How to Improve the Service Life of Rotary Digging Bullet Pick
In construction piling construction projects, rotary excavators have always been known for their flexible drilling, high construction efficiency, environmental protection, and low noise. As a part of the components, the rotary excavation pick broadens the construction field of rotary excavation equipment to a certain extent. Therefore, it is necessary to prolong the life of rotary digging picks.
The failure analysis of the pick of the rotary excavator is carried out. It is considered that the main failure mode of the pick of the rotary excavator is wear and the shedding of the pick head. Poor and poor fatigue resistance.
In view of the special working environment of the rotary excavator, the working environment of the picks becomes even more special, which will easily cause the picks to fail. The cutter head falls off and wears out, etc.
It can be seen that the material selection of the pick must meet certain strength and hardness requirements, and the strength mainly refers to the bending strength and tensile strength. Of course, the pick needs to meet high impact toughness at the same time. In the research process, it is usually necessary to choose relatively high-demand materials as pick materials, and the most widely used material is medium-carbon rare-earth low-alloy bainitic wear-resistant cast steel.
