Tandem rolling mill facility and rolling method using the same
AssigneeHitachi, Ltd.
InventorsToru Nakayama, Michimasa Takagi
Life of this patent
Estimating the term…
Abstract
In a tandem rolling mill facility and a rolling method using the tandem rolling mill facility, stable rolling is performed with suppressing deflection of working rolls and without fluctuation of working roll bearing boxes. Axes of working rolls 1 are offset toward a side opposite to a side of larger tension between tensions acting on a rolled material 10 at an inlet side and an outlet side with respect to axes of intermediate rolls 2, and a hydraulic cylinder 11 for pushing a working roll bearing box 4 toward the same side as the offset direction is contained in a block 8.
Claims11
A tandem rolling mill facility comprising a rolling mill line aligning a plurality of rolling mills in a pass direction of a rolled material, said rolling mill having a top and a bottom working rolls and a top and a bottom supporting rolls arranged on and under said working rolls, wherein
- at least one rolling mill among said plurality of rolling mills is a working roll offset rolling mill in which said top and said bottom working rolls are used as driving rolls, and axes of said top and said bottom working rolls are arranged so as to be offset to a side opposite to a side of larger tension acting on the rolled material with respect to axes of said top and said bottom supporting rolls.
A tandem rolling mill facility comprising a rolling mill line aligning a plurality of rolling mills in a pass direction of a rolled material, said rolling mill having a top and a bottom working rolls and a top and a bottom supporting rolls arranged on and under said working rolls, wherein
- at least one rolling mill placed in the final stand among said plurality of rolling mills is a rolling mill in which said top and said bottom working rolls are used as driving rolls, and axes of said top and said bottom working rolls are arranged so as to be offset to an outlet side of the rolled material with respect to axes of said top and said bottom of supporting rolls, and the other rolling mills are rolling mills in which said top and said bottom working rolls are used as driving rolls, and axes of said top and said bottom working rolls are arranged so as to be offset to an inlet side of the rolled material with respect to axes of said top and said bottom supporting rolls.
A tandem rolling mill facility comprising a plurality of rolling mills each having a pair of a top and a bottom working rolls, and a pair of supporting rolls, wherein
- an offset means for offsetting said working rolls toward an outlet side of a rolled material with respect to said supporting rolls is provided at least the rolling mill in a final stand.
A tandem rolling mill facility comprising a plurality of rolling mills each having a pair of a top and a bottom working rolls, and a pair of supporting rolls, wherein
- an offset means for offsetting said working rolls toward an outlet side of a rolled material with respect to said supporting rolls is provided at least the rolling mill in a final stand, and an offset direction by said offset means is a direction opposite to a side of larger tension acting on the rolled material.
A rolling method using a tandem rolling mill facility which comprises a plurality of rolling mills each having a pair of a top and a bottom working rolls, and a pair of supporting rolls, wherein
- an offset means for offsetting said working rolls toward an outlet side of a rolled material with respect to said supporting rolls is provided at least the rolling mill in a final stand, and rolling is performed while said working rolls are being offsetting to a direction opposite to a side of larger tension acting on the rolled material by said offset means.
Dependencies are inferred from the claim text.