The platinum electrolytic deposition process is an advanced surface treatment used in various industries, particularly aerospace. It involves applying a platinum layer on metallic parts via an electrochemical process. This method is designed to provide superior corrosion protection and is often combined with vapor phase aluminizing (VPA) to enhance the performance of critical components.

Applications 

  • Engine Components: Used for vanes, stators, turbine blades, compressors, and injectors of turbomachinery, as well as other critical engine components where extending the lifespan of parts in a corrosive environment is essential.
  • Maintenance and Repair: Required in maintenance procedures to restore worn parts and extend their lifecycle.
  • Performance Enhancement: Treated parts show significant improvement in performance under severe operating conditions.
Revima technician using specialized laboratory equipment for the analysis of metal components, in a quality control environment. Laboratory analysis of a NiPtAl-coated sample

Operating Principles

  1. Preparation: Parts to be treated are carefully degreased and cleaned to remove any surface contaminants, ensuring optimal adhesion of the coating.
  2. Masking: Innovative masking solutions are applied to the parts to protect areas that do not require coating. This ensures that the platinum deposition is limited to critical areas, avoiding overspill.
  3. Immersion: The masked parts are immersed in a bath containing a platinum electrolyte solution. The immersion time and amperage are strictly controlled to ensure a uniform and precise application of the platinum layer.
  4. Laboratory Control: After deposition, a sample is rigorously inspected in our laboratory to measure the coating thickness, verify its uniformity, and ensure it meets the required specifications.
  5. Diffusion: The coated parts are then placed in furnaces where the temperature cycle and diffusion time are meticulously controlled to promote optimal platinum diffusion into the material.
  6. Coupling with VPA: To enhance corrosion resistance, the platinum coating can be combined with a vapor phase aluminizing (VPA) treatment, providing dual protection for components through the creation of a NiPtAl coating.

Advantages of the Process

  • Corrosion Resistance: The platinum coating forms an effective protective barrier against corrosive elements, thus extending the lifespan of components.
  • Application Flexibility: Thanks to our innovative masking techniques, we can apply the coating selectively, avoiding overspill areas and precisely adhering to specifications.
  • NADCAP Certification: Our NADCAP certification ensures that our processes meet the highest standards of the aerospace industry.
Vapor Phase Aluminizing
seo-action
seo-corner

Usage at Revima Engine Parts

At Revima Engine Parts, we use platinum electrolytic deposition for the production of new parts or high-precision repairs for major clients such as Safran and Pratt & Whitney. This process is essential for enhancing the corrosion resistance of critical engine components.

We primarily treat aerospace parts but also cater to other demanding industrial applications. Thanks to our various baths and masking techniques, we guarantee optimal performance, increased protection, and compliance with specifications for critical components. The platinum electrolytic deposition, often coupled with the VPA process, offers dual protection, ensuring durability and efficiency of parts in the most demanding conditions.

Additionally, the Revima design office is available to assist clients in developing technical specifications tailored to their needs, determining the most suitable coating process. We also offer our expertise to evaluate the feasibility of your projects and provide comprehensive advice and technical assistance.

Conclusion

Platinum electrolytic deposition is an advanced solution for corrosion protection, essential for engine components subjected to extreme conditions.

By combining this treatment with VPA, Revima ensures not only uniform coverage but also optimal diffusion, guaranteeing the reliability and safety of treated parts.

Contact us at

soa-customers@revima.com