CORROSION-PROTECTION SYSTEM FOR TREATING METAL SURFACES

摘要

The present invention relates to a corrosion-protection system suitable for producing aqueous metal treatment and metal processing fluids, particularly corrosion-protection, cleaning and cooling lubricant emulsions. The corrosion-protection system comprises carbonic and/or phosphonic acids, as well as at least one amine with at least one oxybis(alkylamine) unit. Such corrosion-protection systems effectively protect metal surfaces from corrosion and have a high level of water solubility, which is essential for formulating aqueous concentrates for metal treatment and metal processing fluids. The present invention further relates to an aqueous surface-active and corrosion-protecting preparation containing the corrosion protection system and an emulsifier system, as well as an oil-containing water-miscible emulsion concentrate, which supplies the ready-to-use corrosion-protection, cleaning and cooling lubricant emulsions by dilution with water.

主权项

1. A corrosion protection system for the manufacture of aqueous metal-treatment and metal-processing liquids, comprising
a) one or more aliphatic carboxylic acids having at least 6 but no more than 14 carbon atoms, and/or carboxylic acids, having a carbon chain and oxygen heteroatoms inserted into the carbon chain, that comprise between 6 and 26 atoms in the carbon-heteroatom chain, and/or aliphatic phosphonic acids having at least 4 but no more than 18 carbon atoms, b) at least one amine that comprises at least one oxybis(alkylamine) unit having tertiary amino groups, the alkyl chains of said unit being made up in each case of no more than 4 carbon atoms.