At present, the countries that have mastered this vortex blade manufacturing technology in the world are the United States, the United Kingdom, and several mainstream European and American countries such as Germany.

And among them, the best ones are the United States and the United Kingdom, and now Germany is also catching up, as for Japan, it can only play the leftovers that these countries have played to fool people.

For example, the United Kingdom and the United States have now begun to study single crystal vortex blades, and the maximum operating temperature of such vortex blades can reach more than 1,400 K.

The vortex blade developed in China has a maximum working temperature of 600 at present, and it will be deformed after that.

The main gap is reflected in our vortex machining and casting, in which the UK and the US have their own unique skills.

For example, in the manufacture of vortex blades, people can achieve integrated pouring and molding, and can ensure the smoothness of the vortex blade leaf surface.

The reason why they can do this is fundamentally because of their development in materials science.

For example, nickel, cobalt, and iron are used as basic materials, and if these materials want to be fused together, they must at least have a high temperature of more than 1,400 degrees, and this is not their limit.

They can also raise the temperature by 1,000 degrees and add elements like niobium and molybdenum, which allows them to make higher-grade alloys for vortex blades.

And they have also mastered the technology of crystal forming, which means that they can use micro-growth to make scroll blades, which is simply impossible for us.

Controlling the growth of alloy metals is a dream for us.

And it goes with it. They can also equip the turbine with a special cooling unit. This enables them to operate at the operating temperature of the vortex blades. Reduced by 300 to 400 degrees, this increases the life of their turbine work in another way.

This is also a difficult challenge for us.

A small turbocharger seems simple, but it integrates too much, too much technology and experience and the crystallization of wisdom.

Li Yifan's understanding of the quality, ability, and work attitude of the so-called scientific research personnel in China at present. If it was still like this, even if they were given another hundred years, they would not be able to make such a turbine.

However, what he got out of Saab's database this time can be said to be too important, especially the turbo manufacturing technology in it, if his technicians can fully understand it, at least it can make our turbojet engine improve by two grades.

Let's not mention the kind of tall and tall used in airplanes for the time being, it is used in cars, we just need to eat it thoroughly and make it. While it can't be compared to Honeywell, it's definitely comparable to BorgWarner.

On the manufacturing side of turbochargers for automobiles. The problem that has been bothering us is also reflected in the manufacture of vortex blades.

This kind of vortex blade you make should not only be light, but also hard, and be able to work continuously at a high temperature of about 1,000 degrees Celsius to ensure that it is not deformed and corroded.

Although it is not yet necessary to reach the height of an aero engine, it is already a big difficulty for domestic technicians.

Although the material of the vortex blade, everyone knows that there are only a few, nothing more than nickel, cobalt, iron, and a little more high-end niobium and molybdenum.

However, how to reasonably knead these metal elements together and make these elements arrange in an orderly manner is the biggest problem.

And in this information, the people of Saab offer a completely different way of manufacturing from the British and Americans, and they chose MIM, which is the so-called metal injection casting molding method.

This method originated from the CATAMOLD technology in Bafs, Germany, but the Swedes perfected the technology and improved some of the original problems of this technology, so as to make the most of this technology.

Several metal powders can be melted by high-temperature sintering technology, and then sprayed into the model by spray gun, and then quickly molded by rapid cooling.

To put it bluntly, this is a deformation of 3D printing technology, and this kind of thinking is really something that many technical experts have never thought of.

It is no wonder that the Swedes are able to have their own set of national defense, and they are worthy of being one of the world's scientific and technological powers because of their unbridled innovation ability.

Although they can only lead in a certain field, their lead in this field is enough.

These technologies are simply a godsend for Li Yifan, if they are all mastered, a few years later, his Chenhua Automobile wants to become the overlord of the domestic automobile industry, it is not a difficult thing.

As soon as he thought of this, he felt that he couldn't stay in Europe anymore, and the so-called European style, in fact, he saw through it and that's what it was all about.

The modern city is not much different from several metropolises in China, and there are not as many high-rise buildings as the capital and Puhai in China.

