Iron objects are easy to rust, but if steel products such as H-beam are not well maintained or encounter some harsh environmental problems, they will also rust. So at this time we have to remove the rust from them. Here are some methods for removing rust from H-beam.
1. Small pneumatic or electric rust removal
This rust removal method is powered by electricity or compressed air, and is equipped with appropriate rust removal equipment to perform reciprocating movements to meet the rust removal requirements of different occasions. It can also roughen the coating. The rust removal efficiency is much higher than manual rust removal and can be used in many parts, especially in the ship repair process.
2. High pressure water abrasive rust removal
This rust removal method uses the impact of high-pressure water jets to destroy rust and coatings. Its characteristics are that there is no dust pollution and no damage to the steel plate, which greatly improves the rust removal efficiency and has good rust removal quality. However, there is a disadvantage that the steel plate after rust removal is easy to rust again, and it needs to be repaired later.
3. Shot blasting rust removal
Shot blasting rust removal uses a rotating impeller to throw abrasives onto the surface of H-shaped steel to achieve the effect of rust removal. This is a relatively advanced treatment method for rust removal of ship hull steel. This method not only has high production efficiency, but also low cost, high degree of automation, and can realize assembly line operation with less pollution.
4. Shot peening for rust removal
This rust removal method mainly uses particle spraying to achieve the effect of surface cleaning. It is widely used and can remove impurities on the metal surface more thoroughly. It has high rust removal efficiency, high mechanical degree and good rust removal quality.
Protective measures after rust removal
After completing the rust removal work on H-beam, subsequent protective measures are crucial. First of all, you can evenly apply anti-rust paint on the surface of the H-beam, which is a common, economical and practical protection method. High-quality anti-rust paint can form a dense protective film, effectively blocking oxygen, moisture, etc. from direct contact with H-beam, slowing down the rate of oxidation and rusting.
At the same time, for some places with conditions, special H-beam anti-rust devices can also be used. For example, on some H-beam production lines, the desalting mechanism, drying mechanism and wax coating mechanism are set up in sequence to remove salt and moisture from the surface of the H-beam, and a thin layer of wax film is coated on the dry and clean surface of the H-beam to effectively isolate moisture and prevent rust for a long time.
In addition, for some small H-beam components or H-beam used in special environments, anti-rust film can be used for wrapping and protection, which can play a certain protective role. Good protective measures can greatly extend the service life of H-beam and reduce the trouble and loss caused by rusting again.
Read more: H-beam Heat Treatment Process
1. Small pneumatic or electric rust removal
This rust removal method is powered by electricity or compressed air, and is equipped with appropriate rust removal equipment to perform reciprocating movements to meet the rust removal requirements of different occasions. It can also roughen the coating. The rust removal efficiency is much higher than manual rust removal and can be used in many parts, especially in the ship repair process.
2. High pressure water abrasive rust removal
This rust removal method uses the impact of high-pressure water jets to destroy rust and coatings. Its characteristics are that there is no dust pollution and no damage to the steel plate, which greatly improves the rust removal efficiency and has good rust removal quality. However, there is a disadvantage that the steel plate after rust removal is easy to rust again, and it needs to be repaired later.
3. Shot blasting rust removal
Shot blasting rust removal uses a rotating impeller to throw abrasives onto the surface of H-shaped steel to achieve the effect of rust removal. This is a relatively advanced treatment method for rust removal of ship hull steel. This method not only has high production efficiency, but also low cost, high degree of automation, and can realize assembly line operation with less pollution.
4. Shot peening for rust removal
This rust removal method mainly uses particle spraying to achieve the effect of surface cleaning. It is widely used and can remove impurities on the metal surface more thoroughly. It has high rust removal efficiency, high mechanical degree and good rust removal quality.
Protective measures after rust removal
After completing the rust removal work on H-beam, subsequent protective measures are crucial. First of all, you can evenly apply anti-rust paint on the surface of the H-beam, which is a common, economical and practical protection method. High-quality anti-rust paint can form a dense protective film, effectively blocking oxygen, moisture, etc. from direct contact with H-beam, slowing down the rate of oxidation and rusting.
At the same time, for some places with conditions, special H-beam anti-rust devices can also be used. For example, on some H-beam production lines, the desalting mechanism, drying mechanism and wax coating mechanism are set up in sequence to remove salt and moisture from the surface of the H-beam, and a thin layer of wax film is coated on the dry and clean surface of the H-beam to effectively isolate moisture and prevent rust for a long time.
In addition, for some small H-beam components or H-beam used in special environments, anti-rust film can be used for wrapping and protection, which can play a certain protective role. Good protective measures can greatly extend the service life of H-beam and reduce the trouble and loss caused by rusting again.
Read more: H-beam Heat Treatment Process
