Creping blade
AssigneeBTG Eclepens S.A.
InventorsTore Eriksson, Silvano Freti
Life of this patent
Estimating the term…
Abstract
Creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having an edge or tip section engaging said cylinder and being constantly hit by the traveling web during its detachment from the cylinder. The invention resides in the improvement of said edge or tip section being provided with a wear-resistant coating on a first part of said edge section hit by the web, the other part of said edge section engaging the cylinder being uncoated or coated with a non-wear-resistant material so that said other part is subjected to sliding wear. A recess is located in the side surface so that the wear land surface that contacts the cylinder remains essentially constant throughout the operative cycle of the blade.
Claims16
Creping blade for use with a dryer cylinder in the detachment of a traveling paper web from the dryer cylinder, said blade comprising:
- en edge or tip section including a first part for contacting the travelling web and a second part for engaging the cylinder,
- wherein said first part of said edge or tip section is provided with a wear-resistant coating, and
- wherein the second part of said section is uncoated or coated with a non-wear-resistant material so that said second part is subjected to sliding wear,
- wherein said blade comprises a substantially flat strip having a tip or edge surface, a side surface for facing the cylinder, a junction section between said surfaces for engaging said cylinder, and a recess in said side surface extending along said junction section and forming a narrow wear land on said junction section for conforming to the moving cylinder surface, and
- wherein said recess is designed in such a manner that the wear land surface for engaging the cylinder surface remains essentially constant throughout the operative cycle of the blade.
Dependencies are inferred from the claim text.