Plasma nitriding
Wear protection for highly mechanically stressed parts
Plasma nitriding
Wear protection for highly mechanically stressed parts
Plasma nitriding with compound layer (PN)
Plasma nitriding is a thermochemical process for enriching the surface layer of a workpiece or component with nitrogen. Due to the nitrogen input, a diffusion layer and a compound/precipitate layer develops. Due to the high level of wear resistance, this method is especially suitable for highly mechanically stressed parts.
Compound layer: up to 15 µm
Precipitate layer: up to 0.8 mm
Some application examples:
- Axles
- Aluminium die-casting tools
- Drive rollers
- Extruder screws
- Mould inserts
- Glass moulds
- Plastic injection-moulding tools
- Crankshafts
- Machine components
- Press plungers
- Pump parts
- Worms
- Clamping levers
- Shafts
Plasma nitriding without compound layer (compound-layer-free PN)
During compound-layer-free plasma nitriding, only a precipitate layer forms due to the low nitrogen input. The formation of a compound layer is prevented. This enables a significant increase in fatigue strength through the introduction of compressive residual stress in the tough surface layer.
Compound layer: 0-3 µm
Precipitate layer: ≤ 0,3 mm
Some application examples:
- Ejector pins
- Bending tools
- Drills
- Springs
- Transmitter wheels
- Piston rings
- Coupling springs
- Embossing dies
- Cutting tools
- Punching tools
- Cup springs
- Torsion damper springs
- Valves
- Valve springs
- Cutting tools