"What's wrong with those iron tools?" Fu Ge hugged Yu Ji tightly, but couldn't help but feel curious.

"Our iron sword and iron halberd are not as hard as the weapons created by the Kwantung countries. Back then, Emperor First Emperor sent general Li Xin to lead 200,000 soldiers to attack Chu State, but was defeated by Chu general Xiang Yan using the method of luring the enemy into depth. In this defeat, the soldiers who served as the vanguard of Li Xinjun used the iron sword with the name of my second brother inscribed. Most of these iron swords were broken and could not be used in the fight against Chu Sword." Shen Tu Da said. The ancestors of the Shen Tu family were craftsmen made by the Qin soldiers for generations. When they reached the generation of their brothers, Shen Tu Da continued to specialize in the creation of bronze weapons, while Shen Tu Er took another path - iron weapon exploration.

Fu Ge was deeply impressed by the battle between Qin and Qin in the 23rd year of the Qin Dynasty. This was not because he had a good memory, but because this battle was the only major defeat during the Great Qin Unification War. It was precisely because of this that there was a folk proverb in Chu that "Even if there are three households in Chu, Qin will definitely be destroyed."

During the time when Fu Ge asked Shentu, Shentu did not raise his head, as if these things had nothing to do with him. He just skillfully used his left hand to hold the pig iron block onto the hot charcoal. After a period of time, a layer of carbon powder was seeped on the surface of the block, and he immediately swung the hammer to take out the block forging. In this way, the block became carburized steel sheets, and the flattened steel sheets were folded and continued to forge.

Fu Ge has never seen this extremely primitive iron smelting technique. Compared with this modern blast furnace, of course, it is much more advanced. However, if it weren't for this little bit of technological innovation, if there were no one like Shen Tu Er who devoted his whole life to technological exploration, how could he have future development and achievements?

"Shen Tu Zhishi, your method of carburizing steel is quite good. However, if you want to make an iron tool into a sword, you must heat it up, that is, use clean water to quench its sharpness, so that the sword created can be harder and sharper." Fu Ge said.

He only knew the history of iron tools, but only this little bit of fur was enough to show off his craftsmen in front of the Qin army.

Shentu was close to him and heard it clearly. Suddenly, he heard the professional term "temper" from Fu Ge, the iron-smashed "outsider", and Shentu was very surprised when he first heard the professional term "tempering".

After being surprised, Shentu began to show Fu Ge what he said just now to Shentu Er, who was only concerned about scheming. Then, Shentu Er turned his face and threw a suspicious look at Fu Ge, which meant: "Quantation—, is it really useful?"

"You two, go to the spring on the mountain to get a bucket of water." Shen Tu Da was also skeptical.

After a moment, the clear spring water was sent to the front from a wooden barrel. Shen Tu Er half-believed and half-doubtedly put a piece of red iron into the water, and a stream of blue smoke immediately emerged from the barrel.

When all the blue smoke was gone, Shen Tu Er took out the iron block from the bucket and forged it, it was obvious that his movements became much faster and more labor-saving. Shen Tu Er showed an excited look when he felt this change. His hands were slightly trembling, and he still didn't believe it, he put another piece of red iron block into the spring water. As a result, the same effect was produced during forging.

Shentu Er's iron-forging skills broke through the bottleneck because of Fu Ge's words. This made him not excited, who had been thinking hard for most of his life.

Although there were already magic weapons such as Gan Jiang and Mo Xie in the Spring and Autumn Period, the raw materials for creating magic weapons were not ordinary iron and stone, but the meteorite iron given by heaven. Meteorite iron is a rare and rare existence that cannot be mined on a large scale. Now, if Shentu Er can explore the skills of deep processing of iron and stone, perhaps one day in the future, it will really be able to forge a "divine weapon" that has been refined into steel in batches.

When the dream he was looking forward to was summoning in front of him, how could Shentu Er still control the surging waves in his heart?

"The craftsman is above, please accept the foolish disciple Shentu's second one!"

With a "thump", Shen Tu Er, who was extremely excited, trembled his knees and knelt down at Fu Ge. At this moment, his eyes were already dry and filled with tears. In order to create an iron weapon suitable for combat, Shen Tu Er paid too much. His family, who was imprisoned and was deprived of his enthronement as a slave; he was also cut off his arm and one look. This pain was buried in his heart for a long time, and today he was finally able to be released.

"Get up quickly, how can this be done?" Fu Ge said repeatedly, and hurriedly helped Shen Tu Er to raise Shen Tu Er. The God of Craftsman. This title is like an emperor in the craftsman. Fu Ge knew that he had just plagiarized the research results of his ancestors. He was ashamed that he could not have time to accept Shen Tu Er's kneeling with peace of mind.

"Shentu Da, after the task of building the horse stirrup and horse halberd is completed, you will be responsible for drawing the best craftsmen from all the troops to come here. They will directly obey the orders of the second craftsmen of Shentu and be responsible for the development and development of iron tools."

After comforting Shentu Er who was excited, Fu Ge ordered: "In addition, Li Lie, after you return to Xianyang, go and check which family of Shentu Worker Shentu is a slave. After finding out, you will immediately restore Fu Ji. Do you understand?"

A worker, right? It’s more than enough to be a worker with Shentu Er’s skills. He should be the most suitable candidate at present.

The innovation of quenching technology can bring a leap to iron smelting technology. On this basis, after softening, forging and other processes, iron tools may be used to make weapons. It seems that the production technology of Daqin iron tools is still in its infancy!

To go further, Fu Ge knew that the most urgent task was to solve the problem of hardness and toughness of iron tools, which required the temperature of the fire. At this point, the combustion point of charcoal could not be increased. The only thing that could be thought of was to use charcoal, which is the fuel called coal in later generations.
Chapter completed!