酸液中的缓蚀剂和杂质离子对带钢酸洗效果的影响  

The influence of corrosion inhibitors and impurity ions in acid solution on the pickling effect of strip steel

作　　者：陈光[1] 郑涛[2] 茅玮辰 CHEN Guang;ZHENG Tao;MAO Weichen(Products&Technique Management Department,Baoshan Iron&Steel Co.,Ltd.,Shanghai 201999,China;Cold Rolling Plant,Baoshan Iron&Steel Co.,Ltd.,Shanghai 201999,China;Research Institute,Baoshan Iron&Steel Co.,Ltd.,Shanghai 201999,China)

机构地区：[1]宝山钢铁股份有限公司制造管理部,上海201999 [2]宝山钢铁股份有限公司冷轧厂,上海201999 [3]宝山钢铁股份有限公司中央研究院,上海201999

出　　处：《宝钢技术》2024年第3期1-6,共6页Baosteel Technology

摘　　要：通过对比热轧带钢在不同成分酸液中的铁损速率,以及不同钢种在不同质量分数缓蚀剂的酸液中的铁损速率,明确了酸液中的缓蚀剂和杂质离子Cu^(2+)对热轧带钢酸洗效果的影响。指出影响热轧带钢在酸液中铁损速率的因素包括钢种成分、缓蚀剂质量分数及酸液成分等。热轧带钢经不同酸液酸洗后的表面色泽和微观形貌存在差异。酸液中的杂质离子Cu^(2+)会显著影响酸洗效果,缓蚀剂与Cu^(2+)对抑制带钢铁损速率有叠加作用。在对废酸的处理过程中,必须管控杂质离子Cu^(2+)的质量浓度,以获得良好的酸洗效果。By comparing the pickled iron loss rates of hot-rolled strip steel in acid solutions with different compositions,as well as the pickled iron loss rates of different steel grades in acid solutions with different mass fractions of corrosion inhibitors,the influence of corrosion inhibitors and impurity ions Cu^(2+)in acid solutions on the pickling effect of hot-rolled strip steel is clarified.The factors that affect the pickled iron loss rate of hot-rolled strip steel in acid solution include steel composition,the mass fraction of the corrosion inhibitor,and acid solution composition.There are differences in surface color and microstructure of hot-rolled strip steel after being pickled when subjected to diverse acid solutions.The impurity ions Cu^(2+)in the acid solution can significantly affect the pickling effect.The corrosion inhibitor and Cu^(2+)have a synergistic effect on inhibiting the pickled steel loss rate.Therefore,during waste acid recycling processes,it is necessary to control the concentration of impurity ions Cu^(2+)to ensure optimal pickling performance.

关 键 词：酸洗 缓蚀剂 杂质离子 

分 类 号：TG172.42[金属学及工艺—金属表面处理]