My Strength Does Not Allow Me to Low-key

"These pipes are actually the oil pipes on the aircraft's aviation development. They are made of nickel-cobalt alloy. They are very difficult to use with ordinary processing methods. If they are welded, they cannot meet the requirements very well in terms of strength, so... "

　　 The leader who had just spoken to the other side, saw Xiao Feng holding a few pipes in silence, and explained it to them.

　　 In fact, even if he didn't say anything, Xiao Feng guessed what kind of tube it was.

　　Because when he was in Xinghuo Technology, he had seen that when engineers designed and produced hydraulic torque converters, they had produced such tubes.

　　 However, the tubes produced by Xinghuo Technology at that time were smaller and thinner than these, because they were installed on the hydraulic gearbox, so naturally they could not be compared with those installed on the aircraft engine.

　　 So it is naturally simpler, but the shape and working principle are similar.

　　In fact, this kind of oil pipe is also very common on automobile engines, but they are generally thinner and not as demanding as on aviation engines.

　　As an interstellar warrior, and a half-hearted military fan, plus when he was in another world before, he often flew helicopters to fight.

　　Sometimes he has to maintain the helicopter by himself, so he has some understanding of the aircraft's aviation.

　　In the engine of an airplane, especially the outer part, in fact, we often see many such tubes.

　　 However, there are two types of wire tubes on general aviation aircraft, one is a hard tube and the other is a hose.

　　 Most of the hoses are made of tetrafluoroethylene, and the outer layer is wrapped with a layer of fireproof material. The assembly performance is very good, but the disadvantage is that the strength is very poor.

　　 can only be used in the wire tube wrapped by the electronic system.

　　 While there are many fuel supply pipelines on the flight of the aircraft, this kind of hose cannot be used.

　　For example, fuel supply pipes that attack fuel, or lubricating oil pipes that attack lubricating oil. These are pipelines that often work in high-temperature and high-pressure environments.

　　 For these pipelines, hard pipes made of metal materials must be used.

　　Although the assembly performance of this kind of hard tube is very poor, you must use this kind of tube because of special work requirements.

　　 In order to better meet the working conditions of these pipelines, this has very demanding requirements for metal processing and equipment requirements.

　　 As for the hydraulic pipes used in the hydraulic system and the air supply pipes used in the bleed air system, let alone.

　　Because it is necessary to work in an ultra-high pressure environment, it is impossible to use a hose, so this special processed metal pipe can only be used.

　　 So we will shout a lot of these metal pipes arranged side by side on the periphery of the aircraft.

　　The thin ones have the thickness of fingers, and the thick ones can have the thickness of carrots, and they are all irregular geometric shapes, arranged side by side on the periphery of the aircraft.

　　The main function of these pipelines is to supply fuel to the engine when the aircraft is working.

　　 Because aviation needs to consume a lot of fuel, considering the fuel economy, aviation designers will design a set of special fuel injectors and install a set of hydraulic pumps.

　　 Before jet fuel is injected into the combustion chamber, the fuel is fully atomized in order to achieve the best combustion economy and ensure the flight range of the aircraft.

　　 Therefore, this places very high requirements on the strength of the fuel supply pipe and the fuel nozzle.

　　 In addition, because fighter jets often make various violent fighting actions during flight.

　　In order to return the fuel, the general aviation engine will design a special oil return circuit, and this kind of oil circuit is the half-return-shaped pipeline we often see.

　　 There is also a lubricating oil pipe that attacks lubricating oil, and it is the same.

　　 It is necessary to ensure that the aircraft can operate normally at an altitude of tens of thousands of meters and under extreme cold conditions, and dry grinding conditions cannot occur.

　　 Then it is necessary to ensure that the oil pipe will not be frozen, and that it can work stably in a high-pressure environment.

　　The hydraulic lines of other hydraulic systems are even more so, because when the engine is working, it controls the vector nozzle at the back.

　　Adjust the direction of the air jet, so the requirements on the hydraulic pipe will be very high.

　　 can even be said to be the highest in the entire system.

　　 As for the air supply pipe, let alone, it is necessary to ensure that a large amount of air can be continuously sent into the combustion chamber or diverted in the duct when the aircraft is working.

　　 So it is precisely because of these special work requirements that it is difficult to process these pipes.

　　Different from the requirements of the pipes on the car and the transmission, the pipes may only be able to withstand 1.5 or twice the pressure strength of the atmospheric pressure.

　　 And the pipelines on these aircraft are required to be able to withstand at least a dozen or even dozens of atmospheres and still work normally.

　　 This can be said to pose a very extreme challenge for the processing of these pipes.

