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US 12,674,228 B2Granted
Aluminum-zinc alloy plated steel sheet having excellent hot workability and corrosion resistance, and method for manufacturing same
AssigneePosco
InventorsSuk-Kyu Lee, Il-Jeong Park, Myung-Soo Kim
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Abstract
The present disclosure relates to a manufacture for manufacturing an Al—Zn alloy plated steel sheet having high hot workability and corrosion resistance.
Claims5
A method for manufacturing an Al—Zn alloy plated steel sheet, the method comprising:
- immersing and discharging a steel sheet in and from a plating bath which comprises, by wt %, Zn:
- 10% to 30%, Si:
- 1% or less, and a balance of Al and inevitable impurities;
- air wiping the steel sheet within a temperature range of 200° C. to 300° C. to adjust a thickness of a plating layer of the steel sheet discharged from the plating bath;
- and
- forming an alloy plating y alloying the thickness-adjusted plating layer of the steel sheet within a temperature range of 500° C. to 670° C.
3 more elements
Dependencies are inferred from the claim text.