Heater plug manufacturing method for e.g. diesel engine, involves partly surrounding connecting area by solid ceramic element with electrically insulating characteristics, and partially cutting solid ceramic element in cutting process

摘要

The method involves electrically interconnecting connection contacts (128, 130) of a glow plug (110) i.e. heater plug (112), within a connecting area (132). An electrically conductive tablet (146) is used within the connecting area for electrical connection of the connection contacts. The connecting area is partly surrounded by a solid ceramic element (148) with electrically insulating characteristics, and the solid ceramic element is partially cut i.e. pulverized, in a cutting process. The tablet is made of a metallic powder e.g. silver powder, and a conductive ceramic powder and a graphite.