C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 47/04 (2006.01) C04B 41/88 (2006.01) C23C 2/00 (2006.01)
Patent
CA 2761512
The invention relates to a method for the liquid metal coating of fibers made of a ceramic material, consisting of maintaining a metal load (22) having a spherical shape in a molten state and in levitation within a crucible (12), and running, at a predetermined speed, a stretched fiber made of a ceramic material between an upper pulley (26) and a lower pulley (28) arranged on either side of the crucible such that a portion (35) of the fiber is submerged in the load so as to be covered by a metal coating. During the coating, the portion of the fiber that is submerged in the load is moved based on the remaining volume of the load such that the instantaneous height (h) of the fiber that is submerged in the load remains substantially constant during the entire coating. The invention also relates to a device for implementing said method.
L'invention concerne un procédé d'enduction métallique par voie liquide de fibres en matériau céramique, consistant à maintenir une charge (22) de métal en fusion et lévitation de forme sphérique à l'intérieur d'un creuset (12) et à faire défiler à une vitesse prédéterminée une fibre (24) tendue en matériau céramique entre une poulie supérieure (26) et une poulie inférieure (28) disposées de part et d'autre du creuset de sorte qu'une portion (35) de fibre soit immergée dans la charge pour la recouvrir d'un revêtement métallique. Au cours de l'enduction, la portion de fibre immergée dans la charge est déplacée en fonction du volume restant de la charge de telle manière que la hauteur instantanée (h) de fibre qui est immergée dans la charge reste sensiblement constante tout au long de l'enduction. L'invention concerne également un dispositif de mise en uvre de ce procédé.
Franchet Jean-Michel Patrick Maurice
Klein Gilles Charles Casimir
Sanchez Gerald
Goudreau Gage Dubuc
Snecma
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