Hot dip galvanizing, galvanizing nickel, cold galvanizing and powder electrostatic spraying are the main types of anti-corrosion coatings on the surface of cable bridge in Shandong Province. Hot dip galvanizing can cover a dense and very thick protective layer on its surface. The contact between the steel body and some corrosive substances is completely avoided, and the steel body is protected from being damaged. The new surface will produce a kind of zinc salt after a long time, which is insoluble in water and has stronger recovery. Therefore, some projects in the marine salt fog atmosphere can also play a good role in protection. At the same time, the mixture of iron and zinc produced in the heating project has higher wear resistance. There are four common galvanizing methods:

1.热浸镀锌

1. Hot dip galvanizing

镀锌作为一种牺牲阳极来保护阴极金属的方法。其耐腐蚀寿命取决于镀锌层厚度和腐蚀速率。热浸镀锌的锌层厚度一般在65um(455g/m2)以上。锌与铁的结合面形成一层锌铁合金，增强了锌层的附着力。在热浸镀锌时容易产生变形等问题，需要在电缆桥架的结构上及镀锌工艺上加以考虑。

Zinc plating is a method of sacrificing anode to protect cathode metal. Its corrosion life depends on the thickness and corrosion rate of the galvanized layer. The thickness of hot dip galvanized zinc coating is generally over 65um (455g/m2). The binding surface of zinc and iron forms a layer of zinc-iron alloy, which enhances the adhesion of zinc layer. Deformation is easy to occur during hot dip galvanizing, which needs to be considered in the structure of cable bridge and galvanizing process.

2.电镀锌

2. Galvanizing

电镀锌与热浸镀锌相比工艺简单，成本较低。对电缆桥架的结构无特殊要求。电镀锌经钝化处理后能够显着地提高其保护性能。电镀锌层一般在12/zm左右。因而不适用于耐腐蚀寿命要求较高的场合。

Compared with hot dip galvanizing, galvanizing has the advantages of simple process and low cost. There is no special requirement for the structure of cable bridge. After passivation treatment, the protective performance of electroplated zinc can be significantly improved. The galvanized layer is generally about 12/zm. Therefore, it is not suitable for the occasion with high corrosion life requirements.

3.静电喷涂

3. Electrostatic Spraying

喷涂材料一般为聚氯乙烯粉末，聚脂粉末或防腐粉末。涂层厚度在100/1rn 左右。静电喷涂具有外表美观、防化学腐蚀性能好的特点。

Spraying materials are usually polyvinyl chloride powder, polyester powder or anti-corrosion powder. The thickness of the coating is about 100/1rn. Electrostatic spraying has the characteristics of beautiful appearance and good chemical corrosion resistance.

4.涂防锈漆

4. Antirust paint

对于结构尺寸较大的构件，由于受锌锅、镀槽、烘箱等的限制，一般只能采用涂防锈漆的方法来处理。它虽然具有成本低、使用方便等特点;但防腐蚀能力较差。使用寿命短，维护工作量大。

Because of the limitation of zinc pot, galvanizing bath, oven and so on, rust-proof paint can only be used to treat the large-sized components. Although it has the characteristics of low cost and easy to use, its anti-corrosion ability is poor. Short service life and heavy maintenance workload.

以上就是山东电缆桥架在防腐上做的工作，通过上述的介绍你是不是有了一定的了解了呢。汉杰桥架厂主要有QJ系列电缆桥架分为梯式、托盘式、槽式及组合式四种。主营产品有防火桥架，不锈钢桥架、玻璃钢桥架、铝合金桥架、大跨距桥架等。

The above is the anti-corrosion work of Shandong cable bridge, through the above introduction, do you have a certain understanding? Hanjie Bridge Frame Factory mainly has QJ Series Cable Bridge Frame which is divided into ladder type, tray type, trough type and combination type. The main products are fire-proof bridge, stainless steel bridge, FRP bridge, aluminum alloy bridge, long-span bridge, etc.

山东电缆桥架的小编为大家整理的内容就先给大家介绍到这里了，欢迎大家到我们官网：http://www.sdhangfeng.com，发表您的不同意见，谢谢大家的支持！

The small edition of Shandong Cable Bridge Frame is introduced to you first. Welcome to our official website: http://www.sdhangfeng.com, to express your different opinions. Thank you for your support.