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aluminum alloy ingot

A technology for aluminum alloy ingots and impurities, applied in the field of aluminum alloy ingots, can solve the problems of aluminum alloys prone to cracks and corrosion, low aluminum alloy density and high strength, and achieves improved casting appearance, excellent corrosion resistance, and good high-temperature mechanical properties. Effect

Active Publication Date: 2018-01-02
肇庆南都再生铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The density of aluminum alloy is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel, and its plasticity is good. Therefore, aluminum alloys are mostly used in casting products. The existing aluminum alloys are prone to cracks and corrosion

Method used

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Embodiment 1

[0017] An aluminum alloy ingot, comprising the following components in weight percentage: Si: 7.2%, Cu: 1.2%, Mg: 0.1%, Fe: 0.2%, Zn: 1.2%, Ni: 0.2%, Sn: 0.1%, Sr : 1.2%, Ti: 2.1%, B: 2.1%, Sb: 1.2%, As: 0.3%, RE: 0.22%, LaCe: 0.4% and Pr: 0.3%, the balance is Al and unavoidable impurities, and Impurities ≤0.1%.

Embodiment 2

[0019] An aluminum alloy ingot, comprising the following components in weight percentage: Si: 11.4%, Cu: 1.5%, Mg: 0.3%, Fe: 0.4%, Zn: 1.4%, Ni: 0.4%, Sn: 0.3%, Sr : 2.4%, Ti: 2.4%, B: 2.4%, Sb: 1.4%, As: 0.5%, RE: 0.44%, LaCe: 1.4% and Pr: 0.5%, the balance is Al and unavoidable impurities, and Impurities ≤0.1%.

Embodiment 3

[0021] An aluminum alloy ingot, comprising the following components in weight percentage: Si: 9.3%, Cu: 1.4%, Mg: 0.2%, Fe: 0.3%, Zn: 1.3%, Ni: 0.3%, Sn: 0.2%, Sr : 1.8%, Ti: 2.3%, B: 2.3%, Sb: 1.3%, As: 0.4%, RE: 0.33%, LaCe: 0.9% and Pr: 0.4%, the balance is Al and unavoidable impurities, and Impurities ≤0.1%.

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Abstract

The invention relates to an aluminum alloy ingot. The aluminum alloy ingot is prepared from, by weight percent, 7.2%-11.4% of Si, 1.2%-1.5% of Cu, 0.1%-0.3% of Mg, 0.2%-0.4% of Fe, 1.2%-1.4% of Zn, 0.2%-0.4% of Ni, 0.1%-0.3% of Sn, 1.2%-2.4% of Sr, 2.1%-2.4% of Ti, 2.1%-2.4% of B, 1.2%-1.4% of Sb, 0.3%-0.5% of As, 0.22%-0.44% of RE, 0.4%-1.4% of LaCe, 0.3%-0.5% of Pr and the balance Al and inevitable impurities, wherein the content of the impurities is not larger than 0.1%. The aluminum alloy ingot is good in comprehensive performance, resistant to corrosion and stable in performance.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to an aluminum alloy ingot. Background technique [0002] Aluminum alloy is an alloy composed of aluminum as a matrix element and then adding one or more alloying elements. The density of aluminum alloy is low, but its strength is relatively high, and it has excellent electrical conductivity, thermal conductivity and corrosion resistance, etc., which makes aluminum alloy materials widely used in the power industry. [0003] Aluminum alloy is an extended product of pure aluminum. The density of pure aluminum is small (ρ=2.7g / m3), about 1 / 3 of that of iron, and its melting point is low, about 660°C. Aluminum has a face-centered cubic structure, so it has High plasticity (δ: 32-40%, ψ: 70-90%), so it is easy to process, can be made into various profiles and plates, and has good corrosion resistance. However, the strength of pure aluminum is very low, so it is not suitable for structura...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 马革兰
Owner 肇庆南都再生铝业有限公司