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Sevmash shipyard uses polymers in nuclear submarine construction.


| 2021

According to a news published by Tass on February 10, 2021, Sevmash Shipyard said it had begun to use polymeric materials in the construction of nuclear submarines. They will be used to install zonal blocks with equipment weighing over a hundred tons.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001Russian submarine Knyaz Oleg (Picture source: Tass)


The technology was tested in a laboratory and on a submarine. The Defense Ministry and the shipbuilding center provided the necessary conclusions. Designers supported the use of new materials. Polymeric compensators are expected to save over 80 million rubles in submarine construction.

Sevmash earlier said it was introducing block-modular construction of nuclear submarines. The technology increases quality and decreases labor intensity due to hull assembly from pre-fabricated modules. The slipway construction period accelerates by 18 months.

Sevmash specializes in the construction of nuclear submarines for the Russian Navy. However, the company has experience with modern diesel-electric submarines. In 2005, Severodvinsk shipbuilders built for the Chinese Navy two Project 636 submarine improved version of the Project 877 submarine. These submarines have a length of 73.8 m, width of 9,9 m, submerged speed of 20 knots and maximum immersion depth of 300 m.


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