Novel manufacturing process of impeller

Abstract

The invention relates to a novel manufacturing process of an impeller. The novel manufacturing process is characterized by comprising the following specific process steps of S1, carrying out 3D printing on an impeller prototype; S2, manufacturing a casting system with a riser to form a module; S3, manufacturing a shell; S4, dewaxing and demolding treatment; and S5, carrying out casting molding. According to the novel manufacturing process of the impeller, compared with a traditional casting or forging method, the method has great advantages that a corresponding mold is needed when the castingor forging method is used, raw materials and time are wasted, the tedious procedures are omitted through the 3D printing technology, computer related software can be helped to directly generate the impeller, and any complex impeller can be quickly printed, so that the generation period is shortened, the cost is reduced, the advantage of greatly reducing the raw material loss in the research and development process is achieved, meanwhile, the impeller produced by using the process can greatly improve the overall shock absorption and noise reduction capabilities of a pumping set, actual production reference is provided for the rapid low-pressure investment casting production process of castings, and the feasibility of the process is verified.

Description

technical field [0001] The invention relates to the technical field of impeller manufacturing, in particular to a new impeller manufacturing process. Background technique [0002] The impeller is a key part of turbines, steam turbines and other devices. It is widely used in aerospace, ship machinery, and petrochemical fields. The spatial structure of the overall impeller is relatively complex, and the blades are relatively twisted. Therefore, the rough and fine machining of the inner flow channel and blades It has always been a difficult point in the field of manufacturing. The quality of the impeller directly affects the vibration, noise and quiet effect of the turbine unit or steam turbine unit and other devices. [0003] The traditional casting method commonly used for metal castings is sand casting. Due to the large number and wide distribution of impeller casting blades and complex shapes, it is not easy to directly design sand molds for them. If sand cores are designe...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new impeller manufacturing process, which can solve the problem of wasting raw materials and wasting time in traditional casting or forging methods

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