What is the difference between hot plating and cold plating?
Hot dip galvanized square pipe: it is a square pipe made by welding after the steel plate or steel strip is crimped and formed. On the basis of this square pipe, the square pipe is placed in the hot-dip galvanized pool. After a series of chemical reactions, a kind of square pipe is formed. The production process of hot-dip galvanized square pipe is relatively simple, but the production efficiency is still high, and there are many varieties and specifications, but this kind of square pipe requires little equipment and funds, which is suitable for the production of small galvanized square pipe manufacturers, But in terms of strength, the strength of this kind of steel pipe is far lower than that of seamless square pipe.
Cold galvanized square tube: the principle of cold galvanizing is used on the square tube to make the square tube have the function of anti-corrosion. Unlike hot-dip galvanizing, the cold galvanized coating mainly carries out anti-corrosion through the electrochemical principle. Therefore, it is necessary to ensure the full contact between zinc powder and steel, resulting in electrode potential difference, so the surface treatment of steel is very important.
The difference between cold galvanizing and hot-dip galvanizing square tube: galvanized square tube includes hot-dip galvanizing square tube and cold galvanizing square tube. Hot-dip galvanizing square tube includes wet dry method, lead-zinc method and oxidation-reduction method; The surface of the zinc layer of cold galvanizing is very smooth and compact, with uniform structure, good mechanical function and corrosion resistance, and the zinc consumption is 60% ~ 75% lower than that of hot galvanizing.
The above is the detailed introduction of Jinan galvanized square pipe. I hope it will help you If you have any questions, please contact us We will provide you with professional service http://www.msmpoz.com