U-shaped heat-transfer tube for nickel base alloy nuclear steam generator
There are about 20 key technologies, typical of which are:
Independently designed and built a world-class dedicated production line;
Design of chemical composition, uniformity and purity of materials;
Refined surface treatment;
Precise heat treatment technology.
Achievements:
The product has filled the domestic gap and has been successfully applied to Hualong No. 1, AP1000, CAP1400 and other pile shapes.
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PF conductor armor for nuclear fusion ITER (square reducer pipe)
ITER project is launched to solve the future energy problems of mankind. It is currently the largest and most far-reaching international scientific research cooperation project in the world. Its PF/TF armor manufacturing technology is mastered by very few companies in the world;
Key technologies:
Stable and accurate hot extrusion technology, to solve the problem of special-shaped section forming;
Variable cross-section high-precision cold processing technology; refined surface treatment technology;
Integrated tool and die design and manufacturing technology;
Status quo:
All the performance indicators of PF catheter meet ITER technical specification, especially the low temperature extension of 4.2K is more than 32%, which is in the international leading level.
The products are highly recognized by ITER organization.
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(Ultra) Supercritical boiler pipe
Main grades: S30432, S31042;
Key technologies:
Material composition and performance conformance design, to solve the problem of high temperature performance and high temperature steam corrosion for materials;
High-precision hot extrusion technology;
Hyperbolic large deformation cold machining technology;
Precise heat treatment technology;
The products are used for (ultra) supercritical power station boiler reheaters and superheaters, which need to overcome the corrosive environment of high temperature, high pressure and high temperature steam;
Since 2006, after more than 3 years of research and development, Jiuli is the first to achieve localization of the pipe in China.
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LNG large-diameter thick-walled pipeTDJ-G3/028 Corrosion-resistant alloy oil well pipe (OCTG)
Key technologies:
The hot extrusion technology of low-plasticity and high-resistance materials solves the technical problems of nickel-based corrosion-resistant alloy extrusion, delamination and cracking;
High-strength and large-deformation cold rolling technology solves the problem of high-grade steel strength;
The products are successfully used in oil and gas wells with a depth of 4000~6500m and high H2S and CO2 environment;
Sichuan Puguang Gas Field and Yuanba Gas Field
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LNG large-diameter thick-walled pipe
Key technologies:
Break through the forming technology of large-diameter thick-walled plate; break through thick-walled welding technology; and solve the problem of heat treatment deformation;
Ultra-low temperature environment;
The world's first FLNG, jointly built by Shell, Technip and Samsung Heavy Industries;
Localization of Hudong LNG ship;
LNG terminals (Tangshan, Shenzhen Dapeng, Fujian, Dalian, Jiangsu, Ningbo, Guangxi, Eastern Guangdong, Chaozhou, Zhoushan, Shandong, Shanghai, Zhuhai, Luoyang, etc.)
Tangshan LNG terminal: 1067mm* wall thickness of 12.7mm double-length 12m single-longitudinal welded pipe was the largest domestic stainless steel pipe used at the LNG terminal at that time.
Russia Yamal LNG: 1829*38.1mm*11.5m welded pipe
American Golden Pass LNG: 2032*25.4*12m welded pipe
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