Apparatus and method for preparing spherical metal powder based on one-by-one atomization method for uniform droplets

US11344950B2 · kind B2 · utility

Assignees

• Xiaoming Wang · CN
• Yang Zhao · CN
• Qing Chang · CN
• Zhiqiang Ren · CN
• Sheng Zhu · CN
• Wenyu Wang · CN
• Jing Shi · CN
• Guofeng Han · CN
• Tao Teng · CN
• Dongyang Wang · CN
• Zhanwu Peng · CN
• Zhiyong Qin · CN
• Dalian University of Technology · CN

Inventors

• Xiaoming Wang · Sunnyvale, US
• Yang Zhao · North Andover, US
• Qing Chang · Iowa City, US
• Wei Shan Dong · Beijing, CN
• Fumin Xu · 东风镇, CN
• Zhiqiang Ren · Beijing, CN
• Sheng Zhu · Beijing, CN
• Wenyu Wang · Beijing, CN
• Jing Shi · Beijing, CN
• Guofeng Han · Beijing, CN
• Tao Teng · Beijing, CN
• Yao Meng · Sunnyvale, US
• Zhaofeng Bai · 东风镇, CN
• Yanyang Wang · Qingdao, CN
• Yang Han · Sunnyvale, US
• Guobin Li · Glückstadt, DE
• Dongyang Wang · Belmont, US
• Zhanwu Peng · Beijing, CN
• Zhiyong Qin · Beijing, CN

Key dates

• Filing date: Sep 25, 2019
• Grant date: May 31, 2022
• Expiry date: Sep 25, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F2999/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An apparatus includes a housing, a crucible disposed in the housing, and a collection bin. A turnplate disposed in a powder collection area is of an inlaid structure. A concentric circular groove is provided on the atomization plane. An air hole is provided in the turnplate. The present invention combines the pulsated orifice ejection method and the centrifugal atomization method, in cooperation with the turnplate structure and subjecting the turnplate surface to induction heating, so that a metal liquid is allowed to break through the split mode of traditional molten metal, achieves a fibrous split mode that can be implemented only when an atomizing medium is an aqueous or organic solution, and prepares a high-melting-point metal powder that meets requirements, and has a controllable particle size, high sphericity, no satellite droplets, and good flowability and spreadability, and is suitable for industrial production.