一种低温锌系磷化促进剂的动力学研究  

Study on Dynamics on a Kind of Low-temperature Bonderizing Accelerator

作　　者：张圣麟[1] 李红玲[2] 娄淑芳[3] 孔小波[4] 

机构地区：[1]中国矿业大学机电与信息工程学院,北京100083 [2]新乡师范高等专科学校化学系,河南新乡453000 [3]商丘医学高等专科学校基础部,河南商丘476000 [4]河南师范大学化学与环境科学学院,河南新乡453007

出　　处：《表面技术》2006年第6期40-42,81,共4页Surface Technology

基　　金：河南省科技攻关研究项目(0424240074);河南省自然科学研究项目(200460178)

摘　　要：简述了锌系磷化膜的形成机理，针对锌系中温磷化技术的缺点，采用测量Ф-t曲线的方法研究磷化液中促进剂对磷化膜生长速率的影响，应用XRD对膜的形貌及晶体结构进行了表征，研制出一种低温锌系磷化加速剂：试验结果表明：将甲醛与氯酸盐进行混合而制成的复合促进剂，可以缩短成膜时间，降低磷化温度，加快磷化成膜速度；在磷化温度为30～40℃、磷化时间为10min的条件下，可以获得性能良好的磷化膜。The phosphating mechanism of zinc-series phosphating film is described briefly, the influence of accelerator on phosphating film growth velocity has been studied by means of measuring Ф-t curves and the morphology and crystalline structure have been characterized by XRD, a low-temperature accelerator is developed aiming at solving the problems in the zinc-series medium-temperature phosphating bonderizing technology. Experimental results show that this accelerator made mixing of formaldehyde and chlorate can shorten the time of forming coating, debase the temperature of phosphating and quicken phosphate coating growth velocity. A kind of good phosphating film can be obtained under treatment temperature 30 -40℃ and treatment time 10min.

关 键 词：磷化膜 促进剂 低温磷化 磷化速率 动力学 

分 类 号：TG174.445[金属学及工艺—金属表面处理]