摘要
在分析泥浆阀服役条件及失效特点的基础上，设计了旋塞式结构泥浆阀，并论证了用铬钨白口铸铁代替不锈钢制造泥浆阀的可行性，生产实践证明，使用寿命显著提高，收到了良好的经济效益。
Abstract The structure of cock slurry valve was designed on the basis of analysing of the work condition and failure features of cock slurrv valve.W-Cr white cast iron，instcad of stainless steel，is used fo make the cock slurry valves the service life of the valve has been increased notably and a remarkable profit has been gained，ey Words W-Cr white cast lron，cock slurry valve
