Polymer-based spherical powder preparation device and preparation process
US11702522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 18, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polymer-based spherical powder preparation device and preparation process are disclosed. The preparation device comprises a mill milling system and an inductively coupled plasma powder spheroidization system. The mill milling system of the preparation device can achieve ultra-fine grinding of the material at room temperature by applying strong extrusion, shear and circumferential stress to the material; and the inductively coupled plasma powder spheroidization system using high temperature plasma as high temperature heat source, the polymer powder can be heated uniformly, and the melting and cooling rate is fast, so the spheroidization can be completed in a short time. The preparation process of polymer based spherical powder was integrated and continuously produced by the preparation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.