目的 研究冷轧钢板表面状态对在其表面制备锆化膜性能的影响。方法 以A、B、C三种不同品种的冷轧钢板为基材，在其表面制备锆化转化膜。使用扫描电子显微镜及电化学分析方法研究基材的表面状态。使用X射线荧光光谱测厚仪、辉光放电光谱仪及扫描电子显微电镜分析锆化转化膜的膜重、Zr元素随深度的分布状态及表面形貌，并分析锆化膜的电化学性能，结果 A、B、C三种基材的开路电位依次是?0.66、?0.61、?0.55 V，电荷传输电阻依次是647.9、798.8、1161 Ω?cm2，说明3种基材的表面活性依次减弱，表面导电能力减弱。A、B、C三种钢材表面制备的锆化膜膜重依次是87.28、65.39、31.48 mg/m2，电荷传输电阻依次是863.7、920.8、2724 Ω?cm2。结论 钢板表面活性会显著影响表面锆化膜的性能。钢板表面活性越大，其在锆化液中的活性也越大，锆化反应越剧烈，其表面沉积的锆化膜膜重越大，耐蚀性越弱。钢板表面沉积锆化膜后，耐蚀性增强。

The work aims to study the effects of surface state of cold-rolled steel plate on properties of zirconium film prepared on its surface. Three kinds of cold-rolled steel sheet were used as substrates to prepare zirconium conversion films on the sheet surfaces. The surface state of substrate was studied with scanning electron microscope and in the method of electrochemical analysis. Film weight, depth distribution of Zr element, surface morphology of the zirconium conversion film was analyzed with X ray fluorescence spectrometer, glow discharge spectrometer and scanning electron microscope, respectively. Electrochemical performance of the zirconium film was analyzed. Open circuit potential of A, B and C substrate was ?0.66, ?0.61 and ?0.55 V, respectively. Charge transfer resistance was 647.9, 798.8 and 1161 Ω?cm2, respectively. Surface activity of the three substrates decreased in turn and the surface conductivity weakened. Weight of zirconium films on the surface of A, B and C was 87.28, 65.39 and 31.48 mg/m2 in turn, and the charge transfer resistance is 863.7, 920.8, 2724 Ω?cm2, respectively. Surface activity of steel plate can significantly affect properties of the zirconium conversion film. The higher the surface activity of the steel plate is, the greater the activity in the zirconification fluid is; the more violent the zirconification reaction is, and the greater the deposited zirconium film is, the weaker the corrosion resistance is. Corrosion resistance of the steel plates is enhanced after zirconium film is deposited.