Other

Dalian University of Technology

Baidu Online Network Technology (beijing) Co., Ltd.

Guofeng Han

Wei Shan Dong

Yang Zhao

Sheng Zhu

Xiaoming Wang

Jing Shi

Qing Chang

Wenyu Wang

Zhiyong Qin

Tao Teng

Yao Meng

Zhaofeng Bai

Yanyang Wang

Fumin Xu

Yang Han

Guobin Li

Zhiqiang Ren

Yu Sun

Wei Dong

Weifeng Huang

Dongyang Wang

Lingzhi Xu

Keke Zhou

Zhanwu Peng

Huiping Wang

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&#xb0; 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.

Device and method for high-efficiency preparation of spherical metal powder for 3D printing employing separation into fibers

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.

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

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.

Apparatus and method for efficiently preparing ultrafine spherical metal powder by one-by-one droplets centrifugal atomization method

A method and apparatus for account intercommunication among APPs. The method comprises: acquiring account information entered by a user in a current APP; and, after using the account information to log in successfully, providing the account information to other APPs having intercommunication permissions with the current APP for the other APPs to log in. Via the disclosed method, account information entered in any APP may be shared among APPs having intercommunication permissions with the APP, so that other APPs may be logged into using an intercommunicated account after they are opened, without the need to manage account information about various APPs through a unified entrance, and thus the APP need not access the entrance in advance, and login can be realized without the need to exit the APP to open the entrance; obviously, the flexibility and independence of APP login are improved, and the complexity of operation is reduced.

Method and apparatus for account intercommunication among APPs

Growing community of inventors

Beijing, China

Guofeng Han