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Chapter 893 H-ZB800 Carbon Fiber

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    ¡°Carbon fiber composite fan blades?¡±

    Djokovic looked at Liu Cong suspiciously, almost writing the words "I don't believe it" on his forehead. Not only Djokovic, but also other executives and experts in the Russian aviation industry had a clue.  Everyone was deeply suspicious of Liu Cong's words.

    It¡¯s no wonder these old guys reacted like this. You must know that the only country in the world that can apply carbon fiber composite materials to turbofan engine fan blades is the United States.

    That is the General ge-90 high-bypass ratio high-thrust turbofan engine, which can be called the king of power. The thrust of a single unit reaches 56.9 tons, thus sounding the death knell of four-engine large passenger aircraft, because Boeing equipped with two ge-90  The 777 can easily carry out intercontinental flights of tens of thousands of kilometers, and its fuel economy and maintainability have been greatly improved. Compared with this, four-engine passenger aircraft such as the Boeing 747 are a bit useless.

    Of course, this is only one aspect of the ge-90's revolution in civil aviation. The reason why it has reached this level is naturally inseparable from the various black technologies that GM has invested in it. One of them is the first-stage fan upper fan made of carbon fiber.  Blades, the reason why ge-90 can crush competitors such as Rolls-Royce and Pratt & Whitney and ascend to the throne of aero-engines is largely due to this epoch-making carbon fiber fan blade.

    Although carbon fiber composite materials have been widely used in aviation and aerospace, some important components still cannot be replaced by carbon fiber composite materials, including fan blades of turbofan engines.

    Because most carbon fiber composite materials are strong enough but have very different toughness compared to metal materials such as titanium alloys, this results in carbon fiber composite materials never being able to pass the key indicator of bird impact. Often, after a bird strikes, the carbon fiber composite fan blades  completely shattered, causing the engine to shut down.

    Therefore, most aerospace companies gave up after a few rounds of testing. Only General Motors persisted and finally obtained a carbon fiber composite material with high strength and ultra-high toughness. Based on this, it completely overcomes the impact of carbon fiber on bird impacts.  The shortcomings of weak structural strength at that time opened a new era of aviation development.

    What does it mean that this kind of scorpion daddy is the only one?

    Two words, monopoly.

    If nothing else, it can be seen from the fact that the US Boeing 777 aviation orders are generously awarded to General Motors.

    As for the two competitors, Rolls-Royce and Pratt & Whitney, facing the crushing advantages of ge-90 technology, they naturally know that they cannot make a breakthrough in materials in a short time.

    Seeing that the orders for the new generation of twin-engine wide-body passenger aircraft represented by the Boeing 777 were all being taken away by General Motors, Pratt & Whitney was forced to use its mechanical advantages to develop the first-stage fan and engine compressor.  A complex planetary gear set is designed to reduce the speed of the first-stage fan, thereby controlling the efficiency of the fan blade tip to enter supersonic speed. This almost self-destructive method of reducing efficiency is used to increase the first-stage fan speed.  fan diameter possible.

    Luo Luo was not as ruthless as Pratt & Whitney, but instead sent his traditional performing skills and three-rotor technology. I think back then Luo Luo stepped into this pit and almost lost his life. There is no way he can re-enter the pit this time.  If you don't develop an engine of the same level, you will be squeezed out by GM; if you step in, you may be cheated to death. No matter what, you will die, so you might as well give it a try.

    Strong aerospace giants like Pratt & Whitney and Rolls-Royce are helpless against the tiny fan blade on the GM ge-90, let alone other companies or countries.

    This includes Russia, which has hit rock bottom but still has ambitions.

    A group of Russian aviation people with Djokovic as the core really want to develop a common technical route and replicate the glory of the Soviet era.

    After listening to the impassioned speeches of Djokovic and others, the Moscow authorities became excited and approved 20,000 rubles as funding with a stroke of a pen.

    Yes, it¡¯s only 20,000 rubles, not 20,000 US dollars. The Russian economy has been slapped on the floor by all kinds of friction and blood-drawing by the West. The ruble has depreciated to the point where it is almost worthless. Let alone 20,000 rubles.  The cutting-edge carbon fiber composite fan blades are too hard to wipe your butt with toilet paper.

    What's more, even if it's not rubles but US dollars, the amount of 20,000 is not enough.

    Because of this, Djokovic was helpless at the time, but he did not feel the sadness of a country without a general. After all, the United States was the only country in the world with such capabilities, and it was a good match for the only superpower to have the only technology.

    It¡¯s not that Russia can¡¯t do it, it¡¯s that the reforms at this stage have not been completed.

    Just like the serf reform in the 18th century and the industrialization in the 1930s, Russia has experienced long-lasting pain. But once the pain is over, the fighting nation is like a polar bear, slapping down all obstacles.

    The result is thisSomething that even the two major aerospace giants and the former superpowers with relatively good foundations couldn't figure out, China's Tengfei Jitu said they actually did it.

    After hearing this, Djokovic felt like a university professor listening to kindergarten children calculate Gottbach's conjecture in one fell swoop. The strong sense of absurdity made him feel what magic realism is.

    It¡¯s already good that China can make fourth-generation fan blades, and it has also made carbon fiber composite blades. Don¡¯t insult the term carbon fiber composite material, okay? You must know that this thing is divided into three, six, and nine grades just like other things.  Only the United States has that kind of high-tenacity, high-strength carbon fiber. How can China, a developing country that is still struggling to catch up with modernization, have this ability?

    Of course it is possible to daydream.

    Liu Cong learned the manufacturing technology of engine fan blades from Master Ju in his early years. Later, he was sent by Zhuang Jianye to study at Beihang University. After that, he returned to Tengfei Group and studied management with Liu Chun. It was not until Liu Chun retired that Liu Cong came from behind the scenes to the stage.  .

    To put it bluntly, Liu Cong was blackmailed from the inside out by the two most cunning old guys in the 23rd Factory. In addition, Zhuang Jianye, a shameless "role model", was put there.  Liu Cong looked up to him every day. Liu Cong, who looked innocent on the surface, was actually very sinister inside.

    Because of this, when Djokovic raised his butt, Liu Cong knew how much shit these old guys could poop.

    "At this moment, seeing the unpredictable faces of the old men, if you don't know what they are thinking, then he won't have to tell everyone that he is the direct descendant of the three scheming giants of the 23rd Factory.

    So he didn¡¯t answer directly, but just waved his hand: ¡°It¡¯s not far from the engine test site anyway, let¡¯s go and have a look.¡±

    After saying that, he raised his legs and walked towards the testing ground. No matter what Djokovic was thinking, they couldn't stop when his master started to move, and they followed him one after another.

    Soon the group came to the No. 1 test bench of the test site and went up the elevator. They happened to see a wd-60ml turbofan engine being hoisted on the facility equipment. Liu Cong didn't waste any time and pointed to the engine fan that had stopped running.  Blade: "Here~~ That's the carbon fiber composite blade we produced using our own t-zb800 grade carbon fiber!"

    Djokovic and others followed the sound and only took a glance. The group of people's eyes immediately widened, and they were so shocked that they could not say a word.

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