圧延板の形状とロールの形状との関連

概要

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The aim of present work is to investigate basically and experimentally the rolling condition under which the strip of flat shape can be obtained with a multi-high rolling mill having the working roll of smalles diameter. By using the rolls with various profile, the roll indentations were impressed on the strip surface by means of static screw-down without roll revolution under the various forces. Then, the transverse distribution of roll indentation width, namely, the variation on width of roll indentation in the direction of strip width was measured, and a consideration was made on the correlation between these and the flatness of strip rolled under the same condition as static screwdown. It was shown that the transverse distribution of roll indentation width was equivalent qualitatively to the flatness of rolled strip. The more appropriate profile of working roll crown for rolling the strip of flat shape with present mill was accorded closely with the cornered or rounded curvature rather than parabolic one which may be suitable for two-high mill. The relation between flatness of strip and the shape of 1st-intermediate backing roll, and the trend of working roll deflection under static screw-down were also shown.
社団法人日本鉄鋼協会の論文
1972-05-01