A surface cavitation and shot-free strengthening treatment device

Abstract

The invention provides a surface cavitation shot-peening-free reinforcement treatment device. The surface cavitation shot-peening-free reinforcement treatment device comprises a working box, adjustingand rolling devices and cavitation spray nozzles. A workpiece is mounted in the working box through a rolling shaft. The adjusting and rolling devices are mounted at the two ends of the rolling shaftand used for axial movement of the rolling shaft. The movable cavitation spray nozzles are mounted on the working box and used for implementing surface cavitation shot-peening-free reinforcement on the workpiece. Each cavitation spray nozzle comprises a shell, a fixed base and a spray nozzle body. Each shell is provided with a mixing cavity, a shrinkage passage and a transition passage in the fluid direction in sequence. Each fixed base is mounted at an inlet of the corresponding mixing cavity. Each fixed base is provided with a plurality of through holes. The spray nozzle body is mounted inan outlet of each transition passage. The surface cavitation shot-peening-free reinforcement treatment device can be used for changing a residual compressive stress layer on the surface layer of a pump flow passage component metal material through the pressure of impact waves generated by cavitation jet flow, thereby achieving the effect of improving the surface performance of a pump flow passagecomponent.

Description

technical field [0001] The invention relates to the technical field of surface cavitation strengthening, in particular to a surface cavitation and shot-free strengthening treatment device. Background technique [0002] At present, due to the long-term uninterrupted work of the pump flow components, fatigue cracks or fatigue fractures inevitably occur in the flow flow components, which leads to production stagnation and even major safety accidents. Shot peening is one of the most widely used methods to improve the fatigue life of parts in engineering. However, with the development of industrial technology, the engineering requirements for parameters such as the surface quality of pump flow parts have been continuously improved, and traditional mechanical shot peening has been unable to meet these continuously increasing requirements. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a surface cavitation and shot-...

AI Technical Summary

Problems solved by technology

However, with the development of industrial technology, the engineering requirements for parameters such as the surface quality of pump flow parts are constantly increasing, and traditional mechanical shot peening can no longer meet these continuously increasing requirements.

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