　　Moreover, the processing technology of this main pipeline is completely different from ordinary steel pipes.

　　 The ordinary steel pipes we see on the market are basically processed from a piece of iron sheet.

　　 These plates are first sent to the factory for selection and cutting, and then put in the machine to be flattened.

　　 After that, the coffins were rolled up with rollers, and finally welded at the place where the two sides were connected.

　　 After the welding is completed, the burrs are removed, and after grinding, basically a steel pipe is completed.

　　 If you need to fold the light pipe into different shapes, you can also take it to the steel pipe bending machine and bend it directly.

　　 However, if these pipes are produced according to such a process, if these pipes are used on the aircraft, it will inevitably cause the weld to break in the harsh working environment.

　　 will cause serious air accidents.

　　 We have successfully developed the J20 long ago, but the production capacity has not been able to increase.

　　According to reliable sources, the annual output of our J20 each year was only 10-12.

　　Why, the output has not been able to increase?

　　 is because the production difficulty of Hangfa is too great.

　　 The earliest batch of J20s, we used Teddy Bear’s avionics. When this fighter came out that year, the old American Secretary of Defense was stunned.

　　 But after a few years, people figured out the situation on our side.

　　 It turns out that we have always wanted to replace this aircraft with our turbofan 15 engine, because the engine sold to us by Teddy Bear has always had a slightly worse performance.

　　 The turbofan 15 has difficulties in production, although we have obtained a batch of high-precision five-axis linkage machine tools from a neutral country in Western Europe.

　　 finally solved the problem of machining accuracy, and through the 3D printing equipment developed by a domestic university, it also bypassed the production threshold of some difficult parts of the aviation development.

　　 But in the end, the blades of the internal rotor of the engine, as well as the external pipeline production, have been restricted.

　　 The rotor inside the Hangfa is actually equivalent to a small gas turbine.

　　A rotor main shaft, and this main shaft is covered with various blades, and each blade has a very irregular curved surface shape.

The reason why 　　 is designed is to rotate and compress the air in a very small space, and then send it to the combustion chamber.

　　 After being fully burned, ionized airflow is ejected, giving the aircraft super excitement performance.

　　 The difficulty of producing the rotor is a fantasy for China.

　　 Before, we have also gotten some Air China launches, and we also looked at the situation of the rotor inside.

　　 To be honest, we only knew what happened at that time, but didn't know why.

　　 I just got it, oh, it turns out that the Hangfa looks like this.

　　 But why does it grow like this or how it grows like this, we don't know at all.

　　Because it involves too much knowledge of aerodynamics, and since decades ago, the country's most powerful batch of two bombs and one star champions have fallen one after another.

　　 There is a serious gap in aerodynamics in China.

　　 This situation has not gradually improved until the last ten years.

　　 After many wind tunnel experiments, our scientists finally understood why they arranged the blades in this way.

　　 And we also have our own idea of ​​designing and arranging the blades.

　　 But the problem comes again, that is, even if you have your own ideas, how do you get the blades of your turbofan to the main shaft of the rotor?

　　 Facing this problem, we sacrificed a lot of people, and finally got a little clue from the US.

　　 It turned out that the Americans used a technology similar to the growth of single crystal silicon to ‘long’ the processed cavity blades on the rotor.

　　 can actually be understood as an alternative welding method, but this method is very difficult, and currently only the United States has mastered it in the world.

　　 After the welding is successful, they will also use a particle gas sedimentation technology to coat the entire system.

　　 Even if the rotor is completed after coating, the hardness and wear resistance are unparalleled.

　　 It is precisely because of this that the U.S. fighter aircraft's flight ~www.ltnovel.com~ will far surpass the bears in terms of lifespan, performance, and reliability.

　　 As for our aviation development, it is far from the standards of the above two companies.

　　 As for Mao Xiong's voyage, it was relatively simple and rude when it was made.

　　 They will produce a hyperbaric chamber, and then let workers wear special compression suits and use a very special welding technique.

　　 Inside the hyperbaric chamber, the blades are welded to the rotor.

　　 This is also the information we obtained from those aircraft design experts in Ukraine after we emptied the property in Ukraine.

　　 It is with this information that we have made a breakthrough in the development and production of turbofan 15.

　　 But generally speaking, because the production of certain key parts is too difficult, and we lack relevant equipment, the production capacity has not been able to increase.

　　 And today the general asked Xiao Feng and the others whether their industrial robot could produce such a pipe.

　　 is actually a test!

　　 At this time, after Xiao Feng turned the tube in his hand, the smile on his face was getting bigger and bigger.

That's it? I thought it was such a big deal!

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