First of all, Angang is the third largest marine materials company in the world, and now it has been able to supply steel, high-strength ship plates and large marine parts for all kinds of military and civil ships in China. It can be said that the product covers all materials except the yield exceeding 1 000 MPa.
As for Baosteel WISCO, the level is the same. One is to develop and produce dual-performance disk materials and titanium alloy production lines for aero-engines, and the other is to produce submarine materials.
Jiangnan factory can now manufacture and weld 100MM thick ship plates, and Dalian can also do so. Only a few big factories in the world have this ability.
As for super-large ship types such as LNG VLCC 65438+100000 TEU container ship, China can now design, develop and produce key components and high-pressure components by using its own welding technology. Of course, these are the overall progress made on the basis of technology introduction, digestion and absorption.
Modular construction technology has been in the 054 series in China, which was introduced in the earlier news. FCB welding technology has been adopted by the basic large and medium-sized shipyards in China.
China exports more than100000 tons of shipbuilding boards to South Korea, Japan and the United States every year. As for the 300,000-ton and 500,000-ton docks, I can only say that they are blooming everywhere. The largest gantry crane produced and built in China is 900 tons, located in Changxing, Dalian.
The localization rate of diesel engines for engines, submarines and ships is above 94%. The imitation of QC280(GT25000) has been basically completed. The 8000 TEU container ship engine for 300,000-ton ships can be mass-produced in China (both localization and technical introduction of marine engines can be carried out in China). At present, the power control system of 654.38+ million-ton ships can be completely developed by our country, and the localization rate is 60.
The 300,000-ton marine propeller with a diameter of10m, the five-blade marine propeller with large lateral oblique pitch and the civilian propeller with pitch can be manufactured and exported to China and other places.
At present, there are at least three kinds of crankshafts with 300,000 tons or less in China, including CNC machine tools for manufacturing crankshafts, all of which are mainly made in China. As for the materials, they are basically provided by domestic steel mills.
The main gap between China and Japan, the United States and other shipbuilding powers is that the shipbuilding automation level is low, welding robots have just been adopted, the ratio of laser welding technology is not high, and the shipbuilding technology innovation is not as strong as that of developed countries.