Preparation method of high-strength and high-conductivity aluminum alloy profile

By combining low-temperature extrusion and deformation aging treatment with the use of rare earth elements, the problem of balancing strength and conductivity in aluminum alloy conductive rail profiles in existing technologies has been solved, and the preparation of aluminum alloy profiles with high strength and high conductivity has been achieved.

CN121295052APending Publication Date: 2026-01-09BINZHOU WEIQIAO NATIONAL SCIENCE & TECHNOLOGY ADVANCED TECHNOLOGY RESEARCH INSTITUTE +2
0 Cites 1 Cited by

Patent Information

Application Number
CN202511522696.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing technologies cannot simultaneously improve the strength and conductivity of aluminum alloy conductive rail profiles, and existing production processes limit the ability to achieve a combination of high strength and high conductivity.

Method used

By employing low-temperature extrusion technology combined with deformation aging treatment, the dispersion precipitation of Mg and Si elements is promoted through solution treatment, low-temperature extrusion, and aging treatment. Combined with the use of rare earth elements La and Ce, regular inclusion phases are formed, which improves the electrical conductivity of the alloy.

Benefits of technology

It significantly improves the strength and conductivity of aluminum alloy profiles, achieving a combination of high strength and high conductivity, and enhancing the overall performance of aluminum alloy profiles.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a preparation method of a high-strength and high-conductivity aluminum alloy profile, which comprises the following steps: 1) carrying out solution treatment on an aluminum alloy raw material to obtain a supersaturated solid solution; (2) the supersaturated solid solution is subjected to low-temperature extrusion treatment, and the aluminum alloy profile is obtained; and thirdly, the aluminum alloy profile is heated, and the high-strength and high-conductivity aluminum alloy profile is obtained. According to the method, hot extrusion is replaced by low-temperature extrusion, so that the aluminum alloy profile generates a remarkable cold hardening effect, the strength of the alloy is greatly improved, meanwhile, severe plastic deformation at the extrusion temperature generates a large number of intragranular dislocations, Mg and Si elements are promoted to be quickly and fully dispersed and separated out, the alloy generates a precipitation strengthening effect, and the conductivity is improved.
Need to check novelty before this filing date? Find Prior Art