Annealing is the next process. In the annealing furnace, heat cycle is applied to obtain the required mechanical properties and activate the surface with a reducing gas, which makes it easy to coat zinc on the strip surface.
After that, Zinc plating is done through a zinc pot after annealing process in order to secure processability and the quality of the material of the final product. The amount of plating shall be adjusted to the customer request by air blowing (air knife) located above the pot.