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A method to avoid failure of 5052 aluminum alloy cold-rolled sheet strengthened with zirconium

A cold-rolled thin plate and aluminum alloy technology, which is applied in the field of avoiding the failure of 5052 aluminum alloy cold-rolled thin plate plus zirconium strengthening, can solve the problems of unsuitable Al-Mg alloys, etc., and achieve the effect of reducing production costs and consumption

Inactive Publication Date: 2018-06-29
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: It found that the strengthening law of Zr to Al-Zn-Mg-Cu alloy is increased with the increase of Zr content, but it is not applicable to Al-Mg alloys, especially 5052 aluminum alloy

Method used

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  • A method to avoid failure of 5052 aluminum alloy cold-rolled sheet strengthened with zirconium
  • A method to avoid failure of 5052 aluminum alloy cold-rolled sheet strengthened with zirconium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: A method for avoiding the failure of 5052 aluminum alloy cold-rolled thin plate adding zirconium strengthening, adding the constituent elements of 5052 alloy and zirconium in the form of intermediate alloy or salt into the melting furnace for melting, and the principle of feeding follows that the raw materials should be small first and then large , first easy to melt and then difficult to melt, first less burning loss and then easy burning loss, 5052 aluminum alloy is produced by melting and casting process, and then cold rolled to 0.5mm thick, in which the content of zirconium is 0.05%, and the 5052 aluminum alloy cold rolled sheet is tested The tensile strength is 371MPa.

Embodiment 2

[0012] Example 2: A method for avoiding the failure of 5052 aluminum alloy cold-rolled thin plate adding zirconium strengthening, adding the constituent elements of 5052 alloy and zirconium in the form of intermediate alloy or salt to the melting furnace for melting, and the principle of feeding follows that the raw materials should be small first and then large , first easy to melt and then difficult to melt, first less burning loss and then easy burning loss, 5052 aluminum alloy is produced by melting and casting process, and then cold rolled to 0.5mm thick, in which the content of zirconium is 0%, and the 5052 aluminum alloy cold rolled sheet is tested The tensile strength is 329MPa.

Embodiment 3

[0013] Example 3: A method for avoiding the failure of 5052 aluminum alloy cold-rolled thin plate adding zirconium strengthening, adding the constituent elements of 5052 alloy and zirconium in the form of intermediate alloy or salt to the melting furnace for melting, and the principle of feeding follows that the raw materials should be small first and then large , first easy to melt and then difficult to melt, first less burning loss and then easy burning loss, 5052 aluminum alloy is produced by melting and casting process, and then cold rolled to 0.5mm thick, in which the content of zirconium is 0.15%, and the 5052 aluminum alloy cold rolled sheet is tested The tensile strength is 368MPa.

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Abstract

The invention discloses a method for preventing invalidation of zirconium adding reinforcement of 5052 aluminum alloy cold-rolled sheets. The method is characterized in that composition elements of 5052 alloy and zirconium are smelted by being sequentially added into a smelting furnace in the form of intermediate alloy or salt, and feeding follows the principles that small raw materials are fed before large raw materials, fusible raw materials are fed before refractory raw materials and raw materials low in burning loss are fed before raw materials prone to burning loss; and the 5052 aluminum alloy is prepared through the smelting and casting process then is cold-rolled till the thickness is 0.5 mm, wherein the content of the zirconium element is smaller than or equal to 0.05%. By the adoption of the method, invalidation of zirconium adding reinforcement of the 5052 aluminum alloy and waste of zirconium agents can be effectively prevented in industrial production.

Description

technical field [0001] The invention relates to an alloy strengthening technology, in particular to a method for avoiding the strengthening failure of a 5052 aluminum alloy cold-rolled thin plate added with zirconium. Background technique [0002] In the 11th issue of "Journal of Northeast University" in 2011, "The influence of Sc and Zr on the structure and mechanical properties of Al-Zn-Mg-Cu aluminum alloys" introduced the addition of 0% to Al-Zn-Mg-Cu alloys, 0.05%, 0.15%, 0.25% Zr, extruded into a small round rod with a diameter of 12mm, the alloy strength increases with the increase of Zr content. Disadvantages: It is found that the strengthening law of Zr to Al-Zn-Mg-Cu alloy increases with the increase of Zr content, but it is not applicable to Al-Mg alloys, especially 5052 aluminum alloy. Contents of the invention [0003] The purpose of the present invention is to provide a method for avoiding the failure of 5052 aluminum alloy cold-rolled thin plate adding zirc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C21/06
CPCC22C1/026C22C1/03C22C21/06
Inventor 蒋显全佘欣未陈久安齐保彭和
Owner SOUTHWEST UNIV