Production Process of Plastic Parts by Reaction Injection Moulding, and Related Head Device

The present invention relates to a process and device RIM involving a mixing chamber ( 1 ) with opposing injectors ( 2, 3 ). The efficiency is maximised through the operation in flow regimes with very strong mixing dynamics, which is assured by means of the introduction of schemes to: detect the flow regime within the mixing chamber, through the dynamic pressure measurement upstream of the injectors ( 2, 3 ), using means ( 5 ); and/or impose a chaotic flow regime, through the pulsation of the opposed jets, using means ( 6 ). Alterations in design, comparatively to the traditional geometries, are also proposed, concerning: the mixing chamber ( 1 ), being foreseen a prismatic rectangular chamber; the injectors ( 2, 3 ), being foreseen elongated injectors; and even the scheme of injection of the materials, using a third injector ( 4 ).