Partitioned pressurization control method and system for compression molding of carbon fiber prepreg and molding process

Through partition pressurization control method and intelligent sensing monitoring, the problems of uneven pressure distribution and volatile components retention in traditional carbon fiber prepreg molding are solved, and efficient and accurate molding is achieved, which improves the mechanical properties and molding quality of composite materials.

CN120396388AInactive Publication Date: 2025-08-01CHENGDU ZHENGXI INTELLIGENT EQUIPMENT GROUP CO LTD
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Patent Information

Application Number
CN202510913831.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-08-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional carbon fiber prepreg molding technology has problems such as uneven pressure distribution, limited level of volatile components retention, pore formation and process control intelligence, and it is difficult to adapt to the molding needs of complex mold mold surfaces and asymmetric components, which affects the mechanical properties and molding efficiency of the product.

Method used

The partition pressurization control method is adopted, and through intelligent sensing, multi-channel hydraulic control and data-driven optimization algorithm, precise control of partition pressure and directional discharge of volatile components are achieved. Combined with PID algorithm and real-time monitoring of thermocouples, pressure and temperature are dynamically adjusted, and molding process parameters are optimized.

Benefits of technology

It realizes precise control of zoning pressure and efficient discharge of volatile components, improves the molding quality and efficiency of composite materials, and meets the molding needs of high-performance carbon fiber composite materials.

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Abstract

The invention relates to the technical field of compression molding of carbon fiber prepregs, in particular to a partitioned pressurization control method and system for compression molding of the carbon fiber prepregs and a molding process. S2, initial pressure calculation; s3, gradient pressurization control; s4, dynamic pressure adjustment; and S5, a global pressure maintaining stage: when the resin curing degree alpha reaches 0.6-0.8, switching to a full-screen pressure maintaining mode, and maintaining the pressure of each region to be 90%-95% of the current maximum pressure value until curing is completed. The invention provides a zoning pressurization control method and system for compression molding of carbon fiber prepreg and a molding process, and realizes the compression molding method and system with accurate zoning pressure regulation and control and directional discharge of volatile components. And by integrating intelligent sensing, multi-channel hydraulic control and a data driving optimization algorithm, the limitation of a traditional process is broken through, and a technical support is provided for efficient forming of the high-performance carbon fiber composite material.
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