Not to mention the Institute of Electronics, their task is difficult. Let's turn our attention back to Changsheng Seiko, the gas turbine development group led by Guo Dong.

Guo Dong and the others used a motor to drive the spindle to study the shape of the turbine blades of a high-pressure compressor fan. It's a successful completion. The next thing to look at is the shape of the low-pressure turbine fan blades.

Here they encountered their first problem. You can no longer use the motor to drive the spindle, now it is the turbofan that drives the spindle, and the whole thing is reversed. They had to find a new way. Another experimental model had to be designed.

After much research, they decided to use a high-power blower to blow the low-pressure fan, which in turn drove the spindle to rotate. The spindle speed and kinetic energy were measured with new experimental equipment. There are two technical parameters in this, the first is the rotational speed and the second is the kinetic energy. The same speed does not mean that the kinetic energy is the same, and in the same way, the same kinetic energy does not mean that the speed is the same. These two technical parameters are to be recorded and compared separately, and it is clear that there must be a balance between speed and kinetic energy.

In addition, the low-pressure turbine turbofan is much more technically demanding than the previous high-pressure compressor fan, so the cost is much higher. There is no room for a spread pool, otherwise the losses will be staggering.

Guo Dong: After research and discussion, the fan self-cooling technology mentioned above will not work. Because they burn coal, there is a lot of dust. This is very different from the work heat of an aviation turbine engine that uses aviation kerosene. Aviation kerosene is followed by exhaust gases, and there is a large amount of dust after coal combustion. As a result, the self-cooling technology of turbine fan blades used in aviation gas turbines does not work in their gas turbines, and it will not take long for them to fail due to clogged air holes. That's definitely not going to work.

Although the Metal Research Institute's ability to resist high temperatures is very strong, it takes more than 2,000 degrees to melt. But not melting does not mean that the alloy will not soften, and the fan has to drive such a large device, so the slightest softening is not good.

At this point, high-temperature alloys are no longer needed. Only some special monocrystalline metal materials are sufficient.

Single crystals have a unique property in that their atomic bonds are regular geometrics. There is a strong binding force between atoms and is easily not affected by external forces and temperature.

The high temperature limit of a single crystal material is not necessarily higher than that of tungsten alloy, but because of its unique atomic tendon, it will not deform easily even if the material is red-hot. That's why the U.S. uses single crystals as fan materials. In addition, the single crystal material also has a very attractive advantage, that is, there is no need to use 10,000 tons of hydraulic press extrusion or 10,000 tons of oil mold hydraulic press mold casting. This is due to the purity of its material and the unique shape of the atomic tendon.

The Institute of Metals specializes in the study of metal materials, and they have been studying for several years, and they also have some research on single crystal metal materials. They were still very late in their research on monocrystalline materials, and they were inspired by monocrystalline silicon materials to study metal monocrystalline materials. Therefore, unlike lithium-based single-crystal materials and nickel-based single-crystal materials in the United States, it is a pure single-metal single-crystal material, such as pure iron.

There is no pure iron in the earth's nature, only pure iron is found on the moon, and pure iron does not mean that it is a single crystal. Another important measure of monocrystalline materials is that they must be crystal phase consistent, which means that the tendon must be a stable geometry. The conditions for the formation of a single crystal material are unique, which means that you must meet a unique condition before it can form a single crystal. For example, diamonds, so natural diamonds are expensive.

We only say that metal single crystals, or atomic-level single crystals, some non-metallic substances in the form of single crystals are very easy conditions, such as water, salt, sugar, copper sulfate decahydrate, etc., these substances are composed of molecules, and the binding force between molecules is very far from the binding force between atoms, which is not an order of magnitude at all. Therefore, it does not have heat resistance and strong mechanical properties.

The Institute of Metals: What they are working on is the single crystal of iron. The first reason is that iron is abundant in nature, so it is cheap.

The second reason is that they used ion sputtering technology when they studied the technology of iron pot non-sticking, so that the iron pot could not stick to the pot and could prevent rust. Afterwards, they also conducted an in-depth study of this phenomenon. It was found that because the iron atoms were too tightly bound to each other, there was a strong binding force, so that the oxygen molecules could not easily combine with the iron atoms to produce rust.

So some researchers wondered if it was possible to make iron atoms like monocrystalline silicon to form monocrystalline iron?

