It's your sister, Lin Feng thinks she's just joking.

This is a real train, it looks like it is still a train with a speed of more than 2,000 kilometers per hour, not a model train that Xie Er likes!

There are tens of thousands of parts on the locomotive alone, right? And what does it have to do with me?

Lin Feng took two steps back, feeling that the unbelievably beautiful female postdoc in physics in front of him was definitely deliberately trying to pull him into the water.

What kind of locomotive is designed, he even has two directions of threads, and he only knew about it when he dismantled the electric fan in the first semester of his third year of high school.

"Actually, I already have a preliminary plan," Sima Lili said with a smile, "but you know that a locomotive has too many parts and is too complicated, and many times it needs to be improved on site, so I want you to be next to that machine for a long time to help us process parts, so that I can have a few days off during the Chinese New Year."

"Well, in order to finish it as soon as possible, let's start now, shall we?"

Lin Feng really wanted to turn around and leave.

He felt that his college life was completely ruined by these never-ending jobs. He hadn't been to school for more than a month, and I don't know if his classmates had forgotten about him.

It's almost late November, and if he gets involved in this locomotive design again, he doesn't think he will have to go to school this year.

"Don't worry, Brother Lin, I've already asked you for leave at the school. ”

Political Commissar Li was late, but he threw out a sentence that made Lin Feng almost collapse.

It is true that with his old man's energy, even if he directly gets a graduation certificate, it is no problem, but what about a good life?

Lin Feng once read a lace tabloid that said that somewhere in Brazil, there was an old man who would knit a very beautiful straw hat, and as a result, a tourist wanted to buy 20 at a time, but the old man doubled the price for him.

Why, it affects people's enjoyment of life, of course, I have to charge you more.

If this happened in Huaxia, it is estimated that buying 20 hats at a time would be half cheaper.

This is the different results of the two different mentalities of focusing on life and focusing on making money, and Lin Feng feels that he should enjoy life more.

"Brother Lin," Political Commissar Li saw the reluctance in his heart, and said earnestly, "You have worked hard, and this is also for the people's livelihood of our country."

"Academician Sima hasn't told you yet, you are invited to participate in the design of the new locomotive, and you will also be paid. ”

"How much?"

"2 billion, what do you think?" Political Commissar Li asked tentatively, "Of course, the money is hired by the Linfeng Science and Technology Laboratory, and the materials, technological achievements, and processing fees that need to be used are calculated separately." ”

If you want to give money, although 2 billion is not a lot for him, it is better than nothing. And in the words of Political Commissar Li, this is to solve the problem of people's livelihood, so he will not shirk.

Seeing that Lin Feng casually negotiated a business of 2 billion, Fan Lei's heart on the side was pounding, feeling that this time was too long to see.

In the past, he bought and sold, and with good luck in a month, he could earn 20,000 or 30,000 at best, and 2 billion was enough for him to buy and sell for several lifetimes.

Let Fan Lei go through the formalities, Lin Feng and Sima Lili came to the workshop, first used new materials to solve the heat dissipation problem of the tank, and then the two began to study the new locomotive on the spot.

Super locomotives belong to completely new designs, and there is simply nothing to borrow and ready-made to utilize.

According to Sima Lili's introduction, it is precisely because Lin Feng's shield machine can quickly punch a high-strength, high-precision tunnel, so there is this idea.

"Our initial idea was to build four tracks in the tunnel, two on top and two on the bottom, so that the train would not derail. I didn't do this before, because the cost was too high, and the accuracy of the track layout was too high, which could be achieved in theory, but it was too difficult to operate in practice.

"Now with your TBM, the tunnel is almost a straight line, and we measure that the diameter of the inner circle is less than 1 micron and the straightness tolerance is less than 0.01 millimeters, which is more precise than the parts machined on a precision machine, and I wish I could know how you do it. ”

Regarding Sima Lili's question, Lin Feng could only laugh at it. In fact, before just now, he didn't know that the hole made by the shield machine was so bad.

Seeing that he refused to speak, Sima Lili continued: "Coupled with your supramolecular polymeric material processing equipment, the parts produced can also reach the micron level, so we dare to boldly design this locomotive." ”

Lin Feng looked at the time, it was almost 7 o'clock in the evening, although he was not hungry, he couldn't give up his life for work, and he had to continue to give up sleeping: "Why don't we continue tomorrow?"

"Boss Lin, it's still early, I think we can make the main body of the locomotive today. ”

Lin Feng: "......"

What else can he say to a workaholic?

The main body of the locomotive is relatively simple, it is a square shelf, and after calculating the size, eight wheels are installed on the four sides of the shelf.

These are made of supramolecular polymeric materials, including the bearings in the wheels, because the hardness and toughness are sufficient, and they can withstand high temperatures, as long as you add some oil regularly, you don't have to worry about wear and tear at all.

Why do maglev trains run fast?

That's because the train is lifted by a strong magnetic field, which greatly reduces the friction between the train and the track. But that thing is too power-consuming, and the production cost is too high, so it has not been widely used until now.

And this supramolecular material is very perfect and effective to overcome the undesirable factors caused by friction.

I have to say that this material is more versatile, and only such a material can withstand the baptism of high speed and high temperature.

Sima Lili called a crane to lift the frame away, and asked Lin Feng to make more than 3,000 tracks, almost consuming the remaining materials.

She said with a little regret: "There is no way, the rest can only wait for tomorrow." ”

Lin Feng was overjoyed and felt that he could go back to sleep, but he heard her say again: "Open the 10-kilometer tunnel for the test today, and then rest." ”

It was already two o'clock in the morning when Lin Feng returned home, and when he was leaving, Sima Lili was still directing the engineers to install the track in the tunnel at the scene.

That's a delicate job.

In her words, if the track is installed with an error of more than 0.1 mm, there is a risk that the train running at high speed will have strong vibrations or even fall apart in an instant.

This is a big issue of human life, and there is no room for sloppiness.

However, Lin Feng can't help with these things, so let him go, and getting a good night's sleep is the right thing.

............

The next day, he slept until 10 a.m., and when he arrived at the station, Sima Lili had been waiting for a long time at the mouth of the tunnel.

Seeing the slight tiredness on her face, it is estimated that she hasn't slept much all night, Lin Feng feels a little embarrassed. is worthy of being a heroine who got a postdoctoral fellow at the age of 20, and this desperate spirit alone is worth learning from too many people.

The track has already been laid.

Lin Feng followed the huge hole into the underground tunnel, and the frame of the locomotive he had built last night had been placed on the tracks.

Except for the first 50 meters of the tunnel, which is relatively open, the diameter of the official operating tunnel is only two meters. On the smooth walls of the cave, four tracks are straight forward, and power wires and data cables for monitors are bundled together and stretch into the distance.

Lights, speed cameras and unknown instruments are installed every 10 meters in the tunnel, as well as two rows of sliding power lines to power the locomotives.

10 kilometers, I don't know how many engineering personnel Sima Lili transferred to work overtime last night. She began to say that she only needed two people, her and Lin Feng, and that was simply a change of concept.

Sighing slightly, Lin Feng saw a big truck drive in, and a strange-looking machine was installed on the frame of the locomotive. 21010