HIGH CORROSION RESISTANCE COMPOSITE PLATED STEEL STRIP AND METHOD FOR MAKING

摘要

The dually plated steel plate has good resistance against corrosion before or after being painted. In the electrically Zn plated zone there is Co in an amount in a range of 0.1-10 wt.% chromium in a range of 0.05-5 wt.% and Al and Si each in a range of 0.05-5 wt.%, all eutectically deposited. In this plate, good resistance against corrosion can be obtained not only from the plated zone itself but also from the plate after having been painted. In addition any paint as well as the plating applied can favourably adhere to the plate. The plate also has good workability.