| 摘要 |
A perfectly ductile hard steel wire having superposed coatings resisting corrosion. The wire is coated with a first inner layer A1 (Al-Fe-Zn) and a second outer layer A2 (Zn-Al-Fe) and the first inner coating layer has the following composition: - Al between 15% and 45% - Fe between 5% and 25% -Al Zn forming the balance with elements of addition - in a small amount, such as Mg, Sn, Ni, Cu, Cr, - Mischmetal, etc. . . the total amount of which - does not exceed 0.5%. - This wire has a resistance to corrosion very much higher than that of conventional galvanized wires and that of similar Zn-Al coatings which had been deposited in a single stage.
|
