C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 24/08 (2006.01) C23C 24/10 (2006.01) C23C 26/00 (2006.01) C23C 26/02 (2006.01) F16C 33/00 (2006.01)
Patent
CA 2684972
Disclosed is a method for producing an abradable coating for a part of a turbo-machine. Said method comprises the following steps: a) a powdery material is pretreated; b) a processable preliminary product is produced which is to be applied to a part that is to be coated; c) the preliminary product is applied to the part that is to be coated; d) a synthetic binder contained in the preliminary product is burned off; e) the part is sintered; f) the part is finished. Said improved method for producing an abradable coating for a turbo-machine eliminates the drawbacks of the solutions known from prior art. In particular, said method is inexpensive, can be easily combined with other production process steps, e.g. thermal treatments that have to be carried out anyway, and is also suitable as a method for repairs.
Procédé de production d'un revêtement d'usure pour un composant d'une turbomachine comprenant les étapes suivantes : a) prétraitement d'un matériau pulvérulent; b) création d'un produit semi-fini apte à être traité et à appliquer sur un composant à revêtir; c) appliquer le produit semi-fini sur le composant à recouvrir; d) pyrogénation d'un liant plastique contenu dans le produit semi-fini; e) frittage du composant; f) posttraitement du composant. Ce procédé amélioré pour produire un revêtement d'usure pour une turbomachine permet de remédier aux inconvénients des solutions de l'état de la technique. En particulier ce procédé est économique, peut être associé à d'autres étapes de traitement de fabrication, par exemple, des traitements thermiques et convient également comme procédé de réparation.
Marks & Clerk
Mtu Aero Engines Gmbh
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