一种球形粉末的制备方法
By using a two-component mixture of powders with particle sizes of 5-25μm and 53-75μm for plasma spheroidization, the problems of cumbersome preparation process and low yield of high-entropy ceramic spherical powder in the prior art are solved, and efficient and low-cost preparation of spherical powder is achieved.
CN121292438BActive Publication Date: 2026-07-17NINGXIA ORIENT INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGXIA ORIENT INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
- Filing Date
- 2025-10-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies struggle to efficiently prepare 5-25 μm spherical powders, especially high-entropy ceramics such as (HfTaZrTiNb)C, due to cumbersome processes, high energy consumption, and low yields.
Method used
Plasma spheroidization is performed using a two-component mixture of powders with particle sizes of 5-25μm and 53-75μm, which avoids the remelting and breakage process of powders with a particle size of less than 25μm. The mixture improves fluidity, simplifies the process, and increases the yield.
Benefits of technology
It significantly improved the yield and flowability of spherical powder, simplified the preparation process, reduced costs, and obtained high-quality 5-25μm spherical powder.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121292438B_ABST
Abstract
本发明涉及一种球形粉末的制备方法。所述方法包括：1）提供原料；2）对原料进行破碎与筛分，获得粒径为5‑25μm的粉末（A）和53‑75μm的粉末（B），以及25μm<粒径<53μm的中间粉末（C）；3）将粉末（A）与粉末（B）按1:0.2‑1的比例混合，得到双组分混料；4）将来自步骤3）的双组分混料进行等离子球化步骤；和5）从等离子体球化后的粉末中分离出粒径<30μm的成品球形粉末。
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