Cathodic protecti和內on is one of the most eff了費ective methods to麗理 prevent electrochemical corrosion of m中現etals. It is through男雜 the protection 友農of the metal to apply a certai資喝n cathodic current, so that it pr市員oduces cathodic pol作樂arization, when the potential of the m信開etal is negative to a certain 討畫potential value, the anodic dissolu討相tion process of 你近corrosion will be ef議我fectively inhibited. Acc劇訊ording to the different ways of爸報 providing cathodic curren我志t, cathodic protectio人歌n is divided into two kinds of什身 sacrificial anode metho務離d and applied curren訊商t method. Sacrificial anode method is 森黑a more negative potential m山些etal or alloy and the protection of 筆靜metal structures electrically conne區刀cted, through the continuou數黑s consumption of electro-negative meta那子l or alloy dissolution, to pro木窗vide protection current to th視道e protected material, so that the met新從al structures are protected. The ex火物ternal current m吧兵ethod is to convert the external alt女西ernating current into low老歌-voltage direct current, thro土森ugh the auxiliary anode t爸得o protect the furnace current t年市o the protected 讀樂metal structure, so 玩知that corrosion is inh人好ibited, the system throug吃靜h the reference electrode to measure 木民the potential and the c區兒ontrol signal back-e是在xplosion to the constant pote花房ntial meter. To技遠 adjust the outgoing curre他訊nt, so that the metal structure in a go好樹od state of protect紙她ion.

In general, the房和 cost of cathodic 年南protection accounts for only 1%-3%南明 of the cost of the protected metal str短著ucture, while the service life of t離工he structure can be extended e開場xponentially or even劇相 dozens of times. Because cathodic prot間去ection has the adva拿愛ntages of simple equipment, conveni去林ent construction, and long物自 protection time. In recent years,熱家 it has been developed and widel風數y used, and is 聽高an applicable technology with low請看 investment, good effe東山ct and more obvious economic道林 benefits.

The company has been engaged in the re唱裡search and application of cath嗎高odic protection technology for many ye票內ars, and has integrated 光嗎the research and development, de線師sign, production, construct輛能ion and engineering contract of catho電道dic protection technology an商媽d products. The company has 子聽undertaken nearly 工師1,000 cathodic protect友現ion projects in the fields of s金會hips, port facilities, buried事算 pipelines and networks, 朋睡petrochemical industry, ele從間ctric power, marin煙我e engineering, etc.

○ Application area生紙s

Ships, port facilities, offshore, b街黃uried pipelines an商火d networks, storage tan媽低ks, power plants, oil refineries a房如nd chemical plants, rein你到forced concrete structures樂爸 and pile foundation員習s of buildings.

○ Service scope

Design and construction of vario頻多us cathodic protection projects, variou員高s cathodic protection products, te會還chnical training長化, technical guidance and technical se體你rvices

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