Coating for hot-shaping core
AssigneeSafran
InventorsJean-Michel Patrick Maurice FRANCHET, Gilles Charles Casimir KLEIN
Life of this patent
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Abstract
The invention concerns a method for coating a core (1) for producing a turbomachine part (2) by isostatic compacting, for example a leading-edge shield of a blade, the coating method comprising the steps of:—S1: covering the core (1) by means of a first solution comprising a first refractory component configured to oppose the diffusion of species, the first component comprising a metal oxide,—S2: covering the core (1) by means of a second solution comprising a second component designed to bind the first component in such a way as to form a homogeneous layer, the second component comprising a mineral binder;—S3: applying a heat treatment to the covered core (1) in such a way as to dry the solution and solidify the coating.
Claims15
1-12. (canceled)
A process for coating a core for a manufacture of a turbomachine part by isostatic pressing, for example a leading-edge shield of a blade, the coating process comprising the steps of:
- S1:
- Coating the core with a first solution comprising a first refractory component configured to oppose species diffusion,
- the first component comprising a metal oxide;
- S2:
- Coating the core with a second solution comprising a second component configured to bind the first component so as to form a homogeneous layer,
- the second component comprising an inorganic binder;
- and
- S3:
- Applying a heat treatment to the coated core so as to dry the solution and solidify the coating.
Dependencies are inferred from the claim text.