Abstract: Motor-vehicle body part including a lenticular sheet made of transparent molded plastic material of a given refractive index (n) higher than 1 and a given thickness (e), includes an external face forming an array of substantially spherical microlenses of a given radius of curvature (R), said microlenses being arranged with a given pitch and, an internal face of the lenticular sheet, which bears an array of three-dimensional features that are arranged with the pitch of the array of microlenses. This array of features is formed from fractions of a whole three-dimensional feature of equal dimensions, two adjacent fractions of three-dimensional features being offset in the direction in question by a given phase shift, each of these fractions of three-dimensional features magnified by a given coefficient of magnification, are juxtaposed on the internal face of the lenticular sheet with a pitch corresponding to the pitch of the microlenses.

Abstract: A shim for a compression mold for manufacturing a component from reinforced plastic, typically from SMC, comprising a fixed molding element, a mobile molding element, and a mobile shim that can be moved by an actuator. The mobile shim comprises a conventional part made of steel but also a part made of a high expansion material with a mean coefficient of expansion that is high enough that its own expansion at the molding temperature places the shim in compression against the molding element and seals against this element, thus eliminating flash on the molded part. This material is advantageously a polyetheretherketone, or PEEK. A mold comprising this shim and a compression molding method are also disclosed.

Abstract: A mold used in the production of plastic materials includes a fixed element and a moving element forming a mold cavity in the closed position of the mold, at least one of the elements including at least a sealing system of the mold cavity, the sealing system being provided with at least one deformable surface made from elastic material in order to produce a sealing contact with a closure surface of the mold cavity, and the deformable surface being mounted to slide in a wall of the mold in such a way as to adjust the sealing contact.

Abstract: Example embodiments relate to a device for control of a temperature of a mold for manufacturing a plastic part, the device including a heat exchange plate including at least one radiation head. A heat-conductive material of the heat exchange plate is in contact with a localized area of a wall of the mold. The at least one radiation head being configured to emit a beam of rays toward the heat exchange plate. Moreover, the invention relates to a method for controlling the temperature of a mold for manufacturing a plastic part.

Abstract: A shim for a compression mold for manufacturing a component from reinforced plastic, typically from SMC, comprising a fixed molding element, a mobile molding element, and a mobile shim that can be moved by an actuator. The mobile shim comprises a conventional part made of steel but also a part made of a high expansion material with a mean coefficient of expansion that is high enough that its own expansion at the molding temperature places the shim in compression against the molding element and seals against this element, thus eliminating flash on the molded part. This material is advantageously a polyetheretherketone, or PEEK. A mold comprising this shim and a compression molding method are also disclosed.