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Chapter 1023 My face has been handed over to the state

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    "Chief, look at what you said, you even used the word 'and'. You think so highly of our Ascendas Group. We really want to upgrade, but it's not that easy. At most, it's based on h-zb800 and nb-2800x  It¡¯s just a slight improvement.¡±

    Zhuang Jianye smiled modestly and said even more modestly. The problem is that the head of the headquarters did not accept this trick at all. He narrowed his eyes and asked Zhuang Jianye a soul torture: "Do you want funds?"

    "Think!" Zhuang Jianye did not hesitate.

    "Then tell the truth!" the head of the headquarters said in a bad tone.

    "Actually, it's nothing. It's just that the strength and toughness of h-zb1000 brand carbon fiber composite materials are twice as high as h-zb800, reaching the level of the American F-22 air inlet lip, wing edge, vertical fin leading edge and other easily  Material properties at key locations that create shock drag"

    Seeing that the head of the headquarters was not convinced, Zhuang Jianye could only explain honestly. In fact, even though the manufacturers of advanced stealth fighter jets such as the F-22 and B-2 claimed that they use carbon fiber composite materials in a certain proportion,  How much, the advanced nature is self-evident, and the words are even more good. Even the decimal point of the proportion is more accurate than the report submitted to the Ministry of National Defense.

    But if anyone follows these words and actually builds a stealth aircraft by himself, he will have to touch the package at one end.

    The reason is very simple. It is true that Americans use carbon fiber composite materials in their stealth fighters. The problem is that they use not one type, but four types.

    Because according to the actual aerodynamic composition of the aircraft in different states, the actual stress on various parts of the body, and the comprehensive cost situation, there must be some choices in materials.

    This is like producing a car. The idea of ??using different materials such as steel for the body frame, aluminum alloy for the door and other panels, and high-strength alloy steel for the chassis is the same.

    The f-22, as the only next-generation fighter jet in the world, also applies this idea. The traditional t500 and t800 carbon fiber composite materials are used in the manufacture of horizontal tail or vertical tail panels.

    The wings, back skin and some structural parts are made of ultra-high strength and ultra-high toughness carbon fiber composite materials comparable to those of h-zb800.

    However, neither T500, T800 nor H-ZB800 can reflect the advancement of F-22, because these three types of carbon fiber composite materials still lack a key indicator, which is super heat resistance.

    After all, the most typical performance indicator for next-generation fighter jets like the F-22 is supersonic cruise. During transonic speed, the windward side of the aircraft will produce extremely strong shock wave resistance. This shock wave resistance is not only powerful, but also  It will also produce huge amounts of heat and burn key parts of the body.

    In order to reduce the effect of shock wave resistance, the technical route adopted in the past is generally to use titanium alloy as an ideal material to offset such key forces.

    The problem is that titanium alloys have no problems at all on third-generation aircraft, but if they are used rashly on next-generation fighters, big problems will arise. The reason is very simple. Another key indicator of next-generation fighters is radar stealth, and titanium alloys are metal materials.  , the radar reflectivity is super strong.

    Because of this, titanium alloy is used as the structural frame of the next-generation fighter jet, and there is no problem with the internal trusses. They are hidden inside the body anyway; but it is not suitable to be exposed as a skin.

    Unless the ground crew is willing to endure the maintenance work that changes from state to state and explodes, spending 100 hours applying absorbing paint all over the body for every hour of flight is not much.

    Therefore, the ideal material for the fuselage skin and other components of next-generation fighters like the F-22 is still carbon fiber composite. In addition to low radar reflectivity, it can also achieve subtle reflection of radar waves through multi-layer weaving and other processes, achieving the so-called  The "wave-absorbing" effect.

    Coupled with the stealth design of the aerodynamic shape and the blessing of the wave-absorbing coating, the overall radar stealth capability reaches a new height in an instant.

    However, although carbon fiber composite materials are good, they have one shortcoming, that is, their heat resistance is particularly poor. This is not because of the carbon fiber composite materials themselves, but because of the characteristics of the epoxy resin connecting the carbon fibers.

    Under normal temperatures, there will be no problems with the epoxy resin used for connection and curing. However, once the temperature reaches a certain value, the epoxy resin will rapidly decompose under the action of high temperature, causing the carbon fiber parts to rapidly fail until they disintegrate.

    Because of this, although carbon fiber composite materials were used in third-generation combat aircraft in the past, they were only placed in non-heat-bearing parts. This is the reason.

    The problem is that we don¡¯t care about the third-generation aircraft, but we have to consider the next-generation combat aircraft. Otherwise, how can we achieve radar stealth?

    The Americans are obviously at the forefront of the world in this regard. Whether it is the B-2 or the F-22, they have proven with actual actions that the Americans have achieved industrial-level performance in this regard.??Mass production.

    Of course, Ascendas Group cannot obtain relevant core technologies from the United States. Let alone Ascendas Group, British Aerospace Corporation, which wears a pair of pants in the United States, is also shut out by the United States. Therefore, Ascendas Group's h-zb1000 is naturally used.  It is its own core technology.

    ¡°The Americans have a developed chemical industry, so they can work hard on epoxy resin to make epoxy resin that can withstand high temperatures and resist oxidation, and then use automatic laying machines to complete industrial production.

    We do not have as good conditions as the Americans, so we have to find another way. So when we summarized the reasons for the failure of the last 'returnable' satellite, we found that although the ceramic-based heat-resistant materials we are responsible for producing are indeed poor in high-temperature oxidation resistance, they are not.  It's not all bad.

    So we continued researching on this idea, and we found two broad application paths. One is high-precision cutting-edge ceramic cutting tools, which can be used as fast cutting tools for precision machine tools and special machine tools.

    The other is h-zb1000, a carbon fiber composite material that combines ultra-high strength, ultra-high toughness and extremely heat resistance. Unlike previous carbon fiber materials, we use part of the ceramic matrix composite material technology in the fiber filaments inside h-zb1000.  , a new fiber material that incorporates part of ceramic fiber and solidifies carbon fiber.

    Then we use our specially developed nb-2800x composite fiber 3D weaving equipment to weave it into a material that meets the specifications, and then form it at high temperature in a high-temperature solidification furnace. Only the material that comes out in this way meets the requirements. Through our tests, the helicopter propeller  The twisting heat energy generated when the leaves deflect will not have any impact on our h-zb1000"

    Zhuang Jianye rambled on, describing the new materials in detail, but the head of the headquarters brows jumped more and more as he listened, until finally he couldn't help but reached out and interrupted: "This is your summary of the failure of the 'returnable' satellite?"

    "There are other things, that is there are some difficulties in funding. Look, Chief"

    "I" The head of the headquarters was so angry that he didn't know whether to laugh or cry. It turned out that he said a lot of things waiting for him here, so he tapped Zhuang Jianye's forehead: "Can Zhuang Jianye be more reserved when he sees money? After all, he is also a large-scale enterprise."  Now that you are the person in charge of the company, can you show some face?"

    Zhuang Jianye nodded quickly: "Okay, but my face has been turned over to the state a few years ago. How about, sir, do you think this is okay? Can you approve my face and funds together this time?"

    If you like Soar My Aviation Age, please collect it: Soar My Aviation Age is updated the fastest.  (Remember the website address: www.hlnovel.com
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