STEEL OXIDANT BLACKEN
Black oxide, blackening, oxidation, black oxide coating, or passivation are common terms used to describe the process of forming a black iron oxide layer on the surface of metal. AT Coating is proud to be a leading provider, trusted by both domestic and international clients, for metal blackening services.
1. What is Steel Oxidant Blacken?
- Black oxide is a chemical conversion coating process. The black oxide layer is created through a chemical reaction between iron on the metal surface and oxidizing salts present in the black oxide solution.
- The oxidizing salts include:
+ Penetrating agents
+ Catalysts
+ Activators
+ Additives
- This chemical reaction results in the formation of black iron oxide (magnetite, Fe3O4) on the coated metal surface.
- The blackening method is versatile and optimized for use across various industries.
2. What Should Be Done After Metal Blackening?
- Post-treatment processes enhance the corrosion resistance of the metal while creating a deeper black appearance.
- To further improve corrosion resistance, additional layers can be applied, such as:
+ Anti-rust oil
+ Heavy-duty water-displacing oil
+ Rust inhibitors
3. Detailed Specifications
- Corrosion resistance: Excellent
- Thickness and hole tolerance control (GO/NOGO): Applicable
- Standard thickness: Below 1µ
- Color: Deep Black
- Salt spray testing: Not applicable
- Maximum dimensions: 1800 x 900 x 20 mm (For larger dimensions, please contact us for feasibility.)
- Completion time/quotation: Negotiable
For any inquiries regarding Steel Oxidant Blacken services, please contact us for timely consultation and assistance!
