Method for the production of 5-series alloy compounds with controlled dimensions

By optimizing the composition and process flow of 5A06 alloy and controlling the size of the internal compounds in the ingot, the problem of non-compliance in the flaw detection of large-size ingots was solved, thereby improving production efficiency and stabilizing product quality.

CN117626070BActive Publication Date: 2026-06-19NORTHEAST LIGHT ALLOY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEAST LIGHT ALLOY CO LTD
Filing Date
2023-10-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The excessively large internal compound size of the 5A06 alloy large-size ingot leads to problems such as unqualified flaw detection, repeated feeding, and ineffective production capacity.

Method used

By optimizing the alloy composition and reducing the Ti content to 0.02%–0.04%, combined with refining gas treatment, the use of degassing boxes and filters, soaking heat treatment, and milling treatment, the size of compounds in the internal structure of the ingot is controlled, and the smelting process is improved to enhance the quality of the melt.

Benefits of technology

It effectively reduces the formation of large compounds inside the ingot, ensures that the flaw detection is qualified, solves the problems of repeated feeding and wasted production capacity, and shortens the production cycle.

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Abstract

A manufacturing method for controlling the size of 5-series alloy compounds. This method solves the problems of substandard flaw detection quality, repeated material feeding, and ineffective capacity utilization associated with existing 5A06 alloy large-size ingots. The method involves: 1. Weighing and melting raw materials according to the elemental composition (Mn, Mg, Ti, and balance Al) to obtain an aluminum alloy melt; 2. Refining the aluminum alloy melt, followed by purification through a degassing box and filter to obtain a purified aluminum alloy melt; 3. Casting to obtain an aluminum alloy ingot, which undergoes homogenization and milling to obtain a large-size 5A06 alloy ingot. This invention breaks through the original alloy composition control requirements, reduces the content of alloy chemical elements, reduces the formation of large compounds within the ingot structure, establishes a defined smelting process, improves the quality of the produced ingot melt, solves the problems of repeated material feeding and ineffective capacity utilization caused by substandard flaw detection, and ensures that subsequent products pass flaw detection testing.
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