| 摘要 |
In a rotary atomizing head type coating machine, paint mist is prevented from depositing on a shaping air ring and synthetic resin cover. Shaping air ring (21) is constituted by an inner ring (22) of a metallic material, an outer ring (23) of an insulating synthetic resin material, and a shaping air outlet hole (24) provided at the fore ends of the two rings (22) and (23). The inner ring (22) has its base end (22A) electrically connected to an air motor (2), and provides an annular repulsion electrode (25) at its fore end (22B). This annular repulsion electrode (25) induces strong positive discharges, thereby attracting clouds of negative ions, and preventing paint deposition on and contamination of the shaping air ring by a phenomenon of homopolar repulsions between clouds of negative ions and negatively charged paint particles. <IMAGE> |
