The process of dipping the fabricated steel into the kettle or a vat which contains liquefied zinc is referred to as hot dip galvanizing. This simple process provides an advantage over that of other methods of corrosion protection. The iron of the steel reacts with the zinc when it is poured into the kettle and forms an alloy coating, which is tightly bonded and that helps the steel to prevent any corrosion. This process is found everywhere in the world, this is the patent process that can be found in almost every major application and industry where steel and iron are used. This process has revolutionized iron and steel industries and is used worldwide.
A brief about hot dip galvanizing process
The process involves immersing steel or iron in a bath of molten zinc in order to produce a corrosion resistant, coating of iron and zinc alloy and zinc metal. When the steel remains immersed in the zinc, a metallurgical reaction takes place between iron that is present in the steel and the molten zinc. As this reaction is a diffusion process the coating is formed perpendicular to all surfaces so a uniform thickness is formed throughout the part. From 1794 this process is in use which helps to provide maintenance free, long lasting and corrosion protection that too at a reasonable cost for decades. This simple process provides an advantage over that of other methods of corrosion protection.
Hot Dip Galvanizing – An overview – read more
Steps in hot dip galvanizing
This process involves three main steps which include surface preparation, galvanizing, and post treatment. Surface preparation aims to remove all the oxides and other contaminating residues. This process is very important because zinc fails to react with unclean steel. This process is done by immersing the steel in an acid degrees bath in order to remove grease, dirt, oil, etc. Next, a dilute solution is used to mill scale and oxides. Then a flux is used in order to clean the steel of all oxidation, which can develop due to the pickling of the steel. The flux creates a protective layer to prevent any kind of oxidation. After the steel is completely cleaned, it gets ready for zinc bath immersion.
They offer the best surface preparation, which is the most important factors in the application of the zinc coating on the iron component surface area, without which zinc coating can’t be processed properly.The galvanized kettle contains pure zinc and is heated to a temperature that ranges from 820 to 860 F. After the completion of diffusion reaction of iron and zinc, the steel from the galvanizing kettle is removed and is given some post treatment which enhances the galvanized coating.
Services provided by Tanya Galvanizers
Tanya galvanizers are one of the most trusted, professionally managed, dynamic engineering company that offers hot dip galvanizing, testing and supply of cable trays, earthling material, raceways etc. This hot dip galvanizing consultancy provides offers barrier protection and catholic protection. Their products are in great demand and are used by cooling tower manufacturers, power plants, fertilizer industry, railways, petrochemical project, refinery project and elsewhere. They are the experienced hot dip galvanizing consultant based in Vadodara, Gujarat. Contact us at info@galvanizers.co.in or call: +91 8000842648