Erosion in the nozzle inlet end face wear play a major role

From the nozzle wear mechanisms and effects of two parts for rotary drilling abrasive jet conducted exploratory research. Through  polycrystalline diamond  analysis, the rotating abrasive jet nozzle wear plays a decisive role in the abrasive wear and erosion. Where  cutting tools  is the main form of the nozzle inner wear, and erosion in the nozzle inlet end face wear plays a major role, and were the two wear mechanisms were discussed.  synthetic diamond  method analysis of the stress state in the nozzle. The results showed that: the maximum stress in the nozzle cone section at the beginning of the end of the straight section, the stress cone section is smaller and showed an increasing trend, the average stress is greater than the straight section cone section, in addition to the entrance face of stress as well.