Method for prevention of bar ring oscillations in roll gap construction of manufacturing machine for fiber course material, involves arranging lower rolls and upper rolls one above other

摘要

The method involves arranging lower rolls (1, 2.1) and upper rolls (1.1,2) one above the other. A piston of a hydraulic cylinder (7) is retained during an operation in a distance for end position in the cylinder for the prevention of bar ring oscillations. Independent claims are included for the following: (1) a calender for calendering fiber course material; and (2) a hydraulic cylinder for use in a roll gap construction of a fiber course machine to the support of the roll.