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A kind of manganese-aluminum alloy sheet material with superplasticity and preparation method thereof

A technology of manganese-aluminum alloy and superplasticity, which is applied in the field of superplastic manganese-aluminum alloy plate and its preparation, can solve the problems of high cost, high requirements, and many processes, and achieve the effect of stable size and satisfying the amount of forming deformation

Active Publication Date: 2017-04-05
东莞佛亚铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the deformed aluminum alloy has ideal high plasticity, its processing process requires high equipment and tooling molds, and there are many processes, so the production cycle is long and the cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a superplastic manganese-aluminum alloy plate is made of the following components in terms of weight percentage: 3.2% manganese, 1.2% zinc, 0.22% titanium, 0.3% bismuth, 0.08% copper, ytterbium 0.07%, cadmium 0.04%, silicon 1.1% and the balance aluminum.

[0022] The preparation method of the superplastic manganese-aluminum alloy plate comprises the following steps:

[0023] (1) Prepare each component raw material according to the above weight percentage, and each component raw material is a pure ingot material or an alloy material;

[0024] (2) Add aluminum ingots to the melting furnace and melt at a temperature of 730°C. When the aluminum ingots are completely melted, raise the temperature of the melting furnace to 780°C, and then continue to put various alloy materials into the melting furnace and keep warm until the melting furnace When the alloy in the liquid is completely in liquid state, fully stir it, then add coverin...

Embodiment 2

[0030] In the embodiment of the present invention, a superplastic manganese-aluminum alloy plate is made of the following components in terms of weight percentage: 3.8% manganese, 0.8% zinc, 0.3% titanium, 0.2% bismuth, 0.12% copper, ytterbium 0.03%, cadmium 0.08%, silicon 0.8%, and the balance aluminum.

[0031] The preparation method of the superplastic manganese-aluminum alloy plate is the same as that in Example 1.

Embodiment 3

[0033] In the embodiment of the present invention, a superplastic manganese-aluminum alloy plate is made of the following components in terms of weight percentage: 3.4% manganese, 1.1% zinc, 0.25% titanium, 0.26% bismuth, 0.09% copper, ytterbium 0.06%, cadmium 0.05%, silicon 1.0%, and the balance aluminum.

[0034] The preparation method of the superplastic manganese-aluminum alloy plate is the same as that in Example 1.

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Abstract

The invention discloses a manganese and aluminum alloy sheet with super plasticity and a preparation method thereof. The manganese and aluminum alloy sheet is prepared from, by weight, 3.2-3.8% of manganese, 0.8-1.2% of zinc, 0.22-0.3% of titanium, 0.2-0.3% of bismuth, 0.08-0.12% of copper, 0.03-0.07% of ytterbium, 0.04-0.08% of cadmium, 0.8-1.1% of silicon and the balance aluminum. The raw materials are prepared; aluminum ingots are smelted, alloy materials are put in, heat preservation is performed, a covering agent is added in, a refining agent is added for refining when temperature is lowered to 720-730 DEG C, standing is performed, drossing is performed, and molten aluminum alloy is obtained; casting, annealing, rolling and middle-temperature coiling rolling are performed so that the manganese and aluminum alloy sheet can be obtained. The prepared manganese and aluminum alloy sheet has high-temperature superplastic performance, the transverse elongation percentage of the sheet can reach 214-228%, the longitudinal elongation percentage of the sheet can reach 236-250%, and a workpiece complicated in shape can be further formed.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy plate processing, in particular to a manganese aluminum alloy plate with superplasticity and a preparation method thereof. Background technique [0002] Energy, environmental protection, and safety are the problems faced by the automotive industry in the world today. Automobile lightweight is an effective way to reduce energy consumption, improve automobile fuel economy, and reduce environmental pollution. As a traditional metal material, aluminum alloy has low density, high specific strength, corrosion resistance, low density, good impact resistance, easy surface coloring, good processing formability, and high recycling and regeneration. Excellent properties make it an ideal material for automobile lightweight. [0003] With the development of modern industry and new casting technologies, the demand for aluminum alloys, such as aluminum alloys with high strength, high plasticity, excellen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04
CPCC22C1/026C22C21/00C22F1/04
Inventor 张健锋
Owner 东莞佛亚铝业有限公司
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