Most of the cable trays used in Jinan basket tray are hot-dip galvanized basket tray and cold-dip galvanized cable tray. The application scenarios of the two cable trays are different, resulting in great differences in processes, but most consumers don't know the difference. They just let us use what kind of basket tray to increase profits. They gave us a popular science and explained the differences between the two cable trays currently used.
There are five main differences between hot-dip galvanized basket tray and cold-dip galvanized cable tray:
1. Process of cold galvanized cable tray: put the steel surface into the electroplating solution after chemical cleaning, and the electroplating solution contains zinc oxide. One end of the direct current is connected to the steel and the other end is connected to the zinc plate placed in the electroplating solution. After power on, zinc is replaced to the steel surface in molecular state. If the brightener is added for passivation, the color cloud like bright coating will be reflected.
2. Process of hot-dip galvanized basket tray: the process and method of immersing steel parts or castings in molten zinc to form zinc-iron alloy or zinc and zinc-iron alloy coating on their surface.
3. Hot dip galvanized basket tray has thick coating and strong corrosion resistance. The galvanized layer of cold galvanized basket tray is brighter than that of hot galvanized basket tray, but it is thinner and has weak corrosion resistance. Generally, the cold galvanized basket tray is processed into a basket tray with hot-dip galvanized plate, and the hot-dip galvanized basket tray is processed first and then hot-dip galvanized with cold-rolled plate.
4. The main reason is that the production process is different. The hot-dip galvanized basket tray is obtained in the zinc pot solution, and the cold galvanized basket tray is obtained by electric reaction.
5. Generally, the anti rust effect of the electro galvanized basket tray applied to the steel structure is not very good, mainly because the amount of galvanizing can not be reached, and the galvanizing is uneven. Generally, rust occurs in two or three years, and the poor quality will rust after being exposed to the humid environment for more than ten days.
Generally, two different cable trays have their own advantages, and each is suitable for different scenarios. It can't be said that hot-dip galvanized basket tray is bad or cold galvanized basket tray is bad, but it is also necessary to understand the differences between the two cable basket trays.