Magnetic part is prepared by the iron-base soft magnetic alloy with nanocrystalline structure

摘要

The present invention relates to a kind of magnetic parts for preparing by the iron-base soft magnetic alloy with nanocrystalline structure, chemical component, atomic percent, and Fe =. 60 percentages, 0.1.=. Cu.=. 3,0.=. B. ≤25.,0. ≤. Si.=. 30 percentages, further including at least one component can be selected from including niobium, tungsten, tantalum, zirconium, hafnium, titanium and molybdenum content and 0.Between 1 and 30, surplus is impurity by melting, and thus the composition meets relationship 5 simultaneously. ≤. Silicon+B. ≤30. The method is characterized in that, the following steps are included: manufacturing amorphous by magnetic alloy, blank is then subjected to the temperature that crystallization and thermal treatment includes at least one annealing steps from above-mentioned band and magnetic cell and is used for degC degC soaking times 0. between 500 and 600 for manufacturing magnetic part1 and 10 hour, so as to cause nanocrystal composition; Before the crystallization and thermal treatment, the amorphous alloy that is recrystallized at a temperature of the temperature that relaxation heat is handled is low.