Cold galvanized cable tray is to use electrolytic equipment to degrease and pickle the cable tray, and then put it into a solution with zinc salt composition, and connect the negative pole of the electrolytic equipment. A zinc plate is placed on the opposite side of the cable tray, and the positive pole of the electrolytic equipment is connected to the power supply. A layer of zinc will be deposited on the cable tray by using the directional movement of the current from the positive pole to the negative pole. Cold galvanized cable tray is processed first and then galvanized, which has the effect of anti-corrosion.
Like heavy anti-corrosion coating, the production and coating of cold galvanized cable tray also involves environmental protection and occupational health and safety of construction personnel and the public, so environmental protection is also the main development direction of cold galvanized cable tray. Cold galvanized cable tray has excellent environmental protection performance, which is mainly reflected in the following four aspects:
(1) The ingredients do not contain Ph, cr, Hg and other heavy metals;
(2) It belongs to thick film material with good thixotropy. After full mixing, with little or no thinner, it can be coated. As the solid content of cold galvanizing is as high as 77%, one airless spraying can obtain a higher film thickness, reduce the volatilization of organic solvents, and reduce drying energy consumption, which are conducive to environmental protection.
(3) The test shows that most of the solvents and diluents for cold galvanizing do not contain toxic organic solvents such as toluene, ketones and halohydrocarbons.
(4) Compared with hot-dip galvanizing, the electro galvanizing process is simpler and cheaper. Cold galvanized cable tray is a good material to replace hot dip galvanizing and arc (hot) zinc spraying. It plays an obvious role in reducing three wastes, reducing energy consumption and improving social benefits of environmental protection.
Hot dip galvanizing is an excellent coating method for protecting steel substrate. It is in the liquid state of zinc, after quite complex physical and chemical actions, not only a thick pure zinc layer is plated on steel, but also a zinc iron alloy layer is formed. This plating method not only has the corrosion resistance characteristics of galvanization, but also has a zinc iron alloy layer. It also has strong corrosion resistance that can not be compared with that of electrogalvanizing. Therefore, this plating method is applicable to various strong acid, alkali fog and other corrosive environments.
The above is a detailed introduction to Shandong cable tray, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://www.sdhangfeng.com