Pulsed Plasma Nitriding
Pulsed plasma nitriding can realise all possible nitride layers, with excellent repeatability.
- Compound layer free for the highest fatigue resistance, and also for parts which are to be subsequently coated.
- Gamma prime compound layer for high wear resistance with high toughness
- Epsilon compound layer for high wear and corrosion resistance
- Post oxidation for corrosion resistance and enhanced running in behaviour.
Parts can be easily masked with preferably mechanical tooling or with stop off paint. Distortion is usually negligible, however there is a small predicable surface growth that can be allowed for during final machining.
This means parts can normally be completely finished machined including threads etc. before nitriding. Saving on overall manufacturing cost.
Stainless steel can be successfully nitrided with generally no requirement for separate surface activation processes prior to treatment. Stainless steels can also be nitride at low temperature so the corrosion resistance is unaffected.
Pulsed Plasma furnace working volumes;
- Pulsed plasma hot wall nitrider (PN2); 0.85m dia X 1.90m high
- Stress relieving
- Plasma nitriding
- Plasma nitrocarburising
- Post oxidation with air.
- Post Oxidation with steam.
- Turbine shafts
- Actuator rods
- Refuelling tubes
- Weapons system components
- Piston rings
- Pressed steel parts
- Damper rods
- Steering rack and pinions
- Sintered parts