Comprehensive Solution for High-Temperature Diffusion Coating Shielding in New Materials

In modern aviation industry, the selection of materials and coating technology for turbine blades is one of the key research areas. These blades endure tremendous temperatures and pressures, thus requiring meticulous design and processing to ensure their performance and lifespan. In the manufacturing and maintenance process of turbine blades, an essential aspect is the coating process.

The coating of turbine blades is not merely for aesthetics but more importantly to shield the blade surface from high temperatures and corrosion. However, a common challenge in the coating process arises: certain areas do not require coating but must maintain their original performance. These areas may be due to dimensional precision not allowing for spraying or the inability to expose them to high temperatures during engine operation.

To address this challenge, we need to introduce UNIQE's series of shielding solutions for high-temperature diffusion coating processes, including shielding putty and shielding tapes, as well as powder and paste shielding products specifically designed for blade roots. Particularly, the combination of shielding powder or shielding paste with tooling fixtures achieves an ideal shielding effect, effectively preventing the formation of coatings in areas where they are not needed.

Shielding products are suitable for various high-temperature diffusion coating processes, such as powder pack cementation, slurry aluminizing, vapor-phase aluminizing, chemical vapor deposition, and physical vapor deposition. Regardless of the coating process, our products provide reliable shielding effects, ensuring the original performance and stability of turbine blades in critical areas.

High-temperature diffusion coating shielding materials for aviation new materials effectively prevent the formation of coatings on turbine blades and specific areas where spraying is not allowed due to dimensional precision, and exposure to high-temperature areas during engine operation is prohibited.

High-temperature diffusion coating shielding materials are mainly composed of four groups of materials, suitable for different application environments:

1. Shielding tapes: Mainly used for flat surfaces, with longer lifespan.

2. Shielding putty: Highly flexible, protecting sharp edges or irregular parts, can be customized into various shapes.

3. Shielding powder: Used to fill the gaps between blade components coated with putty or tape when placed in tooling fixtures, preventing coating steam from penetrating into the root area of the blade, especially suitable for large tooling fixtures.

4. Shielding paste: Functions similarly to powder, used in an injector when components are shielded and placed in tooling fixtures to fill the gaps between the fixture and the component, avoiding leakage points.

Product features:

1. Effectively avoids protective leakage points.

2. Shielding powder and paste fill the gaps at blade roots.

3. Eliminates the need for multi-layer application of shielding mud.

4. Tapes and putty can be customized into various shapes.

5. Temperature resistance up to 1150°C.

6. Easy to use and remove.

7. No curing required, saving time.

8. Different colors distinguish isolation layers and protective layers.

9. Various product combination schemes suitable for different shapes.

10. Improves work efficiency.

Application Techniques:

1. Pack cementation.

2. Vapor-phase aluminizing (VPA).

3. Slurry aluminizing.

4. Chemical vapor deposition (CVD).

5. Physical vapor deposition (PVD).

Application Performance:

Shielding products have been applied to turbine components of GE, RR, PW, Honeywell, and various air forces' engines.

In the aviation industry, the performance of turbine blades directly affects the aircraft's power output and fuel efficiency. Therefore, ensuring the quality of coating on the blade surface is crucial. By using high-temperature diffusion coating shielding materials for aviation new materials, not only can the precision and efficiency of the coating process be improved, but maintenance costs and risks can also be reduced, providing a reliable solution for the aviation industry.