Rust-preventing aluminum alloy

A technology of aluminum alloy and aluminum oxide, which is applied in the field of anti-rust aluminum alloy, can solve the problems of uneconomical, expensive nickel, and brittle alloy, and achieve the effect of improving corrosion resistance and wear resistance, and improving corrosion resistance

Inactive Publication Date: 2009-05-13
冷博
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some try to add a large amount of silicon to the alloy, which can easily make the alloy brittle
[0004] Some try to add a large amount of nickel to the alloy, which is uneconomical due to the high cost of nickel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, an antirust aluminum alloy, containing 76.25% by weight of aluminum, 0.01% by weight of manganese, 0.01% by weight of magnesium, 0.01% by weight of copper, 11.7% by weight of chromium, 0.01% by weight of nickel, 0.01% by weight of percent silicon and 12 percent by weight polycrystalline alumina (PCA) with a mean particle size of 10-100 microns and a small amount of magnesia.

[0021] Melt pure aluminum in a high-temperature electric furnace and continue to heat it to about 1700°C, add the above-mentioned superfine powder of alumina, chromium and other manganese, magnesium, copper, nickel, silicon components and stir evenly, refine and purify, keep warm, and pass Extruded into pipes, water cooled to room temperature.

[0022] The melting temperature of alumina is 2050 degrees Celsius. At 1700°C, alumina has not yet melted. At this time, the alumina polycrystal containing a small amount of magnesium oxide will transform into a single crystal (sapphire), th...

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PUM

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Abstract

The invention discloses a rust-proof aluminum alloy, which not only comprises 51 to 97.95 weight percent of aluminum, 0.01 to 2 weight percent of manganese, 0.01 to 2 weight percent of magnesium, and 0.01 to 3 weight percent of copper, but also comprises 1 to 19 weight percent of chromium, 0.01 to 9 weight percent of nickel, 0.01 to 4 weight percent of silicon, and 1 to 47.95 weight percent of aluminum oxide. The aluminum oxide forms a corundum-like substance in an aluminum alloy body to obviously improve the overall corrosion resistance and wear resistance of the aluminum alloy.

Description

technical field [0001] The invention relates to a rust-proof aluminum alloy, in particular to a rust-proof aluminum alloy with improved product strength and wear resistance. Background technique [0002] Existing antirust aluminum alloys have low hardness and are easily worn. In highly corrosive environments and under high pressure, it is easily corroded. [0003] Some try to add a large amount of silicon to the alloy, which can easily make the alloy brittle. [0004] Some try to add a large amount of nickel to the alloy, but this solution is uneconomical due to the high cost of nickel. [0005] Some try to add a large amount of iron to the alloy. Iron is a harmful substance in aluminum alloys and has a negative effect on the mechanical properties of aluminum alloys, so its use should be avoided. Contents of the invention [0006] The object of the present invention is to solve the above problems and provide a rust-proof aluminum alloy with improved product strength an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02
Inventor 冷博
Owner 冷博
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