B - Operations – Transporting – 31 – C
Patent
B - Operations, Transporting
31
C
B31C 3/00 (2006.01) B31C 11/04 (2006.01) B65H 75/02 (2006.01) B65H 75/10 (2006.01)
Patent
CA 2248665
The present invention relates to a method of manufacturing a core, especially a spiral core, from superimposed plies of board produced by winding, glueing, and drying such, whereby the moisture contents of at least some of the board plies entering the winding stage differ from each other in order to provide a stepwise moisture structure within the core wall. This decreases unfavourable stresses which are produced in the drying stage if a core is manufactured from plies having equal moisture contents.
Procédé de fabrication d'un mandrin, particulièrement d'un mandrin hélicoïdal, à partir d'épaisseurs superposées de carton, par enroulement, collage et séchage. Selon ce procédé, les teneurs en humidité d'au moins certaines des épaisseurs, au départ de l'étape d'enroulement, diffèrent les unes des autres afin que des niveaux d'humidité échelonnés soient obtenus dans la paroi du mandrin. Ceci réduit les contraintes indésirables produites au cours de l'étape de séchage lorsqu'un mandrin est fabriqué à partir d'épaisseurs ayant des teneurs en humidité équivalentes.
Ahlstrom Alcore Oy
Ahlstrom Cores Oy
Gowling Lafleur Henderson Llp
LandOfFree
Core and a method of manufacturing such does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Core and a method of manufacturing such, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Core and a method of manufacturing such will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2081038