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Chapter 467 Something better than gold

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    "What new material?" Li Fang asked.

    Qian Qiang smiled sheepishly, then looked at Zhuang Jianye and said modestly: "I'm not very proficient in materials. Mr. Zhuang is the leader in this area, so let him introduce it."

    Zhuang Jianye had long expected that Qian Qiang would say this. There was nothing he could do about it. Qian Qiang was just such a person. He was always straightforward in his dealings with others. If he talked about aviation engines, he would tell you that he would not be tired even if he told you for three days and three nights. But if you leave,  He cherishes this little piece of land like gold.

    Materials, especially aerospace materials, Qian Qiang, a guy who works on gas turbine power plants, doesn¡¯t know how he can process materials into parts and apply them to gas turbine power plants?

    However, Qian Qiang felt that it was not his main research and development, and it was not his own achievement. If he said it, he would be suspected of using other people's achievements to put money in his own face. If this achievement was achieved by a man,  Yes, Qian Qiang's shameless face is understandable, but she is a woman, and she got it from a stubborn woman who was not as good as him in terms of professional titles and positions at Xihang University.

    No matter how thick-skinned Qian Qiang is, he doesn¡¯t want a stubborn woman to rub his spine from behind.

    Zhuang Jianye didn¡¯t care at all about the contempt chain between Qian Qiang and Song Yanan in the academic circle. They were both excellent senior experts in their fields, so they should be a little arrogant.  It's okay to despise each other and look down on each other, as long as you work hard for yourself.

    So Zhuang Jianye coughed lightly and took over the conversation naturally: "At present, our aviation technology research and development center under Ascendas Aviation Corporation has developed two new series of metal matrix composite materials in addition to carbon fiber composite materials. One is aluminum matrix  Composite materials, the other is titanium-based composite materials.

    Among them, titanium-based composite materials are silicon carbide fiber-reinforced titanium-based composite materials; there are two types of aluminum-based composite materials, one is silicon carbide fiber-reinforced composite materials, and the other is carbon fiber made of t300 carbon fiber composite materials.  Reinforced aluminum matrix composite.  "

    "Xiaozhuang, what did you just say you made? Carbon fiber reinforced aluminum matrix composite material?" This time it was not Li Fang or Song Changzheng who spoke, but Director Zhao who was watching from the sidelines.

    Because it was too sudden, and the voice was surprising and high-pitched, Zhuang Jianye was startled, but Director Zhao was particularly aware of his loss of composure. He stepped forward and stared at Zhuang Jianye's face with hope, urging him anxiously.  He said: "You are talking, have you really invented carbon fiber reinforced aluminum matrix composite materials? Can it be industrialized on a large scale? What is the current output? How much inventory do you still have here?"

    The barrage of questions made Zhuang Jianye's head buzz. Song Changzheng and Li Fang on the side were a little surprised when they saw this scene, because whether it was silicon carbide fiber or carbon fiber, they heard that they were surrounded by clouds and fog, so that Zhuang Jianye  After talking for a long time, I understood that one word was aluminum and the other was titanium.

    But why do we need to talk about fiber?  Can we weave cloth?

    However, this ridiculous idea only flashed through the minds of the two of them, because it was very simple. Judging from Director Zhao's excitement, it was obvious that the carbon fiber reinforced aluminum matrix composite material he was talking about was not simple.

    You must know that Director Zhao is in the aerospace system when he wears casual clothes, and he is the Second Artillery when he wears military uniforms. He is engaged in nuclear deterrence, and he is an important weapon for the country. If he takes out anything at all, it is one of the best in the country.

    Therefore, it is really difficult for ordinary things to catch the eye of Director Zhao. Otherwise, a few people just discussed igniting the turbine power for so long, and they didn't say a word. In addition to the embarrassment before, it was mainly because Director Zhao didn't care about it at all.  thing.

    No matter how powerful the airplane is, it is destined to wander around in the atmosphere. Director Zhao is all about stuff that rushes into outer space and reenters the atmosphere. The levels are not on the same level.

    But now the high-ranking director Zhao suddenly became enthusiastic and excited and asked Zhuang Jianye about carbon fiber reinforced aluminum matrix composite materials. Obviously this kind of thing is not ordinary.

    So the two of them looked at each other, and Song Changzheng immediately stepped forward without hesitation: "Old Zhao, Old Zhao~~~ Look how scared Xiaozhuang was. Calm down, calm down, come have a drink of water and let's talk.  , what exactly is carbon fiber reinforced aluminum matrix composite material."

    Being so reconciled by Song Changzheng, Director Zhao also felt that he had lost his temper. He took the water handed over by Song Changzheng and drank it down. Then he glanced sideways at Song Changzheng and Li Fang: "Good stuff, better than gold.  What you want, let me tell you this, with carbon fiber reinforced aluminum matrix composite materials, a missile with a range of 3,000 kilometers can immediately have a range of 5,000 kilometers"

    Director Zhao is indeed right. Structural materials for missiles, especially long-range missiles that can re-enter the atmosphere, such as missile bodies, instrument compartments, fairings, internal brackets, etc. must not only be lightweight, but also strong.The degree must also be large.

    Since the missile is launched into the air, the friction between the missile body and the air will generate high temperature, so the material needs to be basically stable under high temperature and have excellent creep resistance.

    The above three points are just the basic requirements for advanced missile body materials. The remaining injection friction coefficient must be small; have certain thermal conductivity and electrical conductivity; have good machinability, etc. These requirements are no more than the general material requirements for aircraft engines.  How much less.

    If not, why are there only a few countries in the world that can do long-range missiles? Although other countries are trying their best to catch up, they are always a little behind the top few no matter how hard they try. This is the fundamental reason.

    For the same projectile, several big countries use high-performance alloy materials, while other chasing countries use alloy steel. This alone means that the payload and range of the chasing country will be greatly reduced under the same thrust. As for other countries,  The support structure is too complex, the fuel tank is not well sealed, and the loaded warhead has poor heat dissipation, which will directly turn the fired missile into a large firecracker.

    Compared with other catching-up countries, the country is only a little bit stronger. After all, there are several leading figures in the country, and the system integration capabilities in aerospace are very strong.

    But compared with the top giants like the United States, there is still a big gap. They can send people into space with the same thrust, but domestically they may only be able to send a little mouse.

    In addition to the gap in technical level, the key reason lies in the materials used in the missiles.

    According to public information, the American Minuteman 3, Trident and other missiles use carbon fiber composite materials, but if the villain really uses carbon fiber composite materials such as T500 and T700 to install them on long-range missiles, then he will really treat the missiles as artillery pieces.  Tossed.

    Because the full name of carbon fiber composite materials such as T700 is carbon fiber resin composite materials, there is no need to say strength, lightness or even yield. However, due to the inherent preparation process, the heat resistance of carbon fiber resin composite materials is not good. In other words, the missile is  During rapid ascent, the heat generated by friction with the air is enough to burn through the shell made of such materials.

    This is why fighter jets generally do not install carbon fiber resin composite materials on secondary components, because at supersonic speeds, the heat generated by the body is also terrifying.

    But if you point your finger at Americans and say, "You are fooling me," Americans will definitely respond. That's because you are ignorant.

    Is it a carbon fiber composite material? Yes, but it is not a carbon fiber resin composite material, but a carbon fiber reinforced aluminum matrix composite material.

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