Alloy material, bonded magnet, and modification method of rare-earth permanent magnetic powder

US10811175B2 · kind B2 · utility

Assignee

• GRIREM ADVANCED MATERIALS CO., LTD. · CN

Inventors

• Yang Luo · Amherst, US
• Chao Yuan · Plainsboro, US
• Kuo Men · Beijing, CN
• Ningtao Quan · Beijing, CN
• Hongbin Zhang · College Station, US
• Wenlong Yan · Beijing, CN
• Dunbo Yu · Beijing, CN
• Yuanfei Yang · Beijing, CN

Key dates

• Filing date: Oct 27, 2017
• Grant date: Oct 20, 2020
• Expiry date: Oct 18, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C2202/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An alloy material, a bonded magnet, and a modification method of a rare-earth permanent magnetic powder are provided by the present application. A melting point of the alloy material is lower than 600° C. and a composition of the alloy material by an atomic part is RE100-x-yMxNy, wherein RE is one or more of non-heavy rare-earth Nd, Pr, Sm, La and Ce, M is one or more of Cu, Al, Zn and Mg, N is one or more of Ga, In and Sn, x=10-35 and y=1-15.