Galvanized sheet has a good anticorrosive effect, so it is widely used in industry. The galvanized sheet has a smooth galvanized surface and can be used for a long time in order to prevent rust. As a relatively primary semi-finished product for the production of metal products, galvanizing is widely known, but a few people know that galvanizing is also divided into hot-dip galvanizing and cold-dip galvanizing. The following explains the difference between these two types of galvanizing from production to completion The process flow, layer by layer, shows you the difference between the processing and production links of the two, so that everyone can better understand the difference between the two galvanized sheets.
Hot-dip galvanizing is also called hot-dip galvanizing. It is to melt the zinc ingot at high temperature and put some auxiliary materials, and then immerse the metal structural parts in the galvanizing tank so that a layer of zinc can be attached. The advantage of hot dip galvanizing is that it has strong anti-corrosion ability. The adhesion and hardness of the galvanized layer of the building reinforcement project are good. Hot dip galvanizing is a chemical treatment that belongs to the electrochemical reaction. Hot dip galvanizing is mostly used in construction.
Analysis of hot and cold processing of galvanized sheet
"Cold plating" means "electroplating", that is, the zinc salt solution is electroplated on the plated parts. Generally speaking, the amount of zinc used in construction engineering reinforcement without heating is very small, and it is easy to fall off in a humid environment. Cold galvanizing is a physical treatment, just brush a layer of zinc on the surface, so the zinc layer is easy to fall off.
Cold galvanizing means that electrogalvanizing is only 10-50g / m2, and its own corrosion resistance is much worse than hot dip galvanizing. The price of electro-galvanized building reinforcement is relatively cheap. Hot-dip galvanizing is that the steel body is galvanized on the surface under the condition of hot dipping. It has strong adhesion and is not easy to fall off. Although the hot-dip galvanized pipe also exhibits rust, it can meet technical and hygienic requirements in a long period.
