The key problem is that this kind of steelmaking is too wasteful of manpower.

If you want to make a good knife, you need to beat it repeatedly by a craftsman. Not only is it extremely efficient, but it also takes too much time.

The money, food and weapons allocated by the Ministry of War have been transported to the mountain. The only shortcoming is that the swords and swords in the workshop are really terrible.

Actually, if you think about it, those really good swords and good swords are mostly tools of nobles, which are extremely rare and extremely expensive. As for the weapons used in ordinary army, they are not so particular. Could it be that craftsmen really spend ten days and half a month on a sword?

Since this is the case, these swords cannot be wasted. Chen Kaizhi is determined to refine them again. The so-called good horses are paired with saddles. Although the eight people in the Warriors and the Great Warriors still have to match them with a good knife.

This method of refining 100 times takes time and effort, and the swords produced may not be considered good.

Then Chen Kaizhi built such a furnace. He could not have created a modern steel mill like he did in his previous life, but he could learn from the crucible steelmaking method that appeared in 1,400.

There are only two types of steelmaking methods that can be used now. One is to use coal to make steel. Because the temperature of coal is high and the iron is produced at a fast speed, the quality of the steel cannot be praised. Second, charcoal is used to heat it, but because the temperature is not enough, it is far less than that of iron.

In fact, this crucible steelmaking method requires not much material. It is just to load pig iron and scrap steel into a crucible made of graphite and clay, heat the melted furnace material with flame, and then pour the melted furnace material into steel ingots. Almost no impurities in the reaction process are oxidized, so that better steel is created.

This steel method was naturally eliminated for hundreds of years in the previous life, but here it is a good way to solve the current problems.

Because after the molten iron melts, it absorbs the carbon in the graphite, which produces high-carbon molten steel. This high-carbon molten steel was superior to most metal materials at that time even in the 18th century.

At this time, in this workshop, several craftsmen that Chen Kaizhi had bought had already begun to be busy.

Before the large-scale craftsmen went up the mountain, these craftsmen were commanded by Chen Kaizhi and began to grow the furnace. They threw coal into the iron furnace and added some combustion aids. At the same time, in this heat wave iron, the pot made of graphite and clay, was thrown into the pot made of graphite and clay.

Under the high temperature of coal, the temperature in the furnace began to rise sharply, and the pig iron in the graphite and clay began to melt into a golden liquid. The liquid floated slightly and then began to peel off from the impurities.

A furnace of steel costs a lot of time to produce, but compared to the ones that make steel, it saves a lot of effort.

There are many backward craftsmanship on Uncle Hei's continent, which belongs to the category of "local steelmaking". It can be used in the Great Chen Dynasty and is almost described as a creative and innovative approach.

The steel water was melted out, and then the craftsmen began to turn the mold and cool it down. After some treatment, a steel knife was formed.

These blacksmiths seemed to have never thought about such steelmaking. As for the building materials used and the materials used in this iron furnace, they knew nothing about it. When they saw the first pot of steel making and the mold was turned on, they couldn't help but be amazed.

This is a steel with almost no impurities. After cooling, its hardness and wear resistance are almost unparalleled.

So much so that when the knife was cut, it was useless.

The first knife was sent to Chen Kaizhi. The long sword with a metallic luster was in Chen Kaizhi's hands. Chen Kaizhi could feel the weight of this high-carbon steel knife.

In this era, because the iron material is not good, if the weapon is made too thin, the sword will be very easy to break, and the rolling blades happen often. Therefore, most ordinary swords are made very thick, but the sword seems straight and thin. Chen Kaizhi called Qiu Balai from the Warriors Camp.

Qiu Ba was named Xu Jie, and he came to Chen Kaizhi with a very stupid and naive look.

Chen Kaizhi ordered him to take the knife issued by the Ministry of War. Xu Jie was stunned for a moment and asked blankly: "Captain, what are you going to do?"

He felt something was wrong, so he asked him to hold a knife in his hand, and Chen Kaizhi also had a knife in his hand. This situation...is not right!

At this moment, the scene of watching Chen Kai kick a cow to death that day appeared inexplicably. He felt his legs become weak involuntarily, and he couldn't help but panic: "Sir, if you have something to say, I...I...I...I didn't do anything bad, I swear to God!"

Chen Kaizhi finally guessed a few points from his face, couldn't help but smile, and had to comfort him, "It's nothing, just try the knife. Don't be afraid, raise the knife and chop it at me."

Xu Jie was still trembling, but he felt that things would not be so simple. After all, he was Qiu Ba from the Warriors camp, full of bad water, so he said that he would push others by himself, so in a flash, he suddenly thought of countless possibilities.

But the more I thought about it, the more frightened he became. He suddenly cried and said, "Captain... I... I was wrong. I shouldn't have secretly scattered in Su Chang's quilt... I'm not a human, not a thing!"

