Method and device for annealing and rotary swaging multiplex composite rare-earth tungsten electrode

The invention discloses a method and a device for annealing and rotary swaging a multiplex composite rare-earth tungsten electrode. The method comprises the steps of carrying out B203, B202 and B201 stages of swaging processes on a rare-earth tungsten bar in turn. In the B203 swaging process, the bar is placed into a molybdenum wire furnace to undergo annealing treatment when the bar is swaged to a set size before annealing; and after the annealing treatment, the annealed bar is directly placed into a serial forging device to be continually swaged to a target size of B203. The realization of the embodiment of the invention can replace a traditional incipient fusion annealing technical scheme by using the molybdenum wire furnace to anneal, so that the energy consumption can be reduced effectively; and the technical scheme of connecting the molybdenum wire furnace with an automatic serial punching device provided by the embodiment of the invention in series can highly automatize modes of production, simplify th