Discovering the material of the hair core in his hand, Merlinz immediately felt as if he had seen a ghost, but because of this, the things in his hands were really as illusory as expensive.

There is no way, because he really can't believe that this aerospace-grade high-grade carbon fiber material can be born in China, which is technologically backward.

Because of this, when he asked in surprise, Mellintz stared at Zhuang Jianye, hoping to hear, oh, this is imported from the XX company in Europe and the United States.

However, this kind of thinking is an extravagant hope after all, I saw Zhuang Jianye smile and nodded: "Mr. Mellintz is worthy of being an expert in the aerospace field, and he can see the material of Mao Xiner at once, yes, the use of aerospace-grade M40J carbon fiber composite materials, our Tengfei Group has just successfully developed and achieved mass production in the first half of the year, and the cost is slightly cheaper than similar foreign products, but it still needs 6,000 US dollars per square meter." ”

Saying 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 heating vaporization is promoted, and the pre-cooled liquefied working fluid can be circulated independently, and the hair core plays a vital role, so the material must be light and reliable, so we chose M40J carbon fiber composite material as the main material of the hair core."

But don't underestimate such a small cylindrical part, but it takes 5 square meters of M40J carbon fiber composite materials to be bonded, cured, and cut before they can be finally formed, no matter the processing cost, the material cost alone is 300,000 US dollars, Mr. Mellintz, you are an expert in the aerospace field, I won't tell you those useless, just say that the cost of materials for this wool core, I Zhuang Jianye raised the price to you?"

Mellintz listened to Zhuang Jianye's question, his mouth opened, and he wanted to say something, but he changed his face, and he didn't say a word, not because he didn't want to say it, but he really couldn't say it.

The reason is simple, according to Zhuang Jianye's quotation of $6,000 per square meter of M40J carbon fiber composite materials, instead of raising the price, it is one-third less than the quotation of other manufacturers of this material in the world.

In other words, the international market price of M40J carbon fiber composite materials is at least 9,000 US dollars per square meter.

Yes, you are right, when it comes to M-level carbon fiber composites, the unit of quotation becomes squared, not T-level kilograms.

The reason for this is that the parameters of M-level carbon fiber composites are larger, stronger, more advanced and more difficult to manufacture than those of T-level, so the price of M-level carbon fiber composites is naturally several times that of T-level.

But because of this, M-class carbon fiber composite materials have become the most important production materials for spacecraft, because compared with T300, T700 and other T-class carbon fiber composites, M-class carbon fiber composites have lower deformation, higher rigidity and lighter weight in complex environments.

You must know that the space environment is not only ice and fire, but also all kinds of radiation and other unexpected interference, if it is a general material, three times five divided by two will be eroded beyond recognition by the harsh environment of space.

M-grade carbon fiber composites have become one of the few high-performance materials that can adapt to the complex environment of space because of their high specific strength, high specific modulus, and small line expansion.

Therefore, since the mid-80s, the United States, which took the lead in completing the M40 carbon fiber composite materials, has widely used this material as a load-bearing poke, truss, sandwich panel, antenna bracket and battery support frame in the development and production of satellites, thus making the United States far ahead in the field of satellites, and also forming a monopoly position of the United States in M-level carbon fiber composite materials.

Subsequently, M40J carbon fiber composite materials with better performance were launched, which immediately became the main structural material of several advanced satellites and spacecraft such as GPS navigation satellites, DSP infrared early warning satellites, and international communication satellites in the United States.

Of course, the price of this kind of high-end aerospace materials monopolized by the United States is also touching, and the M40 carbon fiber composite material cost $15,000 a square when it first came out.

This is still a friendly price that only allies of the United States can enjoy, and if the average country or enterprise buys it, it will cost at least $20,000 per square meter.

As for the upgraded M40J carbon fiber composite material, the price is as high as 30,000 US dollars per square meter.

In recent years, with the increase in the production capacity of related enterprises in the United States and the dilution of costs, the price of such high-end aviation materials has fallen, but even so, the M40 carbon fiber composite material costs 5,000 US dollars a square, and the M40J carbon fiber composite material has to be at least 9,000 to 10,000 US dollars to get it.

Because of this, Zhuang Jianye said that the price of Tengfei Group's M40J carbon fiber composite material is only 6,000 US dollars per square meter, which is not as simple as a conscience, but a great conscience.

In this way, the cost of the cylindrical hair core in his hand is not too expensive, after all, in the face of the high price of tens of thousands of dollars per square meter, the price of 6,000 US dollars is really not too low.

In this case, even if Mellintz wants to blurt out 10,000 words, he can't pop a word out of his mouth, who makes the price of M-class carbon fiber composite materials in the United States so clearly there, so that the rookies who have just entered the industry know very well that Mellintz can't fool Zhuang Jianye in this regard even if his acting skills crush the Oscars.

And Zhuang Jianye looked at Mellintz, who wanted to speak several times and stopped, without the intention of urging at all, everyone is a smart person, naturally they understand that Merlintz is poor in donkey skills, Zhuang Jianye didn't say anything on his face, but he sneered in his heart.

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

Yes, it is only the king, and it has not reached the diamond, and it can even be said that the M40J carbon fiber composite material is only the primary version of the king in the huge field of carbon fiber materials of the Tengfei Group.

Because on top of it, there are two M-class carbon fiber composite materials with better performance, M55J and M60J, which are being developed intensively.

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

Compared with the two carbon fiber composite materials of T class and M class, the performance of P-class carbon fiber composite materials that have been launched within Tengfei Group is more prominent, and even reached the degree of changing ~~, because the application scenario of this type of material is neither T-level aviation nor M-level outer space, but the so-called supercritical space.

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

If you want to play in the atmosphere with Mach 10 hypersonic speed, P-class carbon fiber composite materials are a hurdle that cannot be bypassed, because only this kind of material can achieve high temperature resistance, wave resistance, light weight, high strength and other requirements.

After years of accumulation, Tengfei Group has a good technical accumulation in P-level carbon fiber composite materials, but it can be between the complexity and difficulty of changing materials, and it will take at least five to ten years to achieve results.

However, even if this material is made, it must be a non-sale, after all, it is a special material tailored for the country's heavy equipment, and it naturally cannot be taken lightly by others.

But what if you can't sell it, what if you invest so much cost?

Of course, it was made up for from other levels, otherwise why would Zhuang Jianye magnify the move, the cost of 600 yuan per square meter is 6,000 US dollars per square meter, and it is not to earn money by standing.