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Silicon-aluminum alloy and preparation method thereof

A technology of silicon-aluminum alloy and aluminum alloy, which is applied in the field of silicon-aluminum alloy and its preparation, can solve the problems of unreasonable aluminum alloy components, poor processing methods, and easy fracture, etc., and achieve high quality, consistent grain size, Good wear resistance

Active Publication Date: 2015-04-01
ZUNYI FENGHUA ELECTROMECHANICAL FITTINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a silicon-aluminum alloy and its preparation method to solve the problem of unreasonable components of traditional aluminum alloys and poor processing methods, resulting in poor performance of processed materials and easy processing during processing. Deficiencies due to defects such as breakage, wrinkles, and fatigue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A silicon-aluminum alloy, containing the following components in weight percentage: 6% magnesium, 8% silicon, 0.05% iron, 0.05% copper, 0.02% manganese, 0.06% chromium, 0.08% nickel, 0.1% zinc, bismuth 0.02%, titanium 0.1%, and the rest is aluminum.

[0019] The manufacture method of described silicon-aluminum alloy is:

[0020] (1) Put aluminum, magnesium and silicon into the smelting furnace, heat it to 800°C in an environment filled with nitrogen to melt it into a melt, then add iron and copper to the melt with a gas carrier, and keep stirring at a constant temperature 8min, then adjust the temperature to 780°C, blow argon in the smelting furnace to refine the mixed melt for 15min, and remove the scum on the liquid surface to obtain a mixed melt;

[0021] (2) Send the mixed melt into the intermediate frequency furnace, raise the temperature to 1150°C, add manganese, chromium, nickel, titanium, zinc and bismuth, and keep it for 12 minutes, then send the material into...

Embodiment 2

[0023] A silicon-aluminum alloy, containing the following components in weight percent: 7% magnesium, 10% silicon, 0.08% iron, 0.09% copper, 0.06% manganese, 0.1% chromium, 0.1% nickel, 0.1% zinc, bismuth 0.02%, titanium 0.1%, and the rest is aluminum.

[0024] The manufacture method of described silicon-aluminum alloy is:

[0025] (1) Put aluminum, magnesium and silicon into the smelting furnace, heat it to 800°C in an environment filled with nitrogen to melt it into a melt, then add iron and copper to the melt with a gas carrier, and keep stirring at a constant temperature 4min, then adjust the temperature to 780°C, blow argon in the smelting furnace to refine the mixed melt for 16min, and remove the scum on the liquid surface to obtain a mixed melt;

[0026] (2) Send the mixed melt into the intermediate frequency furnace, raise the temperature to 1250°C, add manganese, chromium, nickel, titanium, zinc and bismuth, keep it for 12 minutes, then send the material into the inj...

Embodiment 3

[0028] A silicon-aluminum alloy, containing the following components in weight percentage: 10% magnesium, 16% silicon, 0.15% iron, 0.2% copper, 0.15% manganese, 0.25% chromium, 0.22% nickel, 0.5% zinc, bismuth 0.1%, titanium 0.2%, and the rest is aluminum.

[0029] The manufacture method of described silicon-aluminum alloy is:

[0030] (1) Put aluminum, magnesium and silicon into the smelting furnace, heat it to 805°C in an environment filled with nitrogen to melt it into a melt, then add iron and copper to the melt with a gas carrier, and keep stirring at a constant temperature 5min, then adjust the temperature to 780°C, blow argon in the smelting furnace to refine the mixed melt for 15min, and remove the scum on the liquid surface to obtain a mixed melt;

[0031] (2) Send the mixed melt into the intermediate frequency furnace, raise the temperature to 1200°C, add manganese, chromium, nickel, titanium, zinc and bismuth, keep it for 9 minutes, and then send the material into ...

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Abstract

The invention discloses a silicon-aluminum alloy, belonging to the technical field of metal materials. The silicon-aluminum alloy disclosed by the invention contains the following components in percentage by weight: 6-10% of magnesium, 8-16% of silicon, 0.05-0.15% of iron, 0.05-0.2% of copper, 0.02-0.15% of manganese, 0.06-0.25% of chromium, 0.08-0.22% of nickel, 0.1-0.2% of titanium, and the balance of aluminum. Compared with the traditional aluminum alloy, the silicon-aluminum alloy disclosed by the invention is steady in component, good in quality, free from segregation, more uniform in tissue, uniform in grain size and better in performance.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a silicon-aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. The density of pure aluminum is only 1 / 3 of that of iron, and its melting point is low. Aluminum has a face-centered cubic structure, has high plasticity, is easy to process, and can be made into various profiles and plates, and has good corrosion resistance; but pure aluminum has low strength and is not suitable for structural materials. Through long-term production practice and scientific experiments, people have gradually strengthened aluminum by adding alloying elements and using heat treatment, which resulted in a series of aluminum alloys. The alloy formed by adding certain elements can have high strength while maintaining the advantages of pure aluminum such as light weight, and has b...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22C1/02
CPCB22F3/115C22C1/026C22C21/02C22C21/08
Inventor 高义根
Owner ZUNYI FENGHUA ELECTROMECHANICAL FITTINGS CO LTD
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