Sealed capacitor winding container and process for hermetically sealing electrical component container with a lid

A process of sealing a housing having a radially projecting rim around an open end of the housing using a gasket of a similar thermoplastic material as the lid and a bonding ring also of the thermoplastic material comprising positioning the gasket between the lid (2) and the rim (7), and the bonding ring below the rim, and in contact with the lid, and pressing the lid onto the gasket while welding the ring to the lid. A process is described for the hermetic sealing of a can-shaped housing of an electrical component with a lid, and a gasket between a housing rim protruding outwardly of the housing top and lid, that permits short process times and leads to components that are suitable for higher voltages with small dimensions. A bonding ring of thermoplastic synthetic material is laid under the housing rim of the metal housing. After the installation of the gasket of the same thermoplastic synthetic material as the lid between the housing rim and the lid, the lid brought into contact with the bonding ring. Finally, the lid is then pressed onto the gasket and simultaneously welded to the bonding ring, preferably by ultrasonics.