| abstract |
Corrosion-resistant surface treatment chain and corrosion-resistant surface treatment having good corrosion resistance, while a coating film is formed using the top-coating material, and the generation of coating powder is suppressed. Provide sprockets. The roller chain 10 includes an inner plate 11, a bush 12, an outer plate 13, a connecting pin 14, and a roller 15. Each component consists of a zinc-iron alloy undercoat formed by impact galvanization on an iron-based base material, and a water-based anti-corrosion containing an organic compound containing a mercapto group other than zinc, nitrate, and a mercapto group-containing silane coupling agent. And a first coating film formed using a rust paint. And the 2nd coating film is formed on the 1st coating film using the top coat paint containing a pigment, sodium silicate, an acrylic emulsion, or a polyurethane aqueous composition. |