ANODI ANODES - Intro: Tecnoseal srl
ANODI ANODES - Intro: Tecnoseal srl
ANODI ANODES - Intro: Tecnoseal srl
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4<br />
The most effective method to control<br />
undesirable effects of metal corrosion is Cathodic<br />
protection. This technique, used worldwide since the<br />
1930’s was originally introduced in the early nineteenth century<br />
to meet the needs of the British Navy and also used, with excellent<br />
results, for the protection of underground structures.<br />
When it comes to Cathodic protection, especially in the leisure<br />
<br />
<br />
<br />
<br />
metallic structures that are subject to wet corrosion. This is achieved<br />
by lowering the natural electrochemical potential of the metal to be<br />
<br />
<br />
<br />
<br />
The technique of cathodic protection La tecnica della protezione<br />
was invented in England in 1824 and catodica viene inventata in In-<br />
ghilterra nel 1824 e segnò il<br />
with wooden hull to metal ones, oth- <br />
erwise unthinkable, but only from the con scafo in legno a quelle<br />
60 in metallo, altrimenti impensabile,<br />
ma soltanto a<br />
partire dagli anni ‘60 trova<br />
applicazione sistematica<br />
nel campo nautico a livello<br />
mondiale.<br />
s it was applied systematically in<br />
<br />
ABOUT<br />
CATHODIC<br />
PROTECTION<br />
ode<br />
is made of an alloy which has<br />
an electrochemical potential less<br />
than most metals used on a boat,<br />
which enables an electrochemical<br />
process to take place. A current will<br />
<br />
<br />
to equalise the potential difference, resulting in the loss of electrons<br />
by the anode and its accelerated dissolution in water. Consequently,<br />
the metal structure in contact with the anode, has a greater reserve of<br />
electrons that are also utilised to power the electrochemical process<br />
which otherwise would have contributed to the corrosion of its sur-<br />
<br />
<br />
relative position. To achieve this type of protection it is essential to<br />
<br />
the anode and cathode. This is only possible by connecting the metal<br />
material to be protected, with a metal of lower nobility; as a conseelectrochemical<br />
corrosion.<br />
<br />
<br />
on a metal structure, is to bring the electrochemical potential of the<br />
passive cathodic protection system. The objective is to protect any metal to be protected to a certain value (the so called protection<br />
metal structures immersed in water, from corrosion. The principle of
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