B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
117/105, 32/3
B05C 11/04 (2006.01) B05D 1/42 (2006.01) B05D 3/12 (2006.01) B41F 9/10 (2006.01) D21G 3/00 (2006.01) D21H 23/34 (2006.01)
Patent
CA 2000603
ABSTRACT OF THE DISCLOSURE This publication discloses a method for the coating of a moving material web and scraping a backing member (5) as well as a deflection compensated doctor blade (1). According to the method, the deflection of the doctor blade is compensated by first determining the deflection of the doctor blade and then adapting appropriately selected forces to be exerted on the doctor blade (1) so as to achieve by these forces such deformations in doctor blade that have an equal magnitude but an opposite direction in relation to those caused by blade loading on the doctor blade (1). This approach results in the nullification of the superimposed deflection (11). The forces are adapted to be exerted at a determined distance (RT) from the pivotal bearing points of the doctor blade (1) and at a determined distance (RV) from the pivotal axis (3) of the doctor blade.
Kinnunen Jorma
Swabey Ogilvy Renault
Valmet Paper Machinery Inc.
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