碱洗除油对热镀锌钢涂装后耐蚀性的影响  

Effect of alkaline degreasing on corrosion resistance of hot-dip zinc-coated steel after electrocoating

作　　者：黎敏 林兴明 孙鹏 董妮妮[3] 刘新华[3] 刘武华[3] 潘明 邵蓉 刘永壮 LI Min;LIN Xingming;SUN Peng;DONG Nini;LIU Xinhua;LIU Wuhua;PAN Ming;SHAO Rong;LIU Yongzhuang(Research Institute of Technology of Shougang Group Co.,Ltd.,Beijing 100041,China;Marketing Center,Beijing Shougang Shares Co.,Ltd.,Beijing 100041,China;Shougang Jingtang United Iron&Steel Company,Tangshan 063200,China)

机构地区：[1]首钢集团有限公司技术研究院,北京100041 [2]北京首钢股份有限公司营销中心,北京100041 [3]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《电镀与涂饰》2023年第12期33-39,共7页Electroplating & Finishing

摘　　要：对比研究了有机溶剂除油和碱洗除油镀锌板的表面微观结构和成分,磷化膜性能,以及电泳漆膜耐蚀性。结果表明,采用碱洗除油时,镀锌板电泳涂装后的抗石击腐蚀性能明显优于采用有机溶剂除油时。The microstructures and compositions of the surfaces of hot-dip zinc-coated steel sheets after being degreased with organic solvent and alkaline solution respectively were compared.The properties of phosphating films and the corrosion resistance of electrocoating films formed on the hot-dip zinc-coated steel sheets degreased by different methods were also tested.The results showed that the electrocoating film on the surface of hot-dip zinc-coated steel sheet degreased with alkaline solution had better resistance to stone-chip impact and corrosion than that degreased with organic solvent.

关 键 词：镀锌板 除油 磷化 电泳 耐蚀性 抗石击 

分 类 号：TQ153.15[化学工程—电化学工业] TG174[金属学及工艺—金属表面处理]