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A kind of graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hub

A technology for casting aluminum alloys and automobile wheels, which is applied in the field of casting aluminum alloys. It can solve the problems of low density of parts, poor material properties, and easy segregation, etc., achieve excellent electrical conductivity, improve comprehensive mechanical properties, and improve alloys. The effect of elongation

Active Publication Date: 2021-02-12
广州埃米石墨烯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of powder metallurgy is high, the cycle is long, the density of the prepared parts is not high, and there are internal defects, which leads to the phenomenon of poor material performance, and often requires secondary processing
The casting method is relatively simple, low in cost, and can be mass-produced, but segregation is prone to occur during the casting process, and gas is easily brought into the non-vacuum oscillating stirring casting process to form pores, and the harmful interface reaction between graphene and aluminum needs to be controlled

Method used

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  • A kind of graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hub
  • A kind of graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hub
  • A kind of graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hub

Examples

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Effect test

Embodiment 1

[0048] A graphene rare earth scandium synergistically reinforced cast aluminum alloy, the weight percentage of each raw material is: Sc 0.54wt.%, graphene 0.003wt.%, Si 6.90wt.%, Mg 0.40wt.%, Li 0.02wt.%, Be 0.02wt.%, B0.02wt.%, Na 0.02wt.%, P 0.02wt.%, Ti 0.03wt.%, V 0.03wt.%, Cr 0.02wt.%, Mn0.03wt.%, Fe 0.02 wt.%, Ni 0.03wt.%, Cu 0.02wt.%, Zn 0.02wt.%, Zr 0.03wt.%, Sn0.02wt.%, Pb 0.03wt.%, other unspecified other impurity elements: each ≤0.01wt.%, total ≤0.10wt.%, the balance is Al.

[0049] Its preparation method steps are as follows:

[0050] (1) Calculate and weigh raw materials according to the alloy composition, the total mass of raw materials is 75 grams, aluminum grains, silicon grains, magnesium grains, graphene powder, scandium grains, lithium grains, beryllium grains, boron grains, sodium grains, phosphorus grains, Titanium grains, vanadium grains, chromium grains, manganese grains, iron grains, nickel grains, copper grains, zinc grains, zirconium grains, tin gra...

Embodiment 2

[0056] A graphene rare earth scandium synergistically reinforced cast aluminum alloy, the weight percentage of each raw material is: Sc 0.54wt.%, graphene 0.003wt.%, Si 6.90wt.%, Mg 0.40wt.%, Li 0.02wt.%, Be 0.02wt.%, B0.02wt.%, Na 0.02wt.%, P 0.02wt.%, Ti 0.03wt.%, V 0.03wt.%, Cr 0.02wt.%, Mn0.03wt.%, Fe 0.02 wt.%, Ni 0.03wt.%, Cu 0.02wt.%, Zn 0.02wt.%, Zr 0.03wt.%, Sn0.02wt.%, Pb 0.03wt.%, other unspecified other impurity elements: each ≤0.01wt.%, total ≤0.10wt.%, the balance is Al.

[0057] Its preparation method steps are as follows:

[0058] (1) Calculate and weigh raw materials according to the alloy composition, the total mass of raw materials is 75 grams, aluminum grains, silicon grains, magnesium grains, graphene powder, scandium grains, lithium grains, beryllium grains, boron grains, sodium grains, phosphorus grains, Titanium grains, vanadium grains, chromium grains, manganese grains, iron grains, nickel grains, copper grains, zinc grains, zirconium grains, tin gra...

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Abstract

The invention relates to a graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hubs. The raw material components of the aluminum alloy in terms of mass percentage are: Si 6.0-8.0%, Mg 0.20-0.45%, Sc 0.50~0.60%, Graphene 0.003~0.007%, Li≤0.05%, Be≤0.05%, B≤0.05%, Na≤0.05%, P≤0.05%, Ti≤0.10%, V≤0.10%, Cr≤0.05 %, Mn≤0.10%, Fe≤0.10%, Ni≤0.05%, Cu≤0.10%, Zn≤0.10%, Zr≤0.05%, Sn≤0.05%, Pb≤0.10%, and the balance is Al. The aluminum alloy has excellent comprehensive mechanical properties and electrical conductivity, and is especially suitable for automobile wheel hubs.

Description

technical field [0001] The invention belongs to the technical field of cast aluminum alloys, in particular to a graphene rare earth scandium synergistically reinforced cast aluminum alloy and its application in automobile wheel hubs. Background technique [0002] At present, with the general concern about energy consumption in all countries in the world, in addition to meeting the normal use of automobile wheels, it is also necessary to consider how to reduce the weight and prolong the life of the wheels. These have become urgent problems in the development of automobiles. Aluminum alloy automobile wheels Small density, light weight, good casting fluidity, fast heat dissipation, good shock absorption performance, good corrosion resistance, long service life, beautiful appearance, obvious energy saving and emission reduction effects, and a very significant effect on speeding up the car. One of the most effective materials for realizing the weight reduction of automobiles. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C1/10C22F1/043
CPCC22C1/1036C22C21/02C22F1/043C22C1/1047
Inventor 刘玺张敏罗红斌吴素芹范国强
Owner 广州埃米石墨烯科技有限公司
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