A large amount of steel is required in steel structure engineering design, but if the steel used during construction rusts heavily, it will greatly shorten its service life. Personal safety is also a challenge. Collapse of buildings is not uncommon and has been increasingly valued in recent years. Today, Fangtong Steel Structure will teach you some rust removal methods!

◆ 1 ◆ Acid pickling and rust removal

It involves immersing the steel components that need to be coated in an acid tank and using acid to remove oil and rust from the surface of the components. The use of acid pickling process is also efficient and rust removal is relatively thorough. However, after acid pickling, the components must be washed with hot water or clean water. If there is residual acid present, the corrosion of the components will be more severe.

◆ 2 ◆ Manual rust removal

It is manually cleaned of rust on steel components using simple tools such as scrapers, grinding wheels, sandpaper, wire brushes, etc. This method has low work efficiency, poor working conditions, and incomplete rust removal.

◆ 3 ◆ Sandblasting rust removal

It is a rust removal method that uses the pressure of compressed air to continuously impact the surface of steel components with quartz sand or iron sand, cleaning up impurities such as rust and oil stains on the surface of the steel, and exposing the natural color of the metal steel. This method is highly efficient, thoroughly removes rust, and is a relatively advanced rust removal process.

Rust removal methods and grading of steel structures