It has long been history regarded Zinc as corrosion-proof metal, and the well-known thought to use this method to prevent corrosion from vessel's shell, boiler, outside of internal combustion engine. On recent 2 decades, we carry out many further studies on such material and setting. During this period, American based on their own advanced technology, they start to improving the material and size. Otherwise, China continuously made achievements from the study of using Zinc as convection-current anode. After we add trace Cadmium and Aluminum in, their corrosion-proof efficiency will be better. Above all these studies are based on high-purity Zinc materials. Now, the popular method over the world to use ZAC, CPZ is the best way regarded Zinc as corrosion-proof anode.

 

Application Area
Ship, Vessel
Ocean project
Dock and harbor installation
Landing installation used in ocean
Submerged pipelines
Oil storage tanks
Electric Power station, Oil Refining Company and Chemical Factory

 

Chemical Composition and Electrochemical Composition:

ZAC Sacrificial Anode Chemical Composition

Type Chemical Composition  (％) Zn AL CD Fe Cu Pb Si ZAC (％) 0.3～0.6 0.05～0.12 ≤0.005 ≤0.005 ≤0.006 ≤0.125 Allowance

ZAC Sacrificial Anode Electrochemical Composition

Item Open Potential (V) Operating Potential (V) Actual Capacitance (A.h/kg) Current Effciency (%) Dissolved Status Electrochemical Composition -1.09～-1.05 -1.05～-1.00 ≥780 ≥95 Corrosion product flakes off easily; shows the uniform dissolution

Note: the media is artificial seawater, the reference electrode is calomel.