the definition of cold galvanized and hot-dip galvanizing

A, hot-dip galvanizing, also called hot dip galvanizing and hot dip galvanizing, is an effective metal anticorrosion method. It is mainly used in metal structure facilities of various industries. It is to immerse steel parts after rust removal in the molten zinc solution about 500 degrees C, so that the steel parts are attached to the zinc layer on the surface, thus the purpose of anticorrosion is.
B, cold galvanizing, is galvanized, the amount of zinc is less, only 10 – 50g/m2, is the use of electrolysis to make metal or other materials on the surface of a layer of metal film attached to the process. The process of forming a homogeneous, compact and well bonded metal layer can prevent corrosion and improve the wear resistance, conductivity, reflective and aesthetic effect.

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