Theoretical considerations regarding upward velocity of graphite spherical particles in pure aluminum during melting

2nd International Conference on Sustainable Engineering Techniques

工业技术（总论）

Hassan, Hazim F.^1 ; Ismael, Muna N.^1 ; Neagu, Gigel^2 ; Stefnescu, Florin^2 ; Chiamera, Mihai^2

Institute of Technical/Anbar, Middle Technical University, Anbar, Iraq^1

University Politehnica of Bucharest, Romania^2

关键词: Degree of agglomeration;    Dispersed phase;    Graphite composites;    Graphite particles;    Multiphase fluids;    Spherical particle;    Theoretical aspects;    Upward velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/518/3/032011/pdf
DOI  :  10.1088/1757-899X/518/3/032011

学科分类：工业工程学

来源: IOP

【 摘 要 】

The paper presents some theoretical aspects regarding the upward velocity of particles in the cast aluminum - graphite composites. Many types of particles are used to analyze the influence of shape factor on upward velocity in aluminum melts. The calculations were made by using modified Stokes' equation for different Reynolds number attached to graphite particles. At temperature 700-900°C the upward velocity increases about 8.5%. The viscosity of multiphase fluids depends on many factors such as: the properties of aluminum melt and complementary material; temperature of the metallic bath; concentration, shape, fineness of graphite particles and degree of agglomeration of the dispersed phase.