Ingot casting blank for high-performance aluminum-magnesium alloy welding wire material and preparation method of ingot casting blank

By preparing aluminum-magnesium alloy ingot billets containing specific elements, the problem of insufficient oxidation easiness and strength of aluminum-magnesium alloy welding wire materials at high temperatures is solved, and better welding performance, corrosion resistance and impact strength are achieved, meeting the durability needs of aviation, shipbuilding and other industries.

CN119710389APending Publication Date: 2025-03-28NORTHEAST LIGHT ALLOY CO LTD
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Patent Information

Application Number
CN202411972958.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing aluminum-magnesium alloy wire materials are easy to oxidize at high temperatures, and the strength and toughness of the parts after welding are insufficient, making it difficult to meet the demand for the durability of welded joints in the aviation, shipbuilding and other industries.

Method used

A high-performance aluminum-magnesium alloy welding wire material ingot billet is used, which contains a aluminum-magnesium alloy with a specific element ratio, and is prepared through steps such as batching, smelting, casting and homogenizing annealing. Zr and Ti elements are reasonably added to improve grain refinement and anti-oxidation properties.

Benefits of technology

It significantly improves the welding performance, corrosion resistance and impact strength of aluminum-magnesium alloy wire materials, enhances the durability and welding properties of parts, and meets the application needs in high temperature environments.

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Abstract

The invention discloses a cast ingot blank for a high-performance aluminum-magnesium alloy welding wire material and a preparation method thereof, and relates to the technical field of welding wire material preparation. Compared with a traditional aluminum-magnesium alloy bar, the prepared ingot casting blank for the high-performance aluminum-magnesium alloy welding wire material has the advantages that the Zr element and the Ti element are reasonably added, so that the Zr element can achieve the effects of grain refinement, recrystallization inhibition, solid solution strengthening and the like, and meanwhile the high-performance aluminum-magnesium alloy welding wire material is obtained. And the influence of a primary thick erbium-containing phase on a finished bar is also avoided in a cast structure, so that the aluminum-magnesium welding wire material not only has normal-temperature and low-temperature mechanical properties and damage tolerance of a traditional aluminum-magnesium alloy, but also has more excellent welding performance and corrosion resistance. And when Zr and Mn exist together, the impact strength of the alloy can be remarkably improved, and the weldability of the aluminum-magnesium alloy is effectively improved.
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