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PE Jaw Crusher can crush many different ores and rocks
PE Jaw Crusher can crush many different ores and rocks whose compression strength between 147 to 245 Mpa to coarse, medium, and fine crushing. It is the biggest broken equipment.
The analysis of Jaw crusher’s working principle. The upper part of movable jaw plate combines with eccentric shaft, and the lower part is supported by thrust plate, however, fixed jaw plate is bounded on machine frame. When the eccentric moving, movable jaw plate is pressed by materials, and fixed jaw plate is mainly exposed to the material sliding cutting action. Through failure analysis, we conclude that blocking the damage mechanism of jaw is that the repeated extrusion comes from the materials to jaw can cause abrasion, and the short-range sliding comes from materials can lead to wear and tear. In order to improve the usage of jaw, we should mainly consider the hardness and toughness of materials. If the materials have high hardness, the depth of jaw pressed into jaw is shallow，so that the surface deformation is small. At the same time, the amount of abrasive sliding comes from materials is small. Besides, materials should have a certain toughness，so that can prevent the occurrence of fracture during the extrusion process to make sure the normal usage of jaw.
Jaw plates materials
The high-manganese steel is the traditional material of the jaw crusher. It has good shock load capability, but because of unreasonable structures of crusher, the angle between the fixed jaw plate and movable jaw plate is too large, which is easy to cause materials’ sliding. Low surface hardness is due to strain hardening is not fully leaving the jaw, the materials short-cutting leads to the damage of jaw. In order to improve the usage of jaw, we delve into many kinds of materials for jaw, such as Cr、MoW、Ti、
Commercial chromium rely iron has high wear resistance，however, because of the toughness is poor , so high chromium cast iron jaw is not necessarily made good effect. In recent years, we use high chromium cast iron cast-bonding in high-manganese steel jaw plate to form a complex jaw, whose relative density tolerance is up to three times more, which made the usage of jaw improved highly. This way is also a effective one to improve the life of jaw, but the process is very complex, so it is difficult to complete.
Middle carbon low-alloy cast steel is also a wear-resistant materials,because it has High hardness (≥ 45HRC) (a ≥ 15J/cm) matched with the appropriate toughness, the material can resist cutting and repeated extrusion caused by fatigue sapling, so it has good wear resistance. Besides, middle carbon in low alloy cast steel through the adjustment of the composition and heat treatment process, which can make the toughness and hardness change in a large range, so that can meet different production conditions. It contains 0.4～0.8C、0.7～
DSMAC has PE Jaw crusher and other crushers, which use the advanced international crusher technology，manufacturing level, and quality of material. We have sold thousands of machines around the world, which received the good evaluation from our clients, welcome to call us and communicate with us.
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