Research and Practice on Casting Technology of Large High Chromium Wear-Resistant Pump Casing
The pump body parts of horizontal centrifugal pump are spiral shaped and have uneven wall thickness.It is made of high chromium cast iron Cr26,which has good mechanical properties and anti-wear properties.High chromium cast iron is prone to shrinkage defects due to its wide crystallization temperature range and poor casting performance.In the casting process design,the modular design method was adopted,and the solidification process was simulated by CASTsoft casting numerical simulation software.The possible shrinkage holes and porosity defects were predicted during the casting process,and the casting process was optimized to ensure the cast-ing quality and realize the mass production of large high chromium wear resistant pump body.
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