Wear-resistance aluminum alloy

An aluminum alloy, wear-resistant technology, applied in the field of aluminum alloy, can solve the problems of increasing silicon particles, increasing alloy hardness and wear resistance, and difficult control of processing quality

Inactive Publication Date: 2018-05-01
HENAN ZHILIAN HUANYU INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aluminum-silicon alloy is a common aluminum alloy. Changes in the ratio of aluminum to silicon can have a great impact on hardness. For example, when the silicon content is less than 7%, the aluminum-silicon alloy has good ductility, and the silicon content exceeds the aluminum-silicon eutectic. (11.7% silicon), the silicon particles in the alloy increase significantly, and the hardness and wear resistance of the alloy also increase significantly. The existing method uses electrochemical treatment of the aluminum-silicon alloy to erode the surface aluminum and retain the silicon in the matrix , in order to further improve its wear resistance and hardness, but this method has the problems of complicated operation and difficult control of processing quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment provides a wear-resistant aluminum alloy, which is composed of the following elements in mass percentage: 5% silicon, 3.5% copper, 2% magnesium, 0.7% zinc, 0.21% boron, 0.12% cobalt, 0.44% nickel, titanium 0.12%, manganese 0.4%, antimony 0.5%, osmium 0.37%, iridium 0.25%, the balance is aluminum and impurities, and the impurity content is 0.1%.

[0016] The above-mentioned wear-resistant aluminum alloy provided in this embodiment is prepared by melting all the above-mentioned metal elements in proportion at a temperature of about 750° C., and casting them at a casting temperature of about 720° C.

Embodiment 2

[0018] This embodiment provides a wear-resistant aluminum alloy, which is composed of the following elements in mass percentage: 6.5% silicon, 1.5% copper, 2.2% magnesium, 0.67% zinc, 0.43% boron, 0.21% cobalt, 0.5% nickel, titanium 0.21%, manganese 0.63%, antimony 0.71%, osmium 0.29%, iridium 0.19%, the balance is aluminum and impurities, and the impurity content is 0.14%.

[0019] The above-mentioned wear-resistant aluminum alloy provided in this embodiment is prepared by melting all the above-mentioned metal elements in proportion at a temperature of about 760° C., and casting them into shapes at a casting temperature of about 725° C.

Embodiment 3

[0021] This embodiment provides a wear-resistant aluminum alloy, which is composed of the following elements in mass percentage: 8.1% silicon, 2.2% copper, 3% magnesium, 0.6% zinc, 0.6% boron, 0.29% cobalt, 0.63% nickel, titanium 0.31%, manganese 0.61%, antimony 0.75%, osmium 0.29%, iridium 0.2%, the balance is aluminum and impurities, and the impurity content is 0.13%.

[0022] The above-mentioned wear-resistant aluminum alloy provided in this embodiment is prepared by melting all the above-mentioned metal elements in proportion at a temperature of about 765° C., and casting them into shapes at a casting temperature of about 730° C.

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Abstract

The invention provides a wear-resistance aluminum alloy. The wear-resistance aluminum alloy consists of the following elements in percentage by mass: 5-10% of silicon, 1-3.5% of copper, 2-4% of magnesium, 0.5-0.7% of zinc, 0.2-1% of boron, 0.1-0.5% of cobalt, 0.4-0.8% of nickel, 0.1-0.5% of titanium, 0.4-0.8% of manganese, 0.5-1% of antimony, 0.2-0.38% of osmium, 0.15-0.25% of iridium, and the balance of aluminum and impurities. Through a synergistic effect of all the elements in the wear-resistance aluminum alloy, the wear resistance and the hardness of the aluminum alloy are improved; the hardness of the wear-resistance aluminum alloy is 492-540; and the alkali corrosion resistance of the wear-resistance aluminum alloy is prominently improved.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a wear-resistant aluminum alloy. Background technique [0002] Aluminum alloy has low density, but relatively high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various types of materials, and has excellent electrical conductivity, thermal conductivity and corrosion resistance. 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, aluminum alloy and chemical industry. [0003] The density of pure aluminum is small, about 1 / 3 of that of iron, and its melting point is low at 660°C. Aluminum has a face-centered cubic structure, so it has high plasticity and is easy to process. It can be made into various profiles and plates, aluminum alloys The corrosion resistance is good, but the strength of pure aluminum i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 吉飞虎王二丽
Owner HENAN ZHILIAN HUANYU INTPROP OPERATION CO LTD
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