Method in a multiroll calender, a multiroll calender and a method for loading a calender roll of a multiroll calender and a multiroll calender
A technology of calender and calender rollers, applied in the field of multi-roll calender, multi-roll calender for calendering fiber web, and calender, which can solve the problem that the number of nips is not completely replaceable, and achieve friction Small, improved precision, friction-reducing effect
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[0064] In the following figures 1 to Figure 22 In , unless otherwise stated, the same reference numerals are used to denote components and structures that substantially correspond to each other.
[0065] Figures 1 to 7 schematically show a part of an embodiment of the method according to the invention for realizing various types of runs carried out in a multi-roll calender with two sets of rolls. The multi-roll calender 150 shown in Figures 1 to 7 comprises two sets of rolls 20A and 20B, the fiber web W being calendered in the nip between the calender rolls of said set of rolls. Reference numerals 21B-26B from the upper end refer to rolls of the roll set 20B, and reference numerals 21A-25A refer to rolls of the roll set 20A. In the embodiment shown in these figures, rolls 21A, 25A, 22B, 26B are soft surface (polymer surface) sym type rolls; rolls 22A, 24A, 23B, 25B are steel rolls (either heatable and / or coolable rolls); rolls 23A, 23B are polymer-surfaced rolls; roll 21B i...
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