| 摘要 |
PROBLEM TO BE SOLVED: To place a symmetrical multi-port powder injection ring at a plasma gun outlet nozzle.SOLUTION: A powder injection apparatus 70 arranged symmetrically is installed at the outlet nozzle of the plasma gun. The powder injection apparatus has a shroud 55 which can be installed at the outlet nozzle of the plasma gun. The shroud 55 forms a smooth and continuous inner wall at the outlet nozzle of the plasma gun. |
