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公开(公告)号：US11420257B2
公开(公告)日：2022-08-23
申请号：US17280127
申请日：2019-09-25
申请人： DALIAN UNIVERSITY OF TECHNOLOGY , Xiaoming Wang , Sheng Zhu , Yang Zhao , Wenyu Wang , Qing Chang , Zhiqiang Ren , Guofeng Han , Jing Shi , Tao Teng , Yu Sun , Zhiyong Qin
发明人： Wei Dong , Yao Meng , Sheng Zhu , Xiaoming Wang , Yang Zhao , Yanyang Wang , Fumin Xu , Zhaofeng Bai , Yang Han , Guobin Li , Wenyu Wang , Qing Chang , Zhiqiang Ren , Jing Shi , Guofeng Han , Tao Teng , Yu Sun , Zhiyong Qin
摘要： An apparatus for efficiently preparing spherical metal powder for 3D printing includes a housing, a crucible and a powder collection area arranged in the housing, wherein a turnplate arranged in the collection area is an inlaid structure. A material having a poor thermal conductivity is selected as the base of the turnplate, and a metal material having a wetting angle less than 90° with respect to droplets is selected and embedded into the base to serve as an atomization plane of the turnplate. An air hole is disposed in the turnplate. The spherical metal powder for 3D printing combines electromagnetic force breaking capillary jet flow and centrifugal atomization, which breaks through the traditional metal split mode, and makes the molten metal in a fibrous splitting.
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公开(公告)号：US11331724B2
公开(公告)日：2022-05-17
申请号：US17280025
申请日：2019-09-25
申请人： Xiaoming Wang , Yang Zhao , Wenyu Wang , Qing Chang , Zhiqiang Ren , Guofeng Han , Sheng Zhu , Jing Shi , Tao Teng , Yu Sun , Zhiyong Qin , DALIAN UNIVERSITY OF TECHNOLOGY
发明人： Xiaoming Wang , Yang Zhao , Wenyu Wang , Wei Dong , Yao Meng , Qing Chang , Zhiqiang Ren , Jing Shi , Guofeng Han , Sheng Zhu , Tao Teng , Fumin Xu , Zhaofeng Bai , Yanyang Wang , Yang Han , Guobin Li , Yu Sun , Zhiyong Qin
摘要： An apparatus efficiently preparing ultrafine spherical metal powder includes a housing, a crucible and a powder collection area arranged in the housing. The turnplate arranged in the powder collection area is an inlaid structure. The part inlaid into the body part acts as an atomization plane of the turnplate. The atomization plane is provided with a concentric circular groove, and the turnplate is provided with an air hole. The apparatus is used for preparing ultrafine spherical metal powder by on-by-one droplets centrifugal atomization method, mainly combining the uniform droplet jet method and the centrifugal atomization method, which breaks through the traditional metal splitting model, makes the molten metal in a fibrous splitting, so as to efficiently prepare ultrafine spherical metal powder with narrow particle size distribution interval, high sphericity, good flowability, excellent spreadability, uniform and controllable size, no satellite droplets and suitable for industrial production.
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公开(公告)号：US11344950B2
公开(公告)日：2022-05-31
申请号：US17280168
申请日：2019-09-25
申请人： Xiaoming Wang , Yang Zhao , Qing Chang , Zhiqiang Ren , Sheng Zhu , Wenyu Wang , Jing Shi , Guofeng Han , Tao Teng , Dongyang Wang , Zhanwu Peng , Zhiyong Qin , DALIAN UNIVERSITY OF TECHNOLOGY
发明人： Xiaoming Wang , Yang Zhao , Qing Chang , Wei Dong , Fumin Xu , Zhiqiang Ren , Sheng Zhu , Wenyu Wang , Jing Shi , Guofeng Han , Tao Teng , Yao Meng , Zhaofeng Bai , Yanyang Wang , Yang Han , Guobin Li , Dongyang Wang , Zhanwu Peng , Zhiyong Qin
摘要： 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.
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