An online continuous plating process comprises placing a
raw material black
steel belt on an uncoiling
machine, shearing an initial portion of the
steel belt through an automatic shear
welding machine, performing
lettering, performing adjustment through a flat supporting frame and an adjustment frame, entering a spiral loop feeding
machine to perform adjustment control on the feeding speed and performing
high pressure water washing, rolling pressure forming and
high frequency welding after passing through a high supporting frame;
cutting protruding welds which are formed at the
welding position; removing the residual water on the inner wall of a steel
pipe through an air cutter, enabling
zinc-rich paint to uniformly coat the inner wall of the steel
pipe through a spraying gun, performing
pickling and preheating and simultaneously baking the
zinc-rich paint in the steel
pipe; immersing the liquid
zinc to the outer surface of the steel pipe through a zinc pump to form the zinc bonding, performing X-
ray cooling, performing an online
eddy current inspection test, flowing into a
sizing unit to shape, performing
chrome plating treatment, performing a UV (Ultra Violet)
coating process, performing
drying and
cutting, performing end chamfering end-flatting and inkjet coding and performing automatic packaging. According to the online continuous plating process, the online continuous pipe production and zinc plating is adopted and accordingly the production efficiency can be improved, the labor cost is reduced, the product flexibility is high, and the product competitiveness is improved.