ストレッチレデューサ内で管の圧延時に厚肉端を最少にするための方法

Title:

ストレッチレデューサ内で管の圧延時に厚肉端を最少にするための方法

Document Type and Number:

Japanese Patent JP3794923

Kind Code:

B2

Abstract:

The invention relates to a method for minimizing thickened ends during the rolling of tubes in a stretch-reducing mill by means of a change in time of the torque of individual driven roll stands when the tube front end and the tube rear end run through the stretch-reducing mill, so that the tube ends are rolled with higher roll speeds than the steady-state speeds. At the same time, lower roll speeds than the steady-state roll speeds are set between the steady-state and the increased roll speeds.

Inventors:

Pere, Hans Joachim

Application Number:

JP2000567324A

Publication Date:

July 12, 2006

Filing Date:

May 11, 1999

Export Citation:

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