A method for adjusting the titanium content in aluminum-silicon alloy melt

By adding boron-containing compounds to the aluminum-silicon alloy melt and carrying out reasonable process control, the Ti element reacts with boron, which solves the problem of excessive Ti element content in the aluminum-silicon alloy melt, and improves the mechanical properties and brazing properties of the alloy.

CN116287799BActive Publication Date: 2025-03-18ORDOS MENGTAI ALUMINUM CO LTD +1
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Patent Information

Application Number
CN202310088205.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-09
Publication Date
2025-03-18
Estimated Expiration
2043-02-09

AI Technical Summary

Technical Problem

In the aluminum-silicon alloy melt produced by molten salt electroeutectomy, the Ti element content often exceeds the standard, resulting in a decrease in the plastic toughness, fluidity and shrinkage capacity of the alloy, and a decrease in the brazing performance of the material.

Method used

By adding boron-containing compounds to the aluminum-silicon alloy melt and carrying out reasonable smelting and refining processes, the Ti element reacts with boron to form a boron-containing metal compound, thereby reducing the content of Ti element.

Benefits of technology

It effectively reduces the Ti element content in the aluminum-silicon alloy melt, improves the mechanical properties and brazing properties of the alloy, and meets the composition requirements of each grade of cast aluminum alloy.

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Abstract

The present invention belongs to the technical field of aluminum-silicon alloy melting and casting, and relates to a method for adjusting the titanium content in an aluminum-silicon alloy melt, which comprises the following steps: 1) preparing an aluminum-silicon alloy melt into an aluminum-silicon alloy liquid; 2) adding a boron-containing compound to the aluminum-silicon alloy liquid and smelting it; 3) adding a refining agent and a refining gas after smelting to perform refining; 4) performing slag removal after refining; 5) performing temperature-controlled standing after slag removal; 6) performing casting after temperature-controlled standing, wherein filtering is performed during the casting process. The method can effectively reduce the titanium content in the aluminum-silicon alloy melt, and the average titanium reduction efficiency reaches 75%.
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