Home > News
What is the level of carbon fiber in China?
Release date: [2017/10/13] Read total of [702] times

Q: M60J carbon fiber China can be produced? What is the level of carbon fiber in China? What about Japan, the United States? Can China's carbon fiber meet defense needs? Can China produce T1000, T700, T600 carbon fiber?

Our country cannot produce M60J carbon fiber now. In today's material world, carbon fiber is one of the worst parts of China compared to Europe and America. China's carbon-fibre development capabilities are at the bottom of a number of countries and regions with carbon-fibre production capabilities, not to mention the top level of Japan compared with the United States. Although many netizens look down on the manufacturing industry in Taiwan, Taiwan realized the commercial production of T800 carbon fiber a few years ago.

Carbon fiber raw silk

General sense of carbon fibre used in aircraft and satellite, can be divided into three categories: high strength (snap) difficult, high modulus () difficult to deformation, special-shaped (such as the interface shape is Y, cross, H shape, etc.) special fiber cross section of the class. At present, the domestic level is in the basic implementation of t300-t700 high strength carbon fiber reliable mass production. The original silk of T300 ~ T700 is 7 microns, while T800 will be reduced to 5 micron and there is a large threshold for technology.

Speaking of T800, although last year in China are known as tonnage T800 carbon fiber production line, through the identification of but it is worth noting that the problem is that on the production of T300, had a very bad precedent: domestic production line boasts complete technology breakthrough, also get prize work also review, yet over the years due to the original performance and quality level is very poor, have not been able to really put into use. In the late 1980s, with the use of Japanese imports of raw silk, domestic T300 carbon fiber could be qualified. But it is in recent years that the truly nationalized T300 can be delivered to the real aerospace sector. So, small make up still wait to see the news that production line actually put into production come to make a conclusion again.

Ordinary carbon fiber section under electron microscope

In high modulus carbon fiber, represented by M60J due to the low degree of attention (high cost use narrow, mainly used for satellite), high technical difficulty, the domestic has not been heard about any practical products. According to the existing high strength T series fiber, high modulus fiber in the domestic future should be equivalent to M40J.

Various types of carbon fiber sections

The special fiber of the cross section is completely blank. This fiber is mainly used to absorb the electromagnetic wave absorbing composite structure; Composite materials such as B2 stealth bombers, half is such a special fiber, the specific circumstances of small make up is, of course, I don't know, but sources say are square interface of carbon fiber and microporous carbon particles on the surface.

Q: why does China need Russia's rocket engine as a space power?

Well, the question is, at the moment, this is just a word of the mazier media, and no official body on our side has confirmed this claim. And by the way the media has always been on the spectrum, you know...

But don't deceive you to say, in the one hand can count "space" of the great powers, China is still one of the most backward - currently serving the whole series of long march rocket (the long March 1/2/3/4) engine overall design, originate from dongfeng series 5 missiles, is actually the 60 s and technology of China. They adopted the "nitrogen tetroxide + partial dimethyl hydrazine" combination, a simple ignition (two fuel components meet the intense burning) the advantages of reliable, but the environmental pollution is very severe, and highly toxic fuel itself, is a type of engine will be eliminated sooner or later.

These brown smoke are highly toxic and polluting

Because of the special social background, 60-70 - s and the 80-90 - s economic woes, domestic only do eke out in space, the new type of environmental protection, the research on the basis of high thrust rocket engine almost no decent. Before 2000, say Chinese rocket engine technology in the overall level still remain in the 1970 s, rapid development at the time of liquid oxygen/kerosene engine, liquid oxygen/liquid hydrogen engine technology in the field of accumulation, is very shallow.

The rd-180 engine of the wool represents the world class level in the field of liquid oxygen kerosene engine