When I came to the Tiangong Workshop again, it was not the same place as before, the most obvious thing was that the flow of people was much less, and many workshops moved away, so that the merchants who were waiting outside also followed. Pen % fun % Pavilion www.biquge.info

This time, there was a very conspicuous thing, which immediately attracted Zhu Youxiao's attention, the huge dam across the tributaries of the Haihe River, like a huge beast, prostrate on the ground, eyeing people. The entire dam is made of reinforced concrete, with some gaps in the front, and huge iron turbines are installed.

At this moment, under the impact of a huge amount of water, several hydraulic turbines are rotating rapidly, and an endless stream of kinetic energy is transported to the factory on the shore through the thick iron shaft at the back, driving countless hydraulic machinery inside.

This scene is really shocking and inexplicable, and it makes people feel a strange charm.

"This is the finished product built by more than 100,000 people?!" Zhu Youxiao was a little distracted, this is the power of industry.

"Yes, the old man now likes to go there every time after dinner, which is really a magnificent and vast power." Xu Guangqi was also full of emotion.

"Let's go!" After Zhu Youxiao felt the breath that he hadn't seen for a long time, he recovered and walked inside.

"Your Majesty, it's wrong, this time it's no longer in the Tiangong Research Institute, it's in the steel mill." Seeing that the emperor had taken the wrong path, Xu Guangqi hurriedly stepped forward to persuade him.

"Yes, it's because I'm thinking badly, how can this thing of steelmaking be in the Tiangong Research Institute." Zhu Youxiao slapped his forehead, turned a corner, and walked back.

Behind the Tiangong Research Institute, is the living area of the workers' families, in the back, is the place of processing, the water-driven wood processing factory, after making various shapes of wood, directly sent to the moved carriage factory, in the back is the hydraulic printing factory, behind is the foundry for forging weapons, armor, guns, and the steel factory is in the innermost, far away from the river.

"Your Majesty, please see." After entering the workshop, Xu Guangqi did not bring the finished product, but took Zhu Youxiao directly to see the steelmaking furnace.

"This is the first open-hearth to be built experimentally." Xu Guangqi pointed to a tall object that looked like a steamed bun and said.

"This is an open-hearth?" Zhu Youxiao looked at it curiously, this shape is a bit similar to the drawings he gave at the beginning, below is a working platform built of cement, the platform is relatively good, about two or three meters in appearance, the whole open hearth is closed, only a few entrances and exits.

"At the top, there is the filler, where coke, limestone, and iron ore are all loaded." Xu Guangqi pointed to a small platform next to it and said, "Workers stand there, lift the iron up through pulleys, and then dump it from there. ”

"There is the ancient tuyere, there is the outlet, and the two sides are the regenerator, the wind comes in from one side and goes out on the other side." Xu Guangqi pointed to the small towers on both sides of the open-hearth and said, the regenerative chamber can be heated directly, and then the air passes through this side, it will become hot, and when it is blown into the open-hearth, the temperature will not drop much.

"This discharge port is an inclined iron plate, and refractory bricks are laid on the inner layer, and when it is opened, several people turn the winch next to it, use pulleys to open it, and then pour molten steel into the mold."

"Your Majesty, please see, this is the steel that has been trained." After giving Zhu Youxiao a general introduction to the open-hearth he built, Xu Guangqi took out a finished product.

After Zhu Youxiao took it, he looked at it carefully, the silver-white steel ingot looked very charming, and the weight in his hand was heavy and comfortable.

"This steel has been tested and has a high hardness, but the toughness is the worst of the three steels that came out of the experiment. This hardness and toughness are medium, this hardness is the smallest, but the toughness is excellent. Xu Guangqi handed over three more gangs.

Zhu Youxiao looked carefully, through the description just now, he probably knew the difference between these three kinds of steel, these three are carbon steel, but the carbon content is different, it is divided into low, medium and high carbon steel, its hardness and carbon content are directly proportional, and the toughness is inversely proportional.

"How's the yield?" Zhu Youxiao quickly dropped the steel and asked the most critical and core question.

"This ......" Xu Guangqi's old face turned red, a little embarrassed.

"What, what's the problem?" Zhu Youxiao said strangely, the open hearth has been built, is there any problem?

"This ....." Xu Guangqi's old face turned even redder, and Ai Ai replied, "There are still many things that the old minister has not understood in the information given by His Majesty, such as oxygen blowing and heavy oil injection, these are not very understood, so there is no corresponding equipment built in the open hearth, this is just a simplified open hearth." ”

"Yes, I don't know if it's because of this, the furnace is not always successful. Before His Majesty came, it was opened ten times, but only three were successful, and it was these three finished products. Xu Guangqi said in one breath with some embarrassment.

"Can't make it?" This reason really surprised Zhu Youxiao, he never thought that the final reason would be like this.

"What did the furnaces that didn't work out make?" He asked, rather curiously.

