FIELD: metallurgy.
SUBSTANCE: group of inventions relates to options of a method for anticorrosive pretreatment of a metal surface consisting of steel, galvanized steel, aluminum, aluminum alloy, magnesium and/or zinc-magnesium alloy, an aqueous composition for anticorrosive pretreatment of a metal surface, a concentrate for producing the mentioned aqueous composition, a base with a treated metal surface and its application. The methods include bringing the treated metal surface into contact with an acidic aqueous composition A containing at least one compound selected from a group consisting of titanium, zirconium and hafnium compounds, and an aqueous composition B containing at least one (meth)acrylate resin and at least one phenolic resin. The metal surface is brought into contact first with composition A, and then with composition B, or first with composition B, and then with composition A, or simultaneously with composition A and composition B.
EFFECT: inventions provide improved corrosion protection of a metal surface consisting of steel, galvanized steel, aluminum, aluminum alloy, magnesium and/or zinc-magnesium alloy, including due to reducing corrosion delamination.
21 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| IMPROVED METHOD FOR ANTICORROSIVE PRETREATMENT OF METAL SURFACES INCLUDING STEEL, GALVANIZED STEEL, ALUMINUM, MAGNESIUM, AND / OR ZINC-MAGNESIUM ALLOY | 2017 |
|
RU2748887C2 |
| PRETREATMENT OF ALUMINUM SURFACES WITH COMPOUNDS CONTAINING ZIRCONIUM AND MOLYBDENUM | 2016 |
|
RU2750923C1 |
| CHROMIUM-FREE PASSIVATION OF STEEL | 2005 |
|
RU2396370C2 |
| MAGNESIUM ALLOYS | 2008 |
|
RU2456362C2 |
| METHOD OF APPLYING POWDER COAT ON ALUMINIUM BASE LAYER | 2008 |
|
RU2459673C2 |
| WATER-BASED BASE COATINGS WITH INCREASED RESISTANCE TO EFFECT OF CIRCULATION PIPELINE | 2017 |
|
RU2758381C2 |
| METHOD OF APPLYING COATING ON METAL SUBSTRATE | 2008 |
|
RU2515951C2 |
| POLYURETHANE COATING COMPOSITIONS, DEPOSITED DIRECTLY ON METAL SURFACE | 2005 |
|
RU2387685C2 |
| AQUEOUS COMPOSITION FOR COATINGS | 2003 |
|
RU2324718C2 |
| HEAT-SEALING STRUCTURE FOR ALUMINUM DISPOSABLE CONTAINERS FOR BREWED BEVERAGES | 2015 |
|
RU2684463C2 |
