Research of Atomization Phenomena in HPDC-Step 1 Feature of Gas Porosity Dispersion and Photography of Atomized Flow

2018 ◽  
Author(s):  
Eitaro Koya ◽  
Masahiko Nakagawa ◽  
Shinya Kitagawa ◽  
Jun Ishimoto ◽  
Yoshikatsu Nakano ◽  
...  
Keyword(s):  
Gas Porosity ◽  
Atomized Flow

Study on the High Shear Degassing Process with Water Simulation

2015 ◽  
Vol 1120-1121 ◽  
pp. 1214-1219
Author(s):  
Yi Yao Kang ◽  
Yue Lin ◽  
Xu Dong Liu ◽  
Chao Sun ◽  
Sen Sen Yuan ◽  
...  
Keyword(s):  
Bubble Size ◽  
Aluminium Alloys ◽  
High Efficiency ◽  
Rotation Speed ◽  
Gas Bubbles ◽  
Inert Gas ◽  
High Shear ◽  
Gas Porosity ◽  
Water Simulation ◽  
Proper Rotation

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.

scholarly journals Reduction of Gas Porosity in Die Casting by Applying Compression

2007 ◽  
Vol 71 (4) ◽  
pp. 402-406
Author(s):  
Yoshihiko Hangai ◽  
Soichiro Kitahara ◽  
Shigeyasu Amada
Keyword(s):  
Die Casting ◽  
Gas Porosity

Unified Model for Splash Droplets and Suspended Mist of Atomized Flow

2008 ◽  
Vol 20 (1) ◽  
pp. 125-130 ◽  
Author(s):  
Shi-he Liu ◽  
Xiao-fei Sun ◽  
Jing Luo
Keyword(s):  
Unified Model ◽  
Atomized Flow
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