FIELD: metallurgy. SUBSTANCE: invention relates to vacuum heat treatment of parts of magnetically soft steels in electric engineering which may also find use in instrumentation engineering and spatial technics. Method includes high-temperature baking in which heating is conducted with rate 550-600 C/h to 880-900 C followed by conditioning for 3-3.5 h and then, after finishing with simultaneously ion-plasma sputtering titanium, zirconium or aluminium nitride, low-temperature baking accompanied with heating to 460-490 C (sputtering temperature) with the same rate. Method also includes backing in vacuum with standardized cooling rate in heat fixing agent and sputtering predetermined-thickness coating. EFFECT: increased thermoradiation characteristics and reduced effort with retaining high magnetic properties. 3 cl
