How to Make Galvanized Steel Coil

This video shows the automatic galvanized steel coil making process. More details: https://wzppgi.com/galvanized-steel-coil/
We mainly use hot-dipped galvanized process, which contains the following steps:

1. Clean the grease, dirt, and paint on the surface of the steel coil.
2. The coils need to be uncoiled and welded for continuous processing.
3. Rinse off the cleaning solution.
4. Put into an acidic solution to remove mill scale.
5. Wash off the pickling solution.
6. Dip the steel into the molten zinc bath and hold for a while to be galvanized.
7. Cool down and roll up the steel into coils for sale.

As the name implies, hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 500 degrees to form a zinc layer. It is the most commonly used method. It has some advantageous features:

1. The entire steel surface is uniformly covered with a zinc layer, even the corners, hollows, etc. so that the steel sheet is fully protected.
2. The cost of hot-dip galvanizing is cheap.