Initial attempts to nitride steel parts with a powerful glow discharge in a low pressure nitrogen atmosphere were made as early as 1930. This hardening process "bombards" the workpieces with ionised gases - a method that has remained unchanged to the present day. Yet it wasn't until the introduction of microprocessors that nitriding could be controlled precisely in the so called "fourth state of matter", i.e. plasma.
Plasma nitriding is used to build up special layers and is characterised by a high level of reproducibility and short process times. This method is the preferred choice for sliding and rolling component pairs like pistons and gear wheels as well as other parts that must exhibit particular resistance to wear.
HÄRTEREI REESE operates installations that generate plasma pulses for nitriding extremely large workpieces with very little distortion.