FLUX AND PROCESS FOR HOT DIP GALVANIZATION

摘要

A flux for hot dip galvanization comprises from:.bullet. 60 to 80 wt.% of zinc chloride (ZnCl2); 7 to 20 wt.% of ammonium chloride (NH4Cl); 2 to 20 wt.% of a fluidity modifying agent comprising at least one alkali or alkaline earth metal; 0.1 to 5 wt.% of a least one of the following compounds: NiCl2, CoCl2, MnCl2; and 0.1 to 1.5 wt.% of at least one of the following compounds: PbCl2, SnCl2, BiCl3, SbCl3.