Commonly used methods for removing rust can be divided into physical methods and chemical methods. The physical method mainly uses sanding to remove rust, such as sandpaper, grinding wheel, wire brush, steel ball, etc. The chemical method mainly uses the chemical reaction between acid and rust to achieve the purpose of rust removal.

In fact, it is only necessary to isolate steel products from water and oxygen to prevent steel corrosion. Therefore, the easiest way to prevent iron rust is to keep the surface of the steel product clean and dry. To prevent rusting of steel, a protective layer can also be formed on the surface, such as oiling, painting, firing enamel, spray molding, and the like. In daily life, people often paint paint on cars, buckets, etc., and the machine needs to apply mineral oil. In addition, a layer of metal that is not easily rusted, such as zinc, tin, chromium, nickel, etc., may be plated on the surface of the steel by electroplating or hot plating. These metal surfaces are capable of forming a dense oxide film to prevent iron products from rusting by contact with substances such as water and air. In addition, the steel can be alloyed to change the internal structure of the steel. For example, stainless steel is added to ordinary metals such as chromium and nickel to make stainless steel, which effectively increases the rust resistance of steel products.