Titanium and titanium bar plating

Titanium and Xinnuo titanium grade 7 alloys of different categories , the component is not the same , it is not a uniform solution . Usually the first mixed with concentrated acid (HF: HNO3 = 1:3) etching until the red smoke coming after with the additions of sodium titanium mesh (Na2Cr2O7.2H2O) 250g / L of 4.8% HF, at 80 ~ 100 ℃ under soak 20min. Treated nickel -plated or nickel plated backing and then the other metals. For strongly acidic bath , such as acid or chromic acid solution of copper titanium plate chrome , nickel and sometimes you can not bottoming , and direct plating.