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What is Plasma Carburization?

Plasma carburization is a process for improving the mechanical properties of iron and steel. A hydrocarbon gas is ionized using thermal energy and a DC glow discharge, and the resulting carbon ions collide with the surface of the metal being worked. The ions become incorporated, forming a carbide surface with improved properties.

This carbon-forming process enables the carburization of metals that conventionally were difficult to work with. Because SDC Tanaka’s plasma carburizer does not use harmful gases, it is safer for the environment than traditional carburization technologies.

Plasma Carburizing Processing
 

Features:
  • The base material undergoes diffusion hardening, which provides exceptional resistance to wear, burning, separation and shock.
  • Propertiesof the hard outer surface and hardness distribution can be controlled according to the intended purpose.
  • The resulting graded composition provides outstanding heat shock resistance.
  • Plasma carburization is a green, non-polluting technology that also cuts energy use

Surface Reforming with Plasma Carburization

Plasma carburization changes the surface structure as shown in the photograph below. The figure showing the hardness profile also shows that the surface composition is extremely hard. The incline of the hardness distribution also indicates how carbon is diffused toward the interior.

 
 

 

Surface Property Modification by Plasma Carburizing 1

 

Surface Property Modification by Plasma Carburizing 2


Surface Property Modification by Plasma Carburizing (Chart)

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