| 摘要 |
1. Hot dip coating process for products of any shape made of killed, semi-killed or silicon steel in which the said products are dipped into an initial bath made up basically of zinc or a first zinc-aluminium alloy and then into a second bath comprising basically a second zinc-aluminium alloy, the aforementioned first and second baths being at different temperatures, and which is characterized by the fact that at least one of the baths of zinc-aluminium alloy has an aluminium content of between 3 % and 10 % and at least one of the elements Sb, Ce, Mg, La and Sn is added to it in an amount not exceeding 0.5 % by weight. |
