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Aluminum alloy foil and preparation method thereof

A technology of aluminum alloy foil and aluminum alloy, which is applied in the field of aluminum alloy to achieve the effects of reduced usage, high tensile strength, and good bending resistance

Active Publication Date: 2019-07-16
RUYUAN DONGYANG UACJ PRECISION FOIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of existing aluminum alloy scrap recycling and aluminum alloy foil materials for automobiles, and provide an aluminum alloy foil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An aluminum alloy foil, comprising the following components in mass percent (see Table 1 for details):

[0037] Table 1.

[0038] Si Fe Cu mn Mg Zn Ti Other individual impurities Total other impurities Al 0.72 0.54 0.27 1.41 1.53 0.38 0.04 ≤0.05 ≤0.15 margin

[0039] The preparation method is as follows:

[0040] S1. Calculate and prepare the materials according to the above ingredients, put them into the melting furnace for melting, after refining, slag removal, stirring, analysis and adjustment of ingredients, enter the static furnace, stand still, refine, degas, remove slag, and put them in the molten aluminum After adding Al-5Ti-1B wire, it enters the casting machine and casts it into an ingot to make an ingot according to the content of the components, and then melts and casts it to obtain an ingot;

[0041] S2. Milling the surface of the ingot, soaking the ingot, the holding temperature of the ingot is 595°C, the holding...

Embodiment 2

[0044] An aluminum alloy foil, comprising the following components in mass percentage (see Table 2 for details):

[0045] Table 2

[0046] Si Fe Cu mn Mg Zn Ti Other individual impurities Total other impurities Al 0.83 0.46 0.33 1.38 1.66 0.57 0.04 ≤0.05 ≤0.15 margin

[0047] The preparation method is as follows:

[0048] S1. Calculate and prepare the materials according to the above ingredients, put them into the melting furnace for melting, after refining, slag removal, stirring, analysis and adjustment of ingredients, enter the static furnace, stand still, refine, degas, remove slag, and put them in the molten aluminum After adding Al-5Ti-1B wire, it enters the casting machine and casts it into an ingot;

[0049] S2. Milling the surface of the ingot, soaking the ingot, the holding temperature of the ingot is 585°C, the holding time of the ingot is 16 hours, the starting thickness of the hot rolling is controlled at 550°C, and th...

Embodiment 3

[0052] An aluminum alloy foil, comprising the following components in mass percentage (see Table 3 for details):

[0053] table 3

[0054] Si Fe Cu mn Mg Zn Ti Other individual impurities Total other impurities Al 0.91 0.67 0.42 1.51 1.33 0.69 0.07 ≤0.05 ≤0.15 margin

[0055] The preparation method is as follows:

[0056] S1. Calculate and prepare the materials according to the above ingredients, put them into the melting furnace for melting, after refining, slag removal, stirring, analysis and adjustment of ingredients, enter the static furnace, stand still, refine, degas, remove slag, and put them in the molten aluminum After adding Al-5Ti-1B wire, it enters the casting machine and casts it into an ingot;

[0057] S2. Carry out milling to the ingot surface, the heat preservation temperature of the ingot is 580 ℃, the heat preservation time of the ingot is 15 hours, the starting thickness of the hot rolling is controlled at 540 ℃,...

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Abstract

The invention discloses an aluminum alloy foil and preparation method thereof. The aluminum alloy foil comprises the following components of, in percentage by mass, 0.7%-1.0% of Si, 0.3%-0.85% of Fe,0.25%-0.45% of Cu, 1.3%-1.6% of Mn, 1.3%-1.8% of Mg, 0.25%-0.8% of Zn, 0.03%-0.08% of Ti, and the balance impurities and Al, wherein single content of other impurities is not more than 0.05%, and thetotal proportion of other impurities is not more than 0.15%. The aluminum alloy foil disclosed by the invention, has excellent high-temperature resistant baking performance and bending resistance performance, and ensures that the aluminum alloy foil still has high strength and excellent forming performance after being baked by a high-temperature coating; an automobile aluminum alloy waste materialis used as a raw material, green circulation production is realized, the energy consumption is reduced, the environmental pollution is reduced, the use ratio of the aluminum alloy waste for the automobile is over 85%, the using amount of the raw electrolytic aluminum ingot is reduced to the maximum extent, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy foil and a preparation method thereof. Background technique [0002] China's cars have exceeded 200 million in March 2017, and the number of vehicles to be scrapped every year is also a very alarming number. In 2018, the number of scrapped vehicles was as high as 9.07 million. The aluminum alloys used in automobiles are various and complex. Including the use of 3XXX series, 4XXX series, 5XXX series, 6XXXX series and 7XXX series aluminum alloys, basically covering all types of aluminum alloy series, the recycling of automotive aluminum alloy waste is extremely difficult, and basically cannot be used for a single series of alloys . Moreover, these aluminum alloy scraps contain elements such as Si, Mn, Mg, Zn, Cu, etc., which are relatively high in composition, and cannot be reused. They can only be made into remelted aluminum ingots for low-grade casting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/00C22F1/047C22F1/04
CPCC22C21/00C22C21/08C22F1/04C22F1/047
Inventor 池国明胡展奎杜新伟
Owner RUYUAN DONGYANG UACJ PRECISION FOIL CO LTD
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