Stainless steel pipes are the most commonly used materials in the industry. Generally, stainless steel is not easy to rust, but it may also cause rust on stainless steel pipes due to environmental factors. When we find rust on stainless steel, we can remove rust with the following methods.
1. Chemical method:
Use pickling paste or spray to assist the re-passivation of the rusted part to form a chromium oxide surface film to restore its corrosion resistance. After pickling, the surface pollutants and acid residues must be cleaned with clean water.
2. Mechanical method:
Sandblast cleaning, blast cleaning with glass or ceramic particles, annihilation, brushing and polishing. When using the mechanical method, it must be carried out in a dry and clean environment, because the impurities in the air will cause the protective layer damaged by rust to be repaired in time, and the chemical reaction will continue to occur and new rust spots will appear. The mechanical method can only clean the surface of the stainless steel welded pipe without changing the corrosion resistance of the material itself. Therefore, after mechanical cleaning, it needs to be re-polished with polishing equipment and polished with wax cover.
3. Laser Cleaning
Laser cleaning machine 360° non-contact cleaning, no damage to the base material. Zero emission, no chemical pollution. Excellent cleaning effect, fast cleaning speed. The initial investment of the laser cleaning machine is high, but it can be used stably for a long time, with a service life of up to 10 years, low operating cost, high speed, high efficiency, time saving, and a quick return on investment. In the long run, the cost is lower than traditional cleaning methods.