ELECTRODE FOR ARC FURNACES

摘要

Electrode for arc furnaces, comprising a water-cooled upper section of metal and a replaceable lower section of consumable material, which are connected by means of a threaded nipple or the like. …To obtain signals which inform on the presence of the consumable section, there is at least one light-receiving element (11) located in the connection zone (21) of the cooled metal shaft (2) and the consumable section (3). The light signal falling on the light-receiving element (11) in the absence of the consumable section (3) is passed in an appropriate manner via a light wave guide (13) to the furnace control which releases the safety system.