在分析杂质泵护套材质要求的基础上，确定了高铬铸铁的化学成分和熔炼、铸造及热处理工艺。
Chemical composition, melting processes, casting and heat treatment of high chromium cast iron were determined according to the requirement of materials for dredge pump cover.
介绍了泥浆泵护套用聚氨酯胶的配方和制作工艺，并对预聚物中— NCO含量和MOCA用量进行了考察。
The formulation and preparation process of polyurethane for underlayer of slush pump were introduced. The effects of -NCO content of prepolymer and MOCA rate were studied.
建议：泵轴或防护套的表面硬度要达到60hrc。
Suggestion: pump shaft or protective set of surface hardness to achieve 60hrc.
应用推荐