Methods of rolling wire rods or bars
AssigneeFriedrich Kocks GmbH & Company
InventorsHans Brauer, Werner Demny
Life of this patent
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Abstract
In the reduction of the cross section of wire, rods or bars by rolling, the work material is placed under longitudinal compression in a roughing block and/or in an intermediate block and is only under tension in a finishing block. By this means, the ends of the work material are thinned prior to entry into the finishing block, instead of being thickened as they would be if the work material were under tension in the roughing and/or finishing block. Compensation for this end thinning is effected in the finishing block due to the rolling under tension, so that wastage due to cropped thickened ends is avoided.
Claims5
A method of rolling wire, rods or bars in which the cross section of such work material is reduced by first rolling under longitudinal compression in at least one of a roughing and intermediate rolling mill block having at least two spaced roll stands continuously operating at different speeds such that the work is continuously longitudinally compressed during the time it is engaged in said roll stands and thereafter rolling the work material in a finishing rolling mill block, the work material being rolled under longitudinal tension only in the finishing block.
Dependencies are inferred from the claim text.