What do you know about hot dip galvanizing process?

Hot dip galvanizing is a kind of galvanizing technology, France first used hot galvanizing in industrial production, there has been more than 180 years of history so far, mainly developed from the older hot plating method. In recent years, with the rapid rise of iron and steel industry, hot galvanizing industry has also been rapid development.

The process of hot dip galvanizing is complicated, and each step is of vital importance.

Step 1: toppings - pickling, washing. We should check whether the coated product has labels and other wastes on the surface, and then use a certain concentration of hydrochloric acid to remove the oxides (in order to ensure the beauty of the product, this step must be carefully and carefully).

Step 2: solvent treatment and drying. Put the coated product into the solvent. When the coated product is not bubbling, take out and dry (the drying temperature is 80-180 degrees).

Step 3: hot dip galvanizing. The requirements of hot galvanizing technology are relatively high. In the process of hot galvanizing production, the more tons of products per unit of time, the lower the cost.

Step 4: blow out and blow in. Compressed air for external blowing and steam for internal blowing;

Step 5: passivate the packaging. If the product is not well ventilated and prone to corrosion, we will passivate it to avoid this situation. After that, the galvanized products are packaged and hot-dip galvanized products are finished.

The hot dip galvanizing process is complicated and complicated. If there are higher requirements on the surface of galvanized products or the desired effect is achieved while saving cost, we should be careful and careful in every step.