Siheyuan starts from a better life

Chapter 724, Carbon Fiber
Jiang Yan didn't know why he was so enthusiastic about the two little guys' schooling today, so he looked at Yan Bugui a little weirdly.

Yan Bugui saw his curious eyes and immediately understood what this brat was thinking. He said helplessly: "What's that look in your boy's eyes? I know that in your eyes, Lao Yan I'm a bit stingy, but at least I'm a teacher. I can't do anything about our children's affairs, but you guys must not question my professional ethics. Otherwise, don't blame me for being impatient with you. I'm not afraid of delaying these two. Is it a good seedling?"

Hearing what he said, Jiang Yan understood. He said to Yan Bugui sincerely for the first time: "I'm sorry, Teacher Yan. I thought too much and judged you as a gentleman with the heart of a villain. .”

"Actually, I have certain considerations in not letting them go to school so early. As you know, children nowadays are a bit wild and they are always ready to fight. I don't want them to go to school so early because I am afraid that they will suffer a loss. In fact, after two It doesn’t matter if they go to school every year. I can teach them some things at home. I still know the importance of education.”

Seeing that his kind intentions were actually declined, Yan Bugui shook his head helplessly. If you want to say that he is careless, then you really underestimate Yan Bugui. He is now an acting teacher and is not officially a teacher. Teacher, if the school knew that he brought them two little prodigies, I would probably get rid of him as an agent.

Also, I can bring two prodigies, which will give me face in front of my colleagues, but it seems that my plan to show off in front of my colleagues is about to fall through. Since other parents have talked about it to this extent, how can I still do it? What else to say, I can only say goodbye and leave.

However, Jiang Yan didn't let him leave empty-handed this time, and casually stuffed the two taels of scented tea on the table into his hand, which also put the smile back on Yan Bugui's face.

The arrival of two little daughters did not make Jiang Yan as busy as he was when he became a father for the first time. On the one hand, Aunt Yang, the old lady, Qin Huairu and others were helping at home, while on the other hand, Yiyi and Yue Hao were usually at home. He can also help take care of the two little sisters, which makes everyone who knows about it in the courtyard marvel. They know that the two children of Jiang Yan's family are sensible, but they didn't expect to be so sensible.

Children in other families also have the eldest child helping their parents take care of their younger siblings, but that has to wait until they are seven or eight years old and become sensible. Anyone who has seen a five-year-old child can help his parents take care of his younger sister.

In Yan Bugui's words, these two children are precociously intelligent and naturally very different from other children. They will definitely have great potential in the future, so the reputation of these two little guys in the yard becomes even louder.

Now they not only envied Jiang Yan's family for their good food and clothing, but also envied their children's good growth and good education. When they talked about the two little guys, they spoke with a little more admiration. sincere.

Whenever Jia Zhang heard these words, she would secretly curse in her heart: What a fart, those are two little bastards who have been evil since childhood.

She had already known the true situation of that day from Banggeng's words, but because her grandson was plotted by a five-year-old kid, if this matter was revealed, Banggeng would not be able to hang out in the yard. , and she also knew the harm of provoking Jiang Yan, so she gritted her teeth and chose to hide the truth.

With the help of others, Jiang Yan was able to free himself completely and once again devoted himself to research and development. This time Jiang Yan drew a motorcycle similar to the Jialing 70, but strictly speaking, this motorcycle was not It's not a regular motorcycle, it's just a moped at best. However, this type of motorcycle looked a bit ugly in history, so Jiang Yan planned to redesign it.

As for why he came up with the idea of ​​producing a motorcycle, it was because his wife complained to him a few days ago that her bicycle moped was too ugly and added a small engine and it was inconvenient to take care of children, so Jiang Yan also thought of making this motorcycle as a A gift from my wife during her confinement period. However, the overall structure of this motorcycle is not difficult, and Jiang Yan has prepared the relevant drawings long ago. However, this engine puts Jiang Yan into a problem. It's not that it can't be built, but how to choose the engine.

Originally, Jiang Yan wanted to use a four-drive small engine, but after some calculations, he felt that using such an engine on a small moped was a bit wasteful. After thinking about it, he decided to use a two-drive engine, and the one with an electric hybrid.

There is also the material of the entire motorcycle. Not surprisingly, the frame should be made of stainless steel, but the overall weight of the vehicle will be too heavy. After optimization, Jiang Yan mainly used aluminum alloy for the entire motorcycle, and the rest was made of plastic. , but the plastic was too brittle, so after much thought, Jiang Yan came up with the idea of ​​using carbon fiber to combine the plastic.

You must know that we have begun preparing for the research and development of carbon fiber technology as early as 1962, and even used polyacrylonitrile fiber to develop it. For this technology at that time, the knowledge we had not thought about was very poor even if we had it, so these studies did not achieve success. And when Yingjiang and Tiaoba were eyeing us, they were unable to break through in this regard.

Initially carbon fiber was used only in the defense industry and the technology was kept secret. In the early 20s, my country established the Carbon Fiber Research Institute and began research on related topics. In 70, under the leadership of General Zhang, my country achieved the localization of high-performance carbon fiber and broke through the technological blockade. However, there is still a big gap between the United States and Japan in terms of carbon fiber quality and cost.

The main use of carbon fiber is as a reinforcing material compounded with resin, metal, ceramics and carbon to produce advanced composite materials. Carbon fiber reinforced epoxy resin composite materials have the highest specific strength and specific modulus among existing engineering materials.

However, the carbon fiber Jiang Yan wants to create is the mid-range product from his previous life. This is one of the two mid-range and bottom-end formulas that Jiang Yan and his company purchased at a high price when their factory was manufacturing other plastic equipment, but it is still quite advanced now. Yield.

Jiang Yan wants to use carbon fiber and resin to make the fender of this motorcycle, so that the fender is light and has a certain impact.

As for the paint and other decorations on the motorcycle, Jiang Yan needs to think carefully about it. This is a gift for his wife. What can he do if he doesn't care about it? So this time Jiang Yan designed it extremely well. serious.

In his free time, Jiang Yan stood by the window and thought. In addition to the car assigned to him by the state, his home now also has a three-wheeler and two bicycles. It is estimated that after the motorcycle he designed appears, the family's The bicycle has completely become a decorative item, and how to deal with it is a headache.

In these days, it is a rare thing for a family to have a bicycle. Now that a motorcycle has appeared in my house, it seems a bit suspicious of being a capitalist. In the next few years, my house will not be ransacked because of this!

Thinking of this, Jiang Yan was startled, and then Jiang Yan felt relieved. Let alone himself and the old lady, Jiang Sirui's own identity and a room full of calligraphy and paintings, there should be no one who dared to touch him, so Jiang Yan thought Come on, just be high-profile! Anyway, he didn't steal or rob, they were all things he worked hard to get. He wanted to see who was so short-sighted.

(End of this chapter)