摘要
固体酸是一种主要由酸式盐组成的干燥粉末,用于金属表面电镀前的浸蚀与活化。给出了3种固体酸的配方:(1)硫酸氢钠90%(质量分数,下同),氟化钠10%;(2)硫酸氢钠70%,氟化氢钾15%,草酸15%,表面活性剂少量;(3)硫酸氢钠250kg,氟化钠24kg,BX渗透剂0.2kg,氯化钠25.8kg。介绍了固体酸在活化、阴极电解清洗及酸洗中应用的工艺条件。
Solid acid is a dry powder mainly consisting of acid salt and commonly used for etching and activation of the metals to be plated. Three formulations of solid acids were provided: (1) NaHSO4 90wt% and NaF 10wt%; (2) NaHSO4 70wt% , KHF2 15wt%, H2C2O4 15wt%, and a small amount of surfactant; and (3) NaHSO4 250 kg, NaF 24 kg, penetrating agent BX 0.2 kg, and NaCl 25.8 kg. The process conditions for application of the solid acids in activation, cathodic electro-cleaning, and pickling were introduced.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2012年第11期20-21,共2页
Electroplating & Finishing
关键词
酸式盐
金属
活化
电解清洗
酸洗
acid salt
metal
activation
electrolytic cleaning
pickling