How can the adhesion of the spray coating of the new bridge be increased? In fact, many people want to know about this problem. It is more for the purpose of using this product for construction in the future. The Jinan cable bridge manufacturer will explain it for you.
The cable tray has the advantages of simple construction, anti-corrosion and long service life. The anti-corrosion effect directly determines the later use of the cable tray. Most of the rework is caused by corrosion due to the inability to withstand the change of the climate environment. Therefore, it is particularly important to spray the anti-corrosion coating of the cable tray in the early stage.
The adhesion of the spray coating of the cable tray can be measured by applying considerable pressure with a solid blade tip to remove the scribed lines of the spray coating. That is, draw 4 lines of character every 3mm on the surface of the test workpiece with a knife tip, and then draw 4 parallel lines every 3mm in its vertical direction to form 9 squares, and then brush back and forth with an ordinary toothbrush at a pressure of about 10N for 5 times, with a falling area of 3 squares; Level 2 of 2 cells; Level 1 of 1 grid.
In addition, if the falling area of one grid is less than one quarter of one grid, it is not considered as falling. In fact, the anti-corrosion coating of cable tray is not common. Most of them are directly sprayed by the manufacturer. However, after knowing the method, we can also use this method to check when purchasing. It is beneficial but not harmful.
However, the price, quality and service of cable trays with different raw materials and manufacturers of different brands in the market are very different, and the price is also very different due to the different coating processes. According to the price of hot-dip galvanized cable tray, it can be seen that the tray price of different materials is different. Therefore, it is important to select the cable tray supplier, which is an important reminder for selecting the cable tray manufacturer and brand!
Take the price of the aluminum alloy cable tray in the cable tray as an example. There is a difference between the price of the steel cable tray and the price of the wholesale or retail cable tray. In order to obtain better quality assurance, the price advantage will be more outstanding. Therefore, how to confirm the quality of raw materials is very important. For more information, please visit our website http://www.sddlqj.cn Consult and understand!