Methods of rust removal of H-beam anti-corrosion
Physical descaling method: Physical descaling method refers to the removal of the rust layer or corrosion on the surface of H-beam steel through the use of mechanical or physical methods. This method has the advantages of simple operation, cost saving, etc. It is suitable for the anti-corrosion treatment of H-beam whose surface corrosion is not serious.
1. Sanding
Sanding is the use of grinding wheels or abrasive belts on the surface of H-beam to remove the surface of the rust layer and dirt. This method is easy to operate and has good effect, but it needs to use specialized equipment, so it is generally applicable to large-scale projects.
2. Descaling by steel brush
Steel brush descaling is to use wire brush to remove the surface rust layer, applicable to small area and the surface rust layer is not deep. This method is easy to operate, low cost, but need to pay attention to protect the safety of workers.
3. Pneumatic descaling
Pneumatic descaling is by using a spray gun to spray compressed air onto the surface of H-beam to remove the surface rust and dirt. This method has the advantages of fast speed and good effect, and it is suitable for the treatment of H-beam with more serious surface corrosion.
Chemical descaling method: chemical descaling method refers to the use of chemical methods to carry out anti-corrosion treatment. This method is suitable for the more serious surface corrosion of H-beam steel treatment, can remove the surface of the rust layer and dirt, and play a role in inhibiting corrosion again.
1. Acid washing
Acid washing is to apply acidic compounds to the surface of H-beam to remove the surface rust layer and dirt. Acids such as glutamic acid, acetic acid and hydrofluoric acid are widely used in the pickling process. This method is effective, but the operation requires caution and regulations and safety measures must be observed.
2. Spraying
Spraying is to spray chemical agents on the surface of H-beam to remove the rust layer and dirt on the surface. This method can form a protective film on the surface to inhibit recorrosion. The spraying method is suitable for anti-corrosion treatment in confined space.
Electrochemical descaling method: Electrochemical descaling method is the use of anode and cathode electrochemical effect, the surface metal ionization, so that the surface of the rust layer and dirt removal. This method is suitable for the treatment of H-beam steel with more serious surface corrosion, and has better anti-corrosion effect.
Electrolytic descaling is to use H-beam as anode to remove the surface rust layer through electrolysis, which is applicable to the case of more serious surface corrosion. Electrolytic descaling requires more professional equipment and operation technology, and safety measures should be paid attention to during operation.
Galvanization: Galvanization is to coat the surface of H-beam with a layer of zinc to improve its corrosion resistance. This method is simple and effective, widely used in construction, machinery and other fields. Commonly used galvanizing methods mainly include hot-dip galvanizing and electro-galvanizing.
In short, for different situations, the use of different anti-corrosion and descaling methods can effectively improve the corrosion resistance of H-beam and extend its service life. In the process of anticorrosion and descaling, relevant regulations and safety measures must be strictly observed to ensure the safety and effectiveness of the operation.
If you have more needs and questions about steel, please contact us!
GNEE Group receives visiting customers
GNEE Group office environment