Chapter 777

When he found the material of the wool core in his hand, merlinz immediately felt as if he had seen a ghost. But just because of this, the things in his Western hand were as ethereal as expensive.

No way, because he really can't believe that this space class advanced carbon fiber material can be born in China with backward technology.

Because of this, when he was surprised to ask questions, merlinz was staring at Zhuang Jianye. What he wanted to hear was, oh, it was imported from XX company in Europe and America.

However, this idea is extravagant after all. Zhuang Jianye only smiles and nods: "Mr. merlinz is worthy of being an expert in the field of aerospace. He can see the material of wool core at once. Yes, it uses aerospace grade M40J carbon fiber composite material. In the first half of the year, our Tengfei group has just successfully developed and achieved mass production. The cost is a little cheaper than that of foreign similar products, but the cost per square meter is low Six thousand dollars per square meter. "

With that, Zhuang Jianye took another wool core from the worker's hand and held it in front of him: "in such a loop heat pipe, the heated gasification can be promoted, and the working medium of precooling liquefaction can be recycled independently. Wool core plays a vital role, so the material must be light and reliable, so we chose M40J carbon fiber composite as the main material of wool core.

But you can't underestimate such a small cylindrical part. It takes 5 square meters of M40J carbon fiber composite material to be bonded, solidified and cut before it can be finally formed. No matter what the processing cost is, the material cost alone is 300000 US dollars. Mr. merlinz, you are an expert in the field of aviation and aerospace. I won't tell you those useless ones, just the material cost of the wool core. I'm sorry Did Jianye raise the price to you? "

After listening to Zhuang Jianye's question, merlinz opened his mouth and said what he wanted to say. But when he opened his mouth, he didn't say a word.

The reason is very simple. According to Zhuang Jianye's quotation of US $6000 per square meter for M40J carbon fiber composite, instead of raising the price, it is one third less than that of other manufacturers of this material in the world.

In other words, the international market price of M40J carbon fiber composites should be at least 9000 US dollars per square meter.

Yes, you are right. When it comes to m-grade carbon fiber composites, the unit quoted is square, not T-grade kilogram.

The reason for this is that the m-grade carbon fiber composite has larger, stronger, more advanced parameters and is more difficult to manufacture than the T-grade, so the price of m-grade carbon fiber composite is naturally several times that of T-grade.

But just because of this, m-grade carbon fiber composites have become the most important materials for spacecraft production, because compared with T-grade carbon fiber composites such as T300 and T700, m-grade carbon fiber composites have lower deformation, higher rigidity and lighter self weight in complex environment.

We should know that the space environment is not only a double sky of ice and fire, but also all kinds of radiation and other unexpected interference. If it is made of ordinary materials, it will be eroded by the harsh space environment beyond recognition.

Because of its high specific strength, high specific modulus and small linear expansion, m-grade carbon fiber composites become one of the few high-performance materials that can adapt to the complex space environment.

Since the mid-1980s, the United States, which took the lead in completing the M40 carbon fiber composite, has widely used this material as a force bearing bar, truss, sandwich panel, antenna bracket and battery support frame in the development and production of satellites, thus making the United States a leader in the field of satellites. At the same time, it has also formed a monopoly position of the United States in the M-class carbon fiber composite.

Subsequently, M40J carbon fiber composite with better performance was introduced, which immediately became the main structural material of several advanced satellites and spacecraft, such as GPS navigation satellite, DSP infrared early warning satellite, international communication satellite, etc.

Of course, the price of this kind of high-end space materials monopolized by the United States is also moving. When they first came out, M40 carbon fiber composites cost 15000 US dollars per square meter.

This is a friendly price that only the allies of the United States can enjoy. If a country or enterprise buys it, it costs at least $20000 per square meter.

As for the upgraded M40J carbon fiber composite, the price is as high as US $30000 per square meter.

In recent years, with the increase of production capacity of related enterprises in the United States and the dilution of costs, the price of such high-end aviation materials has come down. However, even so, M40 carbon fiber composites cost 5000 US dollars per square meter, and M40J carbon fiber composites cost 9000-10000 US dollars at least.

Because of this, Zhuang Jianye said that the price of M40J carbon fiber composite of Tengfei group is only 6000 US dollars per square meter, which is not as simple as a conscience, but a great conscience.

By this measure, the cost of the cylindrical wool core in hand is 300000 US dollars, which is not too expensive. After all, in the face of the high price of tens of thousands of US dollars, the price of 6000 US dollars should not be too low.

In this case, even if merlinz wants to blurt out 10000 words, he can't get a word out of his mouth. Who can make the price of American m-grade carbon fiber composite materials so bright? Even the novices who just joined the industry know it very well. Merlinz is acting, and he can't fool Zhuang Jianye in this respect.Zhuang Jianye, on the other hand, looks at merlinz, who has been trying to talk for several times. He doesn't mean to urge him. Everyone is smart. Naturally, he understands that merlinz is out of his wits. Without saying anything, Zhuang Jianye has a sneer in his heart.

If DL aerospace special processing equipment is bronze, loop heat pipe technology is gold, then M40J carbon fiber composite is the real king.

Yes, it's just the king, not the diamond. It can even be said that M40J carbon fiber composite is only the primary version of the king in today's huge field of carbon fiber materials of Tengfei group.

Because there are two more excellent M-class carbon fiber composites, m55j and m60j, which are under development.

In addition, real diamond grade P-grade carbon fiber composites have been put on the research agenda.

Compared with T-class and M-class carbon fiber composites, the performance of p-class carbon fiber composites, which have been launched in Tengfei group, is more outstanding, even to the extent of changing state, because the application scene of such materials is neither T-class aviation nor M-class outer space, but the so-called supercritical space.

In other words, it is the most ideal external material for hypersonic vehicles and orbital gliders.

If you want to float in the atmosphere at Mach 10, P-grade carbon fiber composites will be an unavoidable obstacle, because only such materials can meet the requirements of high temperature resistance, shock wave resistance, light weight and high strength.

After years of accumulation, Tengfei group has accumulated good technology in the field of P-grade carbon fiber composite materials. Due to the complexity and high difficulty of material modification, it will have to wait at least five to ten years to achieve results.

However, even if this kind of material is made, it must be a non-commercial product. After all, it is a special material tailored for the country's heavy equipment. Naturally, it can't be ignored by others.

Can't sell, put in so much cost how to do?

Of course, it's from other levels. Otherwise, why did Zhuang Jianye enlarge his recruitment? The cost of 600 RMB per square meter is 6000 US dollars per square meter, not to stand and earn money.