Fabrication of Rheological Material by Rotating Gas Bubble Stirring

Abstract:

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A rotating gas bubble stirring technique with specially designed equipment has been developed for the production of light alloy semi-solid slurry. The equipment was specially designed to have temperature, rotation speed and gas flow rate control functions. An Al-Si aluminum alloy was applied as the experimental material. The results showed that large volume of semi-solid slurry could be achieved with the actual stirring temperature of 4 °C to 20 °C below the liquidus temperature of the alloy, and the rotation speed of 195 r/min, and the gas flow rate of 2 L/min. A strong convection and weak stirring effect which was induced by the rotating gas bubbles in the melt was founded responsible for the formation of the semi-solid slurry.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

1573-1576

DOI:

10.4028/www.scientific.net/AMR.239-242.1573

Citation:

L. Zhang et al., "Fabrication of Rheological Material by Rotating Gas Bubble Stirring", Advanced Materials Research, Vols. 239-242, pp. 1573-1576, 2011

Online since:

May 2011

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Price:

$35.00

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