New Product Development: Screw Pump Rotor

Processes involved: Coated sand shell casting/heat treatment annealing/machining/heat treatment quenching
Application: Sprayer
Material: Cr18 high chrome cast iron

After three months of unremitting efforts, we have completed the trial production of a new product screw pump rotor. The surface hardness of the material can reach about HRC62 after quenching, the surface requires no sand holes and no air holes, and the surface finish needs to reach Ra3.2 or above. This is a very high requirement for our casting process. After trying many kinds of casting systems, we finally found the best casting method at all costs. Finally, the sample delivery was completed within the specified delivery period, which was recognized and appreciated by the customer!