层叠造型用粉末以及金属烧结体的制造方法
By setting a film on the surface of metal powder particles and controlling the carbon concentration of coupling agent compounds within a specific range, the problems of filling rate and mechanical strength in the binder spraying method are solved, and the manufacturing of metal sintered bodies with high filling rate and high precision is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SEIKO EPSON CORP
- Filing Date
- 2023-01-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies in adhesive spraying methods struggle to improve the filling rate and filling properties of metal powder without reducing the mechanical strength of the three-dimensional object, leading to a decrease in the dimensional accuracy of the object.
A coating is formed on the surface of metal powder particles, containing a coupling agent compound derived from reactive functional groups. The carbon concentration of the coating is controlled to be above 0.02A% and below 0.30A%. The powder layer and the adhesive layer are formed by adhesive spraying, followed by sintering.
It improves the filling rate of metal powder and the mechanical strength of the three-dimensional object, while reducing the volume shrinkage rate and improving the dimensional accuracy of the three-dimensional object.
Smart Images
Figure CN116511490B_ABST