Edge-provided tool and method for the manufacture thereof

Details Edge-provided tool and method for the manufacture thereof Edge-provided tool and method for the manufacture thereof

D - Textiles, Paper

21

G

D21G 3/00 (2006.01) C23C 24/00 (2006.01)

Patent

CA 2550107

The invention relates to an edge-provided tool, such as a doctor blade, for use as wiping tool in the production of pulp and/or paper in different stages of the production process. It consists of an edge-provided strip of steel, the edge portion of which has been provided with a wear-resistant coating applied by means of laser technique, so that metallurgical binding is present between said coating and the steel strip, whereby a level of surface hardness of more than 850 HV being attained. Thereby, wear-resistant doctor blades having a long service life have been obtained.

L'invention concerne un outil doté d'arêtes, tel qu'une racle, utilisé comme outil d'essuyage à différentes étapes de la production de pâte et/ou de papier. Cet outil est constitué d'une bande d'acier dont la partie arête est recouverte d'un revêtement antiusure appliqué au moyen d'une technique laser, de sorte à former une liaison métallurgique entre ledit revêtement et la bande de métal, une dureté de surface supérieure à 850 HV étant obtenue. Les racles antiusure selon l'invention présentent ainsi une longue durée de vie.

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