Metal soft magnetic composite material inductor and preparation method thereof
US11685980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A preparation method for a metal soft magnetic composite material inductor includes: smelting Fe, Si and Cr and then employing a water atomization or gas atomization means to fabricate an alloy powder; after sifting by particle size, mixing powders of different particle size levels and performing coating insulation, and performing post-granulation to obtain a metal soft composite material granulation powder; adopting the granulation powder to press a material cake, and transferring and molding same; adopting a hollow coil in a liquid-phase coating mold cavity, curing and demolding to obtain a semi-finished product, then continuously heating and curing the semi-finished product, and preparing an end electrode to obtain a finished inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.