Method for making magnesium-based composite material and equipment for making the same

a magnesium-based composite material and magnesium-based alloy technology, applied in the field of magnesium-based composite material manufacturing and equipment, can solve the problems of inability to achieve toughness and strength of magnesium-based alloys, prone to aggregation, and nano-scale reinforcements added to metal or alloy melts,

Inactive Publication Date: 2009-03-19
TSINGHUA UNIV +1
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  • Claims
  • Application Information

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Benefits of technology

[0007]In one embodiment, a method for fabricating a magnesium-based composite material includes the steps of: (a) providing a large amount of magnesium-based powder and a large amount of nanoscale reinforcements; (b)

Problems solved by technology

However, the toughness and the strength of the magnesium-based alloys are not able to meet the increasing needs of the automotive and aerospace industries for tougher and stronger alloys.
However, in stir casting, the nanoscale reinforcements are added to metal or alloy melt and are prone to aggregati

Method used

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  • Method for making magnesium-based composite material and equipment for making the same
  • Method for making magnesium-based composite material and equipment for making the same
  • Method for making magnesium-based composite material and equipment for making the same

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Embodiment Construction

[0013]Reference will now be made to the drawings to describe, in detail, embodiments of the present method for fabricating the magnesium-based composite material and the equipment for fabricating the same.

[0014]Referring to FIG. 1, a method for fabricating a magnesium-based composite material includes the steps of: (a) providing a large amount of magnesium-based powder and a large amount of nanoscale reinforcements; (b) uniformly mixing the magnesium-based powder and the nanoscale reinforcements to form a mixture; and (c) compacting the mixture at a high velocity in a protective gas to achieve the magnesium-based composite material.

[0015]In step (a), the material of the magnesium-based powder can, beneficially, be pure magnesium or magnesium-based alloys. Components of the magnesium-based alloys include magnesium and other elements selected from a group consisting of zinc (Zn), manganese (Mn), aluminum (Al), thorium (Th), lithium (Li), silver, calcium (Ca), and any combination there...

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Abstract

A method for fabricating a magnesium-based composite material, the method includes the steps of: (a) providing a large amount of magnesium-based powder and a large amount of nanoscale reinforcements; (b) uniformly mixing the magnesium-based powder and the nanoscale reinforcements to form a mixture; and (c) compacting the mixture at a high velocity in a protective gas to achieve the magnesium-based composite material. High velocity compaction equipment for fabricating the magnesium-based composite material includes a sealing chamber, a gas pumping device, a mold, and a hammer. The gas pumping device is connected to the sealing chamber. The mold is disposed in the sealing chamber with an aperture formed on the top thereof. The hammer is disposed in the sealing chamber and above the mold, and moving along longitudinal thereof at a controllable ramming speed.

Description

BACKGROUND[0001]1. Field of the Invention[0002]The present invention relates to methods for fabricating composite materials and equipments for fabricating the same, and, particularly, to a method for fabricating a magnesium-based composite material and equipment for fabricating the same.[0003]2. Discussion of Related Art[0004]Nowadays, various alloys have been developed for special applications. Among these alloys, magnesium-based alloys have relatively superior mechanical properties, such as good wear resistance, and high elastic modulus. Generally, two kinds of magnesium-based alloys have been developed: casting magnesium-based alloy and wrought magnesium-based alloy. However, the toughness and the strength of the magnesium-based alloys are not able to meet the increasing needs of the automotive and aerospace industries for tougher and stronger alloys.[0005]To address the above-described problems, magnesium-based composite materials have been developed. In the magnesium-based comp...

Claims

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Application Information

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IPC IPC(8): B22F3/04B22F7/02B22D17/12B22F3/02
CPCB22F3/087B22F2998/00B22F2999/00C22C1/1084C22C26/00C22C32/00B22F3/003B22F2201/02B22F2201/10
Inventor CHAN, KAM-SHAUCHEN, CHENG-SHIDU, QING-CHUNLI, WEN-ZHEN
Owner TSINGHUA UNIV
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