磷化沉渣形成的原因分析及预防  

Analysis and Prevention of Phosphating Dregs Formation

作　　者：王恩生[1] 杨波[1] 陈鹏[1] 王宇[1] 

机构地区：[1]中化化工科学技术研究总院,北京100011

出　　处：《现代涂料与涂装》2013年第1期56-60,共5页Modern Paint & Finishing

摘　　要：详细分析了磷化沉渣形成的原因及危害,指出大量的磷化沉渣对磷化产生不利影响。磷化沉渣形成的主要原因是磷化液配比不合理、工作负荷偏大、工作温度偏高、促进剂偏高和Fe2+浓度偏高等。通过控制磷化液中的Fe2+的浓度可以有效减少沉渣的生成。严格按照工艺参数操作可以有效防止磷化沉渣的生成。The phosphating dregs forming reasons and harmfldness were analyzed in detail anti indicated that the vast of dregs had the adverse effeel on phosphating. The main cause induced phosphaling dregs formation is lhe mlreasunable ratio of phosphaling solution, large workload, and higher work temperature, high amounl of accelerator and higher enneentration of Fe2＋. The dregs amount can effectively reduce hy controlling lhe concentration of Fe2＋ in phosphating solution. In The generation of phosphating dregs can be effeclively prevent with strict control of the operation process parameters.

关 键 词：磷化液 脱脂剂 沉渣 酸度 表面处理 

分 类 号：TQ639[化学工程—精细化工]