On February 4, 2020, LLC NPP ADAMANT sent Falk R-D12.002.01-04 for ion-plasma nitriding.
Ion-plasma nitriding is one of the methods of chemical heat treatment used mainly for products from various grades of steel and cast iron. This method has found its application in the heat treatment of metal parts of machinery, tools, injection and stamped tooling. The method of surface treatment by ion nitriding (IPA) is used in those cases when it is required to increase fatigue endurance, wear resistance, and eliminate metal adhesion to the mold during casting, to increase anti-seize properties. The process of ion nitriding occurs when a glow pulse discharge is excited in an argon-hydrogen-nitrogen mixture, at a gas mixture pressure of up to 1000 Pa. A glow discharge arises between the workpiece and the walls of the vacuum chamber. The surface layer of the workpiece metal is saturated with nitrogen under the influence of ion bombardment of the mixture. Nitride layers with increased hardness are formed on the metal surface.
