1. Mechanism of surface treatment to enhance corrosion resistance
Isolate corrosive media: A protective film is formed on the surface of the anchor bolt through surface treatment, which can isolate corrosive media such as air and moisture from direct contact with the anchor bolt substrate, thereby slowing down the corrosion rate.
Sacrificial anode protection: In the electroplating process, the plated metal is usually more active than the anchor bolt substrate and can act as a sacrificial anode, which is corroded first during the corrosion process, thereby protecting the anchor bolt substrate from corrosion.
Increase surface hardness: Some surface treatment processes can also increase the hardness of the anchor bolt surface, improve its wear and scratch resistance, and further extend the service life of the anchor bolt.
2. Precautions in practical application
Choose a suitable surface treatment process: The appropriate surface treatment process should be selected according to factors such as the use environment of the anchor bolt, the type and concentration of the corrosive medium, etc.
Control the quality of surface treatment: The parameters and processes of the surface treatment process should be strictly controlled to ensure that the protective film formed is uniform, dense and defect-free.
Regular inspection and maintenance: Even after surface treatment, the anchor bolt may still be affected by corrosion during use. Therefore, the corrosion of the anchor bolt should be checked regularly and necessary maintenance measures should be taken.