Cathodic protection is one of 鐘道the most effective 頻空methods to prevent electroche愛街mical corrosion 近資of metals. It is through 水如the protection of the metal 少睡to apply a certain cath子歌odic current, so that 很得it produces cathodic polarization, wh要家en the potential of服道 the metal is nega區很tive to a certain potent聽姐ial value, the anodic di水紅ssolution process of corrosion她會 will be effectively門光 inhibited. Acc拿但ording to the different ways of pr城森oviding cathodic current, catho內理dic protection is d數她ivided into two外鐵 kinds of sacrificial anode method and師小 applied current method. Sacrifici大下al anode method is a m紙志ore negative potential metal or a一這lloy and the protection of me化化tal structures el又鄉ectrically connect懂姐ed, through the continuous consump器東tion of electro-negative me你場tal or alloy disso校廠lution, to provide prot上著ection current to the pro話吃tected material, so that th頻可e metal structures are prote河拍cted. The external current method is自服 to convert the externa雜光l alternating current into low-volta月西ge direct current的去, through the auxiliary anode 煙吃to protect the furnace 土票current to the protec也動ted metal structu森海re, so that cor訊坐rosion is inhibited, the system th樂匠rough the reference electrode冷影 to measure the pote錯去ntial and the co厭少ntrol signal back-e討友xplosion to the constant potentia為明l meter. To adjust the outgoin風路g current, so that the metal structure 訊雪in a good state of 土老protection.

In general, the cost of cathodic p可知rotection accounts for 從還only 1%-3% of th拿麗e cost of the protected met討討al structure, while the s舞們ervice life of the st音這ructure can be ex讀和tended exponentially or 業我even dozens of times. Be市農cause cathodic protection has the 請拿advantages of simple equi他門pment, convenient constructio業風n, and long pro費年tection time. In recent y下可ears, it has been 國鄉developed and widely us師他ed, and is an applicable te地志chnology with low些好 investment, good effect and more ob人內vious economic benefits.

The company has been engaged in the res亮討earch and application 章章of cathodic prot暗工ection technology for many years, a又化nd has integrated the算藍 research and development, desi開音gn, production, cons身中truction and en爸要gineering contract of 綠農cathodic protection te影公chnology and products. The compan很水y has undertaken nea對刀rly 1,000 cathodic村綠 protection proje計現cts in the fields of ships, 美鄉port facilities, buried pipelines 科很and networks, petrochemical 慢音industry, electric power, marine 鄉雨engineering, etc.

○ Application areas

Ships, port facilities, offsh要坐ore, buried pipelines and ne可購tworks, storage tanks, power plants,做雨 oil refineries and chem少照ical plants, reinforced co會妹ncrete structures and pile found冷影ations of buildings.

○ Service scope

Design and construction of農城 various cathodic protection船很 projects, various cathodic protec冷金tion products, 門物technical training, techn到水ical guidance and technical services

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