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神户钢厂的工程师们,已研制出一种Zn—Ni/Zn—Fe双层电镀钢板。含Ni量为10～15％的底层,有良好的抗腐蚀性;Zn—Fe表面层提供良好的亲漆性及涂漆后的耐蚀性。镀层最佳含Fe量是80～90％。双层电镀材料的加工性是很好的。牵拉珠磨耗模拟试验(abrasive draw bead simulation test)结果表明,双层镀层对钢基体的附着性是相当好的,可与镀锌及镀锌层扩散处理钢板的情况相比拟。经塑性加工后涂漆试样的抗蚀性,比不同程度变形的镀
Engineers at Kobe Steel have developed a Zn-Ni / Zn-Fe double-coated steel plate. The base layer containing 10 to 15% of Ni has good corrosion resistance; the Zn-Fe surface layer provides good pro-paint and corrosion resistance after painting. The optimum Fe content of the coating is 80-90%. The processability of double plating is good. The results of the abrasive draw bead simulation test show that the adhesion of the two-layer coating to the steel substrate is quite good and can be compared with the case of the galvanized and zinc-coated diffusion-treated steel sheet. After plastic processing, the corrosion resistance of the painted samples is different from the deformation of the plating