Rolling method, production method for metal sheet, and rolling device
AssigneeJfe Steel Corporation
InventorsNoriki Fujita, Yukihiro Matsubara, Yu Nagai, Yoshimitsu Harada
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Abstract
A rolling oil supply system is configured to supply rolling oil to a rolling stand selected from a plurality of rolling stands included in a tandem rolling mill, a first rolling oil supply system configured to circulate and supply rolling oil after removing wear powder generated by rolling, and a second rolling oil supply system configured to supply rolling oil containing the wear powder generated by rolling are provided. Mixed rolling oil in which the rolling oil supplied from the first rolling oil supply system and the rolling oil supplied from the second rolling oil supply system are mixed is supplied to selected fourth and fifth rolling stands.
Claims18
A rolling method that rolls a rolled material by a tandem rolling mill including a plurality of rolling stands, the method comprising:
- supplying by mixing rolling oil supplied from a first rolling oil supply system and a second rolling oil supply system to one or two or more rolling stands selected from the plurality of rolling stands, and
- performing a removal treatment of the wear powder on rolling oil in a first storage tank and supplying rolling oil in the first storage tank to a second storage tank,
- wherein the first storage tank stores rolling oil collected from the plurality of rolling stands,
- the second storage tank stores rolling oil after performing the removal treatment of the wear powder generated by rolling,
- the first rolling oil supply system circulates and supplies rolling oil subjected to a removal treatment of wear powder generated by the rolling and stored in the second storage tank, and
- the second rolling oil supply system supplies rolling oil containing the wear powder generated by the rolling and stored in the first storage tank.
A rolling device comprising:
- a tandem rolling mill including a plurality of rolling stands;
- a first rolling oil supply system configured to circulate and supply rolling oil after a removal treatment of wear powder generated by rolling;
- a second rolling oil supply system configured to supply rolling oil containing the wear powder generated by rolling;
- a mixing unit configured to mix the rolling oil supplied from the first rolling oil supply system and the rolling oil supplied from the second rolling oil supply system to obtain mixed rolling oil,
- a first storage tank to store rolling oil collected from the plurality of rolling stands,
- a second storage tank to store rolling oil after performing the removal treatment of the wear powder generated by rolling, and
- a wear powder removing device to perform a removal treatment of the wear powder on rolling oil in a first storage tank and to supply rolling oil in the first storage tank to a second storage tank,
- wherein the first rolling oil supply system includes a first rolling oil pipeline configured to supply the rolling oil in the second storage tank to the mixing unit,
- the second rolling oil supply system includes a second rolling oil pipeline configured to supply the rolling oil in the first storage tank to the mixing unit, and
- the mixed rolling oil is supplied to a rolling stand selected from the plurality of rolling stands.
Dependencies are inferred from the claim text.