How do you test hot dip galvanizing ?

Hot-dip galvanizing is a widely recognized process for protecting metal surfaces from corrosion and damage. EN ISO 1461:2012 is an international standard that outlines the requirements for hot-dip galvanizing of steel and iron products.

The benefits of hot-dip galvanizing are numerous. Firstly, the process provides superior corrosion protection by creating a barrier between the metal substrate and the environment. Secondly, hot-dip galvanizing creates a durable and long-lasting coating that is tightly adhered to the surface.

The hot-dip galvanizing process involves several steps. First, the steel or iron articles are thoroughly cleaned to remove any contaminants, such as rust, grease, and dirt. This is important to ensure proper adhesion of the zinc coating. Once clean, the articles are immersed into a bath of molten zinc at a temperature of approximately 450 degrees Celsius. The high temperature ensures that the zinc bonds with the steel or iron surface, creating a metallurgical bond.

After the coating has been applied, it is important to ensure that the coating thickness is to the required specifications. This can be achieved by measuring the thickness of the coating using a micrometer or other precision measurement tool.

EN ISO 1461:2012 is an international standard that outlines the requirements for hot-dip galvanizing of steel and iron products. It defines the coating process, coating thickness, and other quality parameters for achieving corrosion protection on metal surfaces. By following this standard, manufacturers can ensure that their hot-dip galvanized products provide the required level of corrosion protection and durability.