Chromatisation TRIZ Cases
- Copper Foil Antioxidant Coating for 210°C Heat Resistance
Organic heteroatom compounds with hexavalent chromium form a dense copper foil passivation layer that resists 210°C oxidation with lower treatment cost.
- ZnNi Multilayer Pipe Plating for Bendable Corrosion Resistance
A two-layer ZnNi coating with graded Ni content preserves bend workability while maintaining heat and corrosion resistance at pipe bends.
- Surface-Treated Steel Sheet for BPA-Free Paint Corrosion Resistance
A chromium-containing layer with light-element-rich linear regions improves corrosion resistance at BPA-free painted parts without hexavalent chromium.