| 摘要 |
The invention relates to a method for controlling the operation of a paper, board or tissue production line ( 11, 12, 13, 14, 17, 18 ). A magneto-rheological or an electrolrheological fluid, whose flow characteristics are changed in a controlled way, is used in the method. The fluid is used as a lubricant between surfaces in a device consisting of a fixed surface and a surface that is moved over it as a heating medium, as the dampening or the power transmission agent of the movement of paper and/or board equipment ( 17, 18 ), or as a hydraulic fluid of the emergency opening cylinders of a set of calender rolls ( 1 ) of a paper and/or board machine.
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