Device for moulding articles of composite material and process using such a device

Claim 3

The device according to claim 1, wherein said female half-mould comprises a groove perimetrically around its mould impression, inside which a hollow and a pressurizable O-ring positioned within the groove.

Claim 4

The device according to claim 1, wherein each nozzle comprises a flow control device comprising a pin regulator.

Claim 5

A process for moulding manufactured articles of composite material comprising the following steps: a) placing a reinforcer fibrous material in the interior of a female half-mould, b) positioning a male half-mould opposite to, and spaced apart from, said female half-mould, the male half-mould comprising a central recessed seat inside which a closing ram is slidingly mounted and into which two inclined feed nozzles open for feeding resin and catalyst respectively, with the inclination of said nozzles being such as to mix the resin and catalyst substantially outside of the recessed seat, c) feeding said nozzles, with the closing ram in a retracted configuration, with resin and catalyst in amounts sufficient to subsequently impregnate the reinforcer material, d) moving the closing ram to a forward position substantially flush with a mould impression of the male half-mould, the closing ram simultaneously closing the nozzles, d) tightly closing the half-moulds against each other, so as to allow the catalysed resin to impregnate the reinforcer material and set, and e) separating the half-moulds from each other in order to allow the manufactured article to be demoulded.

Claim 6

A process for moulding manufactured articles of composite material comprising the following steps: a) placing a reinforcer fibrous material in the interior of a female half-mould, b) positioning a male half-mould opposite to, and spaced apart from, said female half-mould, the male half-mould comprising a central recessed seat inside which a closing ram is slidingly mounted and into which two inclined feed nozzles open for feeding resin and catalyst respectively, with the inclination of said nozzles being such as to mix the resin and catalyst substantially outside of the recessed seat, c) feeding said nozzles, with the closing ram in a retracted configuration, with resin and catalyst in amounts sufficient to subsequently impregnate the reinforcer material, d) moving the closing ram to a forward position substantially flush with a mould impression of the male half-mould, the closing ram simultaneously closing the nozzles, d) tightly closing the half-moulds against each other, so as to allow the catalysed resin to impregnate the reinforcer material and set, and e) separating the half-moulds from each other in order to allow the manufactured article to be demoulded.