Rolling mill and rolling method
AssigneeHitachi, Ltd.
InventorsKenichi Yasuda, Yukio Hirama, Yoshio Takakura
Life of this patent
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Abstract
To provide a rolling mill in which work rolls being supported horizontally by static pressure bearings wherein, even under the action of an excessive horizontal force, preventing contact between the work rolls and the static pressure bearings to ensure the production of a strip product free of flaw and superior in its surface quality. Work rolls are supported by static pressure bearings through idler rolls. The amount of offset of the work rolls are changed respectively by moving devices through static pressure bearings. Further, pushing cylinders generate a certain force through the static pressure bearings to bear the force provided from the moving devices.
Claims28
A rolling mill having at least a pair of work rolls for rolling a strip, at least a pair of support rolls for supporting the work rolls vertically, static pressure bearings for supporting said work rolls horizontally over a range not smaller than the maximum width of said strip, said static pressure bearings being disposed on both an incoming side and an outgoing side of the work rolls, and a moving apparatus for moving said work rolls horizontally is attached to said static pressure bearings located on at least one of the incoming side and outgoing side of the work rolls to maintain a horizontal force acting on the work rolls within a predetermined value.
Dependencies are inferred from the claim text.