| 摘要 |
PROBLEM TO BE SOLVED: To attain fine surface properties without generating shape defects on a titanium sheet and to roll the titanium sheet efficiently.SOLUTION: A method of rolling a titanium sheet using a multi roll mill 1 is composed of a prestage pass and a poststage pass. In the prestage pass and the poststage pass, rolling conditions are set so that a friction coefficient may be the one which does not generate a herringbone (cross buckle) where the coefficient of friction of the poststage pass is lower than the coefficient of friction of the prestage pass in regard to the coefficient of friction between work rolls 4 provided on the multi roll mill 1 and a titanium sheet. Further, the draft of the poststage pass is set lower than the draft of the prestage. |
