We supply continuous Hot dip galvanizing (HDGL) steel cold coil to
coat zinc on it.
The continuous hot-dip galvanizing line has an in-line annealing
furnace, with an atmosphere comprised of a mixture of nitrogen and
hydrogen to avoid oxidation of the steel ,followed by a molten zinc
pot to galvanize the steel, The in-line furnace softens the steel
through an annealing process, while the molten zinc pot, along with
an air wiping mechanism, controls the application and mass of zinc
coated on the steel. The product after zinc coating is referred to
as galvanized steel, The zinc coating designations based on the
zinc coating mass, and is avalable with regular spangle and
mini-skin-passed spangle surfaces. While galvanized steel with a
regular-spangle surface finds applications in many industries,
including ducting, the product is not suitable for applications
which require painting. Mini-skin-passed spangle, which has a
uniform surface texture, is the most suitable product for painting
applications.