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Wear-resistant aluminum alloy

An aluminum alloy and weight meter technology, applied in the field of wear-resistant aluminum alloy, can solve the problems of difficult quality control and complicated operation, and achieve the effect of improving hardness and alkali corrosion resistance

Inactive Publication Date: 2013-01-16
WUXI HONGCHANG HARDWARE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex operation and difficult quality control of existing methods for improving the hardness of aluminum-silicon alloys. The present invention provides a high-hardness wear-resistant aluminum alloy by adding alloy elements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A wear-resistant aluminum alloy, by weight percentage, containing 12% silicon, 6% magnesium, 0.2% vanadium, 0.3% titanium, 0.4% cobalt, 0.6% cerium, 0.1% ytterbium, made up to 100% with aluminum, silicon , magnesium, vanadium, titanium, cobalt, cerium, ytterbium, and aluminum are smelted at 910°C according to the proportion, and cast into shapes.

Embodiment 2

[0014] A wear-resistant aluminum alloy, by weight percentage, containing 12.5% ​​silicon, 6.9% magnesium, 0.24% vanadium, 0.34% titanium, 0.5% cobalt, 0.69% cerium, 0.13% ytterbium, made up to 100% with aluminum, silicon , magnesium, vanadium, titanium, cobalt, cerium, ytterbium, and aluminum are smelted at 890 °C according to the proportion, and cast.

Embodiment 3

[0016] A wear-resistant aluminum alloy, by weight percentage, containing 13% silicon, 7.3% magnesium, 0.27% vanadium, 0.35% titanium, 0.6% cobalt, 0.76% cerium, 0.15% ytterbium, made up to 100% with aluminum, silicon , magnesium, vanadium, titanium, cobalt, cerium, ytterbium, and aluminum are melted and cast at 900°C according to the proportioning amount.

[0017] .

[0018] Corrosion resistance test: the alloy is immersed in 1% NaOH in the corrosion medium for 1 month, and the corrosion rate is 0.010~0.012g / (m 2 h), which is better than the 0.025~0.03g / (m 2 h).

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PUM

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Abstract

The invention discloses wear-resistant aluminum alloy. The wear-resistant aluminum alloy comprises, by weight, 12-13% of silicon, 6-7.3% of magnesium, 0.2-0.27% of vanadium, 0.3-0.35% of titanium, 0.4-0.6% of cobalt, 0.6-0.76% of cerium, 0.1-0.15% of ytterbium and the balance of aluminum. The hardness of the wear-resistant aluminum alloy can be improved evidently by about 18% and is increased from the original about 490 to about 580, and alkali corrosion resistance of the wear-resistant aluminum alloy is also increased evidently.

Description

technical field [0001] The invention belongs to the field of aluminum alloys, and in particular relates to a wear-resistant aluminum alloy. Background technique [0002] 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. Contents of the invention [0003] The purpose of...

Claims

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Application Information

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IPC IPC(8): C22C21/02
Inventor 浦永建
Owner WUXI HONGCHANG HARDWARE MFG
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