| 摘要 |
FIELD: metal working processes. SUBSTANCE: new water soluble liquids used at working metals contain polyaspartic acid and salts thereof suitable for use as lubricant in processes of cutting, bending, grinding and shaping ferrous and non-ferrous metals. Polyaspartic acid and salts thereof may be easily removed after use without special treatment as they are biologically decomposed, and regeneration is unnecessary. EFFECT: enhanced efficiency of working due to use of new ecologically safe liquid lubricant. 22 cl, 12 tbl, 14 exp
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