Study on the High Shear Degassing Process with Water Simulation

Abstract:

Hydrogen as the main cause of the gas porosity in aluminium alloys should be removed before casting. The degassing process with intensive melt shearing shows a high efficiency. In the present work, the water simulation was used to study the high shear degassing process and the effect of rotation speed on the size and distribution of inert gas bubbles. The results show that with the increase of rotation speed, the bubble size decreases and the affected region becomes larger. The proper rotation speed of the rotor for the rotor-stator high shear degassing process is 5000-6000 RPM.

• Periodical: Advanced Materials Research (Volumes 1120-1121)
• Pages: 1214-1219
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.1214
• Online since: July 2015
• Authors: Yi Yao Kang, Yue Lin, Xu Dong Liu, Chao Sun, Sen Sen Yuan, Yu Bo Zuo*, Jian Zhong Cui
• Keywords: Aluminium Alloy, Degassing, Hydrogen, Intensive Melt Shearing, Rotation Speed

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