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The erosion wear of the valve spool in an electro-hydraulic control system was studied numerically in this paper. The prediction mathematical model was established on the basis of studying the erosion wear characteristics of the valve spool under different opening degrees and fluid motion parameters, and the erosion wear mechanism and wear law of the valve spool were summarized. The results show that the average wear rate of the valve spool surface increases with the increase of erosion velocity. The average wear rate of the spool surface decreases with the increase of particle diameter. The mass loss rate of the valve spool is related to the opening and the flow parameters of the valve port. The wear rate is positively correlated with the flow velocity and negatively correlated with the particle diameter and the hardness of the valve spool.
He et al. (Mon,) studied this question.
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