Aluminum alloy and smelting method thereof

A technology of aluminum alloy and tungsten alloy, applied in aluminum alloy and its smelting method and application field, to achieve the effect of improving electrical conductivity, reducing component loss, and increasing contact area

Active Publication Date: 2018-02-23
江苏镭明新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Focus on solving the problems of 6××× series aluminum alloys to strengthen the alloy phase and the uniformity of graphene dispersion, synergistically improve the electrical conductivity and mechanical properties of aluminum alloys, and reduce costs

Method used

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  • Aluminum alloy and smelting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take a 100ml beaker and pour 25.5ml of absolute ethanol, dissolve 1.5g of graphene oxide in absolute ethanol and ultrasonically shake for 20min, add 2.6g of pure silicon powder and 6.9g of pure magnesium powder successively, stir evenly for 20min, then add 0.5g of glass powder and 0.5 g of ethyl cellulose was uniformly stirred for 10 minutes and then placed in an oven at 60° C. for 20 minutes to obtain the added slurry. Use coarse sand to roughen the surface of the tungsten alloy ball by high-speed shot peening for 15 minutes, put it into the slurry and roll it back and forth, so that all the slurry is attached to the surface of the tungsten alloy ball, and dry at 60°C for 10 minutes.

[0031] 750g of pure aluminum was smelted in a resistance furnace, the heating rate was 15°C / min, the melting temperature was 680°C, and the temperature was kept for 20min to obtain liquid aluminum. Then put the tungsten alloy ball covered with the slurry into the molten aluminum through ...

Embodiment 2

[0033]Take a 100ml beaker and pour 26ml of absolute ethanol, dissolve 2g of graphene oxide in absolute ethanol and ultrasonically shake for 10min, add 2.8g of pure silicon powder and 6g of pure magnesium powder successively, stir evenly for 10min, then add 0.6g of glass powder and 0.5g of ethyl alcohol Base cellulose, stir evenly for 5 minutes, put it in an oven at 60°C and keep it warm for 20 minutes to obtain the added slurry. Use coarse sand to roughen the surface of the tungsten alloy ball by high-speed shot peening for 10 minutes, put it into the slurry and roll it back and forth, so that all the slurry is attached to the surface of the tungsten alloy ball, and dry at 60°C for 10 minutes.

[0034] 750g of pure aluminum was smelted in a resistance furnace, the heating rate was 20°C / min, the melting temperature was 700°C, and the temperature was kept for 15min to obtain liquid aluminum. Then put the tungsten alloy ball covered with the slurry into the aluminum liquid throug...

Embodiment 3

[0036] Take a 100ml beaker and pour 26.5ml of absolute ethanol, dissolve 3g of graphene oxide in absolute ethanol and ultrasonically shake for 15min, add 2.5g of pure silicon powder and 7g of pure magnesium powder successively, stir evenly for 15min, then add 0.8g of glass powder and 0.5g of Ethyl cellulose was evenly stirred for 10 minutes and then placed in an oven at 60° C. for 20 minutes to obtain the added slurry. Use coarse sand to roughen the surface of the tungsten alloy ball by high-speed shot peening for 12 minutes, put it into the slurry and roll it back and forth, so that all the slurry is attached to the surface of the tungsten alloy ball, and dry at 60°C for 10 minutes.

[0037] 750g of pure aluminum was smelted in a resistance furnace, the heating rate was 25°C / min, the melting temperature was 720°C, and the temperature was kept for 10min to obtain liquid aluminum. Then put the tungsten alloy ball covered with slurry into the aluminum liquid through the tungsten...

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Abstract

The invention discloses an aluminum alloy and a smelting method thereof. Adding sizing agents such as magnesium, silicon and oxidized graphene are attached to the roughening tungsten alloying pellet surface, roughening tungsten alloying pellets are quickly placed into molten aluminum through a tungsten alloying net, and therefore magnesium and silicon ingredients form Mg2Si phases to be added intoan aluminum matrix; and in addition, the oxidized graphene is restored and is evenly scattered in the molten aluminum through a magnesium explosive reaction. According to the aluminum alloy preparedthrough the method, the magnesium and silicon ingredients can be effectively added into the aluminum matrix to form Mg2Si intensified alloying phases, and the conductivity and the mechanical propertyof the aluminum alloy can be greatly improved at the same time through dispersion reduction of the oxidized graphene. In addition, the smelting equipment requirement is low, the process is simple, andthe aluminum alloy and the smelting method are suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of aluminum alloy strengthening and preparation. In particular, it relates to an aluminum alloy and its melting method and application. Background technique [0002] 6××× aluminum alloys have good plasticity, weldability and corrosion resistance, and are widely used in aircraft parts, couplers, electronic devices and joints, etc. The main additive elements of 6××× series aluminum alloys are magnesium and silicon. Whether they can be better added to aluminum alloys directly affects the performance of 6××× series aluminum alloys. Compared with powder metallurgy, the alloys prepared by smelting are denser. , Superior performance, so many alloys currently used in demanding occasions are obtained by smelting methods. However, the traditional smelting process is difficult to add magnesium and silicon elements in the 6××× series aluminum alloys to form Mg 2 Si strengthening phase, when magnesium is added, the aluminum oxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C1/06C22C21/08
CPCC22C1/06C22C1/1005C22C1/1036C22C21/08C22C1/1047
Inventor 贺显聪许永祥邹高鹏张慧王红星
Owner 江苏镭明新材料科技有限公司
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