B - Operations – Transporting – 27 – L
Patent
B - Operations, Transporting
27
L
B27L 11/00 (2006.01)
Patent
CA 2434868
The present invention relates to a method for reconditioning after rehardfacing the wear plates that are used on the mounting face of the knife disc of a disc chipper so that the original dimensions of the wear plate are substantially restored and further to a wear plate reconditioned in accordance with the method. According to the invention, the rear side (9) of the wear plates is machined to incorporate at least one additional groove (14; 14', 19) and into the grooves (12 and 14; 14', 19) made on the wear plate rear side are affixed machining allowance strips (16, 17), whereupon the allowance strips can be machined as required to restore the thickness dimensions of the wear plate.
La présente invention concerne un procédé permettant de reconditionner après rechargement les plaques d'usure qui sont utilisées sur la face de montage du disque à lames d'une déchiqueteuse à disque de façon à rétablir sensiblement les dimensions originales de la plaque d'usure. L'invention concerne également une plaque d'usure reconditionnée selon le procédé. En l'occurrence, la face postérieure (9) des plaques d'usure subit un usinage visant à ajouter au moins une rainure (14, 14', 19). On met ensuite des cordons de surépaisseur d'usinage (19, 17) dans les rainures (12, 14, 14', 19) de la face postérieure des plaques d'usure. Il ne reste plus qu'à usiner les cordons de surépaisseur de façon à rétablir les dimensions en épaisseur de la plaque d'usure.
Mcfadden Fincham
Metso Paper Inc.
LandOfFree
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