Cu熔体中氧化夹杂在超重力场下的运动规律  

Theoretical Analysis of Movement Rule of Oxide Inclusion in Copper Melt under Super-gravity Field

作　　者：宋高阳 董立花 王哲 孙晓琳 赵烁 Song Gaoyang;Dong Lihua;Wang Zhe;Sun Xiaolin;Zhao Shuo(College of Materials Science and Engineering,Hebei University of Engineering;College of Management Engineering and Business,Hebei University of Engineering;State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing)

机构地区：[1]河北工程大学材料科学与工程学院,河北邯郸056038 [2]河北工程大学管理工程与商学院 [3]北京科技大学钢铁冶金新技术国家重点实验室

出　　处：《特种铸造及有色合金》2021年第2期173-176,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51904086);河北省自然科学基金资助项目(E2018402098,E2020402067)。

摘　　要：对超重力场条件下Cu熔体中的氧化夹杂进行受力分析,建立夹杂颗粒沿超重力方向上的运动速度与运动距离方程,并通过理论计算分析重力系数、夹杂物特性(尺寸、种类、含量)以及熔体温度对夹杂物在超重力场中运动行为的影响。计算结果表明,超重力场能强化Cu熔体中氧化夹杂的定向分离过程,其中重力系数、夹杂物尺寸、夹杂与熔体之间密度差(固液密度差)对夹杂颗粒运动行为影响较大。较大的重力系数、夹杂物尺寸以及固液密度差均有利于夹杂物的上浮去除。The force analysis on oxide inclusion in copper melt under super-gravity field was performed,and the equations of moving velocity and distance of inclusion particle along the direction of super gravity were established.The effects of gravity coefficient,inclusion features(size,type,content)and melt temperature on movement behavior of inclusion were also investigated by theoretical calculation under super-gravity field.The theoretical results indicate that directional separation process of oxide inclusion in the melt can be intensified effectively by super-gravity field,where the gravity coefficient,inclusion size and the density difference between inclusion and melt(solid-liquid density difference)have an obvious effect on moving behavior of inclusion particle.Besides,the larger gravity coefficient,particle size and solid-liquid density difference are beneficial to accelerating the floating and removal of inclusion.

关 键 词：超重力场 Cu熔体 氧化夹杂 分离行为 理论分析 

分 类 号：TF19[冶金工程—冶金物理化学] TG146.14[一般工业技术—材料科学与工程]