Cathodic protection is one費秒 of the most effe老微ctive methods to prevent electrochemica小爸l corrosion of metals. It is through 音見the protection of線些 the metal to apply a certain cathodi水章c current, so tha麗錯t it produces cathodic polarizatio民跳n, when the potential of the met土農al is negative to a cert公這ain potential value, the anodic dis日吧solution process of corros還藍ion will be effectively inh可慢ibited. According to the different ways頻銀 of providing catho土中dic current, cath外村odic protection is divided into two 唱雨kinds of sacrificial anode meth裡輛od and applied current method. Sacrific會討ial anode method is 熱司a more negative potential metal or 了請alloy and the protection of metal stru長花ctures electrically connected, t劇農hrough the continuous consump山花tion of electro-negative met醫音al or alloy dissolution, to provid藍物e protection current 老做to the protected material, s嗎多o that the metal structures are protec煙對ted. The external current呢照 method is to convert 鐵小the external alterna學動ting current into low-voltage di物線rect current, through 區近the auxiliary anode to pro外林tect the furnace current音頻 to the protected metal s謝雨tructure, so tha不房t corrosion is inhibit玩知ed, the system through the re北大ference electrode to measure the pote問厭ntial and the control si體有gnal back-explosion to the 司兵constant potential me雨師ter. To adjust 車學the outgoing current, s站微o that the metal stru離鐘cture in a good state of做跳 protection.

In general, the cost水什 of cathodic protection accounts for 刀風only 1%-3% of the文他 cost of the protected me學男tal structure, w北拍hile the service life of the structu費內re can be extended月黑 exponentially o子姐r even dozens of times. Because cathod笑個ic protection has the 森低advantages of simple equipm問東ent, convenient construct站公ion, and long prot人章ection time. In recent yea愛友rs, it has been developed and wi明愛dely used, and is an applicable tech作跳nology with low investment, good ef花下fect and more obvious economic benefit讀鄉s.

The company has bee她紅n engaged in the research and applicat話子ion of cathodic protection technol東錢ogy for many years, and has integrated村就 the research and development,但間 design, production, construction如日 and engineering contract of cat月開hodic protection techno秒姐logy and products謝那. The company has undertake技街n nearly 1,000 cathodic prote日金ction projects in th刀能e fields of ships, port f農時acilities, buried pipeline現問s and networks, petroc林雜hemical industry, el什上ectric power, mari暗飛ne engineering, etc.

○ Application area銀快s

Ships, port facilities, offshore, 站電buried pipelines and networ妹跳ks, storage tanks, 公商power plants, oil refinerie白請s and chemical 小他plants, reinforced concrete structures志舞 and pile foundations of buildings.

○ Service scope

Design and const不理ruction of various cathodic protecti分有on projects, various ca機讀thodic protectio問美n products, technical trainin照技g, technical guidance a老讀nd technical services

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