常温快速除氧化皮酸洗工艺  

Acid Pickling Process for Rapid Removal of Iron Scale at Room Temperature

作　　者：王丰万[1] 周永璋[1] 

机构地区：[1]南京工业大学材料学院腐蚀与防护教研室,江苏南京210009

出　　处：《材料保护》2004年第4期18-19,共2页Materials Protection

摘　　要：常温酸洗具有能耗小、对钢铁基体腐蚀性小和酸雾少等优点,但除氧化皮的速度较慢。通过改变常温快速除氧化皮酸洗工艺基础配方中的各组分参数,观察酸洗速度和腐蚀失重的变化,可找出各组分的最佳用量,且优化出该基础配方条件下的最佳配方。结果表明,除乌洛托品外,十二烷基硫酸钠、草酸、OP-10、添加剂、磷酸均有利于酸洗速度的增加,且优化出的最佳配方的氧化皮清除速度约是盐酸酸洗的3倍。Normal temperature acid pickling has many advantages such as energy saving, low corrosion to steel substrate and less acid fog, but scaling rate is lower. The effects of different process parameters in normal temperature rapid acid pickling on scaling rate and corrosion weight loss were investigated to find out the optimal formula and conditions. Results demonstrate that sodium dodecyl sulfate, oxalic acid, OP-10, additive, and phosphoric acid except urotropine are beneficial to the increase of scaling rate. The scaling rate based the optimal formula is about three times as high as that of hydrochloric acid pickling.

关 键 词：酸洗 钢铁 氧化皮 

分 类 号：TG174[金属学及工艺—金属表面处理]