摘要
本文通过对行星球磨过程的分析,研究了行星球磨过程中的磨球碰撞行为,建立了球磨工艺参数(球料比、球磨转速、磨球半径)与磨球运动速度、平均自由程及碰撞频率的理论关系,结来表明:随球磨转速提高,磨球运动速度和碰撞频率将增大;装料量一定时,提高球料比,磨球运动速率和平均自由程都将减小,碰撞频率增大,装料量和球料比一定时,磨球半径愈小,磨球运动的平均自由程减小,碰撞频率增大。
By analysing the kinetics of planetary ball milling, the impact behavior of milling ball is investigated, theoretical relationships between the technical parameters of ball milling (RBP= ball to powder ratio,Ω: angular velocity of milling and rb: radius of ball) and the velocity (vb), average free path (S) and impact frequency (f) of milling ball are established in this paper, It shows that vb and f increase with increasing angular velocity of milling; keeping the mass of powders invariable,f increases with increasing RBP, however, vb and S decrease;when mP and RBP are constant, S decreases and f increases with decreasing rb.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第4期381-385,共5页
Acta Metallurgica Sinica
基金
湖北省自然科学基金