The plan of 17-4PH steel valve seat is shown in the figure. The routine processing procedure shall be blank forging solution treatment, rough processing, aging treatment and finishing. In order to reduce manufacturing costs, aging treatment can be carried out before rough machining, that is, solution and aging treatment are carried out continuously, and rough machining and finish machining are carried out continuously. The workpiece is processed by the rough machining and finishing process of billet forging solution treatment and aging treatment. The processing sequence is ① rough turning the internal and external dimensions, and 2mm allowance is reserved at the R162mm ball. ② Finish turning to complete the size of each part, and the ball R162mm leaves grinding allowance. ③ Rough grinding and fine grinding complete R162mm ball size processing.

Second, it is more convenient and simple. The structural design of the electric ball valve itself is not very complicated, and it is convenient to use now. However, the pursuit of this aspect is endless. We can see that the structure of ball valve products is not more and more complex, but more and more simple. Because only the simpler the structure is, the more stable the structure will be, and it is less prone to errors in the work process. Simplification and simplification of each component requires a lot of time and research, In the future, we have reason to believe that these ball valve products can become simpler and more perfect, and can bring more convenient and more favorable simple operation mode.