ELECTRIC-ARC PLASMATRON Russian patent published in 2017 - IPC H05H1/26 

FIELD: electricity.

SUBSTANCE: proposed arc plasmatron. Arc plasma torch comprises a housing, which has coaxially installed anode, cathode and insulating sleeve with openings. The flow of the anode is formed as a channel of variable cross-section formed by three coaxial cylinders that are conjugate truncated cones. Cones are turned to their upper bases of the central cylinder. The cathode is water-cooled copper sleeve with a refractory insert at the end and has the shape of a truncated cone. The holes in the insulating sleeve are arranged in several rows, each of which contains at least six holes distributed uniformly along the circumference. The holes are arranged such that their axes intersect with the longitudinal axis of the plasma torch.

EFFECT: increase of the plasma torch operating current to 2000 A, increased productivity sputtering process, an increased service life of the electrodes, and the possibility of plasma jets with different shape and temperature.

2 dwg, 2 ex