304Cu抗菌不锈钢盐酸基酸洗工艺的研究  

Research on hydrochloric acid-based pickling process of 304Cu antibacterial stainless steel

作　　者：王冬[1] 邹德宁[1] 韩英[2] 薛清连 WANG Dong ZOU Dening HAN Ying XUE Qinglian(School of Metallurgical Engineering, Xi＇an University of Architecture and Technology, Xi＇an 710055, China Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology, Changchun 130012, China)

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]先进结构材料教育部重点实验室(长春工业大学),长春130012

出　　处：《材料科学与工艺》2016年第5期78-84,共7页Materials Science and Technology

基　　金：陕西省自然科学基础研究计划面上项目(2015JM5197)

摘　　要：为了明确盐酸基酸洗液对含Cu抗菌不锈钢表面氧化层的酸洗行为,采用正交试验法研究以盐酸为基础,Fe^(3+)、H_2O_2和HNO_3为氧化剂的304Cu抗菌不锈钢酸洗工艺.并运用扫描电镜、透射电镜及电化学等手段分析经最佳配方酸洗后试样的表面形貌、成分及酸洗机理.结果表明:最佳酸洗工艺配方为HCl(36%~38%)120 ml/L、H_2O_2(30%)80 ml/L、FeCl_3·6H_2O 20g/L、HNO_310 ml/L,酸洗温度30℃,酸洗时间15 min.经该配方酸洗后材料表面平整度和光亮度较好,具有抗菌性能的点状ε-Cu相在基体上弥散分布.材料经酸洗去除氧化层后,仍具有足够含量的抗菌元素Cu存在.酸洗脱除氧化层过程由电荷传递过程控制,该酸洗液对不锈钢具有孔蚀诱导性,酸洗时间不宜过长.In order to clarify pickling process of hydrochloric acid lotion against Cu-contained surface oxide layer of antibacterial stainless steel,the pickling process of 304 Cu antibacterial stainless steel by using Fe（3＋）,H_2O_2 and HNO_3 as the oxidants and taking hydrochloric acid as basis was studied by orthogonal experiment.And the surface morphology,composition and pickling mechanism of samples were analyzed by scanning electron microscopy,transmission electron microscopy and electrochemical after the best recipe pickling. The results show that the best pickling recipe is HCl（ 36%～38%） 120 ml / L,H2O2（ 30%） 80 ml/L,FeCl3·6H2O 20 g / L,HNO3 10 ml / L,pickling temperature is 30 ℃ and pickling for 15 min. The flatness and brightness of material surface are better after pickling,and antimicrobial properties of dot ε-Cu phase is dispersed on the substrate. After pickling to remove oxide layer of material,it still has enough content of antibacterial element Cu. Pickling process of removing oxide layer is controlled by the charge transfer process,the pickling solution of stainless steel with pitting corrosion induced,and pickling time should not be too long.

关 键 词：304Cu抗菌不锈钢 盐酸基 正交试验 酸洗工艺 电化学 

分 类 号：TG142.71[一般工业技术—材料科学与工程]