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plasma nitridingmagnifier

During plasma nitriding, in a vacuum at a temperature between 350 °C and 600 °C, in the presence of nitrogen and electric field, a plasma of accelerated atoms develops which collide against steel surface at a very high speed. A hard compound layer of nitrides is formed, followed by a diffusion layer and tough core.

In Micropuls® plasma nitriding, we use the processes of PLASNIT® and PLASOX® to control different compositions and structures of nitriding layers. By setting the right parameters, it is possible to perform the nitriding process without a white compound layer and achieve its controlled growth.

PLASMA NITRIDING AND NITROCARBURIZING (VERTICAL)

Maximum workpiece dimensions Maximum workpiece weight Medium (surrounding substance)
φ 1000 × 1850 5000 kg N₂+H₂+Ar+CH₄+H₂O

Advantages:

  • High surface hardness, better wear resistance, lower coefficient of friction, increased corrosion resistance,
  • A wide range of steels which can be nitrided - low and highalloyed steels (high-speed steel, sintered steel, cast iron, stainless steel, ordinary construction steel, etc.),
  • Less surface roughness in comparison with gas nitriding,
  • Anti-corrosion and decorative effect (surface oxidation),
  • Automated process with controlled growth of the white compound layer,
  • High level of repeatability,
  • Partial nitriding is possible through mechanical covering or covering with paste,
  • Shorter times and lower temperatures ensuring minimal dimensional changes,
  • Environmentally friendly process.

Applications:

  • Parts for the automotive industry,
  • Heavy-duty parts in mechanical engineering,
  • Tools for plastics,
  • Hot-work tools,
  • Cutting tools,
  • Die casting tools,
  • Various machine parts: piston rods, pistons, mandrel, connecting rods, shafts, gears, etc.
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