The crux of the problem is that this kind of 100 steelmaking is too wasteful of manpower.

If you want to make a good knife, you need to hammer it repeatedly, which is not only extremely inefficient, but also takes too much time.

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

In fact, if you think about it, that kind of really good knife and good sword are mostly the tools of the nobility, which are extremely rare and extremely expensive, as for the weapons used in the ordinary army, they are not so particular, do you really let the craftsmen spend ten days and a half months for a sword?

In this case, these swords cannot be in vain, Chen Kaizhi is determined to return to the furnace and refine, the so-called good horse with a good saddle, although the warrior camp Qiu Ba is scum, but a good knife, it still has to be matched.

This method of refining is time-consuming and labor-intensive, and the swords produced may not be good.

Then Chen Kaizhi built such a furnace, he could not toss a modern steelmaking plant like in the previous life, but he could learn from the crucible steelmaking method that appeared in 140 years.

At present, there are only two steelmaking methods that can be used, one is to use coal to make steel, because the temperature of coal is high, the speed of iron is fast, but the quality of steel is not complimentary. Second, charcoal is used to heat, but because the temperature is not enough, it is far less than iron.

The crucible steelmaking process doesn't really require much material, except that pig iron and scrap are packed into a crucible made of graphite and clay, and the furnace is melted by a flame, which is then poured into ingots. So that the impurity elements in this reaction process are almost not oxidized, so as to make better steel.

In the previous life, this kind of steel method was naturally eliminated for hundreds of years, but here, it can be regarded as a good way to solve the current problem.

Because the molten iron absorbs the carbon in the graphite after it melts, it produces high-carbon molten steel, which was superior to most metal materials of the time, even in the eighteenth century.

At this time, in this workshop, several craftsmen who Chen Kaizhi had bought a long time ago were already busy.

Before the large-scale craftsmen went up the mountain, these craftsmen were commanded by Chen Kaizhi and began to build a furnace, and they threw coal into the iron furnace, and at the same time added some accelerants, and at the same time, in the iron furnace with a heat wave, the pot made of graphite and clay, the pig iron was thrown directly into it.

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

A furnace of steel takes a lot of time to produce, but it saves a lot of effort compared to 100 steelmaking.

This kind of backward technology, there are a lot of them on Uncle Hei's continent, which belongs to the category of 'local steelmaking', which can be placed in the Great Chen Dynasty, and is almost described as a GEMING initiative.

The molten steel is smelted, and then the craftsmen begin to pour the mold, cool, and after some processing, a steel knife is formed.

These blacksmiths never seemed to have thought of such steelmaking, and they knew nothing about the building materials used, as well as the materials used in this iron furnace, and when they saw the first pot of steel smelted and poured into the mold, they couldn't help but be speechless.

This is almost impurity-free steel, and after cooling, the hardness and wear resistance are almost unparalleled.

So much so that when the knife was opened, a lot of strength was wasted.

The first knife was sent to Chen Kaizhi, this long knife exuding a metallic luster was in Chen Kaizhi's hand, and Chen Kaizhi could feel the weight of this high-carbon steel knife.

In this era, because the material of iron is not good, if the weapon is made too light and thin, the sword is very easy to break, and the matter of curling the blade happens from time to time, so most of the general swords are made very thick, but this knife seems straight and light and thin.

This Qiu Ba's name is Xu Jie, and he came to Chen Kaizhi with a very stupid and naïve look.

Chen Kai ordered him to take the knife issued by the military department, Xu Jie was stunned for a moment, and asked in a daze: "Captain, what is this going to do?" ”

He felt that something was wrong, so that he had a knife in his hand, and Chen Kaizhi also had a knife in his hand, this situation was ...... Something is wrong!

At this moment, the scene of watching Chen Kai kick a cow to death with one of his own eyes inexplicably appeared in his mind, and he suddenly felt that his legs were involuntarily a little weak, and he couldn't help but panic and said: "My lord, if you have something to say, 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 laughing, and had to comfort him: "It's nothing, just try the knife, don't be afraid, raise the knife and cut at me." ”

Xu Jie was still trembling, but he felt that things would not be so simple, after all, he was a Qiu Ba of the warrior camp, full of bad water, and the so-called pushing others by himself, so between the lightning and flint in his mind, he suddenly thought of countless possibilities.

But the more he thought about it, the more frightened he became, and he suddenly cried bitterly and said, "Captain...... I...... I was wrong, I shouldn't have secretly sprinkled NIAO on Su Chang's quilt...... I'm not a person, I'm not a thing! ”

"......" Chen Kaizhi took a deep breath and was dumbfounded.

