The present invention provides an
electroplating apparatus and method for prolonging the service life of a circulating
electroplating solution by isolating external
oxygen. The apparatus includes: an open
electroplating tank; a sealed
liquid storage tank with electroplating solution stored therein, injected with N2 and maintained at a preset pressure; a
liquid injection,
reflux and overflow pipeline connecting the electroplating tank and the
liquid storage tank, with U-shaped liquid seals provided on both the
reflux and overflow pipelines; an N2 pipeline for providing an
oxygen-
isolated environment for the electroplating solution
reflux channel; a bypass
pneumatic valve for opening after the N2 pipeline releases N2 to balance the N2 pressure in the
liquid storage tank. The present invention innovatively proposes a brand-new open electroplating tank body device structure and electroplating solution circulation
system. By controlling the N2 pipeline and using the U-shaped liquid seal, the air in the reflux and overflow pipelines can be discharged and the overall
system can be helped to isolate air and
oxygen. With the help of the bypass
pneumatic valve, etc., the pressure generated by the input of N2 into the
liquid storage tank can be balanced, enabling the reflux electroplating solution to flow back to the
liquid storage tank by gravity. Moreover, the maintenance of the N2 pressure in the
liquid storage tank can maintain a zero or
low oxygen environment.