公开(公告)号：US20230268106A1

公开(公告)日：2023-08-24

申请号：US18012863

申请日：2021-01-15

Applicant: POSCO CO., LTD.

Inventor： Hyungjin Kim ,  Seil Lee ,  Jeasook Chung

IPC: H01F1/147 ,  H01F1/24 ,  B22F9/08

CPC classification number: H01F1/14766 ,  H01F1/24 ,  B22F9/082 ,  B22F2301/35 ,  B22F2304/10

Abstract: Disclosed are a soft magnetic iron-based powder, a preparation method therefor, and a soft magnetic component, which are applicable to various industrial fields such as a core of a motor. According to an embodiment of the disclosed soft magnetic iron-based powder, the powder comprises, in wt %, more than 2% of Si, more than 0.02% of Al, more than 0.05% of Mn, more than 0% and less than 0.1% of O, and the balance being Fe and unavoidable impurities, and satisfies [Si]/[Al]>2, wherein the difference in [Si]+[Al]+[Mn] between D10 and D90 may be less than 10 wt %. [Si], [Al], and [Mn] represent wt % of respective elements.