【摘要】 研究了球磨参数对NiFe2O4尖晶石粉料的颗粒粒径的影响·通过计算确定了试验所需钢球尺寸,在此基础上,进行正交试验选择合适的参数·试验结果表明,球磨时间是影响粒径的主要因素,而研磨体级配对粒径分布范围有较大影响·确定合适的球磨参数为:球磨时间36h;研磨体级配35∶40∶25;料球比1∶2;球磨介质的体积分数为75%·更多还原

【Abstract】 Investigates the effect of ball milling parameters on the particle size of powdered NiFe₂O₄ spinel. Based on the ball size that was calculated to meet the requirement for lab test, a series of orthogonal tests were carried out to select parameters appropriate to the ball milling process. Test results showed that the duration of ball milling process is the predominant factor to the particle size, and the ball size grading also has an important effect on the distribution range of particle size. A set of optimum parameters for such a ball milling process is thus recommended as follows. Time required for ball milling: 36h; ball size grading: 35∶40∶25; mass ratio of the stuff to mill to the ball: 1∶2; and the volumetric percent of water contained in slurry:75%.更多还原