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Powder mixture for powder magnetic core, and powder magnetic core
US2018182520A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018182520-A1 |
| Application number | US-201615578914-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 27, 2016 |
| Priority date | Jun 4, 2015 |
| Publication date | Jun 28, 2018 |
| Grant date | — |
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Abstract
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The present invention pertains to: a powder mixture for powder magnetic core obtained by mixing a lubricant, a solid lubricant, and a soft magnetic powder coated with an insulating coating, wherein a lubricant content is 0.1% by mass or more and 0.8% by mass and a solid lubricant content is 0.01% by mass or more and 0.2% by mass or less; and a powder magnetic core in which the powder mixture is used.
First claim
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1 . A powder mixture, obtained by mixing a lubricant, a solid lubricant, and a soft magnetic powder coated with an insulating coating, wherein a lubricant content is 0.1% by mass or more and 0.8% by mass or less and a solid lubricant content is 0.01% by mass or more and 0.2% by mass or less. 2 . The powder mixture according to claim 1 , wherein the insulating coating is a phosphoric acid-based coating. 3 . The powder mixture according to claim 1 , wherein the lubricant is an organic lubricant consisting of an organic compound having a straight chain structure with 12 or more carbon atoms, and the solid lubricant is an inorganic lubricant consisting of an inorganic compound having a density of 4.0 g/cm 3 or more. 4 . The powder mixture according to claim 1 , wherein the solid lubricant is in the form of a powder having a particle size of 20 nm or more and 20 μm or less. 5 . A powder magnetic core produced by compression molding of the powder mixture according to 4 claim 1 , followed by heat annealing.
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Iron oxide or aluminum oxide · CPC title
Fe-base component · CPC title
in the form of particles {(H01F1/346, H01F1/348 and H01F1/38 take precedence)} · CPC title
in successive or repeated steps · CPC title
by powder metallurgy · CPC title
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- What does patent US2018182520A1 cover?
- The present invention pertains to: a powder mixture for powder magnetic core obtained by mixing a lubricant, a solid lubricant, and a soft magnetic powder coated with an insulating coating, wherein a lubricant content is 0.1% by mass or more and 0.8% by mass and a solid lubricant content is 0.01% by mass or more and 0.2% by mass or less; and a powder magnetic core in which the powder mixture is…
- Who is the assignee on this patent?
- Kobe Steel Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01F27/255. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 28 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).