FIELD: chemical treatment of products made of high-alloy steels and alloys applicable in technology of chemical treatment of surfaces of pipes, rods, strips, sheets. SUBSTANCE: solution for removal of scale from products made of high-alloy steels and alloys contains, g/l:nitric acid 60-180; ammonium fluoride-bifluoride 20-60; product of condensation of benzilchloride with ammonia and formaldehyde (inhibitor BA-6) 0.1-0.9 and surfactant neonol AF 9-12, grade A 0.1-0.4. EFFECT: higher efficiency. 2 tbl
Title | Year | Author | Number |
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SOLUTION FOR REMOVING OXIDE FILMS FROM METAL PRODUCTS | 0 |
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METHOD OF CALCIUM FLUORIDE PRODUCING | 1992 |
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RU2033472C1 |
Authors
Dates
1996-06-10—Published
1992-12-11—Filed