51 results about "Liquid plasma" patented technology

The invention provides a method for continuously treating a surface of a large-area metal material through liquid plasma, and belongs to the field of surface treatment. The method is characterized in that sodium carbonate, sodium bicarbonate and the like or other metallic salt solutions (such as zinc sulfate and nickel sulfate) are adopted as the main mediums and mixed with a large quantity of insulated solid particles; the metal material to be treated is fed into the mixture and treated as a cathode; platinum or graphite and other noble electrode materials are treated as an anode; the cathode and the anode are connected with a large-power power supply to form a loop; high-voltage pulse plasma is utilized to discharge electricity, the resulting huge local current can generate a plasma area on the surface of the anode, and the plasma area can be utilized to wash the metal surface and deposit a plating layer. According to the method, a speed-adjustable transmission device is utilized to perform continuous surface treatment for a rolled or shaft-mounted metal wire and a coiled metal board; the absolute materials are mixed to effectively decrease the power density in the treatment process, so that the metal board and the wire can be treated in a large area. The method is applicable to the treatment of hot and cold rolled steel belts of a steel plant. The method can greatly decrease the energy consumption, decrease the pollution and improve the efficiency.