Method for producing a metal sheet having oiled Zn—Al—Mg coatings, and corresponding metal sheet
US10294558B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Apr 25, 2013 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Apr 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12549
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for producing a metal sheet is provided. The method includes providing a steel substrate having two faces, depositing a metal coating on each face by dipping the substrate in a bath, cooling the metal coatings, altering layers of magnesium oxide or magnesium hydroxide formed on the outer surfaces of the metal coatings, and depositing a layer of oil on the outer surfaces of the metal coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.