| 摘要 |
A coating bath [18] and a process for electrophoretically depositing a forging lubricant precoat [52] on the surface of a titanium workpiece [12] has a specific resistivity in excess of about 400 ohm-centimetres in order to retard simultaneous anodization of the titanium during the electrophoretic deposition process. A high lead, moderate silicate, low alkali metal oxide frit is used in suspension in the bath. Advantageously, the bath also includes an anodic electrocoating resin in colloidal dispersion in the bath. By controlling the degree of anodization and preanodization of the titanium, the thickness of the deposited forging lubricant precoat [52] can be closely controlled. |
