Composition and process for lubricated plastic working of metals
AssigneeHenkel Corporation
InventorsYasuo Imai, Shuji Nagata
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Abstract
A lubricant composition for the plastic working of metals that does not require a phosphate undercoating, is waterborne, requires only a simple application process of immersion or spraying followed by drying, and provides an excellent lubricating performance comprises synthetic resin, water-soluble inorganic salt, and water. The weight ratio of the content of salt to that of synthetic resin is from 0.25:1 to 9: 1. This composition can also contain liquid and/or solid lubricating agent(s) and an extreme pressure additive.
Claims19
A liquid composition that when dried forms a solid lubricant for the plastic working of metals, said liquid composition comprising water and the following components:
- (A) a component of dissolved, dispersed, or both dissolved and dispersed synthetic resin selected from the group consisting of polyvinyl alcohol, Polyvinylpyrrolidone acrylic resins, vinyl acetate resins, epoxy resins, urethane resins, phenolic resins, and mixtures of any two or more of polyvinyl alcohol, polyvinylpyrrolidone, acrylic resins, vinyl acetate resins, epoxy resins, urethane resins, and phenolic resins,
- (B) a component of dissolved water-soluble inorganic salt and
- (C) a lubricating agent component selected from the group consisting of metal soaps, waxes, polytetrafluoroethylene, oils, and mixtures of any two or more of metal soaps, waxes, polytetrafluoroethylene and oils,
- said components (A) and (B) being present in the composition in amounts such that the ratio by weight of component (B) to component (A) is within a range from 0.25:1.0 to 9:1.0 and said component (C) constituting from 1 to 20 percent by weight of the total liquid composition.
Dependencies are inferred from the claim text.