Method of rolling rails

Details Method of rolling rails Method of rolling rails

1983-06-27

1985-03-12

Gilden, Leon

Metal deforming

By use of roller or roller-like tool-element

Included in roller-cluster

72234, 72366, B21B 108

Patent

active

045037000

ABSTRACT:
A rail is rolled from a hot-rolled bloom having a square or rectangular cross section by a method which is constituted by the steps of breakdown rolling, universal rolling, which is effected by causing the bloom to travel through a plurality of stands making only a single pass on each stand, base-wheel rolling, head-wheel rolling and edging. The bloom is broken down into substantially H-shaped beam blank whose cross section is symmetrical with respect to the center line of its web. In the base-wheel rolling, the flanges of the blank corresponding to the head and base of the rail are respectively rolled widthwise and thicknesswise in three or more passes using a pair of horizontal rolls and a vertical roll, respectively.

REFERENCES:
patent: 3597954 (1971-08-01), Nakajima et al.
patent: 3657912 (1972-04-01), Ishibashi et al.
patent: 4301670 (1981-11-01), Engel et al.
patent: 4370877 (1983-02-01), Michaux
patent: 4393680 (1983-07-01), Kovacs
patent: 4400962 (1983-08-01), Michaux
patent: 4408475 (1983-10-01), Mennel

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