Hot Dip Galvanizing Plant
- Customer pickup,
- Courier
- In detail
- BrandDip
The Galvanizing Process: The basic elements to the galvanizing process:
· Surface Preparation
· Galvanizing
· Inspection/ Finishing
Surface Preparation: It is the most important step in the application of any coating. In any galvanizing process, the surface preparation process contains its own built-in means of quality assurance and quality control. Zinc simply doesn't react with a steel surface that is not perfectly clean. Surface preparation for galvanizing typically consists of three steps:
· Caustic Cleaning
· Acid Pickling
· Fluxing
Galvanizing: In this step, the material is completely immersed in a bath of a minimum of 98 pure molten zinc. The bath temperature is maintained at about 4500C. Fabricated items are immersed in the bath long enough to reach bath temperature. The articles are slowly withdrawn from the galvanizing bath and the excess zinc is removed by draining, vibrating, and centrifuging. The steel then goes into a dilute chromate quench giving the product a long-lasting luster.
Finishing: Visual inspection is considered the most important method of inspection for galvanized articles. The physical and laboratory tests performed for finished products are based on following parameters:
· Product/Service
· Thickness
· Adherence of the coating
· Uniformity of the coating
· Appearance