Multilayer Coating

Maximizing Durability and Performance for Casted Components.

What is Multilayer Coating?

Multilayer coating involves the application of multiple layers of different materials to create a protective barrier that enhances the overall performance of metal components. Each layer is designed to address specific challenges, such as corrosion resistance, wear protection, and thermal stability. This innovative solution is particularly beneficial in industries such as aerospace, automotive, and heavy machinery, where component longevity and reliability are critical.

Here’s a detailed breakdown of our multilayer coating process:

Extensive Surface Preparation: We begin with meticulous surface preparation to ensure optimal adhesion for each layer of the coating. This involves cleaning processes such as sandblasting, ultrasonic cleaning, or chemical degreasing, aiming to remove any contaminants and imperfections from the surface of the cast parts.

Pre-Coating Inspection: Each component undergoes a thorough inspection to identify surface defects or irregularities. This allows us to customize our multilayer coating strategy to meet the specific needs of each part, ensuring that we achieve the best possible results.

Layered Application Process: The multilayer coating process is where our in-house furnaces truly shine. Utilizing advanced techniques such as thermal spraying, chemical vapor deposition (CVD), and physical vapor deposition (PVD), we apply multiple layers of various materials, including ceramics, metals, and polymers. Each material is chosen for its unique properties, such as:

Base Layer: Often a high-performance metal layer that provides initial strength and adhesion.

Intermediate Layer: A ceramic or polymer layer that enhances wear resistance and provides thermal insulation.

Top Layer: A final protective layer, typically composed of a corrosion-resistant material that offers superior protection against environmental factors.

By carefully controlling the thickness and composition of each layer, we can tailor the coating to meet specific application requirements.

Controlled Curing and Sintering: After applying the multilayer coating, the components are placed in our advanced furnaces for curing and sintering. This process solidifies each layer, enhancing adhesion and durability while ensuring that the coatings are bonded effectively to the substrate.

Post-Coating Treatments: To maximize the performance of the multilayer coatings, we may apply additional treatments such as polishing or sealing. These post-coating processes improve surface finish and ensure maximum protection against wear and corrosion.

Comprehensive Quality Control: Each coated part undergoes strict quality checks, including measuring layer thickness, adhesion testing, and visual inspections. This rigorous process guarantees that all coated components meet our high standards and are ready for demanding applications.

Benefits of Multilayer Coating for Cast Parts

Enhanced Wear Resistance: The combination of different materials in a multilayer coating provides robust protection against abrasion and wear, significantly extending the life of components.

Exceptional Corrosion Protection: By layering corrosion-resistant materials, we create a formidable barrier against moisture and chemicals, reducing the likelihood of rust and degradation.

Thermal Stability: Multilayer coatings can withstand extreme temperatures, making them ideal for applications in high-heat environments without compromising performance.