What is the difference between hot-dip galvanizing and electro-galvanizing in galvanized corrugated nails?

What is the difference between hot-dip galvanizing and electro-galvanizing in galvanized Roofing nails? What is the specific process, I will give you a detailed introduction below.

1. Hot-dip galvanizing is carried out in a state where zinc is also liquefied. The corrugated nails are placed in a layer of liquefied zinc solution. At high temperatures, the iron and zinc on the surface of the corrugated nails dissolve to form an alloy layer. With this time, the surface layer Zinc ions slowly diffuse into the iron, and eventually all cover the paste. The zinc solution layer on the surface will become a zinc layer after cooling.

2. Electro-galvanizing uses the movement of the positive and negative ions of the electrode to galvanize. The positive and negative electrodes of the zinc solution in the liquefaction are connected with the negative electrode of the corrugated nail, and the anion will move to the positive electrode under the action of the current. The corrugated nail itself is made of steel, zinc It forms a micro-battery with steel during electroplating, and the corrugated nail steel body is protected by the cathode to form a plating layer.