Let us introduce the hot dipped galvanized pipe for you. First of all, the video it’s the hot dip galvanized processing.
The black steel pipe be galvanized, then we get hot dip galvanized steel pipe, generally it need go through three main steps, pickling, galvanizing, and passivation.
First, we put the black steel pipe into the pickling tank to remove the impurities. Then dip the pipe into zinc pool for galvanizing, and then go through blowing processing to guarantee the zinc layer uniformity and through adjust the wind force to control the zinc coating thickness. Lastly Immerse the pipe into a tank filled with passivating liquid.
