At four o'clock in the morning, that is, at four o'clock in the morning, it was the darkest time before dawn. Most of the common people were still dreaming, but the Ganqing Palace in the Forbidden City was already brightly lit.

Qin Mingyue led a team of palace maids and toiletries into the emperor's bedroom. At this time, Zhu Cijiu was sleeping soundly, and his little mouth was clattering, and he didn't know what delicious food was eating in his dream. Qin Mingyue walked to the dragon bed lovingly, bent down the willow waist, and gently called in the little emperor's ear: "Your Majesty, it's time to get up, the morning court time is coming."

Zhu Cijiong's biological clock was also relatively punctual. As soon as this time came, he was about to wake up. When he heard someone calling, he immediately opened his eyes. A beautiful face reflected in his eyes. It was Mingyue! He suddenly felt energetic, opened his hands and hugged Qin Mingyue and said to him.

Qin Mingyue picked him up with a smile, helped him put on his court clothes with the help of two palace maids, and then served him to wash up.

As soon as everything was cleared up, Cao Huachun's respectful voice sounded at the door: "Master, the dragon chariot is ready."

Zhu Cijiu directly opened his arms when he heard this. Mingyue beside him squatted down very well, gently picked her up, slowly walked to the dragon chariot outside, and then gently placed him on the dragon chariot.

At this time, Cao Huachun, who was standing beside him, looked over with a consultation look. Although Zhu Cijiu was a little reluctant, he still nodded slightly.

Cao Huachun immediately said loudly: "Go up."

Eight eunuchs knelt on one knee immediately stood up, and the Jinyiwei in front and behind quickly raised the banner in his hand, and the group walked towards the Huangji Palace in a mighty manner.

Watching the Dragon Chariot leave the Ganqing Palace, Qin Mingyue turned around and walked towards the side hall where he lived. The morning court lasted at least an hour, and this period was a good time to practice swordsmanship.

She has been in the palace for three days. When her aunt Qin Liangyu asked her to come to the palace to protect the little emperor, she was so worried that she hadn't grown up yet. She suddenly asked her to take care of the child, but she really didn't know how to take care of her.

Fortunately, the little emperor is five years old, so she basically doesn't have to worry about anything. She just doesn't like walking and lets her carry wherever she goes. Moreover, the little emperor is so kind to her, so he specially arranged an independent side hall for her next door to the bedroom, and he directly appointed her as Shanggong. This Shanggong is the chief supervisor of the palace maid and a fifth-rank official. However, this little emperor seems not very satisfied, and he thinks that his rank is too low.

She has slowly adapted to the life of the palace, and her aunt Qin Liangyu has led the officers and soldiers of Shenji Camp into the city and is stationed in the imperial city outside the Forbidden City. Every day, she will lead her two brothers to see her whenever she has free time, and she will be even less panicked with the comfort of her relatives.

She felt that this kind of life was pretty good, and there was nothing to do all day long. She just wanted to accompany the little emperor, and at most she would just hold him around. Of course, she was not disgusted with such a cute child. After being together for a few days, she felt getting closer and closer. If she had known that she would hug the child when she entered the palace, she wouldn't be so worried. Just hug him, who wouldn't be able to hug the child!

Of course, these are all Qin Mingyue's feelings. Our little emperor Zhu Cijing didn't think so. Since Qin Mingyue entered the palace, Zhu Cijing suddenly felt that the entire palace had become more and more friendly. He used to feel like he lived in the Palace Museum and was just a tourist, but now he feels that the Forbidden City is like his home.

Every morning, I can see Mingyue, a peerless beauty, and except for going to court and sleeping, both of them are inseparable from the rest of the time. Zhu Cijing felt like a young man in love, and he couldn't help but take the initiative to stick to it, pretend to be stupid and cute, just to make the beauty smile. He even pretended to be young without any limit, refused to walk, and let Qin Mingyue carry him wherever he went.

If Qin Mingyue had come to the palace before he entered the palace, he would definitely roll his eyes in anger. What kind of hug? I am in my twenties, do you think I am a child? Now he doesn’t think he is in his twenties. He is obviously only five years old, so it’s not a problem to pretend to be three or four years old. Anyway, I am not good at walking yet, so I have to carry Mingyue with me!

............

Happy times are always short. Zhu Cijiu has been stuck by Qin Mingyue for only three days, and Xu Guangqi came to report that the first drilling machine had been completed.

