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Machine translation
1. (WO1991002841) REFINING ELEMENT AND METHOD OF MANUFACTURING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1991/002841    International Application No.:    PCT/US1990/000599
Publication Date: 07.03.1991 International Filing Date: 05.02.1990
Chapter 2 Demand Filed:    11.03.1991    
IPC:
D21D 1/30 (2006.01)
Applicants: SPROUT-BAUER, INC. [US/US]; Sherman Street, Muncy, PA 17756 (US)
Inventors: SHARPE, Patrick, E.; (US).
SANDVEN, Ole, A.; (US)
Agent: RISTAS, L., James; Chilton, Alix & Van Kirk, 750 Main Street, Hartford, CT 06103 (US)
Priority Data:
397,930 24.08.1989 US
Title (EN) REFINING ELEMENT AND METHOD OF MANUFACTURING SAME
(FR) ELEMENT DE RAFFINAGE ET SON PROCEDE DE FABRICATION
Abstract: front page image
(EN)A refiner element (10) for the refining of fibrous material is provided with a comminuting surface of which at least a portion comprises an abrasive surface. The method of forming the refiner element (10) comprises casting a metal substrate (20) having a frontal surface (22), melting a relatively thin layer of the metal substrate on the frontal surface thereof to form a molten pool in the comminuting surface over the region thereof on which an abrasive surface is desired, depositing an abrasive material (38) into the molten pool formed in the metal comminuting surface (22) of the refiner element (10), and allowing the molten metal pool into which the abrasive material (38) has been deposited to solidify whereby the particles of abrasive material (38) are strongly bonded into the metal surface of the refining element to form the abrasive comminuting surface thereon. Most advantageously, the melting of a thin layer of the frontal surface (22) on the metal substrate (20) of the refiner element (10) is accomplished by directing unto the comminuting surface a laser beam (88) of sufficient intensity to melt the surface to a pre-determined depth.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________x
(FR)Un élément de raffinage (10) pour le raffinage de matières fibreuses possède une surface de trituration dont au moins une partie comprend une surface abrasive. Le procédé de formation de l'élément de raffinage (10) consiste à couler un substrat métallique (20) ayant une surface frontale (22), à faire fondre une couche relativement fine du substrat métallique sur sa surface frontale pour former un bain de fusion dans la surface de trituration au dessus de sa région sur laquelle une surface abrasive est désirée, à déposer une matière abrasive (38) dans le bain en fusion formé dans la surface de trituration de métal (22) de l'élément de raffinage (10) et à laisser se solidifier le bain de métal en fusion dans lequel la matière abrasive (38) a été déposée de sorte que les particules de matière abrasive (38) adhèrent fortement à la surface de métal de l'élément de raffinage pour former la surface de trituration abrasive. Plus avantageusement, la fusion d'une couche mince de la surface frontale (22) sur le substrat métallique (20) de l'élément de raffinage (10) s'effectue en envoyant sur la surface de trituration un rayon laser (88) d'une intensité suffisante pour faire fondre la surface jusqu'à une profondeur prédéterminée.
Designated States: AU, BR, CA, FI, JP.
European Patent Office (AT, SE).
Publication Language: English (EN)
Filing Language: English (EN)