Calender and process for arranging rolls in a roll

专利名称：Calender and process for arranging rolls in a

roll stack of a calender

发明人：Rolf Van Haag申请号：US10192530申请日：20020711

公开号：US20030025230A1公开日：20030206

摘要：Calender with a roll stack and process for arranging rolls in a roll stack of acalender, the calender comprising two end rolls in a press plane and a plurality of middlerolls between the two end rolls. At least one of the middle rolls has an elastic surfaceand has a displacement (x) relative to the press plane, the size of the displacement (x)being selected based on a wavelength of a critical natural frequency within the roll stack.The end rolls and the at least one middle roll define two nips therebetween, thedisplacement (x) effecting a difference in distance of a fraction of a wavelength on asurface of the at least one middle roll between the two nips. An adjusting device adjuststhe displacement of the at least one middle roll on the basis of a preset displacement (x),which depends on the wavelength.

申请人：VOITH PAPER PATENT GMBH

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