Professional Cable Tray Manufacturer

Fireproof bridge and spray-plastic bridge can be heard from the name has a different function, today we will make a comparison between these two kinds of bridge, their scope of application and their respective advantages to do a alloy cable tray display. 
Fireproof bridge: fireproof bridge is mainly composed of fireproof board composed of glass fiber reinforced material and inorganic adhesive composite with metal skeleton and other fireproof substrates. 
With fireproof coating on the outer layer, the fireproof bridge will not burn after the fire, so as to prevent the spread of the fire, has an extremely good effect of fire prevention and fire resistance, but also has fire resistance, oil resistance, corrosion resistance, non-toxic, no pollution, convenient overall installation, reasonable structure, long service life, and beautiful, the alloy cable tray is installed in the cable tray, the environment is clean and the cleaning is convenient. 
Fire retardant coating has the characteristics of thin coating, high fire resistance and strong adhesion. 
The scope of application of fireproof bridge: fireproof bridge is suitable for the laying of power cables below 10KV, as well as control cables, lighting wiring and other indoor and outdoor overhead cable ditches and tunnels. 
The role of fireproof bridge: fireproof bridge is to spray a layer of fireproof paint on the surface of ordinary bridge to play the role of fire and flame retardant! 
In fact, the bridge itself will not catch fire, the only thing that can catch fire is the cable, the fireproof and flame retardant effect of fireproof paint. 
Spray bridge: spray bridge is the use of corona discharge phenomenon to make the powder coating adsorbed on the cable tray. 
The process is as follows: the powder coating is fed into the gun by the powder supply system through compressed air gas, and the high voltage generated by the high voltage electrostatic generator is added at the front of the gun. Due to the corona discharge, a dense charge is produced near the gun, and when the powder is ejected from the muzzle, the charged coating particles are formed, which are absorbed to the workpiece with opposite polarity by electrostatic force, and the more the powder is sprayed, the more the charge accumulates. 
When it reaches a certain thickness, it does not continue to absorb because of electrostatic repulsion, so that the whole workpiece can get a certain thickness of powder coating, and then the powder is melted, flattened and solidified by heat, that is, a hard film is formed on the surface of the workpiece. 
The scope of application of spray plastic bridge: spray plastic bridge is mainly suitable for electrostatic plastic spraying treatment, spraying plastic powder on the cable tray. 
Advantages of spraying bridge: no thinning, no pollution to the environment and no toxicity to the human body; excellent appearance quality of the coating, strong adhesion and mechanical strength; short curing time in spraying construction; much higher corrosion and wear resistance of the coating; no primer; simple construction, low technical requirements for workers; cost is lower than spray painting process; electrostatic plastic spraying process must be used in some construction occasions. 
The common phenomenon of flow in the painting process will not occur in the process of electrostatic powder spraying. 
To make a comprehensive comparison, there are the following differences between fireproof bridge and spray-plastic bridge: 
1. The fireproof performance of fireproof bridge is much higher than that of plastic sprayed bridge. 
2. The surface treatment of fireproof bridge is made of fireproof plastic or fireproof paint. 
The plastic spray bridge is the simplest and most basic surface treatment. 
3. The cost of fireproof bridge is high.