Good guy, this is really a talent! Fortunately, he acted early, if such a talent was poached by other brother units in Southwest Science and Industry, it would be a great loss.

This kind of baby bump must be hugged, and he must not be allowed to run away.

"Oh, it turns out that Senior Li Yun is still a compound talent, you are what we need the most! In this way, you see how our Southwest Science and Technology Industry is, it is good to work directly on our side after graduation. ”

This is a naked solicitation, tearing off the disguise on the surface, Yang Hui directly issued an invitation, it depends on whether this Li Yun is interested in Southwest Science and Industry, I am fortunate to lose it......

It's impossible, you can't lose it, don't you see that Li Yun is also a little moved now? This completely shows that there is a drama!

But now that his studies are not over, Li Yun is not good at directly saying in front of the tutor that he wants to go to the Southwest Science and Technology, master, this kind of teacher still has to be abided by, at this time Li Yun still set his sights on the professor again.

The professor himself is very satisfied with Li Yun's current performance, at least his mentor still occupies a very important proportion in Li Yun's heart, of course, he will not stop Li Yun's wishes.

"Go, if you are willing to go to Southwest Science and Industry, it is also a good choice, I will not object, and now there are few units that are willing to invest heavily in the development of digital fly-by-wire flight control."

Hearing this, Yang Hui and Li Yun were relieved, Li Yun may stay in the Southwest Science and Industry at least eighty percent, and the remaining two achievements depend on the will of God, sometimes various factors will appear, and there is any possibility before it is completely decided.

Now Li Yun has been approved, and he is no longer verbose: "That's good." I will work here in Southwest Science and Technology in the future, and I think this place is very good, and the people are outstanding. It's a good place. ”

The first time I heard someone say that the place where Southwest Science and Industry is located is good, Yang Hui is also happy to the heart, is this because the mountain is not high, there are fairies and spirits, it may be because the company has been in the limelight in the domestic aviation system in recent years.

"That's really good, we welcome all people with lofty ideals to join, we just need more talents, in order to have stronger scientific research strength. Now let's go and look at comrades from other units. ”

After arranging comrades from fraternal units from all over the world, Yang Hui finally freed his hands and now took people from the Hongqi Factory back to the second institute together.

Sitting on a small jeep in the middle of winter. Yang Hui said that this is indeed a little too cold, but the few Poussin planes at the base are still baby bumps, and now they are staying there to support the scene, after all, the scale of foreign experts in the base should be the largest in the domestic aviation system.

"I'm almost there. Let me start with a brief introduction. Now our high-temperature turbine blades are also more mature. Although the turbofan 10 engine has not yet been finalized, due to the relatively long production cycle of blades for high-temperature turbines, we have already pre-produced a batch of blades. ”

The production cycle of turbine blades is really not a joke, the general production cycle of aero engines is about one year, and the slowest of them is high-temperature turbine blades.

Even in the 21st century, the three major aircraft engine providers in the West produce high-temperature turbine blades for an engine, and the cycle time is several months. Not to mention the current Southwest Science and Industry.

Hongqi Factory has long been prepared for this, isn't it a long production cycle? Everyone has been prepared for a long time.

"That's fine. We have been prepared for a long time, but I don't know if the current yield has risen, which is the problem we urgently need to solve now, I don't know if Secretary-General Yang knows something about this? ”

The manufacturing rate of high-temperature turbine blades is flat, which is more difficult to come up with, Yang Hui thinks about it and feels that it is more pitted, but fortunately, there has been a small improvement.

"On the issue of yield, I don't know much, at the beginning of our blade yield rate is only about 30%, now we have been continuously improved, optimized, although the flattening rate has not increased, but in the loss of materials, the production cycle has made a lot of progress, the overall cost has decreased."

Speaking of which, Yang Hui also feels that it needs to be strengthened, and there is indeed a lot of difference compared with the yield rate of at least more than 50% abroad.

Hearing Yang Hui's news, the Hongqi factory here is also a little bottom, the yield is still relatively low compared with foreign countries, but it is still not much worse than the domestic high-temperature turbine yield rate, which is also acceptable.

The different ideas of Hongqi Factory and Yang Hui can be seen from the gap between the two units, although the current Hongqi Factory has also broadened its horizons, but it is still a little backward compared with Southwest Science and Industry.

The plane finally stopped at the second institute, a team of people got out of the car, and walked to the institute under the leadership of Yang Hui, Director Bai had already received Yang Hui's news in advance, and the idea of the Hongqi Factory, Director Bai came to the same conclusion after thinking about it as Yang Hui.

"Oh, the comrades of the Hongqi Factory have finally arrived, I have been waiting for a long time, we will talk about the manufacture of high-temperature turbine blades later, rest assured, we must not treat the brother units that have helped us badly."

Director Bai smoothly received the visitors from the Hongqi Factory, and Yang Hui did not stay longer, and went straight to the gear transmission technology localization group where Zhong Jianshe was located.

"Construction, didn't you say the other day that the first gearing systems have been made? Where, I'll take a look, this thing is a magic weapon for us to win in the field of civil aero engines in the future, and we must pay attention to it. ”

As soon as Yang Hui walked into the company, he couldn't wait, Zhong Jianshe was also surprised, and immediately stood up and took Yang Hui to the side.

"Yang Group, our gearing system is indeed manufactured according to the technical data given by Garrett and is now being tested, and Garrett has also provided an engine to test our gearing system, but"

said good news, but Zhong Jianjian's desire to talk behind is obviously bad news, what is this? Yang Hui's heart also hung with the pause of Zhong Jianjian.

"Questions? Let's hear it, there is really no way to solve it, then ask Garrett to provide technical support, they clearly said in the contract to assist us to complete the localization of the gear transmission system. ”

Yang Hui said this, Zhong Jianshe didn't know, the problem is not the TFE731 engine's gear transmission system, the problem lies in the improvement of the gear transmission system.

Scratching his head, Zhong Jianshe felt a headache every time he thought of this, and now he didn't come up with any good solution.

"It's not that there is a problem with the gearing system of our TFE731 engine, we have localized the gearing system of the TFE731 engine very smoothly, and the current test results are very bad. As planned, with a few more months of testing, we can freeze the technology. ”

After a pause, he thought again, and finally found a clue and began to explain to Yang Hui.

"Now we are cooperating with MTU and continuing the technical route of the TFE731 engine. We found that we couldn't go ahead in the initial design stage, and to withstand the eight tons of thrust of the new engine, our gears had to be designed to be quite large, quite thick, and the weight was too large. ”

Hearing this, Yang Hui also understood something, the technical route of TFE731 will not work in the new engine, if you are still ready to use gear transmission on the new engine, if you can't do it well, you must redesign the gear transmission system.

But then again, Yang Hui really hasn't seen the specific situation of the gear transmission system of the TFE731 engine for so long, maybe he can make some new discoveries. (To be continued......)