Has China conquered the pressure hull and welding technology of military single-hull submarine?

It should have overcome

In fact, there are two main difficulties in a single-hull submarine.

1. The pressure-resistant material of the hull is said to have overcome

2. The size of the plate bending machine is actually not the biggest problem.

This year, the world's largest plate bending machine has been built. Then there is no problem in the next step.

The world's largest three-roll plate bending machine was born in Hubei Province.

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Recently, the world's largest three-roll plate bending machine with a maximum reduction force of 8,16 tons was born in Hubei Hubei Province Heavy Machinery Co., Ltd.

This plate bending machine belongs to a three-roll plate bending machine, with a length of 11.8m, a width of 8.83m and a width of 9.78m, a maximum reduction force of 8,16t, a self-weight of 9,t (excluding hydraulic and electrical equipment), a maximum thickness of 4mm and a maximum width of 3,mm. The plate bending machine is divided into three parts: mechanical, hydraulic and control, which can not only display real-time pressure, but also control pressure accurately. Thousands of components are specially made, and Hubei has dozens of patents.

last year, Hubei heavy machinery co., ltd. and Huazhong university of science and technology jointly developed a large-scale numerical control sheet metal processing and forming equipment-a large-scale hydraulic stepless horizontal downward three-roll plate coiling equipment, with a maximum reduction force of 7, tons, which was the first in the country at that time and the second in the world. This product won the third prize of Hubei Science and Technology Progress Award.