对采用模型座环挂装蜗壳的工艺进行了分析和研究 ,首次总结出了替代真机座环挂装蜗壳的工艺方法 ,并经实践验证了这种工艺方法的可行性。并提出了在无真机座环的情况下完成蜗壳挂装的切实可行的方案 This paper analyzes and researches on the process of using the model seat ring to mount the volute. For the first time, the method of replacing the volute of the real seat ring is summarized and the feasibility of this method is verified. And put forward the feasible case of completing the volute hanging in the case of non-genuine seat ring