Fluoride Ion Techonlogy For Turbine Blade Repair

Fluoride ion cleaning technology is an efficient surface cleaning method, widely used in precision manufacturing, electronics, aerospace and

other fields. This technology uses the chemical properties of fluoride to remove oxides on the blade surface and oxides deep in the cracks

through chemical reactions or physical actions, greatly reducing the maintenance cost of aircraft engines, greatly improving maintenance

efficiency, and solving the processing and repair problems of aircraft engine and gas turbine blades.

Crack tip oxide film pulsed fluoride ion ultra-low damage cleaning technology

Before cleaning: The blade surface may be covered with oxide layers, oil, dust or other contaminants, causing the surface to look dull, mottled or uneven.

Contaminants and oxide layers may shorten the life of the blades and increase the frequency of maintenance and replacement.

After cleaning: The blade surface becomes brighter and more uniform, and the contaminants and oxide layers are removed, making the surface look cleaner and smoother. 

Cleaning removes harmful substances, which can extend the service life of the blades and reduce maintenance costs

Large gap brazing repair technology

These photos can clearly show the X-ray flaw detection comparison before and after brazing repair, especially the original crackshave been well repaired. This clear comparison clearly shows the excellent results of the repair process, which not only proves theprofessional level of the technicians, but also shows the world the powerful power of brazing technology in repair projects. Suchresults will undoubtedly bring great impetus to the progress and development of related industries, and are also a perfect testimonyto the hard work of engineers.

Before cleaning, the surface of the blade may be covered with oxide layers, carbon residues and other contaminants,resulting in a rough, dull surface, or even tiny cracks or flaws. However, once cleaned with fluoride ions, theseproblems seem to be swept away, and the blades are brand new! The surface is clean and smooth, with no tracesof residues and oxide layers, the glossiness is significantly improved, and cracks and flaws are effectively repaired,making the blade state glow with new vitality and brilliance. This huge change not only improves the appearancequality of the blade, but more importantly, it also provides a solid guarantee for the performance and life of theblade, ensuring its reliable operation in high temperature and high pressure environments.

Scanning electron microscopy before cleaning

Scanning electron microscopy after cleaning, oxygen content decreased

Advantages of fluoride ion cleaning technology 

High-efficiency cleaning ability: 

Fluoride ion cleaning technology can quickly and thoroughly remove the oxide layer, carbon residue and other contaminants on the surface ofturbine blades, ensuring the cleanliness and smoothness of the blade surface. 

Non-contact cleaning:

Turbine blades are precise and complex parts, and traditional mechanical cleaning methods may cause surface damage or deformation. Fluorideion cleaning technology removes dirt through chemical reactions and physical actions, avoiding this risk and ensuring the geometry andperformance of the blades. 

Applicable to high temperature and high pressure environment: 

Turbine blades are subjected to extreme high temperature and high pressure conditions in the internal working environment of the engine.Fluoride ion cleaning technology can be carried out under high temperature and high pressure conditions, with good cleaning effect, whichmeets the special working environment requirements of turbine blades. 

Reduce surface fatigue and oxidation:

The surface of the cleaned turbine blades is smooth, which not only reduces aerodynamic resistance and improves engine efficiency, but alsoreduces surface oxidation and fatigue cracks, and extends the service life of the blades.

Environmental protection and energy saving:

Compared with traditional chemical cleaning methods, fluoride ion cleaning technology does not require the use of a large amount of organicsolvents, has low waste liquid treatment costs, and meets environmental protection requirements. In addition, the surface of the cleaned turbineblades is smoother, which reduces aerodynamic resistance and helps improve the fuel efficiency of the engine. 

Process controllability: 

Fluoride ion cleaning technology has good process controllability, and the operating parameters can be precisely controlled to ensure theconsistency and repeatability of the cleaning effect.

Improve maintenance efficiency: 

The surface of the cleaned turbine blade is easier to inspect and maintain, which improves the efficiency and safety of maintenance operations.