METHOD AND DEVICE FOR ACCELERATED NITRATION OF MACHINED PARTS BY ELECTROMAGNETIC FIELD PULSES Russian patent published in 2014 - IPC C23C8/36 C23C14/06 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to ion-nitration of machine parts with the help of electromagnetic field pulses. Reaction gas is fed into nitration chamber and heated therein with simultaneous generation of alternating electromagnetic field therein by solenoid. Said solenoid houses processed part with direction of magnetic induction vector perpendicular to part processed surface and with variation nitration amount with formation of square pulses. Duration and cycle of said pulses ensure acceleration of nitrogen ions penetration in processed surface owing to vertical front of magnetic field intensity ride. Device to this end comprises part nitration chamber, reaction gas feeder, heater and electromagnetic field generator. The latter is composed of solenoid surrounding said chamber to generate pulsed electromagnetic field with square pulses and direction of magnetic induction vector perpendicular to part processed surface.

EFFECT: simultaneous acceleration of nitration, higher mechanical properties of surface plies.

4 cl, 3 dwg