Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

The products can be widely used in construction, energy, power, plant.

Why does the appearance of hot-dip galvanized cable bridge blister

Release time:

2024-01-03

In order to extend its service life, some perforated cable trayobserved customers will find that there are only

In the process of bridging, the galvanized layer is usually treated on the outer surface of the cable slot.
In order to extend its service life, some perforated cable trayobserved customers will find that there are only a few small bubbles on the galvanized coating.
What is the cause of this bubble?
Today, let's look at it.
Due to the influence of the original data of galvanizing, bubbles will be produced.
two。
Affected by the appearance of the original data.
Strictly remove oil before galvanizing.
When the parts enter acid, alkali, salt and inorganic substances in the processing process, these impurities will cause bubbles in the zinc layer, and the data selection is also appropriate and important.
It is required to select data with good appearance, no micropores, mixed pits and corrosion.
The stress concentration will be formed during the processing of the cold-rolled plate, and it will also cause blistering of the zinc layer.
If necessary, tempering treatment should be stopped.
When galvanizing, the light and passivation solution are not clean and incomplete, and remain in the coating, and bubbles will be produced after baking.
The selection of hot-dip galvanized bridge should meet the following requirements: when a large number of all-plastic cables are exposed, or when the cable spans a long distance, and the high-voltage cable is arranged in a serpentine shape, the perforated cable tray should be used.
The metal bridge system should have reliable electrical connection and grounding.
If the FRP bridge is used, a special grounding wire should be laid along the full length of the bridge.
For steel cable bridges with dense configuration sites or large-capacity power plants and other important lines, appropriate anti-corrosion treatment methods should be selected according to the engineering environment and durability requirements, and high-durability anti-corrosion treatment such as hot dipping galvanizing should be adopted in strong corrosion environment.

Keywords：

What should be paid attention to in the process of laying cable tray

How to avoid the corrosion of aluminum alloy cable tray by the outside world

What should be paid attention to in the process of laying cable tray

How to avoid the corrosion of aluminum alloy cable tray by the outside world