Method for producing coated magnetic powder, method for producing dust core, and method for producing electromagnetic component
US11718901B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | May 17, 2017 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Aug 23, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a coated magnetic powder in which particle surfaces of a soft magnetic powder are coated with a silicone resin includes a preparation step of preparing a silicone emulsion by mixing a silicone resin with water containing a surfactant and dispersing the silicone resin in the water, an application step of applying the silicone emulsion onto particle surfaces of a soft magnetic powder, and a drying step of drying the soft magnetic powder after the silicone emulsion is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.