SOFT MAGNETIC POWDER Russian patent published in 2017 - IPC H01F1/24 H01F41/02 

Abstract RU 2606970 C2

FIELD: metallurgy.

SUBSTANCE: present invention relates to soft magnetic composite powder material based on iron, suitable for making cores in coils, operating at high frequencies, higher than 2 kHz. Proposed coated composite iron-based powder, which includes a first phosphorus-containing layer and a second layer, comprising a combination of an alkali metal silicate and clay particles, containing specified sheet silicates, is well suitable for compression moulding at high pressures, that enables to obtain parts with high density and with improved magnetic properties. After extraction of moulded component from mould it is heat treated in an atmosphere of nitrogen. Present invention also relates to a method for production of soft magnetic components and a component, operating at high frequencies.

EFFECT: high specific resistance of magnetic core and reduced losses on eddy currents is technical result of invention.

24 cl, 6 tbl, 6 ex

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RU 2 606 970 C2

Authors

E Chzhou

Persson Khanna

Dates

2017-01-10Published

2011-12-19Filed