Al-Mg high magnesium alloys for automobile body sheets and manufacturing method thereof

A high-magnesium aluminum alloy and automobile body plate technology, which is applied to aluminum alloys and their manufacturing, Al-Mg series high-magnesium aluminum alloys for automobile body plates and their manufacturing fields, can solve problems such as inability to match strength, and achieve good Economic benefits, prevention of strength reduction, good plasticity

Active Publication Date: 2010-11-10
ZHEJIANG GKO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Zhou Qingbo and others described the influence of chemical composition on the properties of 5083 aluminum alloy in Light Alloy Processing Technology, 2007, Vol. The role and its impact on the performance of aluminum alloys, the impact of impurities Fe, Si on the performance of alumi

Method used

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  • Al-Mg high magnesium alloys for automobile body sheets and manufacturing method thereof
  • Al-Mg high magnesium alloys for automobile body sheets and manufacturing method thereof
  • Al-Mg high magnesium alloys for automobile body sheets and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] The batching was carried out according to the mass percentage of Example 1 in Table 1 to produce aluminum ingots, master alloys AlCu50, AlMn10, AlCr4, AlBe3, AlZr4, Al-5Ti-B.

[0044] First put the aluminum ingot into the crucible resistance furnace, when the aluminum ingot is melted and the melt temperature is 720℃, add AlCu50, AlMn10, AlCr4, AlBe3, AlZr4 master alloy and stir; when the melt temperature reaches 710℃, add Mg and Zn , Slagging and refining; When the temperature is at 710℃, add Al-5Ti-B master alloy, stir and stand for 50 minutes, and cast in a cast iron mold at a temperature of 680℃;

[0045] Homogenize the above cast aluminum alloy ingot, the temperature of the homogenization treatment is 450, the treatment time is 24 hours, the temperature is 450, the temperature is hot rolling, the intermediate annealing, the intermediate annealing temperature is 400 ℃, the intermediate annealing The time is 40min, and water quenching is used for rapid co...

Example Embodiment

[0047] Example 2

[0048] The batching was carried out according to the mass percentage of Example 2 in Table 1 to produce aluminum ingots, master alloys AlCu50, AlMn10, AlCr4, AlBe3, AlZr4, Al-5Ti-B.

[0049] First put the aluminum ingot into the crucible resistance furnace. When the aluminum ingot is melted and the melt temperature is 730℃, add AlCu50, AlMn10, AlCr4, AlBe3, AlZr4 master alloy and stir; when the melt temperature reaches 720℃, add Mg and Zn , Slagging and refining; When the temperature is at 710℃, add Al-5Ti-B master alloy, stir and stand for 40 minutes, and cast in a cast iron mold at a temperature of 700℃;

[0050] Homogenize the above casted aluminum alloy ingot, the temperature of the homogenization treatment is 460℃, the treatment time is 20 hours, the temperature is 460℃, the temperature is hot rolled, the intermediate annealing, the temperature of the intermediate annealing is 420℃, The annealing time is 30 minutes, and the strong wind is used for rapid cooli...

Example Embodiment

[0052] Example 3

[0053] The batching was carried out according to the mass percentage of Example 3 in Table 1 to produce aluminum ingots, master alloys AlCu50, AlMn10, AlCr4, AlBe3, AlZr4, Al-5Ti-B.

[0054] First put the aluminum ingot into the crucible resistance furnace, when the aluminum ingot is melted and the melt temperature is 740℃, add AlCu50, AlMn10, AlCr4, AlBe3, AlZr4 master alloy and stir; when the melt temperature reaches 720℃, add Mg and Zn , Slagging and refining; When the temperature is at 720℃, add Al-5Ti-B master alloy, stir and stand for 30 minutes, and cast in a cast iron mold at 700℃;

[0055] Homogenize the above cast aluminum alloy ingots. The temperature of the homogenization treatment is 470°C, the treatment time is 15 hours, and the temperature is 470°C. The temperature is hot rolled and intermediate annealing. The intermediate annealing temperature is 400°C. The annealing time is 30 minutes, and water quenching is used for rapid cooling after intermedia...

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Abstract

The invention provides Al-Mg high magnesium alloys for automobile body sheets and a manufacturing method thereof, belonging to the technical field of alloy materials. The invention solves the following problem: the existing 5083 series alloys have insufficient strength and poor impact resistance and surface quality when being used for the automobile bodies. The alloys comprise the following components in percentage by weight: 0.01-0.2wt% of Cu, 0.6-0.9wt% of Mn, 4.9-5.6wt% of Mg; 0.05-0.2wt% of Cr, 0.1-1.5wt% of Zn, 0.005-0.01wt% of Be, 0.05-0.2wt% of Ti, 0.05-0.2wt% of Zr, not more than 0.2wt% of Si, not more than 0.3wt% of Fe and the balance Al. The alloys have the advantages of high strength and good plasticity and corrosion resistance.

Description

technical field [0001] The invention relates to an aluminum alloy and a manufacturing method thereof, in particular to an Al-Mg series high-magnesium aluminum alloy for automobile body panels and a manufacturing method thereof, belonging to the technical field of alloy materials. Background technique [0002] The world's auto industry is facing three increasingly severe issues: energy, environmental protection, and safety. Reducing the weight of automobiles to reduce energy consumption, reduce environmental pollution, improve fuel economy of automobiles, and save limited resources have become the focus of major automobile factories. Lightweight is an important trend in the development of automobiles. By using lightweight materials to replace traditional steel materials, the weight of automobiles can be reduced to save fuel. Aluminum alloy, as the preferred material for automobile lightweight, has excellent performance unmatched by other materials. [0003] 5083 aluminum al...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/03C22F1/047
Inventor 丁荣辉曲明洋黄文辉曾凡清张超
Owner ZHEJIANG GKO IND CO LTD
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