FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy, particularly, to production of nanocrystalline magnetically soft powders. It can be used for production of high-efficiency electromagnetic protection systems built around radio wave absorbing materials. Initial material, an amorphous band of magnetically soft alloys is subjected to heat treatment at the temperature (0.35-0.37)Tliquidus for 30-90 minutes and, then, cooled in air. Heat treated band is ground in high-rpm disintegrator to nanocrystalline powder with fraction size of 15-35 mcm.
EFFECT: higher efficiency of production at high magnetic permeability.
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