Method and equipment for manufacturing continuous fiber reinforced structural member

By using continuous fiber-reinforced resin materials for injection molding in the manufacturing of low-altitude aircraft structural parts, combined with preheating treatment, automated control and information traceability systems, the problem of difficulty in taking into account both lightweight and high strength in the prior art is solved, and the high performance and traceability of structural parts are achieved.

CN119704533AActive Publication Date: 2025-03-28KRAUSSMAFFEI MACHINERY ZHEJIANG CO LTD
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Patent Information

Application Number
CN202510223800.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2025-03-28
Estimated Expiration
2045-02-27

AI Technical Summary

Technical Problem

The existing mixing injection molding technology is difficult to take into account the dual requirements of lightweight and high strength in the manufacturing of low-altitude aircraft structural parts, and there are shortcomings in thermal process control of material processing, introduction and retention of continuous fibers, automation control, and product traceability.

Method used

The continuous fiber-reinforced resin material is used for injection molding. Through preheating treatment, designing the original material formula, mixing and injection molding, the control system collects and adjusts the fiber ratio in real time to ensure effective retention and uniform distribution of the fibers. At the same time, it integrates efficient extrusion and mixing mechanism, accurate injection molding mechanism, stable injection mold locking unit and advanced information traceability system to realize automated control and real-time acquisition of key data.

Benefits of technology

Effectively take into account the lightweight and high-strength requirements of structural parts, significantly improve the temperature, corrosion and impact resistance of the materials, ensure that structural parts show excellent performance in complex working environments, and improve the stability and traceability of product quality.

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Abstract

The invention relates to the technical field of structural part injection molding, in particular to a manufacturing method and equipment for a continuous fiber reinforced structural part, and aims to solve the problem that a structural part manufactured in the prior art cannot meet the requirements for light weight and high strength at the same time. Comprising the following steps: heating a thermoplastic composite material sheet and putting the thermoplastic composite material sheet into a mold; designing an original material formula, preparing materials according to the formula, and mixing the materials into a uniform melt; conveying and injection molding of melt materials are controlled through a reversing valve; the manufacturing data is associated with the product. The equipment comprises an extruding and mixing mechanism for melting, plasticizing and mixing each material in an original material formula, an injection molding mechanism for realizing the injection of a melt material, an injection molding machine mold locking unit for completing molding and curing, a control system for coordinating the whole process and an information tracing mechanism for ensuring the traceability of a product. The scheme is suitable for manufacturing functional parts with extremely high requirements on performance and safety in aerospace and automobile industries.
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