Method of rolling H-beams

Details Method of rolling H-beams Method of rolling H-beams

1991-11-04

1993-04-20

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

Included in roller-cluster

723662, B21B 108

Patent

active

052031934

ABSTRACT:
A method of producing H-beams is carried out by rolling a rough rolled steel billet having a web and flanges by a universal finishing mill having a pair of vertical rolls embracing the flanges of the billet on both sides and a pair of horizontal rolls having widths less than those in the rough rolling and embracing the web on upper and lower sides to reduce the web width and thicknesses of the flanges of the billet and to correct inclination of the flanges, thereby reducing and adjusting an inner web width of the H-beam. The billet is finish-rolled in a state such that the axes of the pair of vertical rolls are shifted onto the downstream side of the axes of the pair of horizontal rolls into an area including a zone where the web width and the thicknesses of the flanges are simultaneously reduced. In another aspect, the billet is rolled by the universal finishing mill whose pair of vertical rolls are positively driven.

REFERENCES:
patent: 4958509 (1990-09-01), Kusaba et al.
patent: 5085065 (1992-02-01), Onderka et al.

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