A fiber-reinforced foam core material, composite material, its manufacturing method and application

CN122080593APending Publication Date: 2026-05-26中威航空材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中威航空材料有限公司
Filing Date
2026-03-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional foam core materials have systemic bottlenecks in terms of mechanical properties, interfacial bonding, process adaptability and venting efficiency. In particular, they are prone to local crushing or core column breakage under high load conditions, interfacial bonding is prone to debonding and delamination, resin injection efficiency is low and venting path is lacking.

Method used

By combining a three-dimensional fiber-reinforced network with a vacuum negative pressure-driven infusion process, continuous resin flow channels and exhaust channels are formed by multi-angle cross-winding of fibers, ensuring uniform resin penetration and effective gas discharge, thereby improving interfacial bonding strength and structural density.

Benefits of technology

It significantly improves the mechanical properties of composite materials, reduces porosity, prevents delamination, achieves uniform resin flow and optimized venting efficiency, and improves product performance and production yield.

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Abstract

This invention provides a fiber-reinforced foam core material, a composite material, a manufacturing method thereof, and its applications. The fiber-reinforced foam core material includes a foam core material and a reinforcing fiber layer. The reinforcing fiber layer is formed by fibers interlacing at multiple preset angles on the surface of the foam core material to form a three-dimensional fiber reinforcement network. This achieves a multi-functional synergistic integration of improved mechanical properties, delamination suppression, resin flow channel construction, and optimized exhaust efficiency, which is significantly superior to traditional foam core material structures. While significantly improving product performance, it also lays the foundation for yield optimization in large-scale production.
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