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Characteristic points of cable tray


There are many ways to dealCable TrayThe appearance. The first thing to do is to make the use of cable tray more durable, while the role of fire.

There are many methods of external protection, including metal, organic and inorganic coating protection. Deep metal layer can be used electroplating, galvanized bridge powder plating, spray bridge, fire bridge, the difference between them is hot, solution plating, metal coating and so on. In addition to the general zinc metal, there are various combinations of zinc alloys or aluminum. Another example is an organic coating. Paint alone has a variety of resins to choose from, and so on. Therefore, the appearance protection skills cannot be regarded as constant. For projects with harsh corrosive environment and high durability requirements, it is advisable to explore the required external protection treatment methods. Therefore, the use of hot-dip galvanized, electro-galvanized, spray, fire retardant coatings, such as four kinds of galvanized bridge to meet the needs of the project. Cable tray because of its own characteristics, variety, wide application, structural design rigorous, affordable, loved by engineers. But the classification of a lot of bridge, let a person very headache. From a formal point of view, there are trays, steps, combinations, and grooves. According to the different installation forms, galvanized bridge choose different bridge. The functional difference between surface-treated bridges, plastic-sprayed bridges and fireproof bridges is very important, and they have their own advantages and uses. After pickling, the surface of the cold galvanized cable trough is smooth and uniform. The hot-dip galvanized cable tray can prevent corrosion and can be used outdoors. The thermal spraying zinc layer has strong hardness and will not deform due to external force. Different types of bridges should be suitable for different environments.

Some key points of cable tray selection: in the engineering design related documents, sometimes the engineer will not point out the structural characteristics of the specific bridge. Of course, the price of cable trays of different types and materials varies greatly. If the structure type is confused, it will bring some problems such as heat dissipation and mechanical protection to the job site. Therefore, in the design, the designer is required to reasonably select the structural characteristics of the cable tray according to the characteristics of the engineering environment and technical requirements, and clearly express it in the model label and material list of the scheme. When selecting the bending or leading device of the cable tray, it should not be less than the minimum allowable bending radius of the cable in the cable tray. At the same time, in some places with high fire protection requirements, it is not appropriate to use aluminum cable trays, otherwise it will bring great danger. Under the same specification, the flame retardant cable tray is more expensive than the steel cable tray, but the service life is longer and the weight is slightly heavier. Wrought aluminum alloy can withstand pressure processing, and its mechanical properties are higher than that of cast aluminum alloy. It can be processed into aluminum alloy materials of various shapes and specifications. Mainly used in the manufacture of aviation equipment, daily necessities, building doors and windows. The cast aluminum alloy is used in the as-cast state. In fact, according to the chemical composition can be divided into aluminum silicon alloy, aluminum copper alloy, aluminum zinc alloy, aluminum rare earth alloy.

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