sacrificial anode


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sacrificial anode

n.
An anode attached to a metal object, such as a boat or underground tank, to inhibit the object's corrosion. The anode is electrolytically decomposed while the object remains free of damage.

sacrificial anode

n
(Metallurgy) metallurgy an electropositive metal, such as zinc, that protects a more important electronegative part by corroding when attacked by electrolytic action
Translations
Opferanode
희생약극
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References in periodicals archive ?
The single most neglected component of your home's water heater is its sacrificial anode.
Two primary causes of tank rust or corrosion are failing to replace the sacrificial anode and allowing scale to build up.
Galvanising protects in two ways; it forms a coating of corrosion-resistant zinc which prevents corrosive substances from reaching the more delicate part of the metal and the zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
Corrosioncaused by the oxidation of the functional water can be protectedby the sacrificial anode which is made of a metal that is moreeasily oxidized than the dental metals.
Luckily I and smelt She said: "A sacrificial anode is a piece of metal which is put on the side of a boat, usually a big boat, and it gathers all the corrosion and the rust to it, so that the boat survives it, so that the boat survives it was for longer.
Among the topics are synthesizing zinc oxide nanoparticles by solid state reactions and its influence on a zinc electrode, the effect of isothermal treatment on the microstructure and properties of high performance steel, simulation and casting processes for ductile iron wind generator rotor shaft, effects of additives on semiconduction transformation in lead zirconate titanate ceramic induced by atomic hydrogen, tungsten cathodes doped with rare earth for pulsed xenon lamps, and the shielding effect in the sacrificial anode cathodic protection system.
One company's solution to this problem involves condenser coils suspended such that the vibrations of normal operation shake any collected scale loose, wide spray nozzles to prevent blockage by scale, and sacrificial anode rods to prevent coil corrosion.
The timing belt is made of special durable materials, and sacrificial anode metal in the coolant pathway helps prevent corrosion.
All water heater manufacturers have recommendations that must be followed: check proper operation, drain off' sediment and periodically replace the sacrificial anode rod.
Working for EnCana, Shaw & Shaw will provide concrete weight coating, sacrificial anode installation and associated logistics for this 175km, 22" diameter pipeline.
It came up with a new take on an anticorrosion device called a sacrificial anode, which it makes and sells largely to recreational boaters.
If a tank has magnesium sacrificial anodes and those anodes have decomposed, only then would the tank become the sacrificial anode and corrode before the copper penny.