The steel and iron (Zn) the phosphate surface treatment technical
Abstract
Consults literature understanding phosphorization craft each kind of type before this experiment the good and bad points,but the zinc is the performance is fine is the main direction which at present studies,therefore proposed the zinc is the parkerising takes this research direction.The experiment determined the bonderizing craft each kind of condition,the temperature is 30--500C,the PH value is about 2.8,promoter for nitrous acid coin 0g/L,chemical additive for sodium fluoride 1.0---1.5g/L.Again determines the low temperature phosphorization formula through the orthogonal experiment:The zinc oxide is 8.00g/L,the phosphoric acid is 0.07mol/L,the nitric acid is 0.06mol/L,the nickelous nitrate is the 1.00g/L
Keyword:Phosphorization,cupric sulfate intravenous drip,orthogonal experiment