How to prevent cable tray from being corroded? What are the methods?

Cable tray is one of the common equipment in our daily life. 

Based on its own advantages, Cable tray supplier connect cables to buildings that can be supported and fixed, or to independent supporting cables. 

It can play a good role as the skeleton of the cable. 

Because some cable trays are exposed outdoors, some cable trays will inevitably be corroded. 

So what measures should we take when the cable tray is corroded? 1. Hot-dip galvanized cable tray technology zinc has good corrosion resistance. 

As a way to protect the cathode metal by dedicating itself to the anode, the life of zinc dipping depends on its corrosion resistance and corrosion rate. 

The thickness of the zinc layer in hot-dipping zinc is usually more than 6m, and the interface between zinc and iron forms a layer of zinc-iron alloy, which improves the adhesion of the zinc layer. 

Air exposure tests of hot-dip galvanized coating in different environments have been carried out abroad. 

From the test results, the hot-dip galvanized layer can meet the service life requirements of the cable tray. 

Hot-dip galvanized steel bridge has been widely used at home and abroad because of its excellent corrosion resistance, high performance and price ratio. 

Hot-dip galvanizing is not easy to deform, which needs to be considered in the cable tray structure and galvanizing process. 

The bridge with other coatings has poor UV resistance, which is easy to cause corrosion and form a large area of coating blistering and spalling, which is usually not suitable for field application. 

2.Compared with hot-dip galvanizing, galvanized cable tray technology has the advantages of simple process, low cost and no special requirements for cable tray. 

After passivation treatment, the anticorrosion performance of galvanizing is significantly improved. 

The galvanized coating is generally about 6m, which is not suitable for the occasions with high corrosion resistance life. 

China has issued zinc plating standards, such as GB/T13912-2002, JT/T281-95, GB2694-81 and so on. 

When choosing the electroplating layer, the thickness and adsorption of the coating are very strong. 

Through the corrosion resistance test, there are different requirements for the selection of targets. 

According to national standards, China's galvanized bridge manufacturers are different. 

The high passivation treatment after galvanized nickel alloy or galvanized can significantly improve the corrosion resistance of the bridge. 

3.Powder sprayed Cable tray supplier technology PVC material is usually powder coating, polyester powder or anticorrosive powder, and the coating thickness is about 60%. 

M .Electrostatic spraying has beautiful appearance and excellent chemical corrosion resistance. 

However, compared with the metal coating, it has low adhesion, poor stain resistance and wear resistance. 

Due to a simple external impact, the local coating may fall off, resulting in internal steel corrosion, forming a large area of coating blistering and spalling. 

Bridges with UV coating are usually not suitable for outdoor use. 

4. The cable tray coated with antirust paint can only be treated with antirust paint because of the limitation of galvanizing equipment. 

It has the advantages of low cost and convenient operation, but the anticorrosive performance is poor. 

Its engineering life is short, so it is not suitable to use in order to ensure the quality of the project. 

Whether in the coastal areas with high humidity or high air sulfur dioxide index, aluminum alloy bridges have been widely used in our country. 

The raw material of the cable bridge is aluminum alloy Cable tray supplier. The atmospheric exposure test results show that the cable bridge has significant advantages in corrosion resistance, especially the anodic alumina corrosion, the effect is very good.