Correlation of Size Reduction Rate of Inorganic Materials with Impact Energy of Balls in Planetary Ball Milling

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Hiroshi Mio¹  Fumio Saito¹  Junya Kano¹ 

[1] Institute for Advanced Materials Processing, Tohoku University

关键词: Grinding;    Simulation;    Planetary Ball Mill;    Motion of Balls;    Impact Energy;   

DOI  :  10.1252/jcej.32.445

来源: Maruzen Company Ltd

【 摘 要 】

References(8)Cited-By(27)Room temperature grinding of four kinds of powder materials chosen based on their grindability was conducted using a planetary ball mill, in which the powder is charged in different amounts besides media balls. The median diameter of the ground materials was monitored to experimentally determine the size reduction rate. The size reduction rate of each material is proportional to specific impact energy of the balls simulated by the PEM (or called DEM). The gradient of the straight lines for each material in the prescribed relation is correlated to a net work index, which is calculated by substituting the impact energy of balls into the term of energy in Bond’s equation. The relation between gradient and net work index is also expressed by a straight line in normal coordinates. Therefore, the size reduction rate can be estimated by introducing a specific impact energy simulated by the PEM.

【 授权许可】

Unknown