Method for insert molding of heating device with plastic for protecting against aggressive reducing agent for aftertreatment of exhaust gases from combustion engine, involves fixing side piece or rib of heating device in molding tool

摘要

The method involves fixing a side piece (2) or a rib of the heating device (1) in a molding tool in a rotation prevention manner by a mechanical fastening element during insert molding, where the fastening element made of thermoplastic, particularly polyamide, partially encases the side piece or the rib. The mechanical fastening element is positively or non-positively connected with the side piece. A thermoplastic plastic, particularly high-density polyethylene, is used for insert molding. The plastics of the fastening element and the overmold (4) are connected in a helium-tight manner.