Pressure-maintenance device for producing composite parts by resin injection and associated method

摘要

A pressure-maintenance device for a resin injection system including an injection network connected to an injection mould, includes a pressurisation device adapted to inject a pressurised gas into a channelling; a first connector adapted to be connected to the resin injection network and adapted to be connected to the channelling; a second connector adapted to be connected to the injection mould of the injection system; the first connector being connected to the second connector by a pressure-maintenance channelling adapted to receive the gas injected under pressure.

主权项

1. A resin injection system able to produce parts from composite materials, said system comprising:
a resin injector; an injection mould comprising a cavity able to receive a woven preform; a resin injection network formed by a resin inlet channelling connecting the resin injector and said injection mould, and a resin outlet channelling able to discharge the excess resin injected into said cavity; a pressure-maintenance device for the resin injection system, said pressure-maintenance device comprising
a pressurisation device adapted to inject a pressurised gas into a channelling;a first connector adapted to be connected to said resin injection network and adapted to be connected to said channelling;a second connector adapted to be connected to said injection mould,said first connector being connected to said second connector by a pressure-maintenance channelling adapted to receive said gas injected under pressure, and a vacuum generator for producing the vacuum in said injection system.