JPS5630010A - Rolling and straightening method for strip - Google Patents

Abstract

PURPOSE: To contrive the simultaneous achievement of the rolling and straightening works, and to efficiently manufacture the rolled sheet with a small camber, by successively enlarging the roll diameter along the strip's traveling direction, and by making the strip to travel with 3 degrees or larger feed-in angle, at rolling the strip being passed through the large and small work rolls.

CONSTITUTION: At rolling the strip S being passed through plural work rolls consisting of large and small work rolls 5, 6, 5', 6',..., these rolls are arranged in tandem so as to make the diameter of above stated pair of large and small work rolls to be successively larger along the traveling direction of the strip S; the strip S is given the 3 degrees or larger feed-in angle by the roll 9 and is passed through these plural pairs of large and small work rolls in the zigzag form; hereby, the strip S is simultaneously subjected to the rolling and straightening works. According to this constitution, the rolling reduction can be made large, and besides, the efficient rolling work to obtain the good flatness becomes possible. This method is suitable for rolling the very thin sheet and the hardly workable material.

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