摘要:
The invention relates to a device for forming and consolidating a textile preform (600) comprising continuous fibers impregnated with a thermoplastic resin, characterized in that it includes: i) a die (200) including a former (210) comprising a cavity (220) corresponding to the shape of the part, the depth of said former extending between an inlet plane and a bottom, and said former being inserted into a mold base (230); ii) means (241, 242) for the induction-heating of the former (210), including two inductors which extend into recesses of the former (210), and each of which forms a turn in a plane substantially parallel to the inlet plane of the cavity (220) and located between said inlet plane and the bottom of the former; and iii) a means (235) for cooling the die. The invention also relates to a method implemented by said device and to a part produced by such a method.
摘要:
The invention relates to a device for detecting a break-in attempt on an opening (2) moveably mounted relative to a frame (3), characterised in that it comprises a sensor (4) connected to a supply and processing circuit, said sensor (4) including two electrically conductive layers between which an insulating layer is provided, each of the conductive layers being connected to an electric power supply, wherein said sensor (4) is to be inserted between the frame (3) and the opening (2).
摘要:
The invention concerns a device for transforming materials, in particular composites, comprising: two mutually mobile mold casings (10, 20), electrically conductive and including a molding zone (12, 22) designed to be in contact with the material to be transformed, and inductive means (30) for generating a magnetic field, the surfaces of one of the mold casings (10, 30) located opposite the inductive means, except the molding zones (12, 22), being coated with a shielding coat (14, 24) of non-magnetic material preventing the magnetic field from penetrating into the mold casings (10, 20), the mold casings being electrically insulated relative to each other so that their opposite surfaces delimit an air gap wherein flows the magnetic field inducing currents at the surface of the molding zones (12, 22), thereby localizing the heating at the molding zone/material interface.
摘要:
The invention relates to a moulding device (1) for the conversion of a material (40), comprising: - a lower mould body (10), or die, made from an electrically conductive material and comprising a moulding zone (14) intended to be in contact with the material to be converted; an upper mould body (12), or punch, made from an electrically conductive material and comprising a moulding zone (16) intended to be in contact with the material to be converted; a removable intermediate part (18), or core, made from an electrically conductive material and intended to be inserted between the die (10) and the punch (12); induction means (30) capable of generating a magnetic field that surrounds the die (10), the punch (12) and the intermediate part (18); these three components being electrically insulated in pairs, so that the opposite faces of the intermediate part (18) and of the die (10) on the one hand and of the intermediate part (18) and of the punch (12) on the other hand, delimit two air gaps (20, 22) in which the magnetic field flows which induces currents at the surface of the moulding zones (14, 16) of the die (10) and of the punch (12), thus making it possible to localize the action of the inductors at the surface of the moulding zones (14, 16).