What will affect the crushing of the stone by the hammer



  The crushing process of the sand maker's wear-resistant hammer does not occur by itself and is irreversible. Therefore, it must rely on the external force on the material to overcome the cohesion between its internal particles. The size of the cohesion is very different even for the same material.

  Cohesion can be divided into two types: one is that the cohesion acts on the inside of the crystal, between the particles of the crystal, and the other is that it acts between the crystal and the crystal. The physical properties of the two cohesive forces are the same, the difference is the numerical value, the former is much larger than the latter. Its crushing process is a very complicated material size change process, mainly including material strength, hardness, toughness, shape, size, humidity, density and homogeneity, etc., and it is related to many factors that cannot be estimated. External conditions such as the interaction and distribution of material blocks at the moment of crushing are also important factors affecting the crushing process. All these factors complicate the dimensional change of the crushing process, so far it is not possible to come up with a rigorous and complete theory of reasoning to explain this process.