We all know that stainless steel welded pipes have strong corrosion resistance, if used improperly, it will accelerate the corrosion of stainless steel welded pipes, stainless steel welded pipes as one of the green and environmentally friendly pipes, widely used. However, in order to extend its service life, attention should be paid to enhancing the corrosion resistance of stainless steel welded pipes during use.
1. Physical strengthening method: directly use anti-rust oil to prevent rust, that is, oil film to prevent rust; Make the stainless steel surface form a closed oil film to prevent the surrounding environment from meeting the stainless steel surface, so as to prevent stainless steel corrosion and rust. This method has a short anti-rust time, and the stainless steel surface is not clean and refreshing. The advantages are simple operation and low cost.
2. Strengthening method: use stainless steel passivation liquid to contact the surface of stainless steel pipe to produce chemical reaction; This is passivation rust prevention. Under the action of stainless steel passivation liquid, the chromium-poor layer of the pipe is converted into a chromium-rich layer, forming a layer of chromium trioxide on its surface, thereby achieving super anti-rust ability, which is stronger than physical anti-rust oil anti-rust, and the surface is clean. But the cost is higher.
