| 摘要 |
<p>A method for anodic surface treatment of metal surfaces comprising the steps of providing a treatment container containing a treatment solution comprising one or more of the following substances: tap water, dilute nitrate salts, dilute hydrochloric acid, dilute nitrite salts, dilute sulfuric acid, stannous and stannic salts and dilute nitric acid, positioning at least first and second electrodes in the treatment container, applying AC electrical current across the electrodes and causing a metal element to be located in the treatment container during application of the AC electrical current across the electrodes. DC surface treatment is also described.</p> |
