For a long time, theoretical perspectives grinding process regular cone crusher but builds on the kind of classical mechanics; the researchers sought to minimize energy consumption generated from new surface, and did not take into account the material is actually made up of many different phase composition, such as different phases in the rock is the mineral crystals in plants is fiber, metal and ceramics are ceramics and the like.

Cone Crusher

In order to analyze the concept of real crystal broken solid state physics, the establishment of a multi-theory polycrystalline aggregates selective dissociation process, which is caused by micro-cracks Oro bit Griffey new text of a fault hypothesis and Liebinjiefu theory developed. They think:

(1) solid actual strength low compared with the theoretical value of two or more orders of magnitude, this is a problem because the solid microcracks, resulting in internal stress concentration. For example, 0.1 can crack 100 times lower body strength, deep 1Oyrn crack, can reduce the intensity of objects 1,000 times.

(2) the strength of lattice defects and solid plastic mechanism with which there is linked, that is, different types of dislocation, as the root of the crystal structure of the book as a weak effect, a lot of material in the plastic deformation of the implementation group is due to the crystal along edge or screw dislocations relative sliding. Edge dislocations in the sliding surface extend in a direction perpendicular to the sliding vector. Their movement is similar to displacement along the carpet wrinkles than moving the entire carpet easy to implement. Screw dislocations arranged vertically sliding surface, but parallel to the sliding direction of the vector, the motion of screw dislocations in the bottom section of the equivalent edge shift in the nature of the cardboard.

(3) to be considered when determining the solid strength of destruction causes microscopic stress due to the dislocation caused by the accumulation of stress due to the macro focus and concentration caused cracks such defects. When the corresponding component of shear stress reaches a critical value of fixed dislocations start to slide, irregular material damage when sharply exceeded this threshold.