| 摘要 |
<p>The rapid, low-temperature formation of a bright blue surface on hot-dip zinc/aluminum alloy-plated steel sheet that contains 0.1 to 60 weight % aluminum in the alloy, or on other surfaces of similar chemical composition, using conventional surface-treatment equipment, is achieved by treating the surface with a treatment bath that has a pH of 3.5 to 6.0 and that contains molybdenum compound at 0.2 to 3.0 weight % as molybdenum and simple or complex fluoride at 0.1 to 2.0 weight % as fluorine.</p> |
