When the bucket teeth are flipped and loaded into the ore, the high extrusion load is reduced to zero.Therefore, the loading mode of excavator bucket teeth is a process from small to large, and then from large to small.

The failure of excavator bucket tooth is caused by serious abrasive wear.The occurrence and development of abrasive wear are affected by two mechanisms, namely, the cutting - plough - cutting mode and the piling - rolling deformation mode.The two approaches go hand in hand.Because of the complexity of working conditions in production, there are many ways to produce and lose abrasive particles.

At present, most excavators in China still use high manganese steel. It is of great practical significance to further improve the wear resistance and economic benefits of high manganese steel.

It is an economical and simple method to increase carbon content and decrease phosphorus content.High manganese steel bucket tooth compound multi - alloying is better than single alloying.Improving casting quality is the key to improving wear resistance of manganese steel bucket teeth.

Appropriate heat treatment technology is helpful to further improve the wear resistance of rigid manganese steel bucket teeth, surface strengthening treatment is helpful to improve the wear resistance of manganese steel bucket teeth, and appropriate product structure is helpful to improve the service life of manganese steel bucket teeth.