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US 6,280,795 B1Granted
Galvanizing of reactive steels
AssigneeCominco Ltd.
InventorsJohn Zervoudis, Gary R. Adams, Victor M. Duarte, Michael Gilles, Richard Sokolowski
Life of this patent
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AssigneeCominco Ltd.
InventorsJohn Zervoudis, Gary R. Adams, Victor M. Duarte, Michael Gilles, Richard Sokolowski
Estimating the term…
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%, vanadium in the amount of 0.02 to 0.12%, and bismuth in the amount of 0.05% to 0.1%, the balance zinc containing up to 1.3 wt. % lead.
An alloy for galvanizing steel consisting essentially of, by weight, aluminum in the amount of 0.001% to 0.007%, tin in the amount of 0.5% to 2%, and one of an element selected from the group consisting of vanadium in the amount of 0.02% to 0.12%, titanium in the amount of 0.03% 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 0.03% to 0.15% vanadium and titanium collectively, and optionally bismuth in the amount of 0.05% to 0.5%, the balance zinc of commercial purity containing up to 1.3 wt. % lead.
An alloy for galvanizing steel consisting essentially of, by weight, aluminum in the amount of 0.001% to 0.007%, tin in the amount of 0. 5% to 2%, vanadium in the amount of 0.02% to 0.12%, and optionally bismuth in the amount of 0.05% to 0.5%, the balance zinc of commercial purity containing up to 1.3 wt. % lead.
An alloy for galvanizing steel consisting essentially of, by weight, aluminum in the amount of 0.001% to 0.007%, tin in the amount of 0.5% to 2.0%, and vanadium and nickel 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, the balance zinc of commercial purity containing up to 1.3 wt. % lead.
An alloy for galvanizing steel consisting essentially of, by weight, aluminum in the amount of 0.001% to 0.007%, tin in the amount of 0.5% to 2.0%, vanadium in the amount of 0.02% to 0.12%, and bismuth in the amount of 0.05% to 0.5%, the balance zinc of commercial purity containing up to 1.3 wt. % lead.
A process for galvanizing steel by immersion in a zinc alloy galvanizing bath comprising:
A process for galvanizing steel by immersion in a zinc alloy galvanizing bath comprising:
A process for galvanizing steel by immersion in a zinc alloy galvanizing bath comprising:
A process for galvanizing steel by immersion in a zinc alloy galvanizing bath comprising:
Dependencies are inferred from the claim text.