FIELD: material engineering.
SUBSTANCE: group of inventions relates to variants of composition systems for processing a metal substrate, methods for processing a metal substrate and metal substrates. The first variant of the composition system for processing a metal substrate contains a conversion composition containing a permanganate anion and a sealing composition containing a trivalent chromium cation in an amount from 0.005 to 1 g/l based on the total mass of the sealing composition. The second variant of the composition system for processing a metal substrate contains a cleaning composition containing a hydroxide source, a phosphate source and/or a corrosion inhibitor, including a metal cation and/or azole, and a conversion composition containing a trivalent chromium cation in an amount from 0.005 to 1 g/l based on the total mass of the conversion composition.
EFFECT: protection of the metal surface from corrosion is provided.
20 cl, 2 dwg, 8 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SYSTEMS AND METHODS FOR PROCESSING OF METAL SUBSTRATE | 2017 |
|
RU2728344C1 |
| SEALING COMPOSITION | 2017 |
|
RU2722953C1 |
| SYSTEM AND METHOD FOR TWO STAGE PRE-TREATMENT | 2018 |
|
RU2744461C1 |
| PRE-TREATMENT COMPOSITION | 2017 |
|
RU2751038C2 |
| PREPARATION OF TREATMENT COMPOSITION AND BATH MAINTENANCE SYSTEM AND METHOD FOR TREATMENT FORMED THEREFROM | 2017 |
|
RU2721259C1 |
| SYSTEMS AND METHODS FOR PROCESSING A METAL SUBSTRATE USING A COMPOSITION FOR THIN-FILM PRETREATMENT AND A SEALING COMPOSITION | 2017 |
|
RU2734961C2 |
| IMPROVED COMPOSITION CONTAINING TRIVALENT CHROMIUM USED IN CORROSION RESISTANT COATING ON METAL SURFACE | 2007 |
|
RU2434972C2 |
| INDICATIVE COATINGS FOR METAL SURFACES | 2013 |
|
RU2619376C2 |
| METHOD FOR TREATING A FERROUS METAL SUBSTRATE | 2014 |
|
RU2653028C2 |
| PERMANGANATE-BASED CONVERSION COATING COMPOSITIONS | 2014 |
|
RU2631226C2 |
