Process for manufacturing a shell mold
AssigneesSafran, Safran Aircraft Engines
InventorsWen Zhang, Patrice Henri Claude Ragot
Life of this patent
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Abstract
The invention concerns a method of manufacturing a shell mould (1) with several layers (2, 3, 4, 5), including at least one contact layer (2), from a model (6) of wax or other similar material of a part to be manufactured, the method comprising a step of dipping the model (6) into a contact slip forming the contact layer (2) and comprising an inorganic or organic binder and a powder, wherein the powder is a mullite-zirconia composite.
Claims25
A method for manufacturing a shell mould with several layers including at least one contact layer, from a model of a part to be manufactured, the method comprising a step of dipping the model into a contact slip forming said at least one contact layer and comprising a binder and a powder, characterized in that the powder comprises a mullite-zirconia composite.
A mould for manufacture of a cast and solidified turbomachine part, the mould being made by dipping a model into a contact slip comprising a binder and a mullite-zirconia composite powder to form at least one contact layer.
Dependencies are inferred from the claim text.