There are still many types of cable trays, and the most common is the aluminum alloy cable tray. It is understood that the aluminum alloy cable tray is extruded from aluminum alloy, which has high dimensional accuracy, good strength, beautiful shape, lightweight, and large bearing capacity. Let's take a look at the advantages of an aluminum alloy cable tray.

Advantages of aluminum alloy cable tray

Bending performance

According to the provisions of GB/T12706 for the bending radius of copper cable installation, the bending radius of copper cable is 10~20 times the cable diameter, and the minimum bending radius of aluminum alloy cable is 7 times the cable diameter. The use of aluminum alloy cables reduces the installation layout. The space is reduced, the installation cost is reduced, and the installation is easier.

Extensibility

The elongation of aluminum alloy cables after annealing can reach or exceed 30%, which is higher than the 25% standard of copper cables.

Resilience

The resilience of the aluminum alloy cable is 40% lower than that of the copper cable, which is more conducive to the tightness of the terminal connection joint, easy to press, and improves the stability of the connection.

Corrosion resistance

The corrosion resistance of aluminum alloy cables in the air is better than that of copper. The service life of copper cables is designed for 30 years, and the service life of aluminum alloy cables can reach 40 years.

There are two main categories of aluminum alloy bridges in terms of technology:

One is the cast alloy, also known as the profile, which is a combination of integrally formed ladder edges welded to form a bridge without a backlog process. The main component of the profile is aluminum mixed with a small amount of magnesium to enhance its hardness. The advantages of aluminum alloys with magnesium as the main addition object are not only high strength but also unique high corrosion resistance, so they are also called rust-proof aluminum alloys. Its electric heat and strength are particularly outstanding.

The second type is deformed aluminum alloy, which can withstand pressure processing, has good ductility, and has higher mechanical properties than profiles. It can be processed into bridges of various specifications and shapes. But its strength, and thermal conductivity. The quality is lower than the profiles. The excellent high corrosion resistance of aluminum alloy cable tray is suitable for chemical, petrochemical and other highly corrosive environments.

Application of aluminum alloy cable tray

Aluminum alloy cable tray has excellent high anti-corrosion function, which makes it suitable for power plants, chemical industry, petrochemical and other fields, especially suitable for places with high corrosive environment. The extruded steps and rungs make the bridge frame smooth and clean, and the reasonable processing technology and connection method make the installation of the bridge frame convenient. Among them, the large-span disc straight-through can meet the bearing capacity of 6 meters. Aluminum alloy disc type bottom plate, flat plate structure or embossed stamping structure can be used as required.​

Some aluminum alloys can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance.​

Cast aluminum alloys can be divided into aluminum-silicon alloys, aluminum-copper alloys, aluminum-magnesium alloys, aluminum-zinc alloys and aluminum-rare-earth alloys according to their chemical compositions, among which aluminum-silicon alloys have simple aluminum-silicon alloys (can not be strengthened by heat treatment, and have low mechanical properties. Casting Good performance), special aluminum-silicon alloy (can be strengthened by heat treatment, high mechanical properties, good casting properties).

Conclusion

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