Rolling mill and method for operating same

Details Rolling mill and method for operating same Rolling mill and method for operating same

2005-11-01

2005-11-01

Larson, Lowell A. (Department: 3725)

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

C072S011500, C072S012500

Reexamination Certificate

active

06959571

ABSTRACT:
Hydraulic cylinders are provided in a housing so as to be opposed to work rolls and backup rolls. Before a front end portion of a rollable material is engaged between the work rolls, the working oil pressure of the hydraulic cylinders is set at a high pressure value to make a pressing force on roll chocks high. After the rollable material is completely engaged between the work rolls, the working oil pressure of the hydraulic cylinders is set at a low pressure value to make the pressing force on the roll chocks low.

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patent: 2001-113308 (2001-04-01), None
patent: WO 99/33587 (1999-07-01), None

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