Rolling mill and method for operating same

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

B - Operations, Transporting

21

B

B21B 37/58 (2006.01) B21B 1/00 (2006.01) B21B 31/02 (2006.01) B21B 37/00 (2006.01) B21B 13/02 (2006.01) B21B 31/32 (2006.01)

Patent

CA 2392114

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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