Railroad spikes Surface galvanizing

Hot-dip galvanizing is one of the most common methods of galvanizing for railroad spikes. This method involves dipping the spike into a molten zinc solution to metallically bind the zinc to the spike matrix to form a solid zinc layer.
The advantages of hot dip galvanizing include uniform zinc layer thickness, strong adhesion and good corrosion resistance.
In the hot dip galvanizing treatment, it is necessary to strictly control the temperature of the zinc solution, the zinc dipping time and the residence time of the spike in the zinc solution to ensure the quality and performance of the zinc layer.

Electroplating galvanizing is another commonly used galvanizing method, which involves depositing zinc ions on the surface of the spike by an electric current in an electrolytic cell.
Advantages of galvanizing include the ability to precisely control the thickness and uniformity of the zinc layer, as well as suitable spikes for complex shapes.
However, the cost of electroplating galvanizing is usually higher than that of hot-dip galvanizing and requires more complex equipment and operating processes.