One morning in late autumn, in the Qinian Palace, King Ying Zheng of Qin was making the final preparations for the attack on Zhao after destroying Han. After discussing some details of food and logistics again, King Ying Zheng of Qin was about to scatter.

Suddenly, Fusu said, "Father, my son has something to say!" King Ying Zheng of Qin was stunned. He knew that his son usually didn't speak much, but as long as he spoke, he would have shocking words. So he smiled and said, "Wang Er, what are your opinions?"

Fusu said respectfully: "Father, I am still young now and cannot command my troops and horses for my father to fight to kill the enemy. But I want to go deep into the army and the army building (arsidy) to understand the military system and weapons manufacturing methods of our Great Qin for future use. So I ask my father to send a pass token so that Fusu can freely enter and exit the army and the army building!"

"Oh, that's it!" King Ying Zheng of Qin saw that Xiao Fusu was still young after all, and although he had attended the court meeting, he had never held any actual position. He thought Fusu felt depressed and wanted to go out of the palace to relax, so he agreed: "It's good. Only by going deep into the army can you understand me and understand the strength of my Qin army! After the court was dispersed, go to the Nanshu with your father to get the token!" "Yes!" Seeing that the King of Qin agreed, Fusu couldn't help but smile with joy!

When the ministers saw that Fusu was so young, they knew to go deep into the grassroots and experience the hearts of the people. However, Zhao Gao, Li Si and other party could not help but gradually become prepared for Fusu, who performed very well!

*******

The next day, a group of carriages slowly left the palace and headed straight for the central Qin army west of Shanglinyuan. Apart from the nine people who accompanied this time, there were only coachmen Che Qiong and Fu.

Fusu was very excited at this time. After all, he was about to witness the true face of Lushan, the most powerful weapon industry in the world today! Think about the Qin State defeating the iron weapons of the six countries with seemingly backward bronze weapons, and at most, the Qin State's military structure had to supply millions of Qin troops at the same time. How many amazing secrets were hidden in the Qin State's military structure!

When we arrived at the large-scale central military construction, the large-scale and endless building complex shocked everyone: It is worthy of being the central military construction of Qin, the scale is really amazing! At this time, the military construction engineer (equivalent to the factory director) was already waiting at the door. When Fusu got off the car, the machine quickly came up, bowed down, and said respectfully: "Small soldier construction engineer engineer, please see the young master!"

Fusu smiled and said, "No need to be polite. I will come to disturb the craftsmen every day in the next few days. Just don't be annoyed!" The man said with a panic, "How dare you? How dare you! The young master is willing to come to inspect our army's construction. It is our honor to build five thousand troops. How dare you say it is annoyed!" Fusu was stunned when he heard this, "More than five thousand people, your work is so big?"

The machine replied proudly: "Yes, this craft is the largest military building in Qin State. It is divided into five major craftsmen, with more than 4,000 craftsmen and a thousand military supervisors! The total number is more than 5,000!"

"Oh, that's it!" Fusu couldn't help but be surprised. Then he thought for a while and said to Huo Feng and the four girls: "These weapons are all right, Wuxin and others, just follow me. You girls are not very interested, right? Why don't you stay outside or take my token to go hunting in Shanglinyuan!" Huo Feng and the other four blinked their charming eyes and smiled meaningfully: "No, have you forgotten our origin? We are all very interested in Qin's weapons!" Fusu patted his head: I almost forgot that they are disciples of the Mo Sect, and these strange things are the best things in the Mo Sect.

Fusu, whose eyes flashed brightly, quickly made a decision, so he said to the machine: "Then a laborer will lead us to take a turn!" "Abide by the order!" So, the respectful worker led Fusu and the others into the vast and top-secret weapon kingdom of Qin.

*******

The first craftsman's room: in the Jinshi room.

As soon as Fusu and his group entered the huge production workshop, they immediately felt a hot wave of heat coming to their faces. Although it was late autumn, sweat immediately appeared on their foreheads, as if they were entering a steamer. Fusu looked around and saw that in the huge workshop, countless men from Qin were naked, wearing only knee-length shorts, sweating profusely in it. Huo Feng and the four women couldn't help but blushed on their faces, looking delicate and radiant!

It is roughly divided into three categories: the first type of people are furnace makers. They guard the burning fire and use drum and lighters to continuously control the hot fire. On the fire are crucibles, and there are only pieces of densely packed ore in the crucible. Under the high temperature smelting of the fire, the second type of people is the transfer maker who is responsible for constantly adding ore and transferring gold and water. The third type of people is the ready-made maker who is responsible for purifying, cooling the gold and water transferred from the transfer maker to form a blank!

