| 摘要 |
PURPOSE:To produce a hot rolled titanium sheet having a good surface characteristic by stripping surface hardened layers by rolling of any among one side driven rolling, rolling with different diameter rolls and rolling at different circumferential speeds or the combination thereof. CONSTITUTION:One side driving of rolling work rolls is executed with a stand of >=1 units of roughing mills and finishing mills in a rolling stage. A pair of different diameter rolls which are different in diameter between the upper and lower rolls are incorporated into F4, F5 stands of the finishing mill. Rolling is also executed by giving a difference between the upper and lower circumferential speeds of the rolling work rolls. The surface hardened layers are stripped by any among the above-mentioned rollings or the combination thereof, by which the titanium sheet having the good surface characteristic is rolled to a desired thickness. |
