As Scientific and technological progress, the knowledge of crushing principle enriched. To meet the requirements of all kinds of technology, great materials can crushed into several micron sizes with different methods. Non-machinery crushing ways still exist in nowadays industry. Materials are crushed by extrusion, bend and impact force in eccentric cone crushing chamber. In the crushing chamber, materials are extruded by great force, and when the force exceeds the cohesion between particles the materials get crushed. At present, the widely used crushing way in recent industry are extrusion, fracture, grinding and impacting.

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