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Article: Effects of radial force and tip path overlap on the ring debarking efficiency of frozen balsam fir logs.
- Article from:
- Forest Products Journal
- Article date:
- March 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 Forest Products Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
This study investigated the effects of the static radial force applied by ring debarker tips to frozen balsam fir logs, and tip path overlap on debarking quality. The radial force is applied by a hydraulic cylinder acting on a lever that forces a tip attached to a tool arm to remove the bark from the log. Each pressure system is set into a rotating ring that peels the log while it is fed through the debarker. The experiment consisted of debarking balsam fir logs using three levels of static radial force, each with two values of overlap between the tip paths. Debarking quality was evaluated by three parameters: the wood fiber loss volume, the percentage ...