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Effects of sliding motion on jaw plate wear

Under compression as the energy intensity increases, there are three types of fracture mechanisms are observed as is illustrated in figure . The particle fracture mechanism in jaw crusher chamber is the mixture of the cleavage and the abrasion . The abrasion fracture is caused with the localized too much energy input to the area directly under the loading points and the friction between the jaw plates and the particle. The induced tensile stress results in the cleavage fracture. The breakage process due to the point contact loading that occurs between the plates of a jaw crusher and a particle.

Theoretically a particle is crushed in side a crusher when it is compressed and fails in tensile stress. But in actual practice these particles also undergo slipping motion between the jaw plates . It is due to the vertical movement of the swinging during the working cycle. Sometimes the particles also exhibit rolling motion that depends on the the geometry of the fed material and the crushing zone. As the sliding motion between the jaw plates and the particle has considerable affect on the jaw plates wear, the consequences due to sliding motion is studied here.

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