Galvanizing of reactive steels
US6280795A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Dec 2, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C18/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy for galvanizing steel comprises, by weight, aluminum in the amount of at least 0.001% to 0.007%, preferably 0.002 to 0.004%, tin in the amount of at least 0.5% to a maximum of 2%, preferably at least 0.8%, and one of an element selected from the group consisting of vanadium in the amount of at least 0.02%, preferably 0.05% to 0.12%, titanium in the amount of at least 0.03%, preferably 0.06% to 0.10%, and both vanadium and titanium together in the amount of at least 0.02% vanadium and at least 0.01% titanium for a total of at least 0.03%, preferably 0.05% to 0.15%, the balance zinc containing up to 1.3 wt. % lead. In another embodiment, the alloy comprises, by weight, aluminum in the amount of at least 0.001%, tin in the amount of 0.5% to 2%, and vanadium and nickel together in the amount of at least 0.02% vanadium and at least 0.02% nickel to a maximum of 0.15% vanadium and nickel collectively. Titanium may be added in an amount, by weight, of at least 0.01% titanium to a collective maximum of 0.2% vanadium, nickel and titanium. In a further embodiment, the alloy comprises, by weight, aluminum in the amount of at least 0.001%, tin in the amount of about 0.5% to about 2%, v…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.