US 11,919,073 B2
Apparatus and method for manufacturing iron-based mixed powder
Hyung Seok Kwak, Gunpo-si (KR); Jin Woo Kim, Dangjin-si (KR); Joon Chul Yun, Incheon (KR); and Hyun Gon Lyu, Hwaseong-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Feb. 16, 2022, as Appl. No. 17/673,566.
Claims priority of application No. 10-2021-0077451 (KR), filed on Jun. 15, 2021.
Prior Publication US 2022/0395902 A1, Dec. 15, 2022
Int. Cl. B22F 1/14 (2022.01); B22F 1/10 (2022.01)
CPC B22F 1/14 (2022.01) [B22F 1/10 (2022.01); B22F 2202/05 (2013.01); B22F 2301/35 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An apparatus for manufacturing iron-based mixed powder, the apparatus comprising:
a hopper which provides a space for storing a main raw material of iron-based powder and discharges the main raw material of iron-based powder;
a transport means which transports the main raw material of iron-based powder discharged from the hopper;
a magnetizing means that applies magnetic force to the main raw material of iron-based powder transported and falling from the transport means to process the main raw material of iron-based powder into a main raw material bundle in a crumbly type in which the main raw material of iron-based powder is agglomerated with each other;
a first mixer in which the main raw material bundle in a state of magnetization and an auxiliary raw material of iron-based powder are loaded and mixed while being rotated and transported; and
a second mixer in which a first iron-based mixed powder mixed in the first mixer is loaded, the first iron-based mixed powder being mixed while being rotated and transported,
wherein the magnetizing means includes a drum feeder which is provided rotatably on a lower side of the second side of the transport means, and to which magnetic force is applied so that the main raw material of iron-based powder is brought into contact with an outer surface of the drum feeder and aggregated with each other by magnetic force,
wherein the magnetic force applied to the drum feeder is 0.95-1.15 Kgauss,
wherein a rotation speed of the drum feeder is maintained at 70-90 RPM,
wherein the magnetizing means includes a knife disposed on a lower side of the drum feeder to separate from the drum feeder the main raw material bundle attached to the outer surface of the drum feeder in an aggregated state by the magnetic force, and
wherein the knife is formed of a ceramic material.