Chinas annual marine corrosion loss is 700 billion, such as protection can reduce 1/3

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 Chinas annual marine corrosion loss is 700 billion, such as protection can reduce 1/3


Since 2015, relying on the major advisory project of the Chinese Academy of engineering, Research on Chinas corrosion status and control strategy, including 200 scientists and technicians, including nearly 30 academicians, a survey of corrosion costs and protection strategies has been carried out in 5 fields, such as infrastructure and water environment. The results show that the total cost of corrosion in China is about 2 trillion and 100 billion yuan in 2014, accounting for 3.34% of the gross domestic product (GDP) of that year. 4. 24 is the world corrosion day. The chief scientist of the project, Hou Baorong, the academician who engaged in the research of marine corrosion and protection, received an interview with the reporter of the science and technology daily. Compared with other corrosion, the marine corrosion is particularly serious. He pointed out that the loss of marine corrosion accounts for about 1/3 of the total corrosion loss, which amounts to 700 billion yuan. This also reflects the current situation of marine corrosion cost in China. Some marine engineering components have been corroded for several years In the eyes of researchers engaged in marine corrosion and protection, it is a sea tiger in the eyes of the research personnel engaged in marine corrosion and protection. The catastrophic accident caused by marine corrosion has caused huge losses. In 2010, the failure of the British oil company Mexico bay Deepwater Horizon drilling platform failed to cause the explosion, leading to the most serious environmental disaster in the United States. Apart from safety problems, marine corrosion also brings huge economic losses. Hou Baorong said that during the past 10 years, the construction of seaports, bridges, tunnels and coastal projects in China has been developing vigorously. According to the design, major marine engineering facilities usually have decades or even hundreds of years of service life. However, the survey shows that only a few years after the completion of some structural parts in China, rust occurred. Key problems of marine engineering anticorrosion need to be solved A piece of steel can be sprayed on the surface of the sea in the ocean, but the area that can not be immersed in the sea at high tide is called the splash area. The corrosion rate of spray splash area is generally 3 to 10 times of total immersion area, and corrosion is the most serious. During the 11th Five-Year, the Institute of Oceanography of the Chinese Academy of Sciences developed a new type of compound layer mineral coating technology for marine steel structure wave spatter zone with water operation, which greatly extended the maintenance period of the facilities. But in Hou Baorongs view, there are still a lot of common problems and key problems in marine engineering corrosion protection. It is necessary to carry out research and development of marine corrosion and biological corrosion mechanism and protection technology in view of the major demand for corrosion protection of marine engineering facilities in China. Although marine corrosion is alarming, it is not instantaneous. Targeted measures can effectively control the corrosion problem. But the project participants and assistant researcher Lu Dongzhu of the Institute of Oceanography of the Chinese Academy of Sciences told reporters: the survey found that some decision-makers, designers and builders only consider short term cost benefits, resulting in large maintenance and maintenance of some facilities in the near future, which has a negative impact on the operation of Shi Zhengchang. If protective measures are in place, at least 15% to 35% loss per year can be avoided. Hou Baorong said that compared with developed countries, Chinas corrosion investigation work was carried out late, and he also hoped to strengthen peoples awareness of corrosion hazards through this investigation and improve peoples awareness of corrosion protection. Source: ScienceDaily editor in charge: Zhang Xianchao _NN9310 It is necessary to carry out research and development of marine corrosion and biological corrosion mechanism and protection technology in view of the major demand for corrosion protection of marine engineering facilities in China. Although marine corrosion is alarming, it is not instantaneous. Targeted measures can effectively control the corrosion problem. But the project participants and assistant researcher Lu Dongzhu of the Institute of Oceanography of the Chinese Academy of Sciences told reporters: the survey found that some decision-makers, designers and builders only consider short term cost benefits, resulting in large maintenance and maintenance of some facilities in the near future, which has a negative impact on the operation of Shi Zhengchang. If protective measures are in place, at least 15% to 35% loss per year can be avoided. Hou Baorong said that compared with developed countries, Chinas corrosion investigation work was carried out late, and he also hoped to strengthen peoples awareness of corrosion hazards through this investigation and improve peoples awareness of corrosion protection.