Take Off My Aviation Era

"Chief, you see what you said, but it actually used the word'Ya'. It is too worthy of our Ascendas Group. We really want to upgrade, but it is so easy. The most is based on H-ZB800 and NB-2800X. The above has been slightly improved."

　　Zhuang Jianye smiled very modestly, speaking more modestly. The problem is that the head of the headquarters does not eat this set at all. He squinted his eyes and issued a soul torture to Zhuang Jianye: "Do you want funding?"

　　 "Yes!" Zhuang Jianye did not hesitate.

　　 "Then tell me honestly!" The head of the headquarters was silent.

"In fact, it’s nothing. The carbon fiber composite material of the H-ZB1000 brand has twice the strength and toughness of the H-ZB800, reaching the American F-22 air inlet lip, wing edge, vertical tail leading edge and other easy The material properties at the key location where shock wave resistance is generated..."

Seeing that the head of the headquarters is not on the set, Zhuang Jianye can only explain it honestly. In fact, advanced stealth fighters such as F-22 and B-2, although the manufacturer claims to use how many carbon fiber composite materials, what proportion How much, the advanced nature is self-evident, the words are more good, and even the decimal point of the proportion is more accurate than the report submitted to the Ministry of Defense.

　　 But if anyone follows these words to actually build a stealth plane by themselves, he has to touch the bag.

　　The reason is very simple. It is true that the Americans use carbon fiber composite materials for stealth fighters. The problem is that people don’t use one type, but four.

　　 Because depending on the aerodynamic composition of the aircraft in different states and the actual forces on the airframe, the overall cost must be selected in terms of materials.

　　 This is like the production of automobiles. The idea of ​​using different materials such as steel for body frame, aluminum alloy for doors and other plates, and high-strength alloy steel for chassis is the same.

　　 F-22, as the only next-generation fighter in the world, also applies this idea. The traditional T500 and T800 carbon fiber composite materials are used in the manufacture of horizontal tails or vertical tail panels.

　　The wing, back skin and some structural components are made of carbon fiber composite material with ultra-high strength and ultra-high toughness equivalent to H-ZB800.

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

After all, the most typical performance indicator on next-generation fighter jets like F-22 is supersonic cruise. In the process of transonic speed, the windward side of the aircraft will produce extremely strong shock wave resistance. This shock wave resistance is not only powerful, And it will produce great heat to burn key parts of the body.

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

The problem is that there is nothing wrong with titanium alloy on the third-generation aircraft. It will cause big problems if it is used rashly on the next-generation fighters. The reason is simple. Another key indicator of the next-generation fighters is radar stealth, and titanium alloy is used as a metal material. , Radar reflectivity is super strong.

　　Because of this, titanium alloy is used as the structural frame of the next-generation fighter, and the internal truss beams are fine. Anyway, they are hidden inside the fuselage; but it is not suitable to be exposed as a skin.

　　Unless the ground crew is willing to endure the maintenance work that changes to the explosion, it is almost the same to spend 100 hours on the whole body for every hour of flight.

Therefore, the ideal material for the fuselage skin and other components of the next-generation fighter aircraft like the F-22 is still carbon fiber composite material. In addition to the low radar reflectivity, the subtle reflection of radar waves can also be achieved through multi-layer weaving and other technological means. The "absorption" effect.

　　 Coupled with the stealth design on the aerodynamic shape and the blessing of the wave-absorbing coating, the overall radar stealth capability instantly reached a new level.

　　 However, although carbon fiber composite materials are good, they have a shortcoming, that is, the heat resistance is particularly poor. This is not because of the carbon fiber composite material itself, but because of the characteristics of the epoxy resin that connects the carbon fiber.

　　Under normal temperature, the epoxy resin used for connection curing will not have any problems, but once the temperature reaches a certain value, the epoxy resin will quickly decompose under the action of high temperature, which will cause the carbon fiber parts to quickly fail until they disintegrate.

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

　　 The problem is that the third-generation aircraft can be ignored, and the next-generation combat aircraft must be considered, otherwise how to achieve radar stealth?

　　 The Americans are clearly at the forefront of the world in this regard. Both the B-2 and the F-22 have used practical actions to prove that the Americans have achieved industrial-grade mass production in this regard.

Of course, Ascendas Group cannot obtain related core technologies from the United States. Let alone Ascendas Group, British Aerospace Corporation, which wears a pair of pants with the United States, is also rejected by the United States. Therefore, Ascendas Group’s H-ZB1000 is naturally used. Is its own core technology.

　　"The Americans have a developed chemical industry, so they can work **** epoxy resins to make epoxy resins that can withstand high temperatures and oxidation, and then use automatic laying machines to complete industrial production.

We do not have such good conditions as the Americans and can only find another way. Therefore, 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 production are indeed poor in high temperature oxidation resistance, Not for nothing.

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

The other is the H-ZB1000 carbon fiber composite material with ultra-high strength, ultra-high toughness and strong heat resistance. We disagree with the previous carbon fiber materials ~www.readwn.com~In the internal fiber filaments, we use part of the ceramic matrix Composite material technology incorporates a part of ceramic fiber, a new type of fiber material generated after curing with carbon fiber.

Then through our specially developed NB-2800X composite fiber 3D weaving equipment, weave it into a material that meets the specifications, and then shape it at a high temperature in a high-temperature solidification furnace. The resulting material meets the requirements. Through our test, the helicopter propeller The twisting heat generated when the leaves are deflected will not have any effect on our H-ZB1000..."

　　Zhuang Jianye talked about the new material in detail, but the head of the headquarters frowned more and more, until finally he couldn't help reaching out and interrupting: "That's your summary of the failure of the ‘returnable’ satellite?"

　　 "There is something else, that is... it's just that there is some difficulty in funding. Chief, you see..."

"I..." The head of the headquarters was so angry that he couldn't laugh or cry. He originally said that a lot of people are waiting for him, so he touched Zhuang Jianye's forehead: "You Zhuang Jianye can be a little reserved when you see money? It's also a big one. The person in charge of the company, is it okay to have some face?"

　　Zhuang Jianye quickly nodded: "Okay, but my face has already been turned over to the country a few years ago. Or, do you think this is okay for the chief? Will you approve my face and funding together this time?"

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