Anti-Oxidation Treatment for Aerospace Parts

The core methods of the anti-oxidation treatment include laser marking, chemical coating, and vacuum packaging. These techniques help users to understand how to use scientific methods to extend the lifespan of parts and ensure that markings are clear. They are applicable to the needs of the aviation maintenance and parts manufacturing industries.

Why do the parts need to be treated against oxidation?

Aerospace parts often face extreme environments of high temperature, high humidity, and strong corrosion. If markings are directly exposed to air, oxidation reactions can cause the text to become blurred or even disappear.Take for example the serial numbers on the parts of aircraft engines. If the numbers are corroded, it may take several times longer to find the faulty part during maintenance.So, anti-oxidation treatment is not only a protective mark, it's also a key link in flight safety.

The mainstream of anti-oxidation marking technology.

Laser engraving + surface passivation.

Laser marking can produce high-precision markings on the surface of parts, but the oxidation problem remains.At this point you can use a passivation treatment, which is a chemical agent that forms a protective film over the marked area.This method is low cost and highly efficient, and is particularly suitable for mass production of fasteners and connectors.

The chemical coating is applied.

The marking can be sprayed or dipped in a high-temperature oxidation resistant coating, such as a ceramic-based material, to form a "protective shield" around it.This approach is especially suitable for parts of complex shapes, such as turbine blades, but the thickness of the coating must be carefully controlled, as a coating that is too thick can affect the precision of assembly.

Vacuum packed.

Special parts such as precision sensors can be marked and packaged in a vacuum environment.Although the equipment investment is higher, it can completely isolate oxygen, making it appropriate for long-term storage or for parts used in extreme environments.

How should one choose the most suitable plan?

Before making a decision, ask yourself three questions: How bad is the working environment? What is your budget? How long must the marking last? For example, for ordinary parts in the cabin, oxidation is enough, but for rocket engines, a coating plus vacuum protection is required.

Small tips for daily maintenance.

Even if the metal has been treated to resist oxidation, it still requires regular inspection.It is recommended that every six months, the marked area be scanned with non-destructive testing equipment, and that if any coating has fallen off, it be repainted immediately.If the parts show signs of oxidation, use a soft cloth and cleaning solution to wipe them gently. Never use sandpaper.