FIELD: metal working. SUBSTANCE: liquid has, %: sodium polyphosphate 1.3-1.7; sodium monosubstituted ortho-dihydrogen phosphate 1.3-1.7; potassium bichromate 0.06-0.08; zinc sulfate 0.08-0.1; ortho-phosphoric acid 0.02-0.08, and water - the rest. EFFECT: enhanced effectiveness of liquid. 2 tbl
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Authors
Dates
1996-10-10—Published
1991-04-19—Filed