A method of manufacture of an oxidic magnetic material ring, sinterized, particularly a ferromagnetic material. (Machine-translation by Google Translate, not legally binding)

摘要

A method of manufacturing a ring of magnetic, oxidic, sintered material, particularly a ferromagnetic material, with a filling of a thermoplastic or thermosetting synthetic substance, particularly a magnetically permanent rotor for use in a small electrical machine, consisting of said filling of a polyamide or a polycarbonate, characterized in that the ring is arranged in a closed mold provided with supply ducts for the synthetic substance, after which the liquid synthetic substance is injected both on the inner side and on the outer side of the ring, the latter being removed from the mold after cooling and the synthetic substance being removed from the outer side of the ring. (Machine-translation by Google Translate, not legally binding)