文章来源：/ 作者：电缆桥架厂家发布时间：2024-02-05 浏览次数：1
Hot dip galvanized cable tray, also known as hot-dip galvanized cable tray, is an effective metal anti-corrosion method and has been widely used in metal structural facilities in various industries. Hot dip galvanizing is the process of immersing derusted steel components in a molten zinc solution that melts at a high temperature of around 800 ℃, causing a zinc layer to adhere to the surface of the steel components. The thickness of the zinc layer should not be less than 65 for thin plates below 5mm μ m. For thick plates, not less than 86 μ M. So as to achieve the purpose of corrosion prevention.
Features of hot-dip zinc bridge:
1. The entire surface of the hot-dip galvanized cable tray is protected, and the dissolved zinc is easily and evenly covered, whether inside the recessed pipe fittings or in any corners where it is difficult for other coatings to enter.
The hardness value of the galvanized layer on the hot-dip galvanized bridge is greater than that of steel. Its resistance to impact and wear is quite good.
3. In the edge and corner areas of hot-dip galvanized cable trays, the zinc layer is often thicker than other areas, and has good toughness and wear resistance. And other coatings at this corner are often difficult to apply and vulnerable, so they often need to be maintained again.
4. Even if subjected to significant mechanical injury or other reasons. Causing a small part of the zinc layer to fall off and exposing the iron base, the surrounding zinc layer will play a sacrificial role in protecting the steel here from erosion. On the other hand, the opposite is true for other coatings. Rust will immediately form and quickly spread below the coating, causing it to peel off.
The consumption of the zinc layer on hot-dip galvanized bridge frames in the atmosphere is very slow, about 1/17 to 1/18 of the corrosion rate of steel, and it is predictable, with a lifespan far exceeding that of any other coating.
6. The lifespan of hot-dip galvanized cable trays is mainly determined by the thickness of the coating in a specific environment. The thickness of the coating is determined by the thickness of the steel, that is, the thicker the steel, the easier it is to obtain a thicker coating. Therefore, thicker steel parts in the same steel structure must also receive a thicker coating to ensure a longer lifespan.
7. Due to its aesthetic and artistic appearance, or when used in specific severely corrosive environments, the galvanized layer can be further coated with a duplex system. As long as the paint system is selected correctly and easy to apply, its anti-corrosion effect is 1.5-2.5 times better than the combined lifespan of individual painting and hot-dip galvanizing.
8. Hot dip galvanized cable trays are widely used, have good anti-corrosion effects, and have good economic benefits.