Aerospace aluminum alloy retrogression and reageing heat treatment system and method

By designing a multi-stage re-aging heat treatment system and a quenching system, the problems of insufficient strength, toughness and fatigue performance in the existing heat treatment of aerospace aluminum alloys have been solved, realizing efficient and uniform heat treatment of aluminum alloy materials and improving the comprehensive performance of aluminum alloys.

CN116695032BActive Publication Date: 2026-06-12GUANGXI NANNAN ALUMINUM PROCESSING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI NANNAN ALUMINUM PROCESSING CO LTD
Filing Date
2023-04-13
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing heat treatment processes for aerospace aluminum alloys are difficult to improve strength, fracture toughness, corrosion resistance, and fatigue resistance simultaneously, and industrial production suffers from problems such as inconvenient equipment relocation and uneven cooling.

⚗Method used

A multi-stage re-aging heat treatment system is adopted, combined with a hot deformation processing and quenching system. The multi-stage aging heat treatment is completed in a heat treatment furnace through low-temperature air high-pressure quenching. A continuous re-aging process is designed. The quenching system uses liquid nitrogen and dry ice as cooling media to form low-temperature air, so as to achieve uniform cooling of aluminum alloy materials.

🎯Benefits of technology

It significantly improves the strength, toughness, and fatigue performance of aluminum alloys, solves the problems of inconvenient equipment transfer and uneven cooling, and achieves efficient and uniform heat treatment of aluminum alloy materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of aluminum alloy heat treatment, and particularly relates to a regression and re-aging heat treatment system for aluminum alloy used in aerospace, which comprises a quenching system, wherein the quenching system comprises an axial flow fan, a pressure container, an injector, a first circulating air duct, a second circulating air duct, a first guide plate, a second guide plate, a plate support partition, and an air outlet. The regression and re-aging heat treatment system for aluminum alloy used in aerospace simultaneously designs a quenching system in the heat treatment system, realizes continuous regression and re-aging heat treatment, does not need to transfer materials, adopts cooling medium, i.e. cooling air, to obtain low-temperature air, makes the aluminum alloy material obtain sufficient cooling effect, can complete the whole multi-stage aging heat treatment process in one heat treatment furnace, and can synergistically improve the alloy strength, fracture toughness, corrosion resistance and fatigue resistance.
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