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Hot Galvanizing Production Line For Continuous Strip Steel

Hot galvanizing production line for continuous strip steel Galvanized have been corrosion protection of steel materials is an effective method, of course, it is based on the adhesion strength of the coating and the steel substrate to have good, in order to meet the needs on the basis of further...

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  • Hot galvanizing production line for continuous strip steel


  Galvanized have been corrosion protection of steel materials is an effective method, of course, it is based on the adhesion strength of the coating and the steel substrate to have good, in order to meet the needs on the basis of further processing forming, in all kinds of galvanized approach, there is hot dip galvanized, electric galvanized, hot spraying, the vacuum evaporation plating, mechanical barrel plating, etc.The amount of zinc used for hot galvanizing accounts for more than 90% of the total zinc consumption. Why is this happening?The trend is mainly due to the thickness, corrosion resistance and low cost of hot-dip galvanized zinc coating. The thickness and surface quality of the coating can be controlled. In recent decades, electric galvanized method also obtained fast development, but in plating, zinc steel plate production failure to replace the production technology of hot dip galvanized steel sheet, one of the main reasons, hot galvanizing technology is at a relatively low cost to get thicker coating.

   As mentioned earlier, galvanized have been corrosion protection of steel materials is an effective method, of course, it is based on the adhesion strength of the coating and the steel substrate to have good, in order to meet the needs on the basis of further processing forming, in all kinds of galvanized approach, there is hot dip galvanized, electric galvanized, hot spraying, the vacuum evaporation plating, mechanical barrel plating, etc.The amount of zinc used for hot galvanizing accounts for more than 90% of the total zinc consumption. Why is this happening?The trend is mainly due to the thickness, corrosion resistance and low cost of hot-dip galvanized zinc coating. The thickness and surface quality of the coating can be controlled. In recent decades, electric galvanized method also obtained fast development, but in plating, zinc steel plate production failure to replace the production technology of hot dip galvanized steel sheet, one of the main reasons, hot galvanizing technology is at a relatively low cost to get thicker coating.The so-called off-line annealing refers to the annealing of raw materials (hot and cold rolled sheet) before entering the hot galvanizing operation. The annealing in line refers to the annealing of steel plate first, followed by hot galvanizing in hot galvanizing production line. Behind the sheet steel hot galvanizing unit flux method, USES the hot pack rolling sheet, enter the galvanized annealed workshop, by acid pickling to remove surface scale, solvent coating after the baked into the zinc pot for galvanizing. This· these methods have been eliminated due to low yield, high cost, poor quality, serious environmental pollution and low economic benefits. Replaced by the high quality, high yield, low consumption, economic benefit is remarkable in the modern large-scale continuous hot galvanizing, production line, it has low production cost, methods and feasible, with anode protection (i.e. when plating complete, isolation effect, if the coating is not too much damage occurs, due to electrochemical action, corrosion coating themselves, so as to protect the steel from corrosion), etc.

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