The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Dec. 19, 2019
Shenzhen Aerospace Science Advanced Materials Co., Ltd, Guangdong, CN;
SHENZHEN AEROSPACE SCIENCE ADVANCED MATERIALS CO., LTD, Guangdong, CN;
Abstract
Disclosed is a spherical powder, and a preparation method therefor including: placing an electrode and a workpiece at two electrodes of a power supply, adjusting a discharging gap between the electrode and workpiece by a motion control system to generate an arc plasma, when arc plasma acts on surfaces of the electrode and workpiece, the surfaces of the electrode and workpiece are melt to form a melting region, at the same time, introducing a fluid medium into the discharging gap, controlling a flow rate of the fluid medium and a relative rotation speed of the electrode or the workpiece, so as to change a working morphology of the arc plasma, such that a tiny explosion is generated in the melting region, crushing and throwing away a material located in the melting region, condensing the crushed molten material in the fluid medium and collecting a condensed fine spherical powder.