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US 4,732,204 AGranted
Process for the preparation of ceramic cores
AssigneeSociete Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
InventorJacky P. Tabardin
Life of this patent
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Abstract
A process is disclosed for the preparation of ceramic cores which includes injection by means of a press of low power of liquid wax into cavities of a ceramic core disposed in a mould of elastomer produced by moulding of a dummy core which is a replica of the core to be produced.
Claims4
A process for the production of ceramic cores intended for the casting of high precision parts by the lost wax method, the process comprising the steps of:
- (a) providing a core having cavities therein,
- (b) providing a flexible mould,
- (c) filling by means of an injection moulding machine, the cavities of the core with modelling wax while the core is enclosed within the flexible mould, and
- (d) enrobing the core with modelling wax.
1 more element
Dependencies are inferred from the claim text.