| 摘要 |
PURPOSE:To considerably decrease waving camber of a titanium material, etc., during hot rolling by rolling the titanium or titanium alloy material while the material is held inclined at a required angle with the line of the rolling direction, then inclining the material in the direction opposite from the above- mentioned direction in the next pass, rolling the same and alternately repeating such rollings. CONSTITUTION:The above-mentioned titanium material 1 is rolled while the center line in the longitudinal direction of the material 1 is inclined an angle theta1 with the rolling direction X-X line and is passed between rolling rolls 2 at the time of hot rolling the material 1. About 15 deg. is preferable for the above- mentioned angle theta1. In practice, the material is inclined to the width at which the engagement of the rolls 2 is possible. The material is inclined at an angle theta2 in the direction opposite from the above-mentioned theta1 relative to the rolling direction X-X line and is rolled. The above-mentioned theta1 and theta2 may not always be the same. The waving camber during the hot rolling is considerably decreased and the rolling reduction per pass is largely taken by executing the rolling while repeating the above-mentioned method, by which the rolling efficiency is improved. |
