Take Off My Aviation Era

As Zhuang Jianye said, he stuffed the huge guide blades into the hands of the person in charge of the aviation manufacturing factory in front of him. The person in charge of the aviation manufacturing factory was really surprised, because the guide blades looked quite small and fragmented. The broken pieces together are half the size of a small arm, and this thing is to directly face the so-called strongest high temperature in front of the turbine between the combustion chamber and the turbine. Generally, nickel-based alloys are used with complex cooling annular channels. Manufactured, the weight is not as light as ordinary aviation components.

So when Zhuang Jianye suddenly came over, he really shocked the person in charge of the aviation manufacturing plant. If one fails to catch it, who will fall on the ground?

If it’s just him and Zhuang Jianye, it doesn’t matter. If you can’t catch it, you won’t be able to catch it. Anyway, this thing is not his. The problem is that at this moment, the chief teacher, deputy directors, and many other people in charge of brother factories are here. The person in charge of the aviation manufacturing plant had to maintain a certain image no matter how bad he was, so he was really taken aback.

But as a result, when he really received his hand, instead of being angry at Zhuang Jianye's reckless behavior, the head of the Hangfa Manufacturing Factory held the huge guide blade with one hand and his eyes were inconceivable, and then his lips trembled twice: "How can I be so light? ?"

Yes, in the past, guide vanes made of complete metals such as nickel-based alloys are not said to be heavier than steel of the same volume as steel, but they are not much lighter.

Even if you admit that you can easily pick it up, you still have to use some strength to support it.

But at this moment, although the shape and volume of the guide vane in hand are no different from the previous ones, the overall weight is at least one-third lighter than the conventional guide vane made of nickel-based alloy.

It is important to know that the main direction of the factory where the head of the aviation manufacturing plant holding the guide blades is located is the core thermal components of aero engines such as guide blades and turbine blades, because he is not only aware of the weight of such components. Attentive and extremely sensitive.

As soon as you get started, you know that the products of Ascendas Group are much lighter than those of their factories.

In the case of the same size and shape, it can be so portable. What does it mean?

One is to make a decisive breakthrough in materials, and the second is to achieve subversive innovation in processing technology, neither of which will work.

However, before the person in charge of the aviation development factory recovered from the handy guide vane in his hand, another person in charge of the aviation development factory on the side snatched the guide vane and looked at it over and over again. After a while, this was not a big deal. He even called his assistant over, took out the magnifying glass he carried and looked at the surface carefully for a while, then raised his head to look at Zhuang Jianye and asked in disbelief: "You are actually on this blade. There is no cooling hole? The material itself is hard and resistant? Even ceramic materials can have a strong anti-high temperature effect, but in the atmospheric environment, the oxidation resistance of ceramic materials is very poor, and its own ductility is even worse. The combination of the two makes the strength not as good as different low-carbon steels. At the same time, the heat flow just ejected from the combustion chamber is fierce and unstable, and the impact is very strong. How did you do it? Not only that..."

I don’t know if the person in charge of the aviation development plant is really surprised or curious, holding the guide blades at Zhuang Jianye and asking a series of questions, all the other people in charge of the aviation development plant around him are bewildered. But none of them came out to stop them, including the deputy director and the head of the aviation manufacturing plant who was rigid with Zhuang Jianye.

The reason is simple, because they also discovered that there are really no complicated film cooling holes on this guide vane.

When I checked the WD-66 turbofan engine with a large bypass ratio, this detail has not been noticed by them. It is not that they did not look carefully, but that this kind of film cooling hole itself is extremely small, and the high temperature when the aero engine is running Different degrees of oxidation reactions will occur during the impact and burning process, resulting in black and black on the surface of the blade, and it is very normal to not notice the location of the air film pores very slowly.

But now, a blade that Zhuang Jianye took out is brand new, without the slightest trace of burning or oxidation, it will naturally be discovered by those veterans in the field of aviation.

But because of this, apart from Zhuang Jianye and the Chief Executive Officer, one of the people present is counted as one. No one is not shocked. The guide vane facing the temperature in front of the turbine is not provided with a film cooling hole, directly using the material itself. Eat high temperatures above 1300 degrees Celsius.

Such a simple and rude approach, let alone the deputy director and others, is unbelievable. The core aviation engineers of the three major aviation development giants of General Motors, Pratt & Whitney, and Rolls-Royce will also feel their scalp numb when they meet.

To what extent does the material itself have the heat resistance to dare to eat the absolute high temperature before the turbine so hard?

It should be known that the internal structure of the nickel-based alloy is no longer stable at 1100 degrees Celsius. If this is not the case, it is impossible for aeronautical engineers to develop a cooling structure that is as complicated as a film cooling hole, but even so, the temperature is at most It will be increased to 1300 degrees Celsius, no matter how high it is, there is no way.

Therefore, in addition to further tapping the potential of nickel-based alloy single crystal structure materials, the engineers of the aeronautical development team have tried their best to achieve the ultimate in this single crystal structure, and what is left is to develop heat-resistant coating materials for nickel-based alloys. The leaves are coated with a layer of skin.

However, whether it is digging into the single crystal structure of the material or applying a layer of skin, the focus is on the nickel-based alloy itself.

In this regard, the aviation powers of the United States, Europe and Russia are leading the world, but China is far behind. There is no way that these aviation powers have accumulated more than half a century in this aspect, and the accumulated experience is exploding. keep going.

Of course, China also wants to catch up in this regard. However, the domestic aviation industry started late, and the real rationalization will have to wait until the first flight of the 10th project, which is more than 40 years behind the aviation power.

However, nickel-based alloys are something that is extremely empirical, especially the single crystal structure, the ratio of various metal elements, the smelting temperature, the heat treatment procedure, etc., which can not be solved overnight. It is necessary. The best solution has been summed up by tens of millions of trials over decades.

If not, how can those aviation powers dare to disclose the latest nickel-based alloy metallographic data as research results?

It's not clear that the doorway is here. Even if other countries know the metallographic data, they can't make similar products, because the key to this kind of things is not the data, but the entire production process.

Of course, other domestic aviation manufacturers know this cruel reality, but they have no way of doing it. If they want to chase it, it will take 20 to 30 years at the earliest. In other words, people in this area cannot see hope. ~www.readwn.com~ If there is no hope, there will be no achievements. If there is no achievement, then there will be no political achievements. They are all in this position, and they are in charge of cadres. Who doesn't want to leave a strong mark in the future history of the factory?

But do you have that ability, what should I do?

So many factories have paid attention to Russia or Ukraine, using their stronger than domestic aviation heating component manufacturing technology to do OEM for domestic aviation manufacturers, and then get the domestic label as a "domestic" installed machine. use.

Maozi is willing to make money, but the problem is that Maozi’s quality control is too poor, and the business reputation is also stretched, which makes several domestic aviation companies desperate, but they are hard to tell. Russia and Ukraine only look at money. The United States and Europe have to die for money, so even if the hairy people are all disgusting and fussed, the domestic aviation industry will kill them and swallow them in their stomachs.

But now, Ascendas Group seems to have found another solution to move forward more broadly outside of nickel-based alloys. The heads of the several aviation development plants present have begun to live up to their hearts. Now that they are fed up with the old-fashioned spirit, can you? Let's also make an import substitution, and use the products of Ascendas Group?

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