Galvanizing - A few photos of the galvanizing process taken at one of our galvanizers in PA.
unloading, tower sections are racked together side by side.
racking, all movement through the plant takes place using overhead cranes.
and fluxing tanks are all located on one side of the plant, whilethe
kettle is located behond the wall on the opposide end of the building. This is
to keep as much heat at possible contained to one part of the building.
first dip takes place in the pickling tanks which contains Hydrochloric acid.
tank also contains various pickling inhibitors to fully remove surface rustand
scale, and also acts as a degreaser for the steel.
40-50 minutes of soak time, the sections are lifted from the pickling tank.
vertical members seen in this photo are several 5 ft. foundation legs that
included with this run.
sections are then carried over to the next tank, which contains pure water
cleanse the acid off the surface of the steel. This takes only 10 minutes.
immersion in water, the load is carried to the flux tank, in which the steel is
into a flux solution to properly "key" the steel for the hot-dip zinc application.
the flux first applied, the 840 degree zinc would not adhere to the surface.
final dipping process, showing the sections beginning to emerge from the zinc.
kettle shown here is one of the largest in the United States, measuring 53' in
the sections rise higher, the workers use the scraping tools to clean off
drips of excess zinc from the edges and corners.
fully galvanized to ASTM-A123 & ASTM-A153 specs, after several minutes
immersion time in the zinc kettle.
of water quenching, the sections are left to cool using air temperature.
here are tower sections 2-8. The sections appear quite small compared
the size of these huge dip tanks.
it's own, this is Section 1, with a 48" face spread at the leg apexs.
shot of Section 1