The air storage tank pickling and passivation
During the production of air storage tanks, there are often weld spots, weld slag, oil stains, dust, etc. For some applications with high cleanliness requirements, in addition to using stainless steel to manufacture air storage tanks, it is usually necessary to add pickling and passivation processes.
Pickling is used to clean dirt and remove rust, while passivation is used to form a film for corrosion prevention. Pickling firstly cleans the air tank, and then passivation protects, so that the air storage tank is durable, not easy to rust, and has longer service life.
Pickling is the process of thoroughly cleaning all rust, scale, and weld spots from the surface of the air storage tank.
1. Removal of dirt: Removes oxide scale, weld spots, weld slag, rust, oil, and dust from the air tank surface.
2. Cleaning of surface: Removes all rust, blackening, yellowing, and peeling from the air storage tank surface.
3. Surface roughening: Makes the surface uniform and clean, laying a good foundation for passivation, painting, and subsequent anti-corrosion treatment.
Passivation is providing a protective anti-corrosion film on the air storage tank, making it durable and rust-free.
1. Corrosion and rust prevention: Forms a dense protective film on the air tank surface, isolating it from air and moisture, making it less prone to rusting.
2. Improved corrosion resistance: Especially for stainless steel, passivation significantly improves its resistance to corrosion, rust, moisture, and media.
3. Stabilized material properties: Eliminates the risk of intergranular corrosion after welding, extending the service life of the air storage tank.
4. Stable appearance: After passivation, the air tank surface color is uniform and less prone to yellowing or blackening.
The cost of pickling and passivation for air storage tanks is usually calculated based on surface area/volume/weight. If a customer requires pickling and passivation when customizing a air storage tank, please communicate with the air storage tank manufacturer from the beginning, and get a final quotation. Welcome to customize air tanks with pickling and passivation process from YCZX.
