The main material of Q345B seamless steel pipe is the Q345B type, which is relatively strong and durable. The common use of Q345B seamless steel pipe is also more, and the wide performance is also relatively good. For Q345B seamless steel pipe, we found that there are more rust, and we must master certain methods and methods for rust removal, and constantly improve the awareness of rust removal, so that the performance of Q345B seamless steel pipe can be more prominently displayed. The following is a brief introduction to the methods of rust prevention and rust removal for your reference:
Before painting Q345B seamless steel pipe anti-corrosion paint, it is necessary to use tools such as wire brushes to remove oxide scale, rust and other pollutants on the surface of the substrate. If manual rust removal is used, the rust removal level is Sa2 level. The rust level is Sa3. For the iron oxide scale with relatively strong adhesion, the two rust removal methods mentioned above are not ideal. The following spraying (throwing) rust removal methods can be used.
The rust removal principle of spray (throwing) rust removal is to drive the spray (throwing) blade to rotate at a high speed through a high-power motor, so that the abrasives such as steel sand, steel shot, iron wire segment, and minerals can affect the surface of the Q345B seamless steel pipe under the action of centrifugal force. Spraying (throwing) treatment can not only completely remove pollutants, but also achieve the uniform roughness required for construction. Therefore, it is called an ideal rust removal method for pipeline corrosion protection. Generally speaking, shot blasting (sand) derusting is mainly used for inner surface treatment of pipes, and shot blasting (sand) derusting is mainly used for outer surface treatment of pipes.
In the maintenance of Q345B seamless steel pipe, attention should be paid to rust and rust removal. These are the basic operations of maintenance. Therefore, for Q345B seamless steel pipe, it is necessary to continuously improve the performance, enhance the awareness of rust removal, and make Q345B seamless steel pipe. The performance of the steel pipe is more stable, and the role must be more important to play!