Cathodic protection is one of the most愛她 effective methods 綠月to prevent electrochemical自書 corrosion of metals. It is thro友器ugh the protection of 頻討the metal to appl鄉很y a certain cathodic current, so 多國that it produces cathodic polarizat火海ion, when the potential of th腦畫e metal is negat行離ive to a certain potential value, the a上資nodic dissolution process of co線湖rrosion will be effectively i影但nhibited. According to the拍器 different ways of providing cathodi時村c current, cathodic pro妹都tection is divided into two kinds of 煙呢sacrificial anode 從長method and applied current m又她ethod. Sacrificial anode met開照hod is a more negative p如讀otential metal or alloy and the pr好紅otection of metal structu靜習res electrically connected, t那遠hrough the continuous consumption o跳身f electro-negative meta不數l or alloy dissolution, to provide 下草protection current to the protected 也自material, so that兒你 the metal structures are protected. T議用he external current metho知那d is to convert the external alterna章紙ting current into low-voltage雨可 direct current, th城得rough the auxiliary anode to p說匠rotect the furnace curre司劇nt to the protected metal struct小一ure, so that corrosion is inhibited, th湖日e system through 們為the reference electrode to measure 間村the potential and the女民 control signal b訊朋ack-explosion to the constant吧習 potential meter. To ad黑電just the outgoing current, so th就通at the metal str務房ucture in a good state 話民of protection.

In general, the cost 船報of cathodic protection acc水遠ounts for only 1%-3% of the cost 路歌of the protected metal structure, 請會while the service life of the structur南什e can be extended exponenti訊線ally or even dozens of times. Beca數日use cathodic protection你玩 has the advantages o月音f simple equipm通器ent, convenient constructi兵人on, and long protection t新離ime. In recent yea化銀rs, it has been developed a問間nd widely used, and is an ap兵票plicable techno會高logy with low investment, good e很匠ffect and more obv大新ious economic benefits.

The company has been engaged in the re你畫search and applicat舞不ion of cathodic protection techn外視ology for many years, 農聽and has integrated the rese他服arch and development, de朋員sign, production, cons雜河truction and engineering contract o拿兒f cathodic protectio上水n technology and produc林購ts. The company has und這物ertaken nearly 1,000 cathodic protectio文用n projects in the fields 妹的of ships, port facilities, b路如uried pipelines and間白 networks, petrochemical industry些男, electric power, marine engineering,事現 etc.

○ Application areas

Ships, port facil機銀ities, offshore, buried pipelines and n的場etworks, storage tanks, power plants就時, oil refineries and chemical pl冷兵ants, reinforced concrete著民 structures and 機唱pile foundations of buildings.

○ Service scope

Design and construction of variou慢樹s cathodic protection projects兒讀, various cathodic protecti小短on products, technical tra校輛ining, technical guid票醫ance and technical ser醫也vices

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