Method and device for evaluating burning loss performance of tungsten electrode

The invention provides a method and a device for evaluating burning loss performance of a tungsten electrode, and relates to the field of refractory metal materials. The method for evaluating the burning loss performance of the tungsten electrode comprises the following steps: (1) taking a to-be-evaluated tungsten electrode, connecting the to-be-evaluated tungsten electrode as a cathode with a direct-current power supply, connecting the to-be-evaluated tungsten electrode with a water-cooled copper anode to form a welding path, making a test current be constant, and welding in an argon atmosphere; (2) monitoring a voltage between the cathode and the anode, and when the voltage rises to a preset voltage, cutting off the test current, wherein the preset voltage is any value from 1.05 times to1.15 times of an initial voltage when arcing is stable; and (3) recording evaluation indexes, and judging, wherein the evaluation indexes include one or two of burning loss time and a quality difference of the tungsten elect