Three types of wear in the process of jaw crusher


In the process of crushing materials, huge mechanical force is needed to crush them to qualified particle size. In this process, there will be strong impact, extrusion and cutting effects between ore and jaw plate. Therefore, abrasive will produce strong wear on jaw crusher, mainly in three forms: abrasion wear, fragmentation wear and chiseling wear.
1. Scratching wear
The scratch wear of European jaw crusher is caused by the relative sliding of hard jaw and material. However, the force between them is small, and the hard jaw will not be broken, but will slide slightly on the surface of friction pair, resulting in slight scratch. There is a small amount of metal loss in the form of debris.
2. Fragmentary wear
The fracture wear of hydraulic jaw crusher is caused by the huge stress of the friction pair, which exceeds the limit strength of the hard abrasive, and the hard abrasive breaks, and causes the surface of the friction pair to pull, plastic deformation, fatigue damage or fracture, peeling, etc.
3. Gouging wear
The gouging wear of PE jaw crusher is mainly caused by the fact that the ground jaw particles have a large ultimate strength and sharp edges and corners. In addition, the friction pair has a strong stress effect on it, which results in the extremely high contact stress and impact on the surface of the friction pair material, leading to the tearing of large jaw particles or fragments on the surface of the material, forming a deep furrow or pit.
To sum up, During the use of jaw crusher, it is impacted and squeezed by the huge ore stress, and the surface bears the complex contact stress. The jaw plate will produce plastic deformation, metal rheology, brittle fracture, peeling, and material migration and loss. Therefore, regular maintenance and replacement of the jaw crusher with better wear resistance are important to improve the service life of jaw crusher effect.
As a supplier with nearly 30 years' manufacturing, Shuguang Heavy Machinery also produces and sells hammer crushers, impact crushers, vertical shaft crushers, cone crushers, compound crushers, Raymond mills, high pressure mills. Powder machine, vertical mill, ultra-fine grinding machine, ball mill, double-shaft shredder and other heavy equipment crusher. Feel free to contact us for more details.
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