"Pig iron, very brittle pig iron, it breaks when people break it hard." Xu Guangqi replied quickly, "But these ten times have also made us sum up a little experience, and in the three successful times, wrought iron was added, especially this furnace," he held up the low-carbon steel with the best toughness, "all of which are smelted with wrought iron." ”

"I kind of understand what's going on." Zhu Youxiao was a little surprised, his open-hearth furnace was heated with coke, and did he blow in oxygen for decarburization, but the carbon content in the iron was too high, and the purpose of steelmaking was not achieved at all, so it failed. The success of adding wrought iron is due to the fact that the carbon content of wrought iron is very low, and after a comprehensive review, the carbon content in the positive furnace iron is balanced, so it can be successful.

After sorting out the language, Zhu Youxiao explained this principle to Xu Guangqi in detail.

"This ...... Is there carbon in iron? However, Xu Guangqi opened his eyes and glared at Zhu Youxiao, not believing this, "How did this carbon get into it?" He took the two pieces of steel in his hand and drilled back and forth with each other, "How can this get in?" ”

"......." looked at the other party's childish movements, Zhu Youxiao suddenly felt a headache, how to explain the matter of the elements to the ancients.

"That's what I told you. In the whole world, there are many substances, each of which is composed of very fine elements, and there are many elements of time, no less than hundreds, which are combined with each other to form a variety of substances, such as steel, which is composed of carbon and iron. Zhu Youxiao pondered the words and said slowly.

Hearing this explanation, Xu Guangqi's eyes widened again, and his eyes were almost popping out, "The things in the world, well, are substances, isn't this substance composed of gold, wood, water, fire, and earth?" ”

"Gold, Wood, Water, Fire, Earth....." As soon as the five elements of the rhetoric came out, Zhu Youxiao was dizzy again, how to explain this, could it be that he yelled at him directly, the statement of the five elements was false, and the Taoist priests made it up to deceive people. Well, this is indeed a lie, but in an era where this statement is generally believed, Zhu Youxiao's elemental theory is false.

Zhu Youxiao kept rubbing his head, worrying about how to explain to Xu Guangqi, but the other party was not in a hurry, staring at him and waiting quietly. Behind him, there was also a young man, who listened quietly without blinking. said that he was young, that was compared with Xu Guangqi, looking at his appearance, he was also in his thirties.

Thinking about what the emperor said just now, carbon enters the iron, and everything becomes steel, this statement made his eyes shine, although he didn't know if it was true, but with his experience in the steel mill during this time, he intuitively felt that this might be the truth.

It's just that the teacher doesn't seem to believe it, and he looks a little unacceptable. With a roll of his eyes, he quietly ordered a worker to go and fetch something.

The scene was still quiet, the emperor thought bitterly, and the teacher waited quietly. After a while, the worker came over with a glass of water and a piece of brown sugar.

"Teacher, look." He called Xu Guangqi softly, then lifted the quilt in front of him and threw the brown sugar into it. The quilt is made of glass, so you can clearly see the small pieces of brown sugar melted into it.

"Teacher, I think what Your Majesty said is probably similar to the principle of brown sugar melting into water." He explained with a smile.

"Yes, that's right, that's it, in the high temperature, the iron melts, the carbon melts in, and because there is too much carbon, it becomes pig iron with a high carbon content, which is very brittle." Zhu Youxiao was overjoyed, looking at the young man in front of him, how he liked it.

Finally, he couldn't help but ask, "Good, you're good, what's your name?" ”

"Weichen Song Yingxing, whose name is Chang Geng, is now the director of this steel plant." Song Yingxing couldn't hide his joy and replied, now this scene, anyone can see it, the emperor's attitude towards him is satisfied, too satisfied, this is a talent, it must be important.

This is the mentality of Zhu Youxiao now.

"Song Yingxing? You are Song Yingxing! You're good. Zhu Youxiao suddenly realized that he was Song Yingxing, and he was still a student who asked Xu Guangqi to accept him, but he didn't expect to come out at this moment and solve his own disaster.

"So that's the case, the old minister probably understood. It's just, Your Majesty, is this element really nothing? Xu Guangqi did not forget his original intention just now, and asked vigorously.

"I have the mandate of heaven, and this knowledge is naturally given by heaven." Zhu Youxiao was annoyed by his questioning, and finally couldn't help it, turned on the pretending mode, his expression changed, his face was sacred, his fingers were raised, he pointed to the sky, and said very godly, "This is the knowledge that accompanies me when I was born, it is the revelation of the sky, and it is the law of the operation of the way of heaven." ”

"This is the way of heaven."

This very tall word, the scene was suddenly solemn, Xu Guangqi's hand that had been twisting his beard shook violently, and directly tore off a few beards, and he grinned in pain.

The others were also extremely surprised, their eyes widened, and they looked at the emperor deadly, but they didn't expect to come to such an astonishing conclusion in the end.

[Author's digression]: I am about to be evacuated from the embankment, and I can finally return to normal work and life, happy !!