G - Physics – 05 – B
Patent
G - Physics
05
B
354/25, 341/47
G05B 15/02 (2006.01) D21F 1/06 (2006.01) D21F 7/06 (2006.01) D21G 9/00 (2006.01)
Patent
CA 2021355
Method and system for regulating transverse distribution of fibre orientation of a web produced by a paper machine. In the method and system, data are collected concerning relationship between the transverse distribution of fiber orientation and the transverse distribution of grammage of a web that is being produced by a paper machine in response runs in various states of operation of the machine. The relationship data thereby obtained are stored in computer memory. In response to such relationship data, the distribution of fiber orientation in the web to be produced is corrected by regulating a transverse profile of a discharge opening of a headbox of the paper machine.
Koskimies Jouni
Laitinen Erkki
Miinalainen Tapani
Neittaanmaki Pekka
Pakarinen Pekka
Sim & Mcburney
Valmet Paper Machinery Inc.
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