System to control the surface profile of the back-up rolls in fo

Details System to control the surface profile of the back-up rolls in fo System to control the surface profile of the back-up rolls in fo

1998-06-19

1999-08-10

Hail, III, Joseph J.

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

722525, 72 92, 72 118, 310 26, B21B 2900

Patent

active

059341297

ABSTRACT:
System to control the surface profile of the back-up rolls in four-high rolling stands (11) to produce flat products (14), the four-high rolling stand (11) comprising working rolls (12) and back-up rolls, wherein each back-up roll (13) comprises deforming elements (18) consisting of means made of magnetostrictive material (19, 119) on which coils (20, 120) are directly wound and connected with autonomous means of electric supply to generate a magnetic field, the system comprising a control and regulation unit (24), connected with at least means (25) to control the planarity and/or thickness of the rolled product (14) leaving the rolling stand (11), for the controlled activation and feed of each of the coils generating the magnetic field (20, 120). Back-up roll for four-high rolling stands comprising means made of magnetostrictive material to achieve the control system as described above.

REFERENCES:
patent: 3406302 (1968-10-01), Lanyi et al.
patent: 4017754 (1977-04-01), Jarett et al.
patent: 4612788 (1986-09-01), Kitagawa
patent: 4882922 (1989-11-01), Dominique
patent: 4938045 (1990-07-01), Rosenstock et al.
patent: 5703553 (1997-12-01), Bushko et al.
"Strip Profile Control with Flexible Edge Backup Rolls" Iron & Steel Engineer, vol. 64, No. 7, pp. 23-34, 1987.

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