Explanation

The metal or alloy to be atomized is used as a rotating consumable electrode to generate an arc through the fixed tungsten electrode to melt the metal or alloy. When the consumable electrode rotates rapidly, the centrifugal force will crush the molten metal or alloy into small droplets and fly out. The electrodes are installed in the powder collection room. The collection chamber is first vacuumed and then filled with inert gases such as argon or helium before atomization. The droplet solidifies in an inert atmosphere before touching the wall of the powder collection chamber. The advantage of this process is that the powder is clean, spherical powder can be produced, and the particle size is uniform. The disadvantages are low production efficiency, high equipment and processing costs, and coarse partidesize.

Classification