1. Hot-dip galvanizing, also known as hot-dip galvanizing, is to melt the zinc ingot at high temperature, put some auxiliary materials, and then immerse the metal structure in the galvanizing tank to make a layer of zinc adhere to the metal component . The advantage of hot dip galvanizing is that it has strong anti-corrosion ability, and the adhesion and hardness of the galvanized layer are better.
"Cold plating" means "electroplating", that is, the zinc salt solution is electrolyzed to coat the plated parts. Generally, no heating is required, and the amount of zinc is very small. It is easy to fall off in a humid environment. Cold galvanizing, also called electro-galvanizing, is to use electrolysis equipment to degrease and pickle the workpiece into a solution containing zinc salt, and connect it to the negative electrode of the electrolysis equipment; place a zinc plate on the opposite side of the workpiece to connect to the electrolysis equipment The positive electrode, connected to the power source, uses current to move from the positive electrode to the negative electrode, and a layer of zinc is deposited on the workpiece.