidification of the casting ingot is improved, the mechanical and physical properties in the specific direction of the casting ingot is improved.