▎ 摘　　要

NOVELTY - The device has a medium memory provided with multiple separated storage cavities that are provided with graphene. The storage cavity is provided with a first stirrer. The storage cavity is connected with a mixing chamber through a jet channel. The mixing chamber is connected with the medium memory and a nozzle. The storage cavity is provided with a second stirrer. The nozzle is provided with a hollow cavity and connected with the mixing chamber. The nozzle is located above a lifting platform. A control device controls operation of the first stirrer, the second stirrer and the lifting platform. A sealing piece is set between the adjacent storage cavities. The nozzle is rotatably connected with the mixing chamber. USE - Used as jet strengthening device. ADVANTAGE - The device can realize the mixing jet strengthening of any liquid and graphene, so that the surface quality and fatigue strength after strengthening are better. The control device can realize the automatic control of strengthening, improves the strengthening efficiency and the operation is simple and convenient to adjust and maintain. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for method for strengthening jet. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the jet strengthening device.