A brazing aluminum alloy composite material and a method for manufacturing the same

CN121551553BActive Publication Date: 2026-06-26SHANGHAI SAXIN DONGTAI HEAT TRANSFER MATERIAL CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: SHANGHAI SAXIN DONGTAI HEAT TRANSFER MATERIAL CO LTD
Filing Date: 2025-11-28
Publication Date: 2026-06-26

AI Technical Summary

Technical Problem

In the current production of aluminum alloy composite materials, it is difficult to effectively combine the solid coating layer and the liquid core material, and the interface erosion phenomenon is difficult to suppress. Traditional process control lacks real-time monitoring and optimization methods, resulting in unstable interface bonding quality and large fluctuations in product quality.

Method used

A liquid-solid casting-rolling composite process is adopted. The temperature of the core material solution, the casting and rolling speed and the cooling water flow rate are optimized in synergistically through model predictive control. The interface bonding quality is monitored in real time by combining sensor network and ultrasonic flaw detection system. A state space model is constructed for rolling optimization control to ensure the metallurgical bonding quality of the interface.

Benefits of technology

This achieves stability in interface bonding quality and reliability in production, significantly improves product consistency and production efficiency, reduces the occurrence of melting defects, and ensures high strength and thermal conductivity of composite materials in subsequent processing.

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Abstract

The application provides a brazing aluminum alloy composite material and a preparation method thereof, and steps of the method comprise the following: preparing a solid-state cladding layer tape roll and a core material alloy solution; liquid-solid casting and rolling compounding: the core material alloy solution is injected into a front box of a double-roller casting and rolling machine, and the solid-state cladding layer tape roll is attached to the surface of a casting and rolling roller, is synchronously introduced into the roller gap area of the casting and rolling machine, and the temperature of the core material solution in the front box, the casting and rolling speed and the cooling water flow are dynamically adjusted according to a model prediction control method, so that the liquid core material alloy and the solid-state cladding layer tape roll on both sides realize metallurgical combination under the cooling and pressure of the roller gap, and a layered composite material blank is prepared. The application solves the technical problems that the solid-state cladding layer and the liquid core material are difficult to effectively compound, the interface corrosion phenomenon is difficult to inhibit and the traditional process control is difficult to cope with parameter fluctuation in the process of preparing the aluminum alloy layered composite material through liquid-solid casting and rolling compounding.

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