| 摘要 |
The electric current for the generation of the cathodic and anodic plasma jets (15) is divided into three parts, one passing through the object (2) being treated and the two others supplying the jets. The cathodic jet is at an acute angle( 25 to 60 degrees) to the treated surface and the anodic jet is at an angle about 90 degrees to the surface. A series of alternate cathode and anode jets are used in a direction transversal to the direction of displacement of the abject being treated. The electrical supply feeding the jets forms a loop circuit which is closed by a part of the object being treated. The circuit includes means for varying the electric current passing through the treated object. The plasma jet generator includes an electrode, a stabilizer channel, a pipe forming the jet, and supply system for introduction and control of gas flow for protection of the electrode and gas flow to the jet. Up stream of the plasma treatment zone an air current stabilizer, which includes a cooling system is used. Aero-dynamic bearings are fitted in front and behind the plasma generators. |
