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Aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermal forming property and preparation method and application thereof

An aluminum alloy and thermoforming technology, which is applied in the field of aluminum alloy, can solve problems such as lack and achieve good thermoforming performance

Inactive Publication Date: 2021-03-19
山东创新精密科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the lack of high-strength, high-conductivity, corrosion-resistant, weldable, and good thermoformable aluminum alloy materials in the prior art, the present invention provides a high-strength, high-conductivity, corrosion-resistant, weldable, good thermoformable aluminum alloy and its The preparation method and application, by adding grain-refining elements, the ingot grains of the present invention are made finer and the casting structure is more uniform; by changing the size of the precipitated phase, the electron movement resistance is reduced, and the electrical conductivity is improved; by adding alloy elements appropriately, the Alloy strength, control the addition ratio of each element, eliminate the adverse effects of elements, improve corrosion resistance and weldability, through the interaction and coordination between elements, the alloy has high strength, high conductivity, corrosion resistance, weldability, and good thermoforming performance

Method used

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  • Aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermal forming property and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0046] An aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermoformability, the aluminum alloy can be used to manufacture a magnetic levitation induction plate, and the aluminum alloy is composed of the following chemical components in mass fractions:

[0047]Si: 0.3503%, Fe: 0.5855%, Cu: 0.1510%, B: 0.0111%, Mn: 0.0023%, Mg: 0.0011%, Cr≤0.0021%, Zn≤0.0008%, Ti≤0.0011%, C: 0.0012%, Single impurity ≤ 0.03%, alloy impurity ≤ 0.10%, the balance is Al;

[0048] The aluminum alloy is prepared by the following preparation method:

[0049] (1) Casting treatment

[0050] Add aluminum ingots and molten aluminum in turn into the molten pool. The temperature of the molten aluminum is allowed to fluctuate within the range of 800-1000°C. When the temperature of the molten aluminum in the molten pool is 860-870°C, add Si, Fe, Cu, and B elements to continue heating and melting. Electromagnetic stirring device, until all the added elements a...

Embodiment 2

[0061] An aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermoformability, the aluminum alloy can be used to manufacture a magnetic levitation induction plate, and the aluminum alloy is composed of the following chemical components in mass fractions:

[0062] Si: 0.3515%, Fe: 0.5842%, Cu: 0.1500%, B: 0.0101%, Mn: 0.0020%, Mg: 0.0014%, Cr≤0.0023%, Zn≤0.0007%, Ti≤0.0013%, C: 0.0011%, Single impurity ≤ 0.03%, alloy impurity ≤ 0.10%, the balance is Al;

[0063] The aluminum alloy is prepared by the following preparation method:

[0064] (1) Casting treatment

[0065] Add aluminum ingots and molten aluminum in sequence to the melting pool of the melting furnace. The temperature of the molten aluminum is allowed to fluctuate within the range of 800-1000°C. When the temperature of the molten aluminum in the molten pool is 860-870°C, add Si, Fe, Cu, and B elements to continue heating and melting. At the same time, turn on the electr...

Embodiment 3

[0076] An aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermoformability, the aluminum alloy can be used to manufacture a magnetic levitation induction plate, and the aluminum alloy is composed of the following chemical components in mass fractions:

[0077] Si: 0.3542%, Fe: 0.5820%, Cu: 0.1503%, B: 0.0131%, Mn: 0.0025%, Mg: 0.0017%, Cr≤0.0019%, Zn≤0.0009%, Ti≤0.0010%, C: 0.0015%, Single impurity ≤ 0.03%, alloy impurity ≤ 0.10%, the balance is Al;

[0078] The aluminum alloy is prepared by the following preparation method:

[0079] (1) Casting treatment

[0080] Add aluminum ingots and molten aluminum in sequence to the melting pool of the melting furnace. The temperature of the molten aluminum is allowed to fluctuate within the range of 800-1000°C. When the temperature of the molten aluminum in the molten pool is 860-870°C, add Si, Fe, Cu, and B elements to continue heating and melting. At the same time, turn on the electr...

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Abstract

The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy with high strength, high conductivity, corrosion resistance, weldability and good thermal forming property and a preparation method and application thereof to manufacturing of a magnetic levitation induction plate. The aluminum alloy is prepared from, by mass, 0.1-0.6% of Si, 0.-0.7% of Fe, 0.1-0.5%of Cu, 0.01-0.15% of B, Mn<=0.1%, Mg<=0.01%, Cr<=0.1%, Zn<=0.1%, Ti<=0.1 and 0.001-0.005%of C, wherein the single impurity is less than or equal to 0.05%, the alloy impurity is less than or equal to0.12%, and the balance is AI. The preparation method comprises the steps of fusion casting treatment, homogenization treatment, extrusion treatment, cold deformation treatment and stabilization treatment. Through interaction and coordination of elements, the alloy has high strength, high conductivity, corrosion resistance, weldability and good thermal forming performance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a high-strength, high-conductivity, corrosion-resistant, weldable aluminum alloy with good thermoformability and its preparation method and application. Background technique [0002] With the rapid development of social economy, people have higher and higher demand for faster and safer transportation. The convenient, fast and safe travel mode provides a good guarantee for people's communication and work efficiency. At the limit, a trackless vehicle with less resistance and faster speed makes the running speed between the speed of high-speed rail and airplane, and the maglev train shows the speed advantage. The material of the magnetic levitation induction plate has a significant impact on the resistance and power of the magnetic levitation vehicle. Materials with high strength, good electrical and thermal conductivity, corrosion resistance, weldability, and good formabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22C1/06C22F1/04
CPCC22C1/026C22C1/03C22C1/06C22C21/00C22F1/002C22F1/04
Inventor 崔国昌宋微李旭田尧胡哲张云海李宁
Owner 山东创新精密科技有限公司
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