FIELD: metallurgy.
SUBSTANCE: procedure for nitriding steel items in glow discharge consists in vacuum heating items corresponding to cathode in plasma of nitrogen of higher density. Plasma of nitrogen of higher density is formed in a near cathode area with a beam of electrons generated and accelerated with an auxiliary anode. Electrons emitted from an electron gun are directed to the anode and to the auxiliary anode generating electron gas flow facilitating collision of electrons with neutral particles and maintaining plasma existence. Velocity of electrons motion is controlled with the auxiliary anode connected to its own source of power.
EFFECT: intensified nitriding, increased contact durability and wear resistance of strengthened layer.
1 dwg, 1 ex
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