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?

山東電纜橋架

Shandong cable tray

1、電鍍鋅。

1. Electro galvanized.

與熱鍍鋅相比，電鍍鋅工藝簡單，成本較低。對山東電纜橋架的結構沒有特殊要求。鈍化處理后，鍍鋅層的防護性能得到顯著提高。電鍍鋅層稍薄，不適合耐腐蝕壽命要求高的場合。

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、熱浸鍍鋅。

2. Hot dip galvanizing.

在大氣條件下，鋅具有良好的耐腐蝕性。鍍鋅是一種通過犧牲陽極來保護陰極金屬的方法。其耐腐蝕壽命取決于鍍鋅層的厚度和腐蝕速率。熱鍍鋅的鋅層厚度一般在65um以上。鋅與鐵的結合面上形成一層鋅鐵合金，增強了鋅層的附著力。熱鍍鋅耐蝕性好，性價比高，因此熱鍍鋅鋅橋框架在國內(nèi)外得到廣泛應用。

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、非金屬電纜橋架，簡稱玻璃鋼電纜橋架。

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

這種新型電纜槽使用阻燃合成樹脂作為粘合劑，玻璃纖維作為增強材料。它具有高耐腐蝕性、電絕緣性、重量輕、強度高、阻燃性好、色澤亮麗、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、靜電噴涂。

4. Electrostatic spraying.

噴涂材料一般為聚氯乙烯粉末、聚酯粉末或防腐粉末。靜電噴涂具有美觀、耐化學腐蝕性好的特點。然而，與金屬涂層相比，它的粘附強度低，抗侵蝕性和抗顆粒磨損性差。在使用過程中，很容易造成局部涂層脫落，從而使基體生銹，導致涂層大面積起泡。此外，該涂層抗紫外線性能差，通常不適合戶外使用。

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、涂防銹漆。

5. Apply anti rust paint.

雖然在山東電纜橋架上涂防銹漆的方法成本低，使用方便；但防腐能力差。使用壽命短，維護工作量大，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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