公开(公告)号：US20230010470A1

公开(公告)日：2023-01-12

申请号：US17783295

申请日：2020-10-28

Applicant: KOLON INDUSTRIES, INC.

Inventor： Yong Hwan JI ,  Kyoung Hwa KIM ,  Mi So LIM ,  Shin KIM ,  Won Kyu SUH ,  Su Min KIM

IPC: B22F9/08

Abstract: An apparatus for manufacturing metal powder according to the present invention is a metal powder manufacturing apparatus, in which molten metal is broken up, and liquid droplets of the atomized molten metal are cooled by spraying cooling water using a cooling water spraying nozzle provided inside a chamber. The cooling water spraying nozzle is provided such that cooling water is sprayed in a fan shape, and cooling water spraying nozzles provided at different heights have increasing angles of inclination with respect to the inner wall of the chamber as the heights thereof are reduced, thereby decreasing a deviation between flying distances of the molten metal liquid droplets to efficiently manufacture metal powder having uniform properties.

公开(公告)号：US20230055049A1

公开(公告)日：2023-02-23

申请号：US17758647

申请日：2021-01-15

Applicant: KOLON INDUSTRIES, INC.

Inventor： Su Min KIM ,  Choongnyun Paul KIM

IPC: H02K1/02 ,  H02K5/04 ,  H02K1/12 ,  H02K1/22 ,  C22C38/02 ,  C22C38/16 ,  C22C38/00

Abstract: A soft magnetic core of an inductor or a motor core includes an alloy having a composition of Fe, Si, B, P, Cu, and Y, and the soft magnetic core or the motor core has a composite structure in which crystal grains including Fe are dispersed in an amorphous phase. Also, the alloy is expressed by the compositional formula FeaSibBcPdCueYfCg, wherein a to g satisfy 80≤a≤87, 0≤b≤9, 3≤c≤14, 1≤d≤8, 0.2≤e≤2.5, 0≤f≤3.0, 0≤g≤4.0, and 0≤(e/f)≤4 in terms of atomic percentage value.