Open an aircraft carrier to fight against Japan

Liu Jinqiu explained: "Like European and American countries in this era, what kind of casting technology do they use? When the molten steel comes out, a mold is used to pick it up, and the ingot is made when the molten steel solidifies. The mold is changed one at a time. You Slow or slow? What we are going to adopt is the continuous casting process, so that the molten steel flows, the molds are connected in a series, the molten steel flows in automatically, and hundreds of steel ingots can be produced at a time! Do you think it is much faster than them? "

"The continuous casting process originated in Austria in 1958, but the idea of ​​continuous casting existed in the Han Dynasty of our country. When coins were cast, the molds of the coins were connected together, and molten steel continuously entered these molds. Get a bunch of copper coins quickly."

"However, this method also puts forward special requirements for process precision and other aspects, so only we can adopt this method in this era. As for the high-speed rolling machine, it is easy to understand. The rolling machine speed of this era is very slow. The steel that can be rolled in a second does not exceed ten meters, but our machine can roll more than 50 meters in a second!"

Lin Yuan said: "With these things, our rails should be produced soon!"

After dealing with the steel rails, Lin Yuan thought of the other two directions that Hou Zhengfeng mentioned—laser and communication, both of which need to use semiconductors, so Lin Yuan naturally thought of Su Zhengming, an expert in inorganic non-metallic materials.

Lin Yuan came to the Beijing Warship Expert Research and Development Center in Lushun. Because Liu Jinqiu led the people to develop high-performance electrical steel, the efficiency of power generation has been greatly improved. All the electricity has been turned on here. Can be carried out normally.

After passing the identity check of the guards, Lin Yuan was allowed to enter the expert research and development center. After inquiring, Lin Yuan found the place where Su Zhengming was. Lin Yuan saw a three-story building in front of him, which was limited by the construction technology of this era. The building does not have a beautiful appearance, it looks bare.

Lin Yuan walked in, the first floor was a warehouse, and every room was locked, and when he walked up to the second floor, every room on the second floor was still locked, Lin Yuan thought: "This is strange, the people here Where did it all go?"

Lin Yuan thought about walking up to the third floor, and finally saw an open door. Lin walked over, probed inside, and saw something like a stove in the middle of the floor. The top end of the stove was connected to a thick Wires, outside the wires are connected to a large cabinet with a big "Danger" sign painted on it.

Lin Yuan thought: "This big cabinet should be a transformer, then this furnace should be an electric arc furnace for purifying simple silicon. The electric arc furnace generates high temperature, so that simple carbon can reduce silicon in silicon dioxide to simple substance."

Thinking in his heart, Lin Yuan looked to the side, and he saw a bag of fine sand on the ground. The sand is silicon dioxide. It seems that he was right. This furnace is an electric arc furnace for refining silicon.

Lin Yuan leaned closer to the electric arc furnace and watched carefully. At this moment, a delicate female voice suddenly came from the door. Although the female voice was delicate, her tone was extremely domineering. The female voice said, "Why did you come in? Who told you to Come in? Get out quickly!"

When Lin Yuan turned his head, there was a young girl standing at the door, she looked a few years younger than herself, she had a playful baby face, and her shoulder-length hair was even more cute, but she was wearing a young and mature look. She looked at Lin Yuan with a frown, and when Lin Yuan was stunned, the girl spoke again: "Who let you in?"

Lin Yuan smiled and said, "Your door is unlocked, so I came in by myself."

The girl said again: "Why is your classmate disobedient? Did the teacher let you in? You came in by yourself! If you are disobedient, the teacher will not give you food!"

Lin Yuan was at a loss when he heard this, and thought to himself: "What's going on here? How did I become a classmate? Why is she still a teacher! Why can't she eat when she's disobedient? What's going on? I'd better hurry up Find Mr. Su and ask him to understand."

Just as Lin Yuan was about to ask a question, the girl rushed to the stove and asked, "Did you touch anything on the stove?"

Seeing her cute appearance, Lin Yuan really wanted to tease her, but on second thought, if he did that, the little girl would be furious, so he shook his head, and the girl stroked her chest again and again, saying: "Scared!" Kill me, this is an electric arc furnace, if you touch it randomly, there will be big troubles."

At this moment, a girl stuck her head out at the door and said to the girl, "Ms. Lu, we are here, can we start?"

The girl said to the girl, "Okay, let the students come in." Then she turned around and said to Lin Yuan, "Go back to the group of classmates and listen carefully, and don't run around in the future!"

Lin Yuan smiled and nodded, the girl raised her eyebrows, widened her eyes, and said angrily, "You're still laughing, you don't even have the attitude to admit your mistakes! See how I'll deal with you after I show my classmates!"

Lin Yuan was in a daze, when more than 20 boys and girls crowded in outside, all of them looked like they were fifteen or sixteen years old, they all squeezed in front of the stove, Lin Yuan was pushed to the back at once, Lin Yuan touched his chin Looking at the stubble on my face, I thought: "It seems that I am still young, and she doesn't see that I am older than others at all."

At this time, the girl picked up a long wooden stick, pointed to the furnace and said, "This is the electric arc furnace used to smelt high-purity silicon. Is there any student who would like to talk about the reaction principle inside?"

The girl at the very beginning raised her hand, and the girl pointed at her and said, "Come on."

The girl said: "Silicon dioxide is reduced to simple silicon and carbon monoxide by carbon at high temperature."

The girl nodded and said, "Very well, children, the teacher has another question. Tell me, can the purity of the silicon produced through this process meet the requirements for use in semiconductors?"

The boys and girls answered in unison: "No."

The girl continued: "Well, children, can anyone tell me how to refine silicon?"

Seeing that the girl was not much older than the boys and girls below, Lin Yuan couldn't help but yelled at each other, and burst out laughing with a "puchi". Pointing at Lin Yuan with the pointer in his hand, he said, "That student, let you answer this question."

Lin Yuan was distracted just now, and he didn't hear her question clearly at all. When she asked her, he subconsciously asked, "What's the answer?"

The girl poked hard on the ground with the pointer and made a "bang", scaring the boys and girls to look at Lin Yuan worriedly. The girl said angrily, "How many ways are there to refine silicon? What are they all?"

Lin Yuan couldn't remember the method of refining silicon, so he shook his head and said, "I don't remember."

The girl gave Lin Yuan a hard look, and asked the girl just now: "What's the name of this student? Write it down for me."

The girl tremblingly said: "Teacher, he is not in our class."

The girl looked at her watch and said: "There is not enough time, we can't waste time because of him, we will go to another room now, and the teacher will show you the process of pulling monocrystalline silicon."

The boys and girls cheered softly, the girl led them outside, Lin Yuan followed behind, thinking: "I even met a beautiful teacher, today is really an interesting day."