Xu Jie threw the knife away, slapped himself with a snap, and said: "I lack morality, I'm really not a thing, when I took the literary exam, I took advantage of the captain's unpreparedness and copied Liu Wen's question...... I...... Captain, if you raise your noble hand, just spare me, I won't dare next time! ”

Chen Kaizhi is really ...... Half in the bag.

And Xu Jie was still trembling and hurriedly said: "Lord Captain, isn't there a saying called confession and leniency?" I want to expose, I want to expose, Yang Guang is not a good thing, the essay test plagiarism, they also have a share! ”

A shocking case of cheating in exams has surfaced.

Chen Kaizhi suddenly bared his teeth: "From today on, copy the three-character scripture five times a day, and if you can't copy it, you are not allowed to sleep!" ”

Xu Jie is like being amnesty, in fact, now, on this mountain, many Qiu Ba have a natural awe of Chen Kaizhi, Chen Kaizhi's grace and might, and he usually takes great care of Qiu Ba, but once it involves exercises and teaching, he will never tolerate it, and now he is just copying the Three Character Sutra, Xu Jie feels that this is the best result.

It's just that......

Chen Kaizhi jumped up and said, "Lift your knife." ”

Still coming?

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

Chen Kaizhi said: "Use all your strength to cut at me." ”

"This ......"

Chen Kaizhi said with a more serious face: "If you dare to spare any strength, let Mr. Wu deal with you by military law, and I will count three times." ”

Before he could start counting, Xu Jie let go and said loudly: "Captain, be careful!" ”

With that, he held the knife tightly with both hands and slashed at Chen Kaizhi fiercely.

The weight of this knife weighs more than a dozen catties, it is a standard long knife issued by the Ministry of War, ordinary people pick it up, it really takes some effort, fortunately, in this more than a month, Xu Jie goes up and down the mountain every day, and the physical strength of a few hours in the afternoon, coupled with rich nutrition, the physical strength has already multiplied unconsciously, and he suddenly feels that this knife is not heavy.

When he slashed towards Chen Kaizhi, the knife slashed through a shadow in mid-air, extremely fast.

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

Sonorous......

With a crisp sound, the two knives collided in midair.

Xu Jie suddenly felt that his mouth was bored, and his whole arm suddenly felt that it no longer belonged to him, and then, he felt a fierce lightness in his hand, and the knife in his hand, which was originally more than ten pounds, was broken into two parts, and the head of the knife snapped to the ground.

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

But seeing that the high-carbon knife in Chen Kaizhi's hand didn't seem to have much damage, looking at the stunned Xu Jie, Chen Kaizhi checked the high-carbon knife again, and was also surprised by the sharpness and hardness of the knife.

It is no wonder that this method of steelmaking, which is said to be able to kill all metals of the same era in the eighteenth century of the last century, is not a weapon made of high-carbon steel?

Glancing at Xu Jie, who was very surprised, Chen Kaizhi smiled slightly, put away the knife, and then said, "Okay, you can practice, and also, please come to Mr. Wu." ”

Xu Jie didn't dare to stay any longer, and hurriedly left.

It didn't take long for Wu Zixi to be called, and Chen Kaizhi directly handed over the broken knife and the knife in his hand to Wu Zixi to see.

Wu Zixi looked at the incision of the broken knife, and then played with the high-carbon knife for a while, and couldn't help but say: "This is really a divine weapon, it's really breathtaking, why, where did Kai Zhi find such a divine weapon?" ”

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

Wu Zixi gasped violently, he looked incredulous, and then shook his head: "When the old man was back then, he loved to collect swords, what kind of sword has never been seen, there are a lot of treasure knives that are bought with a lot of money, I am afraid that it may not be comparable to this knife, such a knife has to be forged, I am afraid that it is not easy, there is no craftsman for months, and a huge amount of money is spent......" He shook his head: "This is impossible." ”

Chen Kaizhi's smile became even brighter, and said: "Why do you need to deceive Mr., this knife can indeed be mass-produced, not only that, but now the output is not high, but it can produce six or seven in a day, Mr. thinks, how about using such a knife to assemble it for the warrior camp?" ”

Wu Zixi was stunned for a moment, he hurriedly picked up the knife in his hand and examined it, before he said: "If it can really be like this, it will be like a tiger with wings!" ”

Chen Kaizhi couldn't help but ask: "Is the warrior camp a tiger?" ”