Contact analysis for prick valve

A common prick valve's contact pressurize mechanism which used in contact pressurize in the field of hydraulic is introduced.Based on researching contact Finite Element Analysis theory,a contact analysis prick valve pressurize through ANSYS is achieved.The result suggests that the maximal contact stress of prick valve is allowed when the pressure range is from 1 MPa to 25 MPa.It is proved that the pressurize performance of prick valve is good and the variables in valve core gained from analysis are same with experiment data in lab.It shows that this analysis is credible.This credible analysis method for prick valve's design and application in contact pressurize is introduce in this paper too.