Method of rolling finished sections from a preliminary section

Details Method of rolling finished sections from a preliminary section Method of rolling finished sections from a preliminary section

1997-07-10

1999-05-18

Hail, III, Joseph J.

Metal deforming

By use of roller or roller-like tool-element

Plural roller-couples

72225, 72238, B21B41/06;13/10;31/07

Patent

active

059040610

ABSTRACT:
A method of rolling finished sections from a preliminary section by initially carrying out five or more passes and reversing passes between a universal stand and a horizontal stand, wherein profiled horizontal rolls of the universal stand form in the section two indentations located opposite of each other and offset relative to a longitudinal center of the section. Subsequently, head and flange projections of an emerging rail section are preshaped and the indentations are laterally reduced by one of alternative grooves of a horizontal stand of a preliminary rolling group. The emerging rail section is rolled in a reversing operation after three or more passes in the universal stand and in two alternative grooves of an intermediate upsetting stand. The section is finish-rolled into a rail section in an additional pass through the universal stand.

REFERENCES:
patent: 4791799 (1988-12-01), Engel et al.
patent: 5664452 (1997-09-01), Engel et al.

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