Do you know the difference between cold galvanizing and hot dip galvanizing?

There are the following differences between cold galvanized cable bridge frame and hot dip galvanizing bridge frame:

1. The production process is different. The bridge frame of cold galvanizing is obtained after repeated electrode stimulation, while hot dip galvanizing requires soaking in a zinc pot.

2. The antirust effect of electroplating is not very good, which is because the amount of zinc produced by cold galvanizing plating is less than that of hot dip galvanizing. Generally, the phenomenon of paint rust occurs around three years.

3. Process of cold galvanized cable bridge: put the steel surface into electroplating solution after chemical cleaning, which contains zinc oxide. A direct current electrode is connected to steel, and a electrode is connected to a zinc plate in an electroplating bath. Zinc is replaced on the surface of steel in molecular form after electrification. If add bright agent passivation, then reflect the color cloud shape bright plating layer.

4. Hot dip galvanizing cable processing: when steel parts are thrown into the furnace, zinc solution will form a kind of epidermis.

5. The bridge frame of hot dip galvanizing is relatively thick, so it is relatively wear-resistant and corrosion resistant. The coating of cold-galvanized bridge frame is smooth and bright, but relatively thin, and its anti-rust ability is relatively ordinary.

Cold galvanized bridge frame is made of hot dip galvanizing sheet, while hot galvanized sheet is made of hot galvanized sheet after cold rolled sheet is first processed, so you can use the bridge frame of cold galvanized process if you want to pursue aesthetic degree, you can choose the bridge frame produced by hot plating if you really want to use it stably for a long time.

On the whole, cold galvanizing and hot galvanizing have both advantages and disadvantages, but hot dip galvanizing products are more anticorrosive. The equipment used in hot dip galvanizing production is longer than cold galvanizing equipment, which indicates that choosing hot galvanizing will greatly reduce the equipment maintenance cost of the manufacturer.

Hebei annuo automation technology co., LTD., founded in 1998, is a comprehensive service company integrating environmental protection hot dip galvanizing whole production line consultation, design, manufacture and installation, with professional technical strength and strong team support, looking forward to your cooperation.