Heat treatment - Nitriding

Discover the benefits that will quickly pay off for your company.

 

Nitriding is a thermo-chemical treatment for the enrichment of the edge zone of a work-piece with nitrogen – or, in nitrocarburizing, with carbon. We use various treatments to achieve the required improvement to your tools, for example by improving the wear behavior, the strength under static and dynamic loading and the corrosion behavior. An improvement of performance characteristics is achieved by forming a nitrided layer that normally consists of the compound layer and diffusion layer sub-layers.

Shared advantage in expertise ...

... thanks to decades of experience and successful cooperation with renowned steel manufacturers.

Plasma nitriding

In plasma nitriding, the nitrogen is introduced into a vacuum chamber and ionized using an electric field (glow discharge). It is then accelerated in the direction of the tool surface and absorbed.

 

Areas of application/use

  • Automotive industry
  • Medical technology
  • Aerospace industry
  • Medical technology
  • Textile industry
  • Mechanical engineering
  • Tool making

 

Material groups

All steel qualities can be nitrided.

We perform the following plasma nitriding heat treatments

  • Plasma nitriding
  • Plasma nitrocarburizing
  • Improx® oxidizing (oxidizing in plasma)
  • Combination of plasma nitriding or nitrocarburizing with oxidizing

 

The advantages

  • A specific coating structure is possible (e.g. nitriding without the compound layer)
  • An environmentally friendly, non-toxic process
  • Partial nitriding is possible

Talk to us.<br/>We’ll be happy to advise you.

T: +49 (0)911 36014-1042
hot-nuernberg@hot-online.de

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Gas nitriding

In the gas nitriding process, ammonia is introduced into a chamber. Under the influence of heat, the nitrogen decomposes on the tool surface which acts as a catalyst. The atomic nitrogen diffuses into the surface.

 

Areas of application/use

  • Automotive industry
  • Medical technology
  • Aerospace industry
  • Medical technology
  • Textile industry
  • Mechanical Engineering
  • Tool making

 

Material groups

Low-alloy and alloyed steels up to a maximum CO content of 5%.

We perform the following gas nitriding heat treatments

  • Gas nitriding
  • Gas nitrocarburizing
  • Oxidizing
  • Combination of gas nitriding or nitrocarburizing with oxidizing

 

Advantages compared to plasma nitriding

  • Drill holes (bores) can be nitrided
  • Nitriding possible on all sides

As a result of plant technology, it is not possible to gas nitride high-alloyed materials

Sprechen Sie mit uns.
Wir beraten Sie gerne.

T: +49 (0)911 36014-1042
hot-nuernberg@hot-online.de

Salt bath nitriding

Salt bath nitriding involves immersing the tools to be treated in molten salt, which releases nitrogen and carbon onto the component surface at a temperature of approx. 580°C, resulting in an increase in hardness.

 

Areas of application/use

  • Machinery and apparatus Engineering
  • Vehicle manufacturing
  • Precision engineering
  • Automotive industry

 

Material groups

  • High-alloyed steels/alloyed steels
  • Rust and acid-resistant steels
  • Alloyed case-hardened and quenched and tempered steels
  • Unalloyed steels

We perform the following salt bath heat treatments

  • Salt bath nitrocarburizing
  • Post-oxidation

 

The advantages

  • Very short treatment time
  • Treatment of high-alloyed/high-chrome steels is possible without any problems

Your contact

Talk to us.
We’ll be happy to advise you.

T: +49 (0)911 36014-1042
hot-nuernberg@hot-online.de