| 摘要 |
PROBLEM TO BE SOLVED: To provide a molten Zn-Al-Mg-based alloy plated steel plate excellent in plating adhesion, by using as a plating original plate, a steel type to which molten metal embrittlement crack resistance is imparted by adding B.SOLUTION: There is provided a hot-dip galvanized steel plate excellent in plating adhesion, in which at least one or more kinds exist, between a Si independent oxide, a Mn independent oxide, a Cr independent oxide, a Si-Mn-based complex oxide, a Si-Cr-based complex oxide, a Mn-Cr-based complex oxide and a Si-Mn-Cr-based complex oxide, on the steel plate side within 10 μm from the interface between a steel plate which is a plating original plate and a hot-dip galvanized layer formed on its surface. |
