The invention discloses an insulation treatment method of an iron-
nickel-
molybdenum alloy soft magnetic material, belongs to the technical field of magnetic materials, aims to solve the problem of high
eddy current loss caused by
large particle size of
powder prepared by an original material preparation technology, and provides an insulation treatment method of an iron-
nickel-
molybdenum alloy soft magnetic material. The method comprises the following steps: mixing an iron block, a
nickel block and a
molybdenum block according to a
mass percentage; adding the raw materials into an atomizing furnace, and presetting a preset temperature and a heating duration; preparing iron-nickel-molybdenum
alloy soft
magnetic powder with high magnetic
conductivity by adopting an atomizing method in the atomizing furnace; and putting
tetraethyl orthosilicate into a
mortar, mixing for 10-30 minutes, and
drying at 60-90 DEG C for 2-4 hours to obtain the iron-nickel-molybdenum alloy soft magnetic material. According to the invention, the atomizing angle of the
nozzle of the gasification furnace is designed, the effect is to accelerate
airflow while it is guaranteed that the
airflow at an outlet of a contraction section is uniform, straight and stable, the
nozzle generates the laminar flow effect, the particle size of atomized
powder is finer, water atomization is designed to
impact a film and gas atomization is designed to conduct secondary homogenization and shaping, and the high-magnetic-
conductivity annular
magnetic powder core is prepared.