As a device for carrying and protecting cables, Shandong cable tray makes wiring safe and beautiful in buildings, easy to maintain, and widely used in civil and industrial buildings. The cable tray becomes the main part of the cable tray with its good mechanical strength and bearing capacity. However, in some harsh acid, alkali and humid environments, corrosion resistance has become an important factor to be considered when using or not using cable trays. Due to the different environments in which cable trays are used, the anti-corrosion methods used on their surfaces are also different. What are the common anti-corrosion methods for cable trays in Shandong?

山东电缆桥架

Shandong cable tray

1、电镀锌。

1. Electro galvanized.

与热镀锌相比，电镀锌工艺简单，成本较低。对山东电缆桥架的结构没有特殊要求。钝化处理后，镀锌层的防护性能得到显着提高。电镀锌层稍薄，不适合耐腐蚀寿命要求高的场合。

Compared with hot galvanizing, electro galvanizing is simple in process and low in cost. There are no special requirements for the structure of Shandong cable tray. After passivation treatment, the protective performance of the zinc coating has been significantly improved. The galvanized layer is slightly thin, which is not suitable for occasions with high corrosion resistance life requirements.

2、热浸镀锌。

2. Hot dip galvanizing.

在大气条件下，锌具有良好的耐腐蚀性。镀锌是一种通过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的厚度和腐蚀速率。热镀锌的锌层厚度一般在65um以上。锌与铁的结合面上形成一层锌铁合金，增强了锌层的附着力。热镀锌耐蚀性好，性价比高，因此热镀锌锌桥框架在国内外得到广泛应用。

Zinc has good corrosion resistance under atmospheric conditions. Galvanizing is a method to protect cathode metal by sacrificing anode. Its corrosion resistance life depends on the thickness of zinc coating and corrosion rate. The thickness of zinc layer of hot galvanizing is generally above 65um. A layer of zinc iron alloy is formed on the joint surface of zinc and iron, which enhances the adhesion of zinc layer. Hot dip galvanized bridge frame is widely used at home and abroad because of its good corrosion resistance and high cost performance.

3、非金属电缆桥架，简称玻璃钢电缆桥架。

3. Non metal cable tray, referred to as glass fiber reinforced plastic cable tray.

这种新型电缆槽使用阻燃合成树脂作为粘合剂，玻璃纤维作为增强材料。它具有高耐腐蚀性、电绝缘性、重量轻、强度高、阻燃性好、色泽亮丽、使用可靠。

This new cable tray uses flame retardant synthetic resin as adhesive and glass fiber as reinforcement. It has high corrosion resistance, electrical insulation, light weight, high strength, good flame retardancy, bright color and reliable use.

4、静电喷涂。

4. Electrostatic spraying.

喷涂材料一般为聚氯乙烯粉末、聚酯粉末或防腐粉末。静电喷涂具有美观、耐化学腐蚀性好的特点。然而，与金属涂层相比，它的粘附强度低，抗侵蚀性和抗颗粒磨损性差。在使用过程中，很容易造成局部涂层脱落，从而使基体生锈，导致涂层大面积起泡。此外，该涂层抗紫外线性能差，通常不适合户外使用。

The spraying materials are generally PVC powder, polyester powder or anti-corrosion powder. Electrostatic spraying has the characteristics of beautiful appearance and good chemical corrosion resistance. However, compared with metal coating, its adhesion strength is low, and its corrosion resistance and particle wear resistance are poor. In the process of use, it is easy to cause the local coating to fall off, so as to rust the substrate, causing the coating to bubble in a large area. In addition, the coating has poor UV resistance and is generally not suitable for outdoor use.

5、涂防锈漆。

5. Apply anti rust paint.

虽然在山东电缆桥架上涂防锈漆的方法成本低，使用方便；但防腐能力差。使用寿命短，维护工作量大，很少使用。

Although the method of coating anti rust paint on Shandong cable tray is low in cost and convenient to use; But the corrosion resistance is poor. Short service life, heavy maintenance workload, rarely used.

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