Zinc sacrificial anode for soil resistivity less than 20 ohm m soil
environment or sea water environment. The electrode potential was
-1.10 VCSE and the driving voltage was 0.25 V. When the temperature
is higher than 49 ℃, the intergranular corrosion occurs. When the
temperature is higher than 54 ℃, the electrode potential of zinc
anode becomes positive, which reverses the polarity of the steel,
and the cathode becomes protected and the steel becomes an anode.
Therefore, zinc anode is generally used for the temperature below
49environment. Zinc anodes must use backfill. Chemical Properties: Main performance Very high electrochemical performance, the unit weight of anode
material power generation, about 3 times the zinc anode, magnesium
anode 2 times. In seawater and chloride ions in other media, the
performance is good, issued by the current self-regulating ability. Scope of application Zinc alloy sacrificial anode is suitable for the temperature below
50and the resistivity of less than 15 m of seawater, sea water,
soil and other electrolytes in the cathodic protection of metal
components used in sacrificial anode, including ships, port
facilities, marine engineering, buried To metal pipes, storage
tanks, sea water cooling system with cathodic protection of the
sacrificial anode. Density g/cm3 | 7.14 | | Open circuit potential V | -1 | Relatively CSE | Current Efficiency % | 65 | | Capacitance Ah/kg | 780 | In the sea water 3mA / cm3 conditions | Consumption rate kg/(AYr) | 11.88 | | Current Efficiency % | ≥65 | | Capacitance Ah/kg | 530 | In the soil 3mA / cm3 conditions | Consumption rate kg/(AYr) | ≤17.25 | |
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