Why do galvanized cable trays need to undergo galvanizing treatment?
Galvanized cable trays, also known as galvanized cable racks, require galvanizing to strengthen the outer surface due to prolonged exposure to the outdoors. After galvanizing, the service life of the entire cable tray is greatly extended, mainly due to the galvanizing process. Galvanized cable trays are divided into hot-dip coating and cold dip coating, each with its own advantages and disadvantages. Generally speaking, hot-dip coating is used outdoors because the hot-dip coating process can maximize the antioxidant performance, so it can cope with harsh conditions such as rainwater and high temperature when working outdoors. Cold plating is commonly used indoors. Cold plating can improve the surface glossiness, making the appearance more glossy and beautiful. What are the advantages of hot-dip galvanized cable tray suppliers? Its main production process is different. The hot-dip galvanized cable tray is transferred into a zinc pot solution and the electroplated galvanized cable tray is obtained through the reaction of electrodes. Galvanizing used for bridge steel structures usually has little anti rust effect, and rusting is mainly caused by insufficient and uneven galvanizing. Generally, it will rust within two to three years, and counterfeit products will rust in a humid environment for more than ten days.
Cold galvanizing tray process: Clean the surface of the steel and perform chemical treatment in the electroplating solution, then apply zinc oxide solution. One pole is connected to direct current, and the other pole is connected to the galvanized tank. After being electrified, zinc replaces the surface of steel in a molecular state. If a brightener is added, the passivation layer will reflect the clouds and mist into a glossy layer.
Bridge hot-dip galvanizing process: The process and method of immersing steel or castings in molten zinc to form a Zn Fe alloy or Zn Zn Fe alloy coating on their surface. The hot-dip galvanized layer is thick and has strong corrosion resistance. The hot-dip galvanized coating is a supercooled light source, but the coating is thin and has weak oxidation resistance. Besides hot and cold plating, electroplating is also very popular now. The increasing variety of galvanized cable trays means that their quality will gradually improve, and their market will be difficult to find in the future.
