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=С6F13СО-, C8F17CO-, CF3О(С3F6О)3-12-CF(CF3)СО-, 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
| Title | Year | Author | Number |
|---|---|---|---|
| METAL SURFACE TREATMENT COMPOSITION | 2005 |
|
RU2299267C1 |
| RUST CONVERTER | 2001 |
|
RU2205896C1 |
| METHOD OF COMPLEX PROTECTION OF UNDERWATER SURFACES OF WATER CRAFT AND WATER-DEVELOPMENT WORKS | 2002 |
|
RU2207291C1 |
| COMPOSITION FOR PROTECTION OF UNDERWATER SURFACES OF WATERCRAFT AND WATERWORKS AGAINST FOULING | 2005 |
|
RU2318696C2 |
| COMPOSITION FOR TREATING METALLIC SURFACE | 1997 |
|
RU2120495C1 |
| CONVERTER OF METAL SURFACE | 2008 |
|
RU2371517C1 |
| COMPOSITION FOR CORROSION PRODUCTS REMOVAL AND METAL DEFATTING | 1992 |
|
RU2027794C1 |
| DEVELOPMENT METHOD OF HIGH-STRENGTH HARDWARES FOR MOUNTING OF HEAVY STRUCTURES AND INHIBITORY COMPOSITION FOR ITS TREATMENT | 2007 |
|
RU2354748C2 |
| UNDERCOAT-RUST SOLVENT | 2008 |
|
RU2391367C2 |
| METHOD FOR PHOSPHATATIZING OF RUSTY IRON-CONTAINING SURFACES | 2004 |
|
RU2261938C1 |
