▎ 摘　　要

NOVELTY - The utility model claims a graphene RFID antenna manufacturing nozzle sealing device, the nozzle comprises a main body forming a spraying cavity; the spraying cavity is provided with a feeding port connected with the storage cylinder and a discharging port connected with the outside, the nozzle further comprises a vacuum piece connected with the spraying cavity and the outside, the vacuum piece sucles the gas in the spraying cavity to make the pressure at the inner side of the discharging port less than the pressure at the outer side of the discharging port; pumping the gas in the spraying cavity through the vacuum piece, and the feeding port and the discharging port of the spraying cavity are provided with slurry for sealing, so the air pressure in the spraying cavity will be less than the external air pressure, the slurry at the discharging port plays a supporting role, preventing the slurry at the discharging port from falling to the finished electronic circuit; improving the stability of the finished electronic circuit.