Hot dip galvanizing process of flange

The process of hot galvanizing of flange is acid pickling assisted plating drying hot dip galvanizing separation cooling passivation.

Customers who purchase flange will be galvanized according to the requirements of the use of the flange. Hot dip galvanizing is an effective metal corrosion protection method, which is mainly used in metal structure facilities of various industries. It is to immerse the derusted steel parts into the molten zinc melted at about 500 ℃ to make the surface of the steel members adhere to the zinc layer, and then have the intention of anti-corrosion.

After the iron parts are cleaned and treated with solvent, they are dried and immersed in zinc liquid, the iron reacts with molten zinc to form an alloyed zinc layer. The process is as follows: degreasing – washing – pickling – plating – drying – hot dip galvanizing – separation – cooling and passivation.

Hot dip galvanized flanges

Hot dip galvanized flanges

The advantages of the flange after hot-dip galvanizing: the cost of hot-dip galvanized antirust is lower than that of other paint coatings; durable: in suburban environment, the standard thickness of hot-dip galvanized antirust can be maintained for more than 50 years without repair; in urban areas or offshore areas, the standard hot-dip galvanized antirust coating can last for 20 years without repair.

Good reliability: the galvanizing layer and the steel are metallurgically combined and become a part of the steel surface, so the durability of the coating is relatively reliable; the zinc coating forms a special metallurgical structure, which can withstand mechanical damage during transportation and use; comprehensive maintenance: every part of the plated part can be plated with zinc, even in the depression, sharp corner and hidden place Maintenance; time and effort saving: galvanizing process is faster than other coating construction methods, and can prevent the time needed to brush on the construction site after installation.

Haihao Group manufacture flange products more than 30 years,the products sells well all over the world for the high quality.If you have any question,please contact us!


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