"The headquarters is preparing to experiment with seamless lines, I know that you kid has a good brain and a lot of ideas, this time you take the initiative, sort out all your ideas, and give it to me."

If this is done well, I can take the tea here as you like. ”

Yan Jiecheng laughed and said, "Luo Lao, then I'm not welcome, I will definitely empty it for you." ”

Yan Jiecheng was thinking about the seamless line.

Literally, it is a line without seams, and a more technical one is a line that welds or glues a standard length of rail to a long rail.

Generally, railway lines are connected one by one, and when people sit on the train and pass through the rail joints, they will make a clanging sound.

There is a very core problem of this seamless line, which is the problem of heat expansion and cold contraction.

If it is not handled well, it will be pulled off in winter, and it will rise in summer.

Yan Xie Cheng has a big head, how can there be such a small problem, from transportation to welding is a difficult point for today's country.

Only then did he realize that he had fallen for the old man again, and said, "Alas, your tea is not good." ”

"Haha, what do you kid think."

Luo Gong took a sip of tea and looked at Yan Jiecheng and said, "I heard that you kid has been going to Jiaotong University a lot recently, and he is in the library every day. ”

"Hey, look at what you said, how can you say that the matter of borrowing books can be said to be Huohuo." Yan Jiecheng said unhappily.

Luo Gong looked at him with a smile and said, "How did I hear that the library of Jiaotong University won't let you in now, in case you become like a thief." ”

Yan Jiecheng said with a look of disdain: "Hey, to say that such a big university is too lacking in the bearing of a scholar.

I just took a few of their books and talked about them everywhere. ”

"How many copies do you have? There are more than 400 books in the collection, have you finished reading them? ”

Yan Jie's prejudice was pierced by Luo Gong, and he was also a little embarrassed.

After moving to the college, Yan Jiecheng went to Jiaotong University to borrow books when he had time.

But his perverted memory, a book can only be read in two days at most.

So I simply borrowed a few more books every time, and later saw that their college didn't have a library.

Yan Jiecheng had a crooked brain, so he borrowed more than 400 books from Jiaotong University at one time.

Jiaotong University also enthusiastically asked students to help move books.

When the book arrived in Yan Jiecheng's hands, he found an empty house in the technical college and built a small library.

Yan Jiecheng also looked for Dean Yan, and after a while of discussion, the two let out a wicked smile.

Subsequently, an official letter was sent to Jiaotong University, highly praising the selfless and enthusiastic spirit of Jiaotong University.

He said that the technical college received the donated books from Jiaotong University, and the teachers and students of the school were very happy, and everyone was very grateful.

Seeing Luo Gong's face of contempt, Yan Jiecheng suddenly became a little arrogant.

"It's not like we're thanking them. Our college also issued them receipts and wrote thank-you letters. ”

"Hey, Luo Gong didn't say you, we are a family.

Why do you always talk to outsiders? ”

Luo Gong took a closer look at Yan Jiecheng's face, and said expressionlessly: "I have been the president of Jiaotong University for ten years, and I am the one who is with me. ”

Then he said: "I asked Jiaotong University to make a sign and stand at the door of the library, saying that Yan Jiecheng is not allowed to enter. ”

Yan Jiecheng opened his mouth and said: "Old Luo, this pattern is too small, we can't be like those devils, what else is Yan Jiecheng and dogs can't enter, such a childish thing." ”

"Well, that's good, I'll go back and ask them to change it."

Yan Jiecheng: ......

"You, I haven't been to Huohuo recently, I heard that they have been looking for you kid recently, don't be caught by them as a donkey."

Yan Jiecheng smiled, how could it be.

Since he coveted other people's books, he never went to Jiaotong University again.

At this point, he is still a little forced in his heart.

It is said that this matter has been troubled by Minister Teng.

According to Dean Yan, Minister Teng seriously criticized Yan Jiecheng's bandit behavior in front of Principal Mao.

After Principal Mao left, Minister Teng said to the people around him: This young man is good, don't wait, don't rely on. Do-it-yourself, abundant food and clothing, very much our tradition.

After accompanying Luo Gong for a conversation, seeing that it was getting late, Yan Jiecheng took his leave and left.

On the second day, Yan Jiecheng asked about the seamless line at school, but everyone didn't know.

In Lao Xie's eyes, the rails are not connected one by one, and they have been used well, so why should they be welded together.

Seeing this, Yan Jiecheng also knew that there were not many people who knew about seamless lines in China, and it seemed that he had to make great efforts in this task.

Call Chen Hanliang and ask him to assist, after all, he is a top student of Jiaotong University, and it is still possible to get started.

"Han Liang, I have an important task here, and I need your help to complete it." Pouring a glass of water for the young man, Yan Jiecheng said softly.

Seeing this, Chen Hanliang was surprised, what important topics could they have in this technical school?

Yan Jiecheng knew what he was thinking when he looked at his face, and explained: "This topic was assigned by Commissioner Luo of the school department.

It is a key topic of railway transportation in our country.

It is the research and implementation of the seamless line I mentioned earlier. ”

Seeing this, Chen Hanliang said, "Director, but, I don't understand this, it's the first time I've heard of it." ”

Yan Jiecheng smiled: "It's okay, Han Liang, I understand."

Your task is to contact the rolling mill and ask them about the expansion coefficient of the rail.

Let's do the math, if we take it in kilometers.

At what temperature it is laid, it is shortened by the same amount as it is elongated. ”

"Then you have to calculate how much the rail expands and contracts with temperature.

and how this temperature stress changes inside the rail. ”

Chen Hanliang felt that he had been reused by Yan Jiecheng, so he agreed in a daze.

Yan Jiecheng thought that this was a lot of work, and it had to rely on the efforts of everyone in the department.

said to Chen Hanliang: "Hanliang, you tell everyone."

Let's just say that after work today, let's not go, let me tell you about the seamless line, we, as professionals, still have to understand.

It can be regarded as a professional and technical lecture for them as the director. ”

Wait for Chen Hanliang to leave.

Yan Jiecheng took out a pen and wrote it in a notebook.

After all, I will give you a lecture in a while, and they are all professionals. You still have to prepare, otherwise it won't be good to make a joke.

He thought for a moment and wrote a couple of titles.

Advantages and disadvantages of seamless lines.

Classification of seamless routes.

Construction of seamless lines.

Stress relief for seamless lines.

Maintenance of seamless lines.

Everyone in the office heard Chen Hanliang's words. There are heated discussions.

After all, their college has only been established for a short time, and they have not yet held technical lectures.

Yan Jiecheng also held the first regular meeting in the hospital

Even Dean Yan heard about this and said that he would also participate.