Mold, manufacturing process of a mold and manufacturing process of a product in plastic or composite material using this mold

摘要

Mold comprising at least a lower part and an upper part that delimits a cavity inside of which a material to be molded that must be brought to a temperature Ttr greater than 20 ° C, in use, is introduced and then formed by contact with said lower and upper parts of the mold which are heated by the action of an induced current generated by at least one electromagnetic inductor, at least one of said lower and upper parts presenting a thermal transfer zone with said material to be molded, said zone of thermal transfer comprising at least one sub-zone of thermal transfer consisting of at least one ferromagnetic material having a Curie Tc point between 20 and 800 ° C; characterized in that said thermal transfer zone is in contact with a coating consisting of a non-ferromagnetic material with thermal conductivity greater than 30 W.m-1K-1, this same contact with said material to be molded.