Looking at the scene of the heat, running continuously and orderly, Fusu was deeply shocked: "This tacit understanding of cooperation and the skillfulness can be compared with the strict worker ant colony. What a hard-working Chinese man!" Then he turned around and asked the machine loudly: "What kind of ore is smelted here?" The machine also replied loudly: "It's mainly bronze, and then tin, and iron is rarely used!"

Fusu nodded and said, "What are the uses of copper, iron, and tin?" The machine replied, "Bronze and tin are mainly used to form alloys and forge various weapons. The reason why our Qin State has the essence of weapons in the world is because there is a secret to the mixing ratio of bronze and tin!" Fusu felt itchy in his heart and asked, "Can you tell me?"

Ji smiled and said, "The young master holds the token of the king, so he naturally has the right to know, otherwise even the general will not have the right to know. The proportion is like this. We have a few sayings here:

Six parts of the metal and tin are one, which is called the harmony of the bells and tripods;

Five points of the gold and tin are one, which is called the axe and pound;

If the gold is four parts and the tin is one, it is called the equilibrium of the sword and halberd;

Three parts of the gold and tin are one, which is called the uniformity of the big blade;

Five points of the metal and tin are two, which is called the Qi of the arrows of killing.

Two parts of the metal and tin are one, which is called the Qi of Jingsui!

Meaning: If there are five-point bronze and one-point tin in the six-point gold water, then this kind of gold water can be used for bells and cauldrons, because the hardness of this kind of gold water is poor; if there are four-point bronze and one-point tin in the five-point gold water surface, this kind of gold water can be used for sword casting, because the hardness and flexibility of this kind of gold water are relatively moderate; if there are three-point bronze and one-point tin on the four-point gold water surface, this kind of gold water can be used for spears, spears, beryllium, halberds and other long weapons, because the hardness of this kind of gold water is relatively high; if there are two-point bronze and one-point tin in the three-point gold water, this kind of gold water can be used for some heavy weapons, because

Their hardness is higher; if there are three-quarters of bronze and two-quarters of tin in the five-quarters of gold and water, this kind of gold and water may be used as small weapons such as arrows, because the hardness of this kind of gold and water is too high and cannot be made larger at all; if bronze and tin in the two-quarters of gold and water each account for half, it can only be used for chiseling, so it is used for others, because this kind of gold and water has the highest hardness and cannot be used for other things! These gold and water ratios are the secret of my Daqin. The swords, halberds and other weapons cast in this ratio are sharp armor in the world!" The machine said proudly, obviously very proud of his work!

"Oh!" Fusu couldn't help but nodded secretly when he heard this historical secret. Fusu also learned in chemistry courses: In terms of copper-tin alloy, the amount of tin determines the hardness and strength of bronze products. The more tin, the harder the bronze products will be, but they will also become brittle. This precise proportional combination has been verified by advanced science in modern times. When ancient science and technology were underdeveloped, these valuable experiences were summarized by many craftsmen in the Qin Dynasty for many years. They also have their contribution to defeating the six countries!

Suddenly, I remembered the use of metals such as iron. Before I could say it, I asked, "What about iron? What is iron? What is it usually used for?" The machine smiled and said unconsciously: "Is iron? It is usually mixed with some other ore to make plows, hoes, palladium and other agricultural tools. Our Qin rarely uses iron to make weapons. The main reason is that the iron is too brittle and easy to break and fragile, and it is not suitable for direct use forging, let alone to make weapons. However, in the production of iron weapons, the six Kanto countries made better than us, but the iron weapons they made were far less sharp and durable than our bronze weapons! Therefore, we Qin can dominate the world with the advantages of weapons and armor!"

"Oh, so that's it!" Fusu thought to himself: It seems that the development of iron tools is still very immature, and the utilization of iron tools is still at the early stage of pig iron. It may still not be able to increase the temperature of the furnace fire, so it is not enough. It is estimated that it will be possible to develop a relatively mature ironmaking process until the time of Emperor Wu of Han. It is still early. As for the iron used by gods such as Mo Xie, the iron used by gods is not ordinary, but meteorites that are rarely found in nature and cannot be produced on a large scale. Remember, according to modern experts, the furnace temperature is about one thousand degrees, and iron ore is estimated.

It was refined into mature iron, but this iron is too soft and has poor usability, and has no practical value; and when a blower is used to increase it by about 200 degrees, you can get pig iron. Generally, pig iron can only be used to cast general iron farm tools, etc., because it is too brittle and easy to fold, and it still cannot meet the standards of weapons. Only after softening, forging, quenching and other processes on the basis of pig iron can it be used to make weapons. It seems that the current production technology of Qin iron tools is still in the stage of pig iron, while the six Kanto countries have further advanced than Qin and mastered the preliminary pig iron finishing technology!
Chapter completed!