摘要
为了改善锌–钙系黑色磷化膜的外观和性能,配制了锌–钙系中温黑磷化液,研究了配位剂、总酸度、磷化时间对黑磷化膜厚度、金相形貌和耐蚀性的影响,采用X射线荧光光谱法(XRF)分析了磷化膜的成分。结果表明,采用柠檬酸三钠作配位剂,控制总酸度为50～100,磷化时间15～20min,能够获得防护性能良好的黑色磷化膜。
A formulation for black Zn Ca phosphating at medium temperature was developed to obtain phosphating films with good appearance and properties. The effect of complexing agent, total acidity and treatment time on thickness, morphology and corrosion resistance of phosphating film was studied. The composition of the phosphating film was analyzed by X-ray fluorescence （XRF）. The results showed that black phosphating films with excellent protective property can be obtained with sodium citrate as complexing agent at total acidity 50-100 after treatment for 15-20 min.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2009年第7期42-44,共3页
Electroplating & Finishing
关键词
钢铁
黑磷化
锌钙系
中温
配位剂
耐蚀性
iron and steel
black phosphating
zinc-calcium system
medium temperature
complexing agent
corrosion resistance
