Everything You Need To Know About Electrogalvanized Steel

Galvanizing is basically the process of coating any metal, usually steel or iron, with layers of zinc, this gives the metal complete protection against corrosion. Corrosion actually costs the United States with hundreds of billions damages in dollars annually, such affects of corrosion can result in traffic jams, accidents as well as decreased worker productivity. Thus, the process of galvanization is preferred as it increases the useful life of steel and also saves money on different infrastructure maintenance and replacement.

History

This process has been benefiting our world of business from past 150 years; P. J. Malouin who was a French chemist was actually the first person to actually discover the practical applications of such galvanized steel in the year 1742.  The method of coating iron metal with zinc was then patented in the year 1836 by famous French chemist Stanilaus Tranquille Modeste Sorel.

Methods

In order to get galvanized steel, the steel actually has to go through a specific process. There are different methods of galvanizing steel; one method is hot-dip galvanization which involves dipping of steel into a container made of molten zinc.  However, the most prominent one is electrogalvanized steel, which is made by dipping steel into an electrolyte solution which actually deposits pure coating of zinc onto the dipped steel. This method of galvanizing steel is mostly preferred as there are numerous benefits and advantages of such steel. One such advantage of this process is that the zinc coating can be actually controlled in an easier way in compared to hot-dip galvanization method.

Process of Electrogalvanization

This process uses electricity in order to bond the zinc well to steel. Workers working in electro galvanized steel plant run DC electricity through a solution of zinc-salt solution. Then the electricity runs through an anode, and later to the steel, which in the solution acts as a cathode. Here the anode can chosen either a block of zinc, which serves also as the zinc component for the solution of the zinc-salt as well.  A block of lead can also be used, where workers must constantly continue to add zinc to the specific solution. In both cases, the electrical force that runs through its anode to the steel actually causes zinc to completely dissolve and bond with the steel. During the process of electro galvanization, dissolved particles of the zinc runs along the line of electric current. This helps in bringing them near the steel and then to deposits them on it. Whereas, the constant DC electricity supply causes zinc particles to actually bond tightly with the steel, thus, creating a very thin layer of it. 

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Created on Dec 31st 1969 18:00. Viewed 0 times.

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