The Boss of the Yan Family in Siheyuan

Chapter 82 Dilemma
In the evening, in the small auditorium of the Technical College, more than 30 people had already occupied their seats, waiting for Yan Jiecheng to give a lecture.

When Yan Jiecheng came, he was taken aback. There were not only teachers from his department in the small auditorium.

Dean Yan, Luo Gong, and several experts from Jiaotong University were also there.

If Yan Jiecheng hadn't seen that Dean Yan was having a good conversation with those experts, he would have run away long ago.

After all, there are some things he did not be authentic.

The same is true for Dean Yan, who spread the word everywhere in just a small lecture.

He, the dean, is fine sitting there. The key is that there are academic committee members, Professor Jin from Jiaotong University, these people are there, and it will be Yan Xiecheng's turn to give lectures.

Just like Professor Jin from Jiaotong University, he is the pioneer and founder of our national railway transportation discipline.

He built a complete system of domestic transportation management disciplines.

This kind of character naturally gave Yan Xiecheng a sense of oppression, no matter in terms of academic status or debt relationship.

"Dean, Mr. Luo, Professor Jin, experts, why are you here? Isn't this scaring the kid!" Yan Xiecheng rushed forward to say hello to several people.

Both Professor Jin and Luo Gong smiled, saying that they came to listen to the young people's thoughts and understand by analogy.

Next to Professor Jin, a thin middle-aged man wearing glasses said with a dark face, "Professor Jin and the others are here to listen to the lecture, but I am not here. I am here to collect debts."

"Haha, Mr. Jiang was joking, he was joking, everyone knows that Mr. Jiang is a big man, he won't do it for a few books, he won't do it.

Besides, Jiaotong University has a lot of money to support us poor relatives with a few books, so there is no reason to go back, it is purely a joke. "

Teacher Jiang from Jiaotong University saw this and said to the surroundings: "This kid really intends to take me as Captain Jiang."

Everyone laughed loudly.

Professor Jin smiled and said, "Little Director Yan, let's start the lecture. I'll make the decision if the lecture is good, and I'll give you the batch of books."

Seeing that Yan Xiecheng was smiling, he went on to say: "If the speech is not good, I will ask Teacher Jiang to come to collect the debt every day."

"Hey, don't worry, Mr. Jiang is destined not to enter our academy."

After hearing Professor Jin's words, Yan Jiecheng said quickly.

This Professor Jin is in charge, so he can really be in charge.

After all, after the founding of the People's Republic of China, he and President Mao were in charge of reorganizing Jiaotong University, and they were still very authoritative in Jiaotong University.

In case if the speech is really bad, just inform the guard that Mr. Jiang will not let him go. Anyway, he Yan Jiecheng is bragging and must realize it.

Seeing that everyone had arrived, Yan Jiecheng apologized, stepped onto the podium, and started today's lecture.

"Ahem, experts and teachers, everyone's time is limited, so I won't talk nonsense.

Now let me talk about seamless lines.

We all know that the rail joints of our railway lines are weak points.

The load at this place is intensified, and the rail is easy to bow and fall off, which aggravates the vibration of the vehicle.

So how to eliminate this weak link?

This is our topic today - seamless lines. "

Yan Jiecheng talked about the concept of seamless lines, mainly for the teachers in his school.

Most of them are engineers, and they don't know much about cutting-edge technologies.

Unlike the professors of Jiaotong University, they all specialize in this research and always pay attention to the latest developments in the industry.

Yan Jiecheng took a sip of water and continued:

"Seamless lines began to appear more than 20 years ago. In the early days, Germany once laid such lines.

We all know that the advantage of seamless lines is that joints are greatly reduced compared with ordinary lines.

It not only saves a lot of joint parts and line maintenance workload, but also reduces the joint vibration of the train, runs smoothly and reduces noise.

On the other hand, since the vibration at the joint is reduced, the service life of the line equipment and the rolling stock can be extended.

Therefore, it should be the direction of our national railway development.

And there is a core issue here, which is how to control the thermal expansion and contraction caused by temperature changes.

We tentatively refer to the force of free expansion and contraction of rails due to temperature changes..."

Yan Xiecheng talked for two hours, his mouth was dry and he drank a few sips of water.

Rest for a few minutes.

Then he said: "A little personal opinion." Then he looked at the direction of Luo Gong and Professor Jin, and said with a smile: "I'm laughing at Dafang's family."

"Little Director Yan, your speech is very good and insightful. I am really ashamed that I didn't find you earlier." Professor Jin glanced at Luo Gong resentfully as he spoke.

Luo Gong ignored him at all, and asked Yan Xiecheng, "Little Director Yan, continue to talk about the welding problem."

Yan Jiecheng thought for a while and said, "There are currently three mainstream methods of rail welding in the world.

Thermite welding, pressure welding, contact welding.

This is a technology that reflects the industrial strength of the country.

At present, our country's industrial strength is still somewhat weak, so this problem..."

Luo Gong felt bitter after hearing Yan Jiecheng's words.

Upon seeing this, Professor Jin said: "Last year, some units have started to study the cathodic protection aluminothermic welding technology, and I heard that the progress is quite fast."

Everyone asked some questions one after another, and Yan Jiecheng also explained them.

It's almost ten o'clock when the lecture ends.

"Professor Jin, are you satisfied?" Yan Jiecheng found Professor Jin and asked with a smile.

Professor Jin smiled, looked at him and shook his head, and then said: "You boy is not bad, he is knowledgeable and insightful, and he speaks well, but unfortunately he is not from our school."

Yan Jiecheng laughed and said, "Professor Jin, I'm also a graduate of our school. Then look at the book donation."

Professor Jin: "Okay, this is my promise, so naturally what I say means what I say."

Yan Jiecheng said to Dean Yan: "Dean, hurry up, Professor Jin said he would donate books to us."

Teacher Jiang saw it and said, "You Yan Laoxi, don't go too far."

Yan Jiecheng didn't care if he couldn't get a whore for nothing.Just post a haha ​​and go.

After a few pleasantries, everyone went home.

Yan Jiecheng also rode his bicycle to go home.

Today's lecture made him feel a lot, but also frustrated.

In later generations, he took things for granted, and the seemingly simple construction was supported by the industrial system of a big country.

I really understand that sentence: behind the infrastructure mania is the competition of the national industrial system.

For a simple rail welding, there will not be too many manufacturers of this kind in later generations.

He was a little frustrated, the strength of a person was like a drop of water, unable to stir up a single wave in the ocean of the times.

He, Yan Jiecheng, was a bowl of water, and it didn't make any difference if he poured it all in.

Seeing the brightly lit railway station from a distance, Yan Xiecheng remembered that they built this majestic building under such difficult conditions.

I can't help being proud, nothing can stop the progress of this country.

The frustration in Yan Jiecheng's heart was swept away, and his pride surged. Regardless of his difficulties, he led others to solve the theoretical basis of the seamless circuit first.

After the thought was clear, the feet climbed even faster, passing through the ancient city like a stream of light.

(End of this chapter)