METHOD bulk relaxation and hardening of the surface of metal parts in thermoacoustic - TAO WAY OR THE JOINT thermoacoustic and chemical treatment - METHOD Tahoe under resonance EXPOSURE AND DEVICE FOR CARRYING OUT THE WAYS

摘要

1. A method for treatment of metal parts when exposed to compressed air flow on the workpiece placed in the chamber, characterized in that for the bulk relaxation and surface hardening of parts, the conditions of the acoustic resonance effects within the chamber in the range 500-5000 Hz by recirculating airflow performance of the air blower from 10 to 100 m / min at an elevated pressure in the range of 1.5-4.5 atm, and further the conditions for the thermal effects by direct heating parts in the chamber of 150 to 450 C ° or cooling air potokom.2. A method according to claim 1, characterized in that for the realization of the joint thermoacoustic and chemical treatment of products in a chamber under conditions of an acoustic resonance effect of further conditions for surface chemical effects by introducing gaseous chemical reactant, such as methane, hydrogen, nitrogen and ammonia, and mixtures thereof in the airflow, the gas concentration of the component in relation to the air in the chamber is as follows: hydrogen: 2 to 2.5%, methane: 10 to 25% nitrogen: 15 to 25% by ammonia: 15 to 45% .3. The apparatus performs a job according to the method claim 1, configured as a hermetically sealed cylindrical chamber with a lifting lid, the center of which is located a centrifugal air blower, placed inside the chamber axial resonator chamber in which the workpieces are placed, the resonator chamber and have a device for heating the pieces in an electric heater, butterfly valves for controlling the slot nozzle width WMOs