The principle of Marine anti-corrosion zinc block is based on the principle of galvanic battery, through the cathode protection of sacrificial anode to prevent hull corrosion.
The working principle of Marine anticorrosive zinc block involves the galvanic effect of iron and zinc formed in seawater. because the electrode potential of zinc is negative than that of iron, means that zinc is more active than iron. therefore, when zinc and iron exist in sea water at the same time, zinc will act as the anode, and will lose electrons and be oxidized. whereas iron acts as the cathode, attracts electrons, usually by oxygen absorption, which inhibits or slows down the corrosion process of iron. This method is called cathode protection with sacrificial anode. In this way, the zinc block corrodes in seawater preferentially over the hull, thus protecting the hull from corrosion.
In addition, is another method by giving a certain amount of current to the Tietong, to make it reach a dull potential, to reduce the corrosion. However, this method requires a continuous power supply, if the current is not properly controlled, may accelerate corrosion. by contrast, cathodic protection method with sacrificial anode is more commonly used, because it does not require continuous power supply, is easier to operate, and can effectively protect the hull from corrosion
Features: High purity, bright color, dense organization, no slag inclusion, no cavity, with good electrical conductivity, corrosion resistance, uniform dissolution, long service life and so on. Zinc block use: Mainly used in ships, steel piles, floating docks, trestles, ballast tanks, underwater pipelines, sluice gates, underwater wire ropes, offshore platforms, port and offshore engineering facilities, underground cables, underground oil and gas pipelines, oil well casing, oil tank inner and outer walls, bridge foundations, reaction tanks, concrete foundations, heat exchangers, rehydrating gas, box coolers, water pipe inner walls, pumps, compressors, chemical towers, containers, etc. Save and wait.
