Cathodic protection is one 內坐of the most effec紙到tive methods to p草子revent electrochemical corrosion of 愛草metals. It is through the protection of不在 the metal to apply a certain動來 cathodic current, so th在日at it produces catho看就dic polarization, when the potenti不亮al of the metal is negative to a ce地去rtain potential valu如妹e, the anodic dissolution proc算路ess of corrosion will be eff鄉購ectively inhibited. According to the 知件different ways of 靜朋providing cathodic c讀費urrent, cathodic protection用務 is divided into two kinds of s日話acrificial anode m我動ethod and applied curren說月t method. Sacrificial a鐵站node method is a more negativ匠老e potential metal or allo事金y and the protection of meta這近l structures electrically connected那資, through the continuous consumpt月報ion of electro-nega冷影tive metal or alloy dissolution, 說購to provide protecti離愛on current to the protected materia南照l, so that the metal structures 厭得are protected. The external curr路光ent method is to convert the 路白external alternating current into lo關南w-voltage direct cu場著rrent, through the auxiliary 飛答anode to protect the furnace cu上雪rrent to the protected metal structu些和re, so that corrosion is inhibited, the了兵 system through the re熱月ference electrode to measure 可弟the potential and the control多大 signal back-explosion to the con業唱stant potential meter煙慢. To adjust the outgoing current, so th數飛at the metal structure in a go了師od state of protection.

In general, the cost of catho國月dic protection acc雨刀ounts for only 1%-3% of the cost of不也 the protected metal structure, 不高while the service life一到 of the structure can厭可 be extended exponentially or銀也 even dozens of times. Because cath間兵odic protection has the a物就dvantages of simple equipment, conve懂窗nient construction, and愛藍 long protection time. In rec房睡ent years, it has been deve內購loped and widely used, and is an坐唱 applicable technology with lo區白w investment, good effect 電森and more obvious 在匠economic benefi自我ts.

The company has been engaged in t遠影he research and application of ca電微thodic protection technology for many 有下years, and has integrate兵小d the research and development, 司理design, production, construction 家短and engineering contract of cathodic 用小protection technolog問吧y and products. The company has undert時物aken nearly 1,000 cathodic protect工微ion projects in the fi吧視elds of ships, 照務port facilities, buried 好大pipelines and networks, p著短etrochemical industry, e制子lectric power, marine訊月 engineering, etc.

○ Application areas

Ships, port facilities, offshore, burie信議d pipelines and ne生慢tworks, storage tanks, power plants醫公, oil refineries and chemic鐘謝al plants, reinforced c廠長oncrete structures and pile foundations都會 of buildings.

○ Service scope

Design and construction船吃 of various cathodic prote這市ction projects, various cathodic pr線兵otection products, technical tra相要ining, technical gui票聽dance and technica懂現l services

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