Passivation is treating a metal surface to make it more corrosion-resistant. The process involves the creation of a thin layer of oxide on the metal surface that acts as a barrier against corrosive agents such as oxygen and water. This layer is typically formed by immersing the metal in an acid bath, which causes a chemical reaction that generates the oxide layer. It is commonly used in manufacturing medical instruments, aerospace components, and food processing equipment, where corrosion resistance is critical for long-term reliability. The process is also widely used in the automotive and electronics industries to protect parts and components from wear and tear caused by exposure to harsh environments.
Materials
Aluminum & Copper
Outcomes
Enhances corrosion and wear resistance
The passivation process:
Passivation is a crucial process in the manufacturing industry that improves the corrosion resistance and longevity of metal components. This section outlines the detailed steps of the passivation process to help achieve optimal results.
Surface Preparation: The first step in the passivation process is to ensure that the metal surface is clean and contaminant-free. Depending on the component’s specific requirements, this may involve degreasing, pickling, or other pre-treatment methods.
Passivation Solution: Once the surface is prepared, the component is immersed in a passivation solution, typically containing nitric acid or other oxidizing agents. This solution helps to form a thin, protective oxide layer on the metal surface, enhancing its corrosion resistance.
Rinsing and Drying: After the passivation process, the component is thoroughly rinsed with clean water to remove residual chemicals. It is then dried using a controlled environment or air-drying method to prevent the formation of water spots or other surface imperfections.
Inspection and Quality Control: The final step in the passivation process involves a comprehensive inspection to ensure the desired level of corrosion resistance. This step may include visual inspections and more advanced testing methods like salt spray or electrochemical measurements.
We are dedicated to providing our clients with top-quality passivation services to ensure that their components are safeguarded against corrosion and perform at their best
Why choose passivation for your next project?
It removes free iron and contaminants from parts to create a protective layer that offers corrosion resistance. This extends the lifespan and durability of metal parts, improves their appearance, and reduces the need for repairs and replacements, resulting in cost savings. Moreover, the process is a simple and cost-effective process that can be performed on various metals, making it an attractive option for businesses to enhance the quality and reliability of their products.