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Chapter 1210: All Little Japan¡¯s equipment is fake

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    It¡¯s no wonder that several heads of aviation engine manufacturing plants present had such thoughts. In fact, there is a big gap between China¡¯s smelting and preparation of nickel-based alloys and the European and American aviation powers.

    Not to mention them, the Ascendas Group, which prides itself on domestic materials, has developed two new aviation metal materials, x and y, based on nickel-based alloys and doped with rhenium and other rare high-temperature metal elements. Even though they have achieved good results,  progress, but it will take at least another five years to truly mature and put it into use.

    After all, there is a big difference between laboratory preparation and large-scale industrial production. The two new aerospace metal materials x and y are going to be used in aero-engines. As industrial products, they must be mass-produced.  If you create a few samples in the laboratory and create a few limited edition products, they are not industrial products but luxury goods.

    "At present, Ascendas Group's two new aviation metal material cards x and y are stuck in large-scale industrial production.

    Even Ascendas Group is like this, let alone other aircraft engine factories, it can only be even worse, otherwise it will not be possible to spend money to buy so-called "domestic" goods from Russia and Ukraine.

    Because of this, when they knew that there was a brand-new product that could surpass the unimproved nickel-based alloy materials and achieve a temperature jump in front of the aero-engine turbine, the heads of several aircraft engine manufacturing plants followed the innocent little boy who was bathing in the goddess.  The same thing, not to say that the blood is so exaggerated, but it is also extremely exciting.

    It's just excitement, but the people in charge of these aircraft engine plants are not fools. No matter how good the Ascendas Group's products are, they still need to find out whether they can be industrially produced on a large scale. Otherwise, if they want to make x and y alloys, they are advanced, but they are not fake.  For companies like them that are eager to convert benefits, it is almost like taking off their pants and farting, and it is of no use at all.

    Therefore, the person in charge of the aircraft engine plant who asked a series of questions just now was really surprised, but besides being surprised, he was also asking Zhuang Jianye in another way about the quality of the high-pressure turbine guide blades made of ZBF-600 material.  Feasibility, let alone a customized model made in some laboratory, that would be meaningless!

    Zhuang Jianye is a wild fox who can be treated as a monkey spirit by attaching his hair to it. Naturally, he noticed all the changes in the demeanor of the people around him, so he didn't waste any time and took another one from the staff next to him.  guide blade, and then use hands to take out two exquisitely crafted pins from the bottom of the upper and lower outer support plates that have the same carpentry mortise and tenon structure. The next moment, with a slight shake of the hand, everyone was stunned and pulled out the guide blade and the blade.  The shape is exactly the same and has a metal core with dense cooling holes.

    At the same time, Zhuang Jianye spoke slowly: "Let me first answer how our guide blades solve the problem of insufficient structural strength and ductility of ceramic materials"

    As he spoke, he pointed to the metal core that was mostly taken out: "Our method is very simple, that is to add a set of metal skeletons to the ceramic material, which is somewhat similar to the honeycomb core in honeycomb materials commonly used in the aviation industry.  The role of supporting the ceramic blade shell.

    However, due to the characteristics of ceramic materials and the harsh working environment between the aero-engine combustion chamber and the high-pressure turbine, a simple fixed honeycomb structure is not enough to reduce the impact of high-pressure gas turbulence, and needs to offset the greater impact potential energy. According to our 2.5-generation core  Taking the engine's 17MW power as an example, the temperature in front of the turbine reaches 1728K, which is 1454 degrees Celsius, and the impact of the high-temperature heat flow in the combustion chamber reaches 9.05x106 MPa.

    Such a powerful impact cannot be supported by ordinary honeycomb structures. Therefore, we add a layer of metal wave springs on the outside of the metal core. Therefore, when the outer ceramic blades are strongly impacted by high-temperature heat flow, the wave springs can reduce the internal stress.  The potential energy is finally supported by the metal core to withstand the damage caused by the high-temperature jet to the entire blade.  "

    As Zhuang Jianye spoke, he pulled out a stack of metal flakes that were gathered together like origami attached to the outer layer of the metal core, and then expanded and contracted them back and forth to show it to everyone present, and then said: "This is like an ancient  Just like the heavy armored soldiers, the ceramic material is the armor with extremely high defense, the wave spring is the muscle and soft tissue, and the innermost metal core is the supporting skeleton.

    Only the effective synergy of the three can allow soldiers to perform at their best. The same is true for our guide blades. Thanks to the organic combination of three different components, our guide blades' ability to withstand high temperatures and pressures has been doubled.  Together with the cooling airflow, it is also reduced by 25% compared with the previous second-generation core machine, thus improving the efficiency of turbine work"

    Zhuang Jianye introduced everything in detail, and several interested persons in charge of the aircraft engine factory listened attentively. However, one person in charge still asked in confusion before Zhuang Jianye finished speaking: "Mr. Zhuang, according to what you just said,  It is said that the internal metal core and wave spring should be made of nickel-based alloy. I wonder if the requirements for this nickel-based alloy are high?"

    &nbsp"Not high!" Zhuang Jianye waved his hand and responded with a smile: "It's not high at all. Just use the nickel-based alloy material on our turbojet 13 engine, which is the second-generation domestic nickel-based alloy. It's not used at all.  What single crystal material is used? After all, the worst high temperatures are blocked by ceramic materials. Naturally, a lot of such good materials are used to support it internally. Otherwise, what is the use of making this set of ceramic armor?

    Isn¡¯t it just to get around the bottleneck in our own metallurgical field and reduce costs as much as possible, so leaders please be careful about this. As long as we have done the turbojet 13 matching, there are second-generation nickel-based alloys.  If you have experience in processing and production, it will be no problem to help our Tengfei Group produce some metal cores and wave springs!  "

    After hearing this, the people in charge of the aircraft engine plant who were already quite interested felt their hearts begin to beat rapidly in Dong's chest. This was not because they were interested anymore, but because they could no longer suppress the rhythm of their hearts.

    Turbojet-13 is one of the few domestic aerospace engine projects that can be fully implemented. Many aerospace engine factories have participated in it to a greater or lesser extent, and some even made the second-generation nickel-based alloy thermal components of the turbojet-13.  The designated production and processing unit has considerable experience in processing second-generation nickel-based alloys.

    So I heard that the metal parts inside the guide blade in Zhuang Jianye¡¯s hand are so simple, so why don¡¯t you be eager to grab it and try it?

    You must know that this is a core component of a world-class aerospace engine. Being able to participate in it is equivalent to competing with the advanced products of the world¡¯s aerospace giants. Let¡¯s not talk about how many domestic gaps will be filled, nor how many advanced patents can be obtained.  The fact that it stands shoulder to shoulder with the world's aerospace giants is enough for these managers to brag in their year-end reports.

    And another form of this kind of boasting is the political achievements that haunt them.

    They suppressed Ascendas Group, grabbed projects, poached employees, and even did the disgusting thing of buying "domestic products" from Russia. Why?  It's not just for the word "political achievements".

    Now, Zhuang Jianye has put something in front of them that can easily improve his political performance. If they don't catch it, it will be unbearable!

    However, just when these people in charge began to think about how to get the processing and production of the guide blade's metal core and wave spring into their own factory, Zhuang Jianye's next words made the people in charge who had just thought about this in their hearts.  It was a lot cooler:

    "By the way, I almost forgot, don't use Japanese equipment to process this set of metal cores and wave springs. None of those junk things can meet the accuracy requirements. They are all rip-offs!"

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