Metallic coolant for a metallurgical bath, method of manufacture
AssigneeHeckett Holland B.V.
InventorJan A. Groopthoff
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Abstract
A metallic coolant for a metallurgical bath, the composition of the coolant substantially corresponding to that of the bath consists of ball-shaped bodies of sizes not less than 5 mm and not more than 60 mm, preferably 12 to 60 mm, the ball-shape factor B of the coolant having a value of at least 0.57. The ball shape factor (herein defined) relates the shape to that of spherical balls. The coolant can be made, using a hammer mill, from scrap.
Claims6
Method of manufacture of a metallic coolant of ball-shaped bodies made of steel, comprising processing material in the form of strip or bar shaped steel scrap in a hammer mill having movable hammers, which has an anvil grid with square holes of side length in the range 30 to 70 mm, the mill being kept filled during the hammering to a level which is at least 85% of the mill volume, collecting the processed scrap passing through said square holes of said hammer mill and reinserting said collected processed scrap into said hammer mill at least one more time for processing.
Dependencies are inferred from the claim text.