Steel Tower

What are the common methods for anti-rust treatment of Steel Tower and what are their principles?

Common methods for anti-rust treatment of Steel Tower mainly include the following:
Coating protection method:
Principle: By coating one or more layers of anti-rust paint on the surface of Steel Tower, a protective film is formed to isolate the steel tower from corrosive factors in the external environment. This protective film can effectively prevent moisture, oxygen and other corrosive media from contacting the surface of the steel tower, thereby slowing down or preventing the occurrence of rust.
Common coatings: including polyurethane, epoxy, acrylic and other anti-corrosion coatings, these coatings usually have excellent weather resistance, chemical resistance and adhesion.
Metal covering method:
Principle: Using the principle of electrochemistry, the surface of Steel Tower is covered with a layer of metal (such as zinc) that is more active than steel to form a galvanic cell effect. In this way, when the external environment causes corrosion, this layer of active metal will be corroded first, thus protecting the steel tower itself from corrosion.
Common methods: hot dip galvanizing, electroplating, etc. Hot-dip galvanizing is to immerse the steel tower in molten zinc liquid to attach a layer of zinc to the surface of the steel tower; electroplating is to deposit a layer of metal on the surface of the steel tower through electrolysis.
Phosphating treatment:
Principle: The Steel Tower is immersed in a phosphate solution, and a dense phosphate film is formed on the surface of the steel tower through a chemical reaction. This film has good corrosion resistance and adhesion, and can effectively protect the steel tower from corrosion.
Electrochemical protection:
Principle: The potential of the Steel Tower is changed by applying an external current, so that it is in a state that is not easily corroded. This includes both anodic and cathodic protection methods. Anodic protection applies an anodic current to the steel tower to form a passivation film on its surface; cathodic protection applies a cathodic current to the steel tower to make its surface become a cathode, thereby preventing corrosion.
Each anti-rust treatment method has its own unique principles and application scenarios, and the appropriate method needs to be selected based on the specific use environment and requirements of Steel Tower. At the same time, regular inspection and maintenance are also key to ensuring long-lasting anti-rust effects.