PRODUCTION OF METALLIC ARTICLE

摘要

PURPOSE:To permit the formation of the finer grains and the control of a splashing direction and to decrease segregation and oxygen content by dropping a molten metal onto a rotary disk which has a collision surface of a smooth surface and a specified height upward on the outside periphery thereof in the position deviated from the center of the disk. CONSTITUTION:The inside of a chamber 1 is evacuated to a vacuum and is replaced with gaseous Ar. An alloy is heated in an electric furnace 2 and is poured into a tundish 3. The molten metal 5 is dropped from an aperture 4 provided in the bottom of the tundish 3 to the position S deviated from the center of rotation of the rotary disk 6. The molten metal 5 is made into the fine particles 8 by the rotary disk 6 and a side wall 7 thereof. THe fine particles 8 deposit and solidify on a moving base body 9 before said particles are not solidified yet. A shape material stock 10 is thus obtd. The wall on the outside periphery of the rotary disk is preferably inclined at 90-135 deg. with the disk plane.