Modeling and Simulation Analysis on Based on Digit Combined Valve System for Vacuum Differential Pressure Casting
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Key Words：Vacuum differentialpressure casting; Mechanismanalyzing method; Modeling; Simulation analysis
Abstract：The relationship between the changes of the air receiver initial pressure and the ladle pot pressure with the bulk and initial pressure of each pot and the sectional aera of communicating pipeafter appling step signals to the valve is studied using the theory of engineering fluid mechanics.A mathematic model of the pressure changes in the casting pot is established by the analytical method,and the influence of each parameters on the pressure changes in the casting pot is analyzed.Not only providing the theory basis for the engineering design of vacuum differential pressure casting equipment ,but also laid the foundation for accurate implementation of the vacuum differential pressure casting system.