Zhu Cijing suddenly woke up. Now is not the time to be kind to me. The Ming Dynasty is still waiting for him to save him. He cannot learn from King Zhou of Shang and Emperor Ming of Tang, and to make the country laugh and lose all his country. What is "beacon playing with the princes"? What is "a ride on the red dust concubine laughs, no one knows that it is lychees coming." That is all lesson!

Besides, he can't do anything except make a beautiful woman smile. After all, he is only five years old, and his body does not allow it!

It was still important to do the important thing, so he shamelessly opened his arms to Qin Mingyue next to him. Qin Mingyue naturally knew what he wanted to do, so he immediately squatted down, picked him up easily, and followed Xu Guangqi to the side hall where the drilling machine was installed.

Xu Guangqi walked in front and muttered: "Why did the emperor suddenly not know how to walk again? It was no problem to run away before!"

Zhu Cijing naturally didn't know what he was muttering in his heart. Even if he knew, he wouldn't bother to pay attention. He was now in Mingyue's arms explaining the drilling machine to her. The two of them rubbed their ears and cheeks, and whispered in a low voice, so they were not intimate. There was a kung fu in charge of the old man in front of him.

Soon they arrived at the side hall, and Bi Maokang and others had already surrounded the drilling machine, waiting for him to order the experiment to start.

Although Qin Mingyue had heard him introduce it on the road, she was still shocked when she saw such a strange thing for the first time.

This is simply a bronze monster!

On the left is a huge gear with a pinion, and a round cylinder is connected to the cylinder, and a copper pot with boiling water.

On the right are two huge copper blocks that are nearly half a meter wide. There is a groove in the middle of the copper block, and a solid copper rod of two fingers thickness is sandwiched in the groove.

The left and right sides are connected to a horizontal line by two round rods as thick as arms. These two round rods are fixed to one meter high through two thick wooden boards. There is also a wooden table below, with a rack fixed on the table, and there is a shaking gear on the rack, which is connected together with the copper block on the right through a circular axis.

Zhu Cijiu looked carefully and felt that there should be no problem, so he ordered: "Let's start."

Upon hearing this, Xu Guangqi stepped forward and opened the steam valve of the new work. He sang all over. As the cylinder moved, the drill bit immediately rotated rapidly.

Song Yingxing carefully turned the gears on the workbench, and the copper pillar slowly approached the drill bit. A slight friction sound of "sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, sir, and slid into the copper pillar. The drill bit was immediately turned off. Song Yingxing immediately turned off the steam switch, skillfully replaced a drill bit, and continued to drill.

It took about a quarter of an hour to change three drill bits, and the half-meter-long copper pillar was finally drilled through.

Song Yingxing opened the clip and clamped the copper pillar into a bucket of cold water next to it with iron pliers. After cooling it for a while, he couldn't wait to put it in front of him. Looking at the inner wall of the copper tube, after looking at it for a while, Song Yingxing said excitedly: "The inner wall is much smoother than the hand drilled, and such a barrel will hardly explode!"

Zhu Cijing was not concerned about this issue. He was concerned about the drill bit: this drill bit is too useless. You have to change three copper rods if you drill a copper rod. If you drill an iron rod, you must not change more than ten!

He asked Song Yingxing and found that the drill bit was made of high-carbon steel copied from the steel copying method. There were too many impurities inside, and the carbon element distribution was uneven. After quenching, the hardness could not meet the requirements of the tool firm.

What should I do? This gun cannot be made of bronze. One or two can be done. If I make 10,000 or 20,000, or even 100,000, Is there so many bronzes there? Besides, the bronze material is soft and is easy to deform after being heated. When it is deformed, the gun will easily explode. It is really not suitable for use as a barrel.

He looked through his mind carefully and found that there was a method of smelting steel, and it was a simplified version of the blast furnace steelmaking method in later generations. As a process engineer, he naturally knew what blast furnace steelmaking is. The steelmaking furnace provided by this system is not as big as that of later generations, and there is no need to be wrapped with steel plates like in later generations. Just use clay as the insulation layer and build a thick small blast furnace.

Such a small blast furnace can process one or two hundred kilograms of steel at a time. The process is relatively simple. Add a certain proportion of charcoal and coal to fully burn the pig iron, and add an appropriate amount of limestone and ompheite as additives for impurity decomposition to create high-quality low-carbon steel. Then, repeatedly beat and carburize with the popular Han Dynasty method of thirst refining, which can produce high-quality medium-carbon steel and high-carbon steel.

Low carbon steel has good flexibility and can be used directly to build a barrel.

Medium carbon steel has moderate flexibility and can be used as springs and shrapnels after quenching.
Chapter completed!