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Marine research institute’s buoyancy material helps deep diving operations
Source: ChemChina Date: 2014-05-06

The 4,500-meter deep diving system Haima, a key 863 program in marine technology, passed an acceptance check in the South China Sea by the Ministry of Science and Technology in April. ChemChina’s Marine Chemical Research Institute was part of the research force behind the program. 

Haima underwent three marine tests and took 17 dives, including three reaching the bottom of the central sea basin, with maximum depth at 4,502 meters. The test hours amounted to more than 100. Haima’s main floating body (orange part in the picture) consisted of deep-sea buoyancy materials developed by the Marine Chemical Research Institute. It ensured normal operations during multiple dives and recovery. An expert team on the field concluded that Haima passed the check.

Haima is China’s biggest unmanned and remote-controlled submersible that can work at the deepest water area so far. It’s another significant achievement after the Jiaolong submersible in China’s marine technology field after six years of hard work by researchers. It marks that China has fully grasped key technology in unmanned and remote-controlled submersibles that can work in deep waters.

The buoyancy material has been differentiated to cater to operations in water from the surface down to 10,000 meters, and its performance is on a par with other advanced international peer products. The material has played an important role in ensuring the safety of the submersible and life. It can be widely used for underwater robots, unmanned submersibles, deep-sea miners, buoys and escape capsules, and has a broad prospect for applications in offshore oil exploitation system, airplanes and aerospace.

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