"..." Chen Kaizhi took a deep breath, dumbfounded.

Xu Jie threw the knife suddenly, slapped himself in the face, and said, "I am unethical. I am really not a good person. When I was in the literature exam, I took advantage of the fact that the lieutenant was not prepared and copied Liu Wen's question... I... lieutenant, you are proud of your hand and let me go. I dare not do it next time!"

Chen Kaizhi is really... drunk.

Xu Jie still said tremblingly: "Sir, isn't there a saying that you should be lenient with confession? I want to expose it, I want to expose it, Yang Guang and others are not good things, they will also have a share of plagiarism in the literature test!"

A shocking case of cheating in the exam surfaced.

Chen Kaizhi suddenly grinned his teeth: "From today, I will copy the Three Character Classic five times a day, but I can't copy it out and I'm not allowed to sleep!"

Xu Jie was like being pardoned. In fact, on this mountain, many Qiu Bas have developed a natural awe for Chen Kaizhi. Chen Kaizhi is both kind and powerful, and he is very caring for Qiu Bas and others in daily life, but once it involves practice and teaching, it is absolutely unwilling tolerate it. Now that he is just copying the Three Character Classic, Xu Jie feels that this is the best result.

only……

Chen Kaizhi jumped up and said, "Pick up your knife."

Come again?

Xu Jie was stunned at first, but under Chen Kaizhi's stare, he had to lift the knife pitifully.

Chen Kaizhi said, "Take all your strength and chop at me."

"this……"

Chen Kaizhi said more serious and serious: "If you dare to keep some strength, you will let Mr. Wu deal with you with military law. I will count three times."

Before counting, Xu Jie took the initiative and shouted: "Captain, be careful!"

After saying that, he held the knife tightly with both hands and slashed at Chen Kaizhi hard.

The weight of this knife weighs more than ten pounds, which is a standard long sword issued by the Ministry of War. It takes some effort for ordinary people to pick it up. Fortunately, in the past month, Xu Jie went up and down the mountain every day, practiced his physical strength in the afternoon, and with the rich nutrition, his physical strength had already doubled a lot without realizing it. He suddenly felt that the knife was not heavy.

When he was slashing at Chen Kaizhi fiercely, the knife drew a shadow in the air, extremely fast.

Chen Kaizhi looked at his starting position and the trajectory of this knife in a real way, then raised the high-carbon knife in his hand, and a silver light flashed.

Sharp...

With a crisp sound, two knives collided in mid-air.

Xu Jie suddenly felt that his mouth was stuffy, and his whole arm suddenly felt that it no longer belonged to him. Then, he felt that his hand suddenly lightened. The knife in his hand, which was originally weighing more than ten pounds, broke into two pieces, and the head of the knife hit the ground.

Suddenly, Xu Jie's eyes straightened. The next moment, he felt a chill on his back. Although the knife in his hand was unbearable, it was quite thick and was directly cut off.

However, the high-carbon knife in Chen Kaizhi's hand seemed to be not damaged much. Looking at Xu Jie who was stunned, Chen Kaizhi checked the high-carbon knife and was also surprised at the sharpness and hardness of the knife.

No wonder this kind of steelmaking method is said to be able to kill all metals of the same era in the 18th century in the last world. Isn’t this weapon made of high-carbon steel a powerful weapon?

After looking at Xu Jie in surprise, Chen Kaizhi smiled slightly, put away the knife, and then said, "Okay, you can practice, and also, please come to Mr. Wu."

Xu Jie did not dare to stay, so he hurriedly left.

Not long after, Wu Zixi was called, and Chen Kaizhi directly handed the broken sword and the knife in his hand to Wu Zixi to see.

Wu Zixi looked at the cut of the broken knife, then played with the high-carbon knife for a while, and couldn't help but say, "This is really a magic weapon, it's really amazing. Why, where did Kaizhi find such a magic weapon?"

He only thought that Chen Kaizhi's sword was a magic weapon bought at a high price, but Chen Kaizhi smiled and said, "Mr. Wu, what if... this sword can be mass-produced?"

Wu Zixi took a sudden breath. He looked in disbelief and shook his head: "I loved collecting swords and swords the most back then. I have never seen any kind of swords. There are many precious swords that I bought with a lot of money, and I am afraid that it may not be as good as this sword. If you have to forge such a knife, it is not easy. It is not easy to spend a lot of money without the efforts of craftsmen for several months..." He shook his head: "This is impossible."

Chen Kaizhi's smile became even brighter and said, "Why do students need to deceive Mr. Meng? This knife can indeed be mass-produced. Not only that, the output is not high now, but it can produce six or seven pieces a day. The teacher thinks, how about using such a knife to assemble it to the Warriors camp?"

Wu Zixi was stunned. He hurriedly picked up the knife in his hand and looked at it. He said, "If this is true, it will be like a tiger with wings!"
Chapter completed!