ULTRA-HIGH STRENGTH GALVANIZED STEEL SHEET WITH EXCELLENT WELDABILITY AND MANUFACTURING METHOD THEREFOR
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United States of America
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Mar 6, 2025
app pub date -
Nov 19, 2024
filing date -
Nov 19, 2024
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Abstract
In one aspect, a method of manufacturing an ultra-high strength galvanized steel sheet is provided, the method including a step of annealing a cold-rolled steel sheet in an annealing furnace, wherein an annealing time (A) for performing the annealing and a moisture concentration (B) in the annealing furnace are controlled based on the product of the positive square root (A1/2) of the annealing time and the natural logarithm value (ln(1/B)) of the reciprocal value of the moisture concentration.
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