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Through sampling from different depth and different zones in the zinc bath,the size distribution of dross particles built during galvannealed(GA)production is analyzed and compared with that during galvanized(GI) production.The relationship between the dross formation during transitions from GA to GI and the effective Al of the melt is discussed.Finally,the characteristics of dross particles in GA coating and its effects on GA punching and painting performances are studied.
Through sampling from different depth and different zones in the zinc bath, the size distribution of dross particles built during galvannealed (GA) production is analyzed and compared with that during galvanized (GI) production.The relationship between the dross formation during transitions from GA to GI and the effective Al of the melt is discussed. Finally, the characteristics of dross particles in GA coating and its effects on GA punching and painting performances are studied.