| 简介 |
A hot-dipped Zn—Al—Si—Mg—Re steel plate belongs to the technical field of base plate for color coating steel plate, which is characterized in that the composition of the plating layer material on the surface of the hot-dipped Zn—Al—Si—Mg—Re steel plate comprises (by weight) Al 40-45%, Si 1.2-1.4%, Mg 0.5-2.5%, La—Ce mixed Re 0.02-0.10%, and the rest is Zn. The invention has the advantages : (1) minimum plating layer weight per unit area is below 40 g/m2, which can save both cost and resource; (2) salt spray test result for incision is 660-680 h under the condition of minimum plating layer weight per unit area (below 40 g/m2), which shows that corrosion resistance is further improved. |
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