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China's high level carbon fiber technology and foreign what gap? Count the development of Chinese carbon fiber composite material progress!
2016-09-26
The development of Chinese carbon fiber composite materials
A, China's carbon fiber strand production progress
Carbon fiber producers in China began to rise from 2008, heng group and double seals god took the lead in 2010 to achieve the thousand tons of production capacity, dalian xlrdzwy carbon fiber and bluestar fiber is also catching up, has a lot of potential competition. But on the product category, especially high level of carbon fiber technology, and manufacturers have a certain gap between carbon fibers (cf) abroad, at present, China has relatively mature grade T300 materials, and T700 above levels of the composites is still in development and small-scale trial production.
1. The development progress of T700
In recent five years, the Chinese T700 level military carbon fiber materials production technology mature gradually. According to reports, the launch of double seals company T700 production line is the third in the world by dry jet wet spinning process system of the commercialization of the production line, 2014 China building materials group co., LTD., the progress of science and technology awards won the first prize in class, has important strategic significance. Domestic T700 composite core has been successfully applied in the wind vane, cable, pressure vessel and the emerging industries such as transportation, and for a certain aviation aircraft and aerospace equipment.
Information from multiple sources suggest that the 25, 2012 - ton T800 production line after completion of commissioning, China's first thousand tons T800 production line in March 2014 in the foundation of zhenjiang new district. Jiangsu navigation investment of 600 million yuan, is expected to put into production in 2016. By the end of 2014, the shipping department has applied for 80 national invention and utility model patents, 42 items for carbon fiber production process test specification, environmental protection and energy saving measures to reduce the product cost 30%, product performance discrete below 5%. Jiangsu navigation grade T800 materials have series of high-performance carbon fiber preparation technology and low production cost, raw materials and the main equipment for the production of carbon fiber almost 100% from domestic.
3. The T1000 and higher level development progress of the carbon fiber
Jiangsu navigation section in 2020, is expected to build thousand tons T1000 MJ series carbon fiber production line and best ton high strength and high modulus carbon fiber production line. And carry out T1200 and M70J higher performance such as fiber and special development and industrialization of the composite material.Second, carbon fiber composites production technology progress in China
Shop manual fold automation: airline with the most advanced composite components are still in use manual shop fold, presoak material automatic cutting machine and laser projector two key equipment most need. And for large components, shop is still difficult to guarantee quality and speed.
Automatic machine shop: China is preliminary research stage. Developed by Beijing institute of aviation manufacturing engineering 6 m x 20 m large automatic machine shop, began in new aircraft composites experimental application in the development of the components.
Automatic wire machine: haven't seen a home-made equipment application.
Automatic laying machine technology progress:
Catic industrial manufacturing technology team in 2006, is committed to engineering application of the composite automatic laying, through nearly 10 years of solid research, major progress has been made. Domestic chengdu are also related to technology development and engineering applications for solid results.
Carbon fiber silk machine automatically
Catic composites has completed with domestic presoak preparation, laying process and other related series of research and engineering application verification, automatic with the shop have already been used for new aircraft wing composite wall; Subjects for civil aircraft wing, wing requirements, completed the tail flat tail skin, skin the wing of the series research and validation test. Between the factory high across the purification of catic composites, the most advanced large-scale automatic spread with equipment - 1 spread machine 30 m * 6.5 m, with 32 tow laying ability, which can realize large laying of composite components.Air China news network reported that chengdu "large overall composite wall board precision manufacturing technology research" one-time in 2014 through the results of scientific and technological achievements appraisal:
(1) for the first time in the assembly of aircraft wing wall plate with composite materials automatically spread with technology, solved the whole large composite wall plate and the key technologies of precision manufacturing, established automatically spread with process specification standards;
(2) is developed based on laser projection technology automatically spread with on-line detection technology, has realized automatic laying belt size, Angle, quickly and accurately detect contour, applied for a patent for invention;
(3) is proposed based on digital technology cap shape reinforced wall R method, the accurate filling filler molding tooling developed a special corner R area, realize the cap structure of one step forming manufacturing;
Chengdu project has applied for 4 invention patents, and has been successfully applied to the composite wing large wall plate in the manufacture of the product quality is stable and reliable. Sichuan province science and technology appraisal committee, said: overall domestic leading technology, the project has reached the international advanced level.
In addition, the automatic wire machine and automatic machine shop, the domestic most advanced 1 shop 30 m * 6.5 m wire machine is also equipped with catic composites, are combined with a commercial project, carry out automatic wire technology research and engineering verification.
Catic composites resin in material, special production workshop 15000 square meters, equipped with 4 sets of advanced international large hot melt dipping machine. In technology, the basic grasp of the third generation high performance composite materials key technologies, 5228 e, 9918, and AC531 toughness of high toughness of resin composites has reached to the Boeing company to develop the high toughness of carbon fiber epoxy presoak standard (BMS8-276).
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