A warm forming process for composite panel end closures which inhibits the formation of interfacial brittle phases
By implementing asymmetric gradient heating and reverse temperature field control in the heating furnace and forming mold, combined with real-time monitoring and dynamic compensation, the problems of edge brittleness and center overheating during the hot pressing of composite plate heads were solved, achieving high-quality forming and stability of the heads.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 河南九天封头制造有限公司
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
During the hot pressing process of composite plate end caps, the edges of the material are prone to cold brittle cracking, and the central area is prone to overheating, leading to the formation of brittle phases at the interface, which affects the service life and performance of the end cap.
By dividing the edge and center areas of the heating furnace into independent temperature control zones, adopting an asymmetric gradient heating strategy, and combining the reverse temperature field of the forming mold with a dynamic temperature compensation mechanism, the temperature distribution of the workpiece is monitored and adjusted in real time. Precise control is achieved using an infrared thermal imager and a reverse heat conduction algorithm, prioritizing the prevention of edge cracking and suppressing overheating in the center.
It effectively inhibits the formation of brittle phases at the interface, improves the forming quality and service life of the end cap, and ensures the stability and corrosion resistance of the end cap under high pressure and high temperature environments.
Smart Images
Figure CN122400451A_ABST