magnesium anode

magnesium anode

[mag′nē·zē·əm ′an‚ōd]
(electricity)
Bar of magnesium buried in the earth, connected to an underground cable to prevent cable corrosion due to electrolysis.
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The rivet-metal galvanic interaction (PC-Mg) that displayed the lowest current density also experienced the lowest visible corrosion damage to the magnesium anode.
If you replaced the magnesium anode rod with a similar one, the problem has recurred.
A current through the earth can be easily produced by galvanic action from the energy of corrosion of a magnesium anode.
A magnesium anode rod protects your tank better but doesn't last as long as an aluminum/zinc rod.
Therefore, contact of magnesium with any other metal in the presence of an electrolyte can lead to attack of the magnesium, the severity depending on the ratio of the areas of the magnesium anode and the dissimilar cathode (a low ratio means worse corrosion).
The magnesium anode system was diligently monitored and depleted anodes were diligently replaced.
One option is to install a sacrificial magnesium anode to the lift system.
Six-Year Warranty: The XR90 includes a patented magnesium anode rod with a special resistor to protect the tank from rust.
This is done by installing a replacement magnesium anode and connecting it to the gas line.
high potential magnesium anode, restoration of site to equal or better condition.
The PowerMag 1000 system, which is simple to install and easy to use, enables full control over low maintenance sacrificial magnesium anode systems with no "over voltage" issues.
Limited Tenders are invited for Magnesium Anode For Cathodic Protection