Device for surface fusion treatment of artificial stone products

A device for surface fusion treatment of artificial stone products, comprising:

• anode and cathode assemblies of a plasma generator mounted separately and creating an arc discharge along the plane of a surface to be treated, an anode and a cathode of said anode and said cathode assemblies each being made as a round rod and arranged parallel to each other, the arc discharge being created in a direction normal to the axes of said anode and said cathode;
• bearings supporting said anode and said cathode assemblies, and in which the ends of said anode and cathode are axially fixed;
• drives rotating said anode and said cathode about their axes in opposite directions as viewed from the working zone side;
• a screen made as a hermetically sealed chamber, shaped as an elongated body whose width slightly exceeds the diameter of said arc discharge, and having a gas-permeable bottom to supply a plasma gas therethrough from the interior of said chamber, said screen being arranged between said anode and said cathode at right angles to the axes of said anode and said cathode so that said bottom of said screen is facing said working zone;
• guides supporting said screen and disposed parallel to the axes of said anode and said cathode;
• and
• a drive effecting reciprocating displacement of said screen, thereby providing displacement of said arc discharge along the axes of said anode and said cathode.