Restarting life in Siheyuan

Chapter 171 Researching new materials

Back to the dormitory, Chen Zhihe and Fang Jiaming were there.

"Everyone has run away? You two are the only ones looking after the house."

"We've all gone to the playground to learn how to play ball. Quickly open your bags and see if you can bring something delicious for everyone. I seem to be able to smell the fragrance."

In just a few days, Chen Zhihe and Fang Jiaming had become very familiar with Zhu Xuefeng, and they were no longer welcome.

"Look at how greedy you are, why don't you wait for them? Besides, didn't you say that the food in the cafeteria is better than the food at home?"

"Now I know that if you eat more, your stomach will be more motivated and you will get hungry faster."

"Haha, you are the only one who can make it up."

Zhu Xuefeng didn't prepare anything, so he brought a bottle each of chili sauce and mushroom sauce for everyone to eat, and some snacks he bought in the afternoon. He secretly roasted a few sweet potatoes and hid them. It was not appropriate to bring the others.

"Let's save the snacks for everyone to eat together. This sauce is so delicious. Why am I hungry again..."

"Between comforting my stomach and waiting for them, I obviously sided with my stomach. I decided to taste the sauce now."

Fang Jiaming took out his chopsticks, dipped in some roasted chili sauce, tasted it, and couldn't help but stick out his tongue.

"It's too spicy. Do you northerners eat it so spicy? Oh, oh, oh, I can't stand it. I can't stand it."

Seeing Fang Jiaming's embarrassment, the two couldn't help laughing.

"Come on, come on, use this to relieve yourself."

Zhu Xuefeng simply took out the roasted sweet potatoes and threw one to each person. He originally planned to satisfy everyone, but now it became an emergency.

"Try it, it's just baked, it should still be warm."

"Wow, good food. It tastes best only when grilled. I'm afraid of eating it any other way."

The two of them didn't care about the image. As expected, it was still warm, with the outside of the skin still a little sticky and the sugar baked out.

"What are you eating secretly? It's so delicious, sweet potatoes, right?"

The door was pushed open immediately, and a few people who had been sweating on the court came back. Except for Zhou Jidong, who was reserved for a while, the others were about to get started.

Zhu Xuefeng quickly took out the bag and took out the sweet potatoes.

"Boss, don't grab it. Everyone has it. Yours is here..."

"Lao Wu, close the door. The guy next door came back with us. What if..."

Before he finished speaking, several people came in from the door, smelling the aroma of roasted sweet potatoes, and came in sweating profusely.

"You are eating alone in your dormitory. Take it out and share it with your revolutionary comrades."

As long as someone takes the lead, you can imagine that metal physics is like a monk class, which makes the whole class quickly get together.

We usually don't tell each other apart, and we won't be polite when we have something to eat. We call it euphemistically and enter GCism in advance.

Zhu Xuefeng shook his head and could only watch from the side. A dozen large animals were squeezed into the small dormitory, and these sweet potatoes would probably have to be eaten even with their skins.

Normally he looks polite and polite, but now that he's acquainted, everyone looks like a bandit.

It took a while for it to quiet down. Everyone looked at the messy table and laughed, scrambling to eat everything.

"The food is obviously better than at home, but why do I always feel hungry..."

"Me too…".

"Thanks, come back next time, haha." Finally leaving, Fang Jiaming took out snacks and sauce from under the table.

"Fortunately, I have good eyesight and quick hands, otherwise the real treasure would definitely suffer."

"I said it was gone in the blink of an eye, but you have to be quick, old man. Put it away quickly and take it out for dinner tomorrow."

...

After cleaning up and chatting for a while, everyone went to study separately. The dormitory seemed very quiet. Zhu Xuefeng was also studying hard. The students studied very hard. Except for necessary exercises and activities, they raced against time for the rest of the time.

It is another five-year plan construction period. Although it is still very difficult, we can all feel that the entire country is booming and prosperous. The country calls on young people to march into science. Everyone is full of expectations and longing for the future, and they all want to contribute to the future. Contribute to development.

According to everyone, with such good learning conditions, if I don’t study hard, I won’t be able to afford daily food.

In this environment, you can't even think about studying. This is one of the reasons why Zhu Xuefeng runs out every night.

...

I attended classes all morning, all of which were "General Physics" from the People's Education Press. This course has many branches, including molecular physics, thermodynamics, optics, electromagnetism and many other parts.

The molecular physics class in the morning gave Zhu Xuefeng some inspiration and brought back some memories, so he hurried to the library to look up information.

As expected, the ductile iron technology was found. This technology, which has been vigorously developed decades later, indeed has information now. Zhu Xuefeng borrowed several books at once. He had to study these carefully.

The information is very clear. Due to its excellent properties of high tensile strength and good toughness, ductile iron entered large-scale industrial production in developed countries in 1948.

What surprised Zhu Xuefeng was that the country had successfully developed ductile iron in 1950, but it was not very mature. It used pressure plus magnesium spheroidization to treat ductile iron with pure magnesium. In 1958, rare earth magnesium ductile iron was also developed. cast iron.

In fact, the level of national scientific and technological research during this period was not far behind the world. The research on many projects was still at the forefront of the world, especially the research on some new technologies, even ahead of Lao Mei and Mao Zi. It’s just that future generations are not clear about it. .

The research on ductile iron should have started very early, but it has not yet been industrialized, let alone ductile iron products. In the final analysis, it is still technically immature.

This technology has been widely used in later generations, including trains, cars, tunnels, bridges, sewer pipes, telephone poles, etc. There are countless.

The current development of high-power engines is not going smoothly, and materials are also an important constraint. The broken axles of heavy-duty trucks are all due to material reasons.

Zhu Xuefeng has long wanted to change the material of the engine. Unfortunately, aluminum alloy seems to be difficult at present. One is the restriction of casting technology, and the other is the shortage of materials. These are not problems for ductile iron.

The cast iron engines commonly used in later generations include silicon, carbon, manganese, sulfur, and phosphorus. Although I don’t remember the specific proportion, due to work reasons, I know that it is within a few thousandths to 5.00%. This has a clear direction. Just stop experimenting, it's better than others groping blindly.

I am currently studying metal physics, so it makes sense to do research and experiments in this area. There is also the Materials Research Institute of the steel rolling mill, which should also be able to provide some help.

Having found a short-term breakthrough, Zhu Xuefeng was very excited. The metal physics in the Department of Physics really came to the right place by accident.

During this period, Zhu Xuefeng, in addition to going back to the courtyard to practice martial arts at night, and sometimes going to the laboratory to do some research, spent all his energy on researching ductile iron technology, forgetting to sleep and eat like his classmates.

During this period, I went to the rolling mill and talked with the factory director and deputy director Jiang about the international application of ductile iron technology and the current domestic situation.

Secretary Chen was thoughtful for a while before speaking.

"I have an impression of what you are talking about. The replacement of steel with iron was strongly advocated in the past few years. It should be the case, but it has not been implemented."

"The technology is not yet mature. The United States and Europe have used it. The annual output of ductile iron has exceeded [-] tons. We still don't have a kilogram."

Zhu Xuefeng also introduced the development prospects. This must be deceived. Without the support of the steel rolling mill, Zhu Xuefeng alone has no hope. It is not a one-person thing at all. It must be the strong support of the team and the back.

Everyone was silent for a long time, and the smoke had filled the whole room. It seemed that the leader was under great ideological pressure.

"Then the car you mentioned..."

Director Yang still couldn't forget Zhu Xuefeng's original idea. What would happen to the cars behind him if he went to research materials.

(End of this chapter)