A kind of hot-compression composite method of aluminum-magnesium sandwich composite board

Abstract

The invention discloses a hot pressing compounding method for an aluminum-magnesium sandwich composite board. The method comprises: respectively carrying out surface treatment on an aluminum alloy sheet and a magnesium alloy sheet, neatly stacking the magnesium alloy sheets as core layers and the aluminum alloy sheets as interlayers, fixing the stacked layers in a hot pressing device, carrying outhot pressing compounding comprising room temperature pre-pressing and high-temperature hot pressing and carrying out cooling along with keeping the pressure. The hot pressing compounding method realizes fast combination of aluminum and magnesium sheets with equal thickness and can acquire an aluminum-magnesium sandwich composite board with excellent mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a hot-compression composite method for an aluminum-magnesium sandwich composite board. Background technique [0002] As the mechanical properties of aluminum-magnesium alloys have been greatly improved, they have gradually replaced traditional structural steel materials, and while meeting the mechanical properties, they have greatly reduced their weight, and achieved the lightweight requirements of energy saving, emission reduction, and environmental protection. In addition to the characteristics of light weight and good performance of aluminum and magnesium, aluminum-magnesium composite panels can also achieve excellent mechanical properties of composite panels. The traditional preparation process of aluminum-magnesium-aluminum composite plate includes explosive welding, diffusion welding and rolling process, among which: explosive welding uses expl...

AI Technical Summary

Problems solved by technology

The existing hot-pressing preparation process is developed on the basis of brazing, such as adding zinc powder solder between the interface of the aluminum-magnesium composite plate or coating the surface of the aluminum-magnesium alloy plate for hot-pressing bonding, through the interface powder or The melting and diffusion of the coating realize the connection of the composite board, which is an indirect aluminum / magnesium / aluminum connection form, which is essentially a combination of aluminum / powder (coating) / magnesium / powder (coating) / aluminum, which not only increases production costs , and extend the production cycle

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