A special green silicon carbide micro-powder shaping and modifying integrated process for additive manufacturing
By integrating the shaping and modification process of green silicon carbide micro powder, the problem of unstable surface state of powder particles is solved, and stable spreading and interlayer consistency of powder are achieved in additive manufacturing. This process is suitable for binder-sprayed powder bed additive manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGZHOU HENGTAI MICROPOWDER CO LTD
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the shaping and modification processes of green silicon carbide micropowder are separated, resulting in unstable particle surface conditions and difficulty in controlling powder accumulation and interlayer consistency. This is especially true in binder-sprayed powder bed additive manufacturing, where the powder spreading performance and interlayer consistency are difficult to guarantee.
An integrated process for shaping and modifying green silicon carbide micropowder for additive manufacturing is adopted. The main powder is selectively shaped through a closed-loop shaping circuit connected by an airflow classification unit, and surface activation treatment is carried out in a closed transport channel to form hydroxyl-containing activation sites. Then, inner and outer anchoring layers and functional layers are constructed on the surface of the shaped main powder, and finally it is compounded with satellite powder to form stable main powder-satellite powder composite particles.
This invention integrates the shaping and modification processes of green silicon carbide micropowder, ensuring the stability of particle surface state and interlayer consistency of composite powder, and improving the spreading performance and interlayer consistency of powder in binder-sprayed powder bed additive manufacturing.
Smart Images
Figure CN122404002A_ABST