Metallic Material Coating Processes TRIZ Cases
- Chromium-Free Phosphate Coating for Acid-Sensitive Metals
Peroxo compounds in an acidic phosphate coating suppress hydrogen gas and soluble salts, enabling stable ceramic protection on acid-sensitive metals.
- Thiol-Ene Beta-Diketone Primers for Durable Metal Adhesion
Chelating diketone and oxirane groups bridge metal surfaces and epoxy adhesives, improving bond strength and adhesion durability.
- Mg-Al-Ca Alloy Surface Oxide Film Without Base Material Damage
Alkali immersion plus low-power laser converts Mg(OH)2 to dense MgO on Mg-Al-Ca alloy, improving corrosion resistance without base damage.
- Solid Product Layer Stabilization for Molten Salt Corrosion Resistance
Maintaining dissolved solid-product concentration at saturation helps preserve protective layers and cut molten salt corrosion.
- Selective Zinc Phosphate Activation for Mixed-Metal Corrosion Coatings
Controlled wetting with a crystal-seeded aqueous dispersion cuts activation use while maintaining compact, uniform zinc phosphating on zinc and iron surfaces.
- Pipeline Pretreatment Coating for Friction and Corrosion Reduction
Colloidal nanoparticle pretreatment coats pipeline interiors to cut pressure drop, reduce friction, and limit corrosion and deposits.