A profiled vacuum bag for a profiled die
By designing irregularly shaped vacuum bags that match the mold cavity, the sealing and vacuum retention problems of traditional vacuum bags on irregularly shaped molds are solved, enabling high-quality molding and efficient use of composite materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LEADGO TECH
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional vacuum bags are difficult to adapt to the complex shapes of irregular molds, resulting in insufficient sealing performance and failure to meet the requirements of gas sealing and vacuum maintenance, thus affecting the molding quality of composite materials.
An irregularly shaped vacuum bag was designed, the cross-sectional shape of which matches the mold cavity. It includes a convex main structure and uses ETFE and nylon layer materials to ensure that the bag body fits tightly against the mold surface, providing high-strength sealing and wear resistance, avoiding wrinkles or suspension, and achieving uniform pressure application.
It achieves precise fitting of irregular molds, eliminates air bubbles and voids, improves molding quality and density, extends service life, and reduces post-processing steps.
Smart Images
Figure CN224391980U_ABST