The anti-corrosion principle of electric galvanized wire: The anti-corrosion principle of electric galvanized wire is mainly through the plating of a zinc layer on the metal surface, and the self-corrosion performance of the zinc layer is used to hinder the further corrosion of the metal. Electrogalvanizing wire is usually manufactured by hot-dip galvanizing or electrogalvanizing. Hot dip galvanizing involves dipping a wire into a molten zinc solution to form a zinc layer. Electrogalvanizing is the metal wire as a cathode, into the electrolyte containing zinc ions, through the action of current, so that zinc ions reduced to metal zinc, deposited on the surface of the wire, forming a uniform layer of zinc. These zinc layers cover the surface of the wire and play a role in protecting it from corrosion.
Evaluation of corrosion resistance of galvanized wire: The corrosion resistance of galvanized wire can usually be evaluated by the following indicators.
1. Immersion experiment: Put the electric galvanized wire into a certain environment, such as salt water or acidic solution, observe for a period of time, measure the degree of corrosion of the electric galvanized wire. Under normal circumstances, the longer the immersion experiment time of electrogalvanized wire, the higher the corrosion degree, indicating that the corrosion resistance is poor.
2. Salt spray test: Put the electric galvanized wire into the salt spray environment, and evaluate its salt spray corrosion resistance by observing the corrosion of the electric galvanized wire after a certain time. Generally speaking, if the resistance to salt spray corrosion of electrogalvanized wire is good, the corrosion degree is low in the salt spray experiment.
3. Hot and wet experiment: Put the electric galvanized wire into a high temperature and high humidity environment, observe for a period of time, and measure the degree of corrosion of the electric galvanized wire. The heat and humidity test is mainly used to evaluate the corrosion resistance of electrogalvanized wire in high temperature and high humidity environment.
4. Accelerated corrosion test: by simulating specific environmental conditions, such as high temperature, high humidity and acid conditions, accelerate the corrosion process of electric galvanized wire, and evaluate its corrosion resistance by observing the degree of corrosion of electric galvanized wire after a certain time.
Post time: 23-08-24