| 摘要 |
The invention relates to a method for preparing metal workpieces for cold forming by applying a lubricant layer either to a metal surface or to a metal surface which has been pre-coated with e.g. a conversion coating. The lubricant layer is formed by contacting the surface with an aqueous lubricant composition which has a content in at least one water-soluble, water--containing or/and water-binding oxide or/and silicate and a content in organic polymer material, the organic polymer material used predominantly being monomers, oligomers, co-oligomers, polymers or/and copolymers based on ionomer, acrylic acid/methacrylic acid, epoxide, ethylene, polyamide, propylene, styrene, urethane, the ester(s) or/and salt(s) thereof. The invention also relates to the corresponding lubricant composition, to the lubricant layer produced thereof and to its use. |
