FIELD: metallurgy.
SUBSTANCE: invention relates to usage of solution for treatment of galvanised steel sheet with applied on it metallic coating. Water solution, containing sulphate ions SO4 2- with concentration, exceeding or equal to 0.01 mole/l, it is applied for treatment of surface of steel sheet, containing applied at least to one of its sides metallic coating on the basis of zinc or its alloys, for reduction of formation of powder or metallic particles on the basis of zinc or its alloys at destruction of coating during extrusion of specified sheet.
EFFECT: reduction of amount of lubricating oil and improvement of temporary corrosion prevention of sheet.
17 cl, 2 dwg, 3 tbl, 3 ex
| Title | Year | Author | Number |
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| PAINTED GALVANIZED STEEL SHEET | 2013 |
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| SOLID LUBRICANT FOR GALVANIZED STEEL | 2015 |
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| METALLIZING PRELIMINARY TREATMENT OF ZINC SURFACES | 2008 |
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| TREATMENT METHOD OF METALLIC SURFACES BY MEANS OF CARBOXYLATION, APPLICATION OF THIS METHOD FOR TEMPORARY PROTECTION AGAINST CORROSION AND MANUFACTURING METHOD OF DEFORMED AND CARBOXYLATED SHEET | 2006 |
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RU2384653C1 |