So they conducted research for more than a year, and because they had no previous experience, they had to constantly explore it on their own, so it took a lot of time and money. Fortunately, they belong to Changsheng Investment Group, and fortunately they met Shen Danqing, a big-tempered boss who looks down on money. Shen Danqing has always spared no effort in his investment in scientific research. The large amount of money spent on scientific research has been regarded by him as a cold number, and he has always been steadfast and has not changed his original intention.

After studying for so long, of course, there are some results. They also obtained some single crystal iron by chance, and after experiments, it was found that the heat resistance, corrosion resistance and mechanical properties of this material are very good. When Shen Danqing asked Zhang Xiangdong about materials at the technical seminar on the development of gas turbines, he patted his chest and assured Shen Danqing that there was no problem.

However, they have not yet mastered the correct method of forming pure iron into single crystals. It also takes in-depth research to really get this excellent material.

Let's go back to the Institute of Mechanical Technology to study the problem of gas turbine fan blades. Due to the nature of the work and the working environment, the material of the low-pressure turbine fan blade is not the same grade as the material of the high-pressure air fan at all, and it is very expensive. Internationally, the price of this kind of blade material is more than 100,000 US dollars, of course, there is a high profit. Changsheng Investment Group is a self-produced material, although the price is cheaper, tens of thousands of yuan a piece is still required.

Therefore, Guo Dong was careful and careful when they studied the shape of the fan blades, for fear that the shape of the blades would be unqualified in the future, and they would lose millions of dollars at a time.

They not only pay attention to the speed and kinetic energy, but also pay special attention to the ****** of the spindle rotation. Even if there is even the slightest trembling, it is necessary to stop and carefully study whether it is a problem with the shape of the blade, a problem with the connection with the main shaft, or a problem with the distance between the two blades. With so many problems to investigate, let's think about how efficient they are!

Inefficiency, this is the problem of the historical conditions in the nineties, when there was no 3D modeling software, and even if there were, the Institute of Mechanical Technology could not use it. Because they don't have any historical experimental data yet. 3D modeling software must be backed by a detailed database to be truly effective. This is different from Changsheng Investment Group, they have a large amount of experimental data in the past few decades, so as long as there is software and a working computer, they can get started immediately. This is the heritage of the old developed countries, and Changsheng Investment Group still has a long way to go if it wants to catch up.

How big a gap is there between the efficiency of scientific and technological research and development in the nineties and now, take a very intuitive example, and everyone will understand.

In the nineties, it took nearly 20 years to develop a car and to study a full-fledged model. That's right, it takes so long, and it's not just one company, it's all. If you don't believe it, you can find out about the development time of Volkswagen Golf and Ford Mondiere.

This is said in the past, now it only takes a year to develop a car, and it can be done in half a year. One of the biggest contributors to this is 3D modeling software. Of course, there are other important inventions, which I will talk about when I develop cars in the future, so I won't go into too much detail here.

Scientific research is very complicated and boring, and it takes a lot of time and money, and Shen Danqing also knows this. But reality doesn't give him much time, such as gas turbine generator sets. The power plant must be built this year, otherwise it will seriously slow down the rest of the process. But he also knows that this scientific research topic is the most difficult, because he knows that even China in the 21st century does not have a gas turbine generator set that can be used. So he just called from time to time to give them a sense of urgency. And he himself did not go to the scene, because he knew that it would be useless to go.

But with a few other institutes, he decided to go for a walk. They are relatively less difficult, and if you press them up, it is possible to speed up the research and development process.

The first unit he was going to walk around was the Institute of Physics. The Institute of Physics is responsible for the research and development of the backlight material of the AMOLED display, in fact, this material is what he saw in his previous life from Tencent Video, a British research institute, developed a carbon nanomaterial, which has strong light absorption, even if it is directly exposed to strong light, there is no trace of reflection. When discussing the AMOLED screen, he got the inspiration that he could use this material as the background plate of the AMOLED screen. Its unique light-absorbing characteristics can make the display almost impossible to astigmatism and only direct light. Without the dry deflection of astigmatism, the image display effect of the corresponding display screen will be very good.

Sometimes technological advancements are driven by such a flash of inspiration. And Shen Danqing is just such a person who feels sensitive, he can always grasp the key points inadvertently, so the scientific and technological achievements of Changsheng Investment Group are basically achieved by his mention. Even those products that sell well in Europe and the United States are only possible because of their unique product concepts and ruthless quality standards.

If he is another reborn, he will definitely not be able to reach Shen Danqing's current achievements in just a few years. Therefore, Changsheng Investment Group can have today's scale, and Shen Danqing has made great contributions.

To be continued......