Cathodic protection is one of the地都 most effective met北好hods to prevent e秒房lectrochemical corrosio場公n of metals. It is放多 through the protection of the m懂西etal to apply a certain cathodic curre山雨nt, so that it produces cathodi也新c polarization, when the potenti有文al of the metal is neg低大ative to a certain potenti光要al value, the an西兒odic dissolution process of 離信corrosion will be effective子術ly inhibited. Accordin購行g to the different way暗靜s of providing c高山athodic current, cath短喝odic protection is divided into two 雜河kinds of sacrificial anode meth你電od and applied current meth費舊od. Sacrificial anode method is a mor東些e negative potential metal or 遠樂alloy and the p雪土rotection of met朋什al structures electrically connec是生ted, through th去用e continuous consumption of el西雜ectro-negative metal or all鄉從oy dissolution, to provid小要e protection curr地友ent to the protected m愛鄉aterial, so that the metal struc商答tures are protected. The external curre街大nt method is to 知劇convert the exter現山nal alternating current 遠黑into low-voltage direct 街知current, through the auxiliary an的冷ode to protect the furnace c日姐urrent to the protect習得ed metal structure, so th答聽at corrosion is inh喝朋ibited, the system 這草through the reference elec資國trode to measure the亮新 potential and the control商爸 signal back-explosion to th中友e constant potential mete紅習r. To adjust the林影 outgoing current, so that the要白 metal structure in a花器 good state of 可一protection.

In general, the cost of cathodic prote能唱ction accounts for o中購nly 1%-3% of the cost of the protecte劇鐵d metal structure, while the司如 service life of 子匠the structure can be extended exp些工onentially or e些這ven dozens of tim笑數es. Because cathodic protect大報ion has the advanta他水ges of simple equip場紙ment, convenient 頻們construction, and long protec多在tion time. In recent years, it 放藍has been developed and widely used作風, and is an applicab紙不le technology with low invest白我ment, good effect an老唱d more obvious economi讀通c benefits.

The company has been engaged in音哥 the research and application of睡不 cathodic protection te時市chnology for many years, and has integr離業ated the research 事黃and development, design,生年 production, constructi新妹on and engineering con東自tract of cathodic protection 水雜technology and products. The company h市雨as undertaken nearly 1,000 cathodic藍務 protection projects in the fields of s雪場hips, port facilities, buried pipeli友外nes and networks, petrochemical ind姐票ustry, electric power, marine engine知上ering, etc.

○ Application areas

Ships, port facilities, offshore, bur嗎下ied pipelines and networks, s多民torage tanks, pow員視er plants, oil refine公友ries and chemical plants, reinforced co地如ncrete structur微些es and pile foundations of buildings.

○ Service scope

Design and construc些海tion of various cathodic pr為些otection projects, various c妹月athodic protection product費開s, technical train明些ing, technical guidance a一們nd technical services

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