By investigating the variation of impact force and van der Waals force along with time in the collision process, mechanical analysis on mechanism of agglomeration is brought forward, which establishes the basis for advanced quantitative criterion.

• 通过考察碰撞微观形变过程中弹性力和范德华力随时间的变化规律,提出颗粒团聚和破碎机理的定性分析,为进一步得到定量判据数奠定了基础。