| 摘要 |
An alloy and a process for the galvanizing of steels containing silicon by an immersion galvanization process, the alloy comprising a zinc alloy of commercial purity having, by weight, aluminum in the amount of at least 0.003 % and one of vanadium in the amount of at least 0.06 %, preferably at least 0.08 %, titanium in the amount of at least 0.03 %, preferably at least 0.05 %, or vanadium with titanium in the amount of at least 0.02 % of each of vanadium and titanium and at least 0.04 %, preferably at least 0.06 %, of vanadium and titanium collectively. The process also includes a dilute zinc-ammonium chloride pre-flux composition containing about 15 - 20 % ZnNH4Cl. The process is suitable for galvanizing a wide range of steels including reactive steels containing up to about 0.3 % by weight silicon with the single element addition and up to at least 0.5 % by weight silicon when both elements are added together. |
