Production Process Of Galvanized Steel Sheet

Released on Oct. 17, 2018

The Galvanized Steel Sheet is coated on the continuous unit with cold-rolled strip steel, galvanized steel strip (electro-galvanized and hot-dip galvanized) as a substrate, subjected to surface pretreatment (degreasing and chemical treatment), and coated by a roll coating method or The multi-layer liquid coating, which is obtained by baking and cooling, is a coated steel sheet. At present, there are back (bottom) paint and face (front) paint coatings in China. Generally, there is one layer of back paint and two coats of top coat. The top coat of our factory can be three layers. Foreign business topcoats are two coats. Since the coating can have a variety of different colors, it is customary to refer to a coated steel sheet as a color coated steel sheet.

Color Coated Roofing Sheet process:

The common two-coating two-bake continuous color coating unit process main production process is: uncoiler ------- sewing machine ------ pressure roller ------ tension machine --- -Opening looper-----alkali-eluting grease------cleaning----drying-------passivation-------drying------initial 涂-------Initial coating drying ------Topcoat finishing _ Topcoat drying ------Air cooling and cooling ------Rewinding Set-----winding machine-----(the next volume is packaged into the warehouse).

Galvanized Steel Sheet