PROCESS FOR PREPARING FOR REMOVAL A METAL COATING BY THERMAL SPRAYING ON A SUBSTRATE

A method of preparing a substrate to receive a metal coating deposited by thermal spraying, the method including the following steps: a) depositing a layer of adhesive on the zone to be coated, the layer having a uniform thickness greater than 10 μm and less than 100 μm; b) before the adhesive dries...

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Bibliographische Detailangaben
Hauptverfasser: DUDON, Laurent, Paul, ARANTES, Antonio, Crémildo
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A method of preparing a substrate to receive a metal coating deposited by thermal spraying, the method including the following steps: a) depositing a layer of adhesive on the zone to be coated, the layer having a uniform thickness greater than 10 μm and less than 100 μm; b) before the adhesive dries, cold spraying a metal powder onto the zone to be coated, so that powder particles become embedded at least in part in the layer of adhesive; and c) drying the adhesive in which the powder particles remain held captive, thereby forming an undercoat suitable for receiving a metal coating deposited by thermal spraying. The method is applicable to protecting the leading edges of fan blades.