Stainless steel elbow should pay attention to rust prevention

Stainless steel elbow occupies a very important position in the pipeline, but the use of stainless steel elbow for a long time will inevitably rust, rust will not only cause damage to the pipe, but also lead to serious leakage problems, resulting in serious economic losses, so stainless steel elbow to pay attention to rust prevention.

Stainless steel elbow points of attention

Pay attention to stainless steel elbow anticorrosion can extend its service life. However, different regions of stainless steel elbow anticorrosion practices are not the same, in the southern region of China is more humid, but also said in chemistry hydrogen evolution corrosion, water is one of the substances that make iron easy to rust

Only when the oxygen in the air is dissolved in water, and the oxygen reacts with iron in the presence of water, will it form something called iron oxide, which is rust.

Rust is a brownish-red substance, it is not as hard as iron, it is easy to fall off, a piece of iron completely rusted, the volume can expand to 8 times the original.

If the rust is not removed, the spongy rust will also be particularly easy to absorb moisture, which will accelerate the corrosion of stainless steel elbows. Therefore, affected by the humid climate in the southern region of China, the corrosion protection of stainless steel elbows must be selected.

In the corrosion prevention of stainless steel elbows, if the corrosion of the pipeline is relatively thick, it is necessary to gently knock with a hand hammer to make the rust layer fall off. When the rust layer is not thick, then use a wire brush, wire cloth or coarse abrasive cloth to wipe the surface until the original color of the pipe is exposed and then wipe with cotton yarn head. This method is only suitable for sporadic and dispersed rust, and is not suitable for large area use.

Sand blasting is an advanced rust removal method in chemical pipeline anticorrosion, which can not only remove the rust layer, the old paint layer and other dirt on the surface of the steel pipe

It can also form uniform small pitting spots on the surface of the steel pipe, which can increase the adhesion between the anti-corrosion coating and the metal pipe, improve the anti-corrosion effect and service life of the coating, and bury a good fofodow for the next step.

Stainless steel elbows buried in the ground are generally subjected to a chemical pickling process, which can remove rust and old coatings. However, it should be noted that although chemical pickling can clean the surface of stainless steel elbows, its anchor pattern is shallow and it is easy to cause environmental pollution

Therefore, under normal circumstances, it is not recommended to use chemical cleaning. Therefore, there is now an anticorrosive stainless steel elbow on the market, which is not only not easy to rust, but also strong and beautiful, and is very popular in the market.