Phosphate Coating

Allowing us to maintain meticulous control over the phosphate coating process. Here’s a detailed breakdown of how we achieve exceptional phosphate coatings:

Thorough Surface Preparation: The first step is to meticulously clean the cast components. We utilize methods such as sandblasting or chemical cleaning to remove contaminants, scale, or rust. This preparation is crucial for ensuring excellent adhesion of the phosphate layer.

Pre-Coating Inspection: Each component is inspected for any defects or irregularities that might affect the coating’s performance. This assessment allows us to tailor our approach to meet the specific needs of each part.

Phosphate Bath Application: The cleaned cast parts are immersed in a heated phosphate solution, typically consisting of zinc, manganese, or iron phosphates. This bath operates at controlled temperatures to ensure uniform coating. The phosphate ions react with the metal surface, forming a crystalline layer that provides excellent adhesion for subsequent treatments.

Controlled Drying: After coating, the parts are removed from the bath and undergo a controlled drying process. This step helps to solidify the phosphate layer and ensures no moisture remains, which could compromise the coating's effectiveness.

Post-Coating Treatment: To enhance the protective qualities of the phosphate coating, we may apply additional treatments such as oiling or sealing. These treatments further improve corrosion resistance and reduce friction, especially in applications involving moving parts.

Stringent Quality Control: We conduct comprehensive quality checks on each coated part. This includes measuring the thickness of the phosphate layer, inspecting for uniformity, and conducting adhesion tests to ensure compliance with industry standards. Only components that meet our rigorous criteria are approved for delivery.