Aluminum alloy composite material and method for manufacturing the same

By designing a multi-layer aluminum alloy composite material, including a core layer and an intermediate layer composed of specific elements, and combining heat treatment and rolling processes, the problem of insufficient mechanical properties of aluminum alloy water-cooled plates after high-temperature brazing was solved, realizing high-strength and corrosion-resistant aluminum alloy brazed parts, which are suitable for water-cooled plates of power batteries for new energy vehicles.

CN122428183APending Publication Date: 2026-07-21GRANGES ALUMINUM SHANGHAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GRANGES ALUMINUM SHANGHAI CO LTD
Filing Date
2026-04-21
Publication Date
2026-07-21

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Abstract

The application relates to an aluminum alloy composite material, which comprises a core material layer, at least one intermediate layer and an optional brazing layer, the core material layer comprising Si, Fe, Cu, Mg, Mn, Ni, Zn, Al and one, two or three of Cr, Ti and Zr, wherein the content of Si is 0.1-0.6% by weight, the content of Fe is 0.2-0.7% by weight, the total content of Cu and Mg is 1.2-3.3% by weight, and the weight ratio of Cu to Mg is 0.6-5; the total content of Cu and Mn is 1.2-3.3% by weight, and the weight ratio of Cu to Mn is 1-3; the content of Ni is 0.03-0.5% by weight; the content of Zn is 0.05-0.5% by weight; the content of each of Cr, Ti and Zr is less than 0.05% by weight, and the total content of Cr, Ti and Zr is less than 0.1% by weight, and wherein the number density of dispersed phases in the core material layer after brazing is 1x10 4 -5x10 4 mm-3 2 . The aluminum alloy composite material has excellent mechanical properties and corrosion resistance.
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Patent Citations

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