Is hot-dip galvanizing or regular galvanizing better for power line towers? What is the difference in investment?

2009-02-25View Original

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Is hot-dip galvanizing or regular galvanizing better for power line towers? What is the difference in investment?

Reply #22009-02-25

Galvanizing might be a bit cheaper, but the electroplating technology in China is not up to standard!

Reply #32009-02-26

Hot-dip galvanizing is better; over time it turns black and its corrosion resistance is poor. The cost of hot-dip galvanizing is about 20% higher than that of the other method, as the former has a zinc layer of around 1 mm thick which provides excellent corrosion resistance. The manufacturing process for hot-dip galvanizing is also quite complex, involving steps such as washing, phosphating, passivation, hot-dip coating, and ash washing. Due to my lack of expertise, the information provided may not be entirely accurate and is intended only for reference. In contrast, the other method involves applying a coating on the surface

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