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Rare-earth modified aluminum alloy materials and application thereof

An aluminum alloy material and rare earth modification technology, applied in the field of aluminum alloy preparation, can solve the problems of poor corrosion resistance, tensile strength, low elongation at break, etc., and achieve the effect of improving tensile strength

Inactive Publication Date: 2018-05-04
广西丰达三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rare earth aluminum alloy in this invention has excellent processing, mechanical and electrical properties, but has the problems of low tensile strength, low elongation at break, and poor corrosion resistance

Method used

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  • Rare-earth modified aluminum alloy materials and application thereof
  • Rare-earth modified aluminum alloy materials and application thereof

Examples

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preparation example Construction

[0028] The preparation method of the rare earth modified aluminum alloy material comprises the following steps:

[0029] S1: Add aluminum to the electromagnetic induction furnace, increase the temperature to 850-900°C to melt it, add silicon, manganese, copper, and lanthanum powders wrapped in aluminum foil in proportions by weight to melt, and stir the alloy melt. After 12-14 minutes, carry out degassing treatment, let it stand still, and then carry out ultrasonic treatment to obtain the aluminum-silicon-manganese-copper-lanthanum alloy intermediate. The temperature of ultrasonic treatment is 780-800°C, and the ultrasonic power is The time is 26-35min; adopt the same method to prepare the aluminum-titanium-carbon-cerium alloy intermediate; prepare the aluminum-silicon-manganese-copper-lanthanum alloy intermediate and the aluminum-titanium-carbon-cerium alloy intermediate by weight Forming a grain refiner, the size of the grain refiner is 15 μm or less;

[0030]S2: putting al...

Embodiment 1

[0037] A rare-earth modified aluminum alloy material, comprising the following raw materials in parts by weight: 1620 parts of aluminum, 16 parts of copper, 7 parts of vanadium, 5 parts of manganese, 7 parts of tin, 2 parts of chromium, 32 parts of rare earth elements, titanium carbide 14 parts, 10 parts of tungsten carbide, 8 parts of tungsten silicide, 4 parts of tungsten, 18 parts of refining agent, 30 parts of grain refiner;

[0038] The rare earth elements are in parts by weight, including the following raw materials: 8 parts of praseodymium, 4 parts of erbium, 2 parts of samarium, 4 parts of dysprosium, 7 parts of holmium, and 6 parts of yttrium;

[0039] The refining agent includes the following raw materials in parts by weight: 16 parts of sodium chloride, 15 parts of sodium fluoride, 6 parts of graphite, and 5 parts of calcium fluoride;

[0040] The grain refiner includes the following raw materials in parts by weight: 12 parts of aluminum-silicon-manganese-copper-lan...

Embodiment 2

[0049] A rare earth modified aluminum alloy material, in parts by weight, comprising the following raw materials: 1200 parts of aluminum, 19 parts of copper, 8 parts of vanadium, 6 parts of manganese, 8 parts of tin, 3 parts of chromium, 20 parts of rare earth elements, titanium carbide 10 parts, 8 parts of tungsten carbide, 7 parts of tungsten silicide, 3 parts of tungsten, 15 parts of refining agent, 26 parts of grain refiner;

[0050] The rare earth elements are in parts by weight, including the following raw materials: 7 parts of praseodymium, 6 parts of erbium, 1 part of samarium, 5 parts of dysprosium, 5 parts of holmium, and 7 parts of yttrium;

[0051] The refining agent includes the following raw materials in parts by weight: 20 parts of sodium chloride, 8 parts of sodium fluoride, 7 parts of graphite, and 3 parts of calcium fluoride;

[0052] The grain refiner includes the following raw materials in parts by weight: 7 parts of aluminum-silicon-manganese-copper-lantha...

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Abstract

The invention discloses rare-earth modified aluminum alloy materials and an application thereof, and belongs to the technical field of aluminum alloy preparation. The rare-earth modified aluminum alloy materials comprise, by mass, 1200-1850 parts of aluminum, 12-19 parts of copper, 5-8 parts of vanadium, 2-6 parts of manganese, 4-8 parts of tin, 1-3 parts of chromium, 20-38 parts of rare earth elements, 10-15 parts of titanium carbide, 8-12 parts of tungsten carbide, 7-9 parts of tungsten silicide, 3-5 parts of tungsten, 15-20 parts of refining agents, and 26-35 parts of grain refiners. The rare-earth modified aluminum alloy materials are prepared through the steps of melting, refining, slagging off, casting and the like. The rare-earth modified aluminum alloy materials are applied to aluminum alloy cables so that the tensile strength, the elongation at break and the corrosion resistance can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy preparation, and in particular relates to a rare earth modified aluminum alloy material and an application thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and it is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing, so the research on aluminum alloys is also in-depth. The wide application of aluminum alloys has promoted the development of aluminum alloys in the power industry, and at the same time the development of the power industry has broadened the application fields of aluminum alloys. [0003] The basic component of the power industry - power cable, is a resource used to transmit and distribute electric energy. Its basic struc...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03C22C1/06
CPCC22C21/00C22C1/026C22C1/03C22C1/06
Inventor 庞贤崇
Owner 广西丰达三维科技有限公司
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