| 摘要 |
FIELD: mechanical engineering; chemical treatment of surfaces of metals; prevention of corrosion; preparation of metal surfaces for application of paints and varnishes without preliminary removal of corrosion; treatment of weld seams and oil and gas pipe lines coated with scale. ^ SUBSTANCE: proposed rust reforming agent contains the following components, mass-%: arthophosphoric acid (85%), 45-65; ferro-prussiate -potassium ferrocyanide, 3.0-4.0; aluminum nitrate, 2.0-3.0; zinc nitrate, 0.5-1.5 and fluorocarbon compound, 0.01-0.1 of total formula where RF=6F13-, C8F17CO-, CF3(3F6)3-12-CF(CF3)-, at n=2,3,4 at m=0-7 or and water, up to 100%. Protective film may be used as primer for application of paints and varnishes. ^ EFFECT: enhanced durability of film formed on metal excluding further corrosion due to protection effect arising between film and parent metal. ^ 1 tbl |
