A hot-pressing and rolling forming method for metal layered composite plate

By combining low-temperature hot pressing and high-temperature rolling, and using a three-dimensional array protruding mold to increase the interface contact area and coordinate metal deformation, the problems of interface oxidation and low bonding strength of aluminum/magnesium/aluminum layered composite plates were solved, and the stable preparation of three-layer and above metal layered composite plates was achieved.

CN122400296APending Publication Date: 2026-07-17CHANGZHI MEDICAL COLLEGE
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Patent Information

Application Number
CN202610715400.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing rolling composite processes for preparing aluminum/magnesium/aluminum layered metal composite plates suffer from problems such as deformation incoordination due to the difference in properties between magnesium and aluminum, small interfacial deformation, interfacial oxidation, and low bonding strength. In particular, it is difficult to prepare three-layer or higher layered metal composite plates.

Method used

A method combining low-temperature hot pressing and high-temperature rolling is adopted. The aluminum/magnesium/aluminum layered composite slab is preheated and hot rolled using a hot pressing die with a three-dimensional array of protrusions on its surface. The three-dimensional protrusion array structure increases the interface contact area, coordinates metal deformation, avoids interface oxidation, and improves the bonding strength.

Benefits of technology

It effectively solved the problem of interface oxidation during high-temperature rolling, improved the interfacial bonding strength and overall performance of aluminum/magnesium/aluminum layered composite plates, and achieved stable preparation of three-layer and above metal layered composite plates.

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Abstract

本发明属于金属层状复合板制备技术领域,尤其涉及一种金属层状复合板热压‑轧制成形方法,包括制备铝 / 镁 / 铝组装板坯;对铝 / 镁 / 铝组装板坯在保护气氛下预热,随后通过热压机和表面带有三维凸起阵列结构的热压模具进行低温热压,得到热压后的铝 / 镁 / 铝层状复合板坯;将热压后的铝 / 镁 / 铝层状复合板坯加热至预设温度后,通过热轧机轧制得到铝 / 镁 / 铝层状复合板;对铝 / 镁 / 铝层状复合板整形。本发明先利用表面带有三维阵列凸起的热压模具对铝 / 镁 / 铝组装板坯进行低温热压实现初步冶金结合,再通过热轧完成最终复合,有效解决了铝 / 镁 / 铝层状复合板轧制过程中组元金属变形不协调、界面易氧化和结合强度低的问题。
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