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Forming method for nano particle reinforced aluminum-based composite material

ActiveCN107604193AEasy to rule outNo splash reflowHigh energyPressure casting
The invention discloses a forming method for a nano particle reinforced aluminum-based composite material and belongs to the field of metal casting forming. Nano ceramic powder and micro size aluminumpowder or aluminum alloy powder are prepared into mixed powder with the nano ceramic particle content being 3-10%, the mixed powder is mechanically mixed into composite powder in a seal tank under argon protection, and the composite powder is hot-pressed into prefabricated blocks with the quality being about 150-200 g. The prefabricated blocks are melted after reaching about 750 DEG C, then mechanical stirring is conducted, and then high-energy supersonic vibration is conducted. Through ultra-low-speed laminar flow pressure casting, a composite material melt is pressed into a mold cavity of amold, mold opening is conducted for piece taking-out, and a nano ceramic particle reinforced aluminum-based composite material part with the mass fraction being 3-10% is obtained. According to the forming method for the nano particle reinforced aluminum-based composite material, the forming technique is simple and easy to achieve, the effect is good, and the problems that in casting, a ceramic particle reinforced aluminum-based composite material with the high mass fraction is large in viscosity and poor in liquidity, and ceramic particles are easy gathered are solved.
Owner:HUAZHONG UNIV OF SCI & TECH
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