Potassium-doped tungsten anode and preparation method and application thereof

The invention relates to the technical field of short-arc gas discharge lamp anode materials, in particular to a potassium-doped tungsten anode and a preparation method and application thereof. The preparation method comprises the following steps: carrying out cold isostatic pressing on potassium-doped tungsten powder serving as raw material powder to obtain a pressed blank; in the hydrogen atmosphere, the pressed blank is subjected to high-temperature sintering, and a sintered bar blank is obtained; a high-speed forging machine is adopted for conducting cogging machining on the sintered bar blank, and then multi-pass high-speed forging machining is conducted; then a rotary hammer machine is adopted for forging machining, and a forged tungsten rod is obtained; the forged tungsten rod is sequentially subjected to linear cutting length fixing, application force annealing, coreless grinding, machining and cleaning, and an anode semi-finished product is obtained; and performing high-temperature annealing on the a