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The strip steel surface condition after continuous annealing of strip is extremely important to the quality of\udgalvannealed coating (GA). The presence of oxides or precipitated can affect the reactions at the coating/substrate\udinterface and decrease the zinc wettability on the steel surface, leading to various defects in the final product. To avoid\udoxidation of the material during continuous annealing, a protective atmosphere is used in the furnaces. Despite this\udatmosphere, it is possible the selective oxidation or precipitation of second phase particles, being the dew point of\udatmosphere one of the leading factors to reduce this occurrence. This study aims to evaluate the effect of the dew point\udon the quality of GA coatings applied to a bake hardenable steel. The continuous annealing under dew points of –60°C,\ud30°C and 0°C, as well as hot dip galvanizing, were performed in a Hot Dip Process Simulator. It is found that the dew\udpoint has a decisive influence on the amount, distribution and type of oxides formed, and the condition of –30°C provided\udthe coating with less failures and better adhesion

EFEITO DO PONTO DE ORVALHO DA ATMOSFERA DOS FORNOS DE RECOZIMENTO DA CGL NA QUALIDADE DO REVESTIMENTO GA EM AÇO BAKE HARDENABLE