Most of the cable trays used in Jinan cable tray are hot-dip galvanized cable 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 cable tray to increase profits. They gave us a popular science and explained the differences between the two cable trays currently used.

热镀锌电缆桥架和冷镀锌电缆桥架主要有以下五点区别：

There are five main differences between hot-dip galvanized cable tray and cold-dip galvanized cable tray:

1.冷镀锌电缆桥架的工艺过程：将钢材表面化学清洗处理后放进电镀液中，电镀液含氧化锌。直流电一端接钢材，一端接放在电镀液中的锌板。通电后锌以分子状态置换到钢材表面。如果加光亮剂钝化，则体现彩云状光亮镀层。

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.热镀锌电缆桥架的工艺过程：将钢件或铸件浸入熔融的锌液中在其表面形成锌 — 铁合金或锌和锌 — 铁合金覆盖层的工艺过程和方法。

2. Process of hot-dip galvanized cable tray: the process and method of immersing steel parts or castings in molten zinc to form zinc ferroalloy or zinc and zinc ferroalloy coating on their surface.

3.热镀锌桥架镀层较厚，抗腐蚀能力较强。冷镀锌桥架镀锌层较热镀锌桥架光亮，但较薄，抗锈蚀能力较弱。一般冷镀锌桥架是用热镀锌板加工成桥架，而热镀锌桥架是冷轧板先加工后热镀锌成的。

3. Hot dip galvanized bridge has thick coating and strong corrosion resistance. The galvanized layer of cold galvanized bridge is brighter than that of hot galvanized bridge, but it is thinner and has weak corrosion resistance. Generally, the cold galvanized bridge is processed into a bridge with hot-dip galvanized plate, and the hot-dip galvanized bridge is processed first and then hot-dip galvanized with cold-rolled plate.

4.主要是生产工艺不同，热镀锌桥架是在锌锅溶液中通过，冷镀锌桥架是通过电反应获得。

4. The main reason is that the production process is different. The hot-dip galvanized bridge is obtained in the zinc pot solution, and the cold galvanized bridge is obtained by electric reaction.

5.应用在钢结构上的电镀锌桥架一般防锈效果都不是很好，主要是镀锌量达不到，而且镀锌不均匀，一般两三年就出现生锈现象，质量差的暴露在潮湿环境中十几天就生锈了。

5. Generally, the anti rust effect of the electro galvanized bridge 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.

通常，两个不同的电缆桥架各有优点，每个都适用于不同的场景。不能说热镀锌桥架不好，或冷镀锌桥架不好，但了解两个电缆桥架的不同之处也很有必要。

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 bridge is bad or cold galvanized bridge is bad, but it is also necessary to understand the differences between the two cable bridges.

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This article is provided by Shandong cable bridge. Our website is: http://www.sdhangfeng.com We will serve you with wholehearted enthusiasm. Welcome to visit