The history they are proud of, to put it bluntly, is just a few small towns with a little ancient European style, and one or two such towns are enough, and then look at the others, they are all things that change the soup but not the medicine, which is not very interesting.

If it weren't for waiting for Tang Tian, he really wanted to fly back to China as soon as possible.

It took a week to scan the data into the computer, using more than 70 500G computer hard drives.

He made not only one, but several copies, and then after checking that there were no omissions, he burned all the paper materials with a fire.

Heidi took these materials with her and took a private jet to China, where she would keep them and hand them over to him when he returned.

After all, these are all sensitive information, and if you take the ordinary civil aviation route, it is easy to be detained here.

It takes too long to take the sea, and he is not very relieved, so it is most cost-effective to take Heidi's private jet.

When Heidi left, it was just when Tang Tian arrived in Europe, and he took Tang Tian to the city of Antwerp and found a hotel to stay in.

Although Heidi told him that when she was away, he could use the castle as if it were his own.

But how could he have such a thick skin?

After all, it was Heidi's home, how could he, with another woman, fool around in Heidi's house?

With Tang Tian in Belgium, the Netherlands, the United Kingdom, France, these countries have probably taken a turn, Tang Tian is very happy, but Li Yifan has been worried about the information that has been secretly transported to China.

A week later, he couldn't wait to get on the plane to China with Tang Tian.

After returning to China, he sent someone to take out the information from Heidi, and then went directly back to the provincial capital.

Although it was already the beginning of the school season at this time, he didn't care, to be honest, as the family's industry became bigger and bigger, there were more and more places that needed him to be distracted and managed, and he was really a little skeptical, was it necessary for him to continue in this university?

Many parents think that this is a stepping stone, getting a good diploma, or learning useful knowledge, which is the capital for students to gain a foothold in society in the future.

But these things are of no use to Li Yifan at all, after all, even if he doesn't do anything now, he doesn't need to worry about his future livelihood, as for finding a job, it goes without saying, have you ever seen a president who needs to find a job?

However, studying in college and getting a diploma from Beijing Normal University is a very important thing for his parents.

After all, this is a glorious event, so if he wants to quit school, it is not something he can say, after all, there are still parents' expectations here.

So all he can do now is skip class if he can, and when he finally takes the exam, he may not fail the course.

When he returned to the provincial capital, before he had time to go to Chenhua Factory, he was directly picked up by his eldest brother-in-law.

Some time ago, with the consolidation of Yang Yuhe's position in the northern province, their family's business finally expanded to the provincial capital.

Phoenix Distillery has successfully acquired a pot of shochu distillery, and has begun the early expansion and rectification, and the trial production should be at the end of the year.

And the eldest brother-in-law also opened his real estate company to the provincial capital, and the first project to be built was the branch of their Zhengyang Hotel in the central area of the provincial capital.

The building is a deconstruction of the twin towers, the area is large enough, and the momentum is magnificent enough, and now the project has started construction, and his brother-in-law asked him to go over to check again.

The location of the hotel is in the west of the city, which is the most prosperous area of the provincial capital, which belongs to the core area of the old city.

The piece of land they took was a unit of an old state-owned enterprise in the past, because some time ago, the gang of American swindlers flickered, this unit also lost a lot of money, this time they had to sell the old headquarters and move to the outskirts of the city, and this land finally fell into the hands of their family.

"Yifan, how is my brother-in-law's speed?"

The eldest brother-in-law, with a bit of a taste of showing off, took Li Yifan to the twenty-eighth floor of the hotel under construction, and only one summer's hard work, he got such a high building, I can't help but say that the dawn of the brother-in-law's construction is really fast.

In fact, he also picked up a bargain, because this place and that unit originally wanted to build two new buildings, and when they took over, they even dug up the ground level, if it wasn't for the American liars, this land would not have been their turn to take over at all.

"Yes, it's fast, if you continue to do this, this hotel should be completed by this time next year, and the interior decoration will begin."

"Well, that is, if you do it quickly, it will definitely not be bad, and by the end of next year, you will be able to move in completely."

The eldest brother-in-law laughed, and then looked at another building next to their construction site, Li Yifan looked at his eyes, no matter how he looked at it, he was a little drunk. (To be continued......)