"Didn't something happen to my aunt's family? Didn't she say that there was something going on at home a few years ago? Did she borrow money from you?"

Ji Dongqing thought of an incident a few years ago. It seemed that the other party had borrowed money from his father.

"What the hell, your aunt's family still has no money. There are several buildings in the county. This time I brought my children to eat at KFC. I will take you to meet them when you are free!"

The 100-year-old brother knew that Ji Dongqing didn't want to see him, so he directly started talking to him.

"Okay, let me see if there is time after the graduate student interview over there. I will call you when I have time!"

Forget it, Ji Dongqing thought he had the right to refuse now, so his second uncle didn't say anything.

After dinner, Ji Dongqing walked around Toulong Street a few times, bought some things for the Lantern Festival, went home, and left when he sobered up.

The interview that I had been thinking about finally started. This year, Ji Dongqing's score was ten points higher than the admission score of the University of Technology, so he was relatively confident.

Facing the serious old men opposite, Ji Dongqing was still full of anxiety. Ji Dongqing was the tenth person to be interviewed today.

Several people across from him took turns asking questions. Although Ji Dongqing was prepared, the University of Technology was just a University of Technology, and the questions he asked were all casual.

"Where do you live for a long time? We try to require students here to be full-time. If you, a working graduate student, are out of town for a long time, it may be difficult to complete our required subjects!"

An old man never raised his head, but was looking at Ji Dongqing's file.

"I am now working as a tutor in Suihua. I will spend most of the last two years in Ordos, Inner Mongolia. I will try my best to complete my studies in accordance with the regulations..."

"where?"

The old man raised his head directly, and several other people exchanged glances with each other.

“Ordos, Inner Mongolia!”

“How far is it from Hulunbuir?”

“More than three hours’ drive!”

The old man waved and came over alone, then took a map. The old man looked at the markings on it, and then asked for Ji Dongqing's professional course results.

Then there are Ji Dongqing's previous test scores at school, as well as his professional course test scores in each year.

"What did you do last year? Why were you so short of points?"

The old man frowned and looked at Ji Dongqing's files and test results, seemingly very dissatisfied.

"I was busy earning tuition last year. I have a green channel and can earn more than 20,000 yuan in four years! I repair cars and weld everywhere..."

"Can you dive?"

"Uh...yes!"

Ji Dongqing could not finish every time he spoke and was interrupted. The old man seemed to be confirming something.

"Have you ever led a team?"

"Does managing a repair shop count? I opened one myself!"

Ji Dongqing didn't know what this interview had to do with his postgraduate entrance examination, but the people on the other side were all dads, and they said whatever they asked.

"What should you pay attention to when welding special steel, 42CrMo? What do you need to prepare in advance?"

Opening the thick folder, the old man slid his fingers over it, then raised his head.

"Prepare special welding rods. It is much better if the same material is welded! First of all, this material needs to be heated. The temperature is determined according to the thickness of the material. The welding rod needs to be heated for more than two hours, and the temperature reaches at least 70 degrees! If conditions permit after welding,

To insulate materials, it’s best to have a stove. If you don’t have a stove, bury them with lime and let the materials cool down slowly!”

"If you are welding different materials, the best way is to heat them according to the material properties and determine the carbon content..."

Ji Dongqing spoke very slowly, answering various questions in detail based on his own knowledge and practical operations. The old man said nothing, while the other people started to pay attention to it from being dismissive at first.

"What are the common problems? You have encountered them!"

The old man turned over another page and searched on it.

"The common problem of alloy materials is cracking! This is very difficult to control. It usually starts from the welding seam. On the one hand, the reason is that the material of the welding rod may be wrong, which is very common in the industry! The other reason is that the material is wrong. There are many fake materials in China.

, it is very common to find that the material becomes soft or brittle after welding! Many people use 40Cr to sell it as 42CrMo. Although the difference is not much, the welding performance is much worse! There is also the toughness and impact resistance of the material.

It is not visible at low strength, but once the fatigue limit is exceeded, the difference is immediately noticeable... The crystalline structure..."

Ji Dongqing gave an almost textbook answer, and several old men nodded continuously at this time.

Especially when it comes to the crystal phase structure of materials, people who have not really used it cannot understand it at all, and may even say something completely wrong.

"How many years have you been welding?"

"I have been welding for more than ten years. Ever since I started repairing cars, I have started to touch the welding handle! I started by stacking axles, then welding the frame..."

"Then tell me how the car's sheet metal is made?"

The old man interrupted Ji Dongqing again. Although Ji Dongqing was dissatisfied, he still laughed.

"The simplest resistance welding is resistance welding. If you look closely, there are 90 points on the sheet metal of every car. It is very clear! It is fast, and the intensity is not very high! In the past, everyone used argon arc welding, but the deformation was too serious.

Resistance welding is very convenient!”

After Ji Dongqing answered, several people nodded at the same time.

"Finally, we have a student with the corresponding major. In this way, we now have a topic, which belongs to the professional development you applied for. Part of it happens to require cooperation with the rare earth major of the Department of Materials of Inner Mongolia University. You can just take advantage of your geographical advantage in the past two years.

We have a laboratory over there, can you go?"

A few people exchanged a few words briefly, and Ji Dongqing hesitated slightly.

"Yes, as long as I can learn the relevant knowledge I want from the University of Technology. I want to learn some material properties in detail, because I can only say that I am getting started in welding!"

"I will give you a copy of my lecture notes and notes, and the teaching materials will be sent to you! If you don't know how, come back and ask me. The topics there are very important to the country. I hope you will think about it carefully. Sometimes you will sacrifice your personal health.

, you have to understand that our university truly shoulders the national mission. Every topic is not something that people can participate in casually. Once you participate for three years, you have to be on call. Of course, you are free when you are not needed.

!”

"Also, can you strictly keep state secrets?"

The old man spoke very formally, and Ji Dongqing also restrained his laziness.

"I can!"

"Okay, you will sign the agreement later, and then we will greet you at Inner Mongolia University of Technology, and your files and information will be circulated electronically. You belong to the Materials Department of Harbin Institute of Technology, and your tutor is me!"

"Hi teacher……"
Chapter completed!