In the evening, in the small auditorium of the Technical College, more than thirty people had already taken their seats, waiting for Yan Jiecheng to start his lecture.
Yan Jiecheng was shocked when he arrived. 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 Dean Yan chatting well with those experts, he would have run away long ago.
After all, there were some things he did that were not authentic.
The same goes for Dean Yan. It was just a small lecture and he publicized it everywhere.
It's okay for him, the dean, to sit there. The most important thing is that he is also a member of the academic department, Professor Jin from Jiaotong University. If these people are here, it will be his turn to give lectures, Yan Jiecheng.
Just like Professor Jin from Jiaotong University, he is the pioneer and founder of the railway transportation discipline in our country.
He built a complete system of domestic transportation management disciplines.
This kind of person naturally brings a sense of oppression to Yan Jie, regardless of his academic status or debt relationship.
"Dean, Mr. Luo, Professor Jin, experts, why are you here? Aren't you trying to scare the kid!" Yan Jiecheng ran forward and said hello to several people.
Professor Jin and Luo Gong both smiled and said they came to listen to young people's ideas and draw parallels.
Next to Professor Jin, a thin middle-aged man wearing glasses said with a dark face: "Professor Jin and others are here to listen to the lecture, but I am not. I am here to collect debts."
"Haha, Teacher Jiang is joking, joking, everyone knows that Teacher Jiang is a generous person, and he won't do it for a few books. He won't do it.
Besides, Jiaotong University has a lot of money and supports poor relatives like us with a few books. There is no reason to go back. It’s just a joke. "
Teacher Jiang from Jiaotong University saw this and said to those around him: "This kid really wants to think of me as Captain Jiang."
Everyone laughed when they heard this.
Professor Jin smiled and said: "Director Xiao Yan, let's start the lecture. If you lecture well, I will make the decision, and the batch of books will be sent to you."
Seeing Yan Jiecheng's face blooming with a smile, he continued: "If you don't explain well, I will ask Teacher Jiang to come every day to collect debts."
"Hey, don't worry, Teacher Jiang is destined not to enter our college."
Yan Jiecheng said quickly after listening to Professor Jin's words.
If Professor Jin makes the decision, he can really make the decision.
After all, he and President Mao were responsible for reorganizing Jiaotong University after the founding of the People's Republic of China, and they were still very authoritative within Jiaotong University.
If what he said is really bad, just inform the guard and deny him Teacher Jiang's release. Anyway, Yan Jiecheng's boast must be realized.
Seeing that everyone had arrived, Yan Jiecheng apologized, walked up to the podium, and started today's lecture.
"Ahem, experts and teachers, your time is limited, so I won't talk nonsense.
Let me talk about it below, seamless line.
We all know that the rail joints on our railway lines are the weak links.
As the load intensifies here, the rails are prone to bowing and falling off, exacerbating vehicle vibrations.
So how to eliminate this weak link?
This is our topic today - seamless lines. "
Yan Jiecheng talked about the concept of seamless circuits. These contents were mainly taught to teachers in his own school.
Most of them are engineers and don’t know much about cutting-edge technologies.
Unlike the professors at Jiaotong University, they all specialize in this field and always pay attention to the latest trends in the industry.
Yan Jiecheng took a sip of water and then said:
"Seamless lines began to appear more than 20 years ago. In the early days, Germany laid such lines.
As we all know, the advantage of seamless lines is that the number of joints is 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, making the operation smooth and reducing noise.
On the other hand, since the vibration at the joint is reduced, the service life of line equipment and rolling stock can be extended.
Therefore, it should be the direction of railway development in our country.
There is a core issue here, which is how to control the thermal expansion and contraction caused by temperature changes.
We temporarily refer to the force of the rails to freely expand and contract due to changes in temperature as temperature force..."
Yan Jiecheng talked for two hours. His mouth was dry and he drank a few sips of water.
Rested for a few minutes.
Then he said: "A little personal opinion." Then he looked in the direction of Luo Gong and Professor Jin, and said with a smile: "It's a big family to laugh at."
"Director Xiao Yan, what you said was very good and insightful. It really makes me ashamed that I didn't find you earlier." Professor Jin said and glanced at Luo Gong with resentment.
Luo Gong ignored him at all and asked Yan Jiecheng: "Director Xiao, 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 country’s industrial strength.
At present, our country’s industrial strength is still somewhat weak, so this problem…”
Luo Gong also felt bitter after hearing Yan Jiecheng's words.
Upon seeing this, Professor Jin said: "Last year, some units began to study cathodic protection thermite welding technology. I heard that the progress is quite rapid."
Everyone asked some questions one after another, and Yan Jiecheng also explained them all.
The lecture ended at almost ten o'clock.
"Professor Jin, are you satisfied?" Yan Jiecheng approached Professor Jin and asked with a smile.
Professor Jin smiled, looked at him, shook his head, and then said, "You are a good boy. He is knowledgeable and insightful, and his lectures are good. It's a pity that he is not from our school."
Yan Jiecheng chuckled and said, "Professor Jin, I can be considered a graduate of our school. Then look at the donation of books."
Professor Jin: "Okay, this is my promise and I will keep my word."
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 doesn't care if he doesn't get free prostitution. Just post a haha and pass.
Everyone exchanged a few words and went home.
Yan Jiecheng also rode his bicycle back home.
Today's lecture made him feel a lot and also quite frustrated.
In later generations, he took things for granted, and seemingly simple construction was supported by the industrial system of a large country.
I really understand that sentence: Behind the infrastructure madness is the competition between the national industrial system.
A simple rail welding, there won’t be too many such manufacturers in the future.
He was a little frustrated. One person's strength is like a drop of water, unable to make a single wave in the ocean of time.
Yan Jiecheng is like a bowl of water, and it doesn't make any difference if he pours it all in.
Seeing the brightly lit train station from a distance, Yan Jiecheng remembered that they built this majestic building under such difficult conditions.
I can't help but feel proud that nothing can stop this country from moving forward.
Yan Jiecheng's frustration was swept away, and he was filled with pride. No matter what difficulties he had, he would first lead others to solve the theoretical basis of seamless lines.
After the idea came to his mind, his feet moved even faster, passing through the ancient city like a stream of light.
