Great World Ventilation will specifically analyze the causes and hazards of corrosion, and understanding this information will better enable a grasp of galvanized ductwork.
Corrosion of galvanized ductwork typically manifests in several key areas: Performance Issue One: The surface of galvanized ductwork exhibits scratches, debris, and other defects. Performance Issue Two: Weld seam surfaces may appear black, with yellow or speckled spots. Performance Issue Three: Local rusting on the galvanized ductwork. The severity of corrosion in these cases increases progressively. Once this issue arises, it diminishes the ductwork's corrosion resistance and shortens its service life. For ventilation systems, it reduces their tightness, so the potential harm should not be underestimated.
The primary reasons for galvanized duct corrosion are as follows:
(1) Improper material cutting or processing methods for galvanized ductwork.
(2) Galvanized ductwork may experience corrosion during the manufacturing process, but it is not addressed in a timely manner.
(3) Incorrect selection of welding methods for galvanized ductwork, i.e., improper welding techniques.
(4) After galvanized duct welding, not promptly cleaned and followed by subsequent treatment.
