| 摘要 |
The multifunctional aqueous lubricant according to the invention comprises at least one water-soluble salt of dithiodiglycolic acid and at least one water-soluble compound chosen from the group consisting of: a) phosphoric esters of general formula: in which R represents an alkyl, alkenyl or alkylaryl radical having from 6 to 20 carbon atoms, k is equal to 2 or 3, m is a number ranging from 0 to 20 and x is equal to 1 or 2, and their salts, and b) water-soluble salts of alkylthio acids of general formula:<paragraph lvl="0"><in-line-formula>R'-S-(CH2)n-COOH (II)</in-line-formula>in which n is a number ranging from 1 to 10 and R' represents an alkyl, alkenyl or aryl radical having from 6 to 20 carbon atoms, the ratio by mass of dithiodiglycolic acid to compound(s) I and/or II being between 1/1 and 50/1.
|
