HOT-DIP GALVANIZING MACHINERY

The base material of hot-dip galvanizing is zinc. Zinc, naturally found in the air, water and soil. Galvanizing may protect the material covered by normal conditions for up to 40 years. Hot-Dip Galvanizing is long-lasting, durable, economical and recyclable.
Hot-Dip Galvanizing Machines are designed to make the best of galvanizing process. The settlement plan will be determined according to the area where the facility will be built, the project will be done and the facility will be established.

HOT-DIP GALVANIZING PROCESS

Hot-dip galvanizing is the process of coating iron and steel with zinc, which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 840 °F (449 °C). The process of hot-dip galvanizing line results in a metallurgical bond between zinc and steel with a series of distinct iron-zinc alloys. The resulting coated steel can be used in much the same way as uncoated. The steps of the hot-dip galvanizing process are briefly explained below.

OIL REMOVAL: First the steel is immersed in an acid degreasing bath or caustic solution to remove organic contaminants such as dirt, oil, and grease from the surface of the steel. After degreasing the steel is rinsed with water.
SURFACE CLEANING WITH ACID TREATMENT (PICKLING): Next the steel is pickled in a dilute solution of either hydrochloric or sulfuric acid.
RINSING: For a good reaction with zinc the metal must be dry.

FLUX: A flux, often zinc ammonium chloride is applied to the steel to inhibit oxidation of the cleaned surface upon exposure to air. The flux is allowed to dry on the steel and aids in the process of the liquid zinc wetting and adhering to the steel.
DRYING: For a good reaction with Zinc the metal must be dry.
HOT-DIP GALVANIZING: Hot-Dip Galvanization is a type of galvanization. It is the process of coating iron and steel with zinc, which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 449 °C.

COOLING: Galvanized products are cooled in air or by immersing into a water bath.
PASSIVATION: It is about the formation of a protective surface on the zinc to improve corrosion protection.
LEVELING: After the galvanizing process of the materials, the burrs and deposits formed on the surface are cleaned and packed according to their sizes.