No matter how much you think about it, it is difficult to get started, first of all, there is only charcoal on the mountain, the temperature of the furnace is not reached, and the copper can be barely strong, but there is nothing to be done about iron, it can only meet the early sword casting process, and I am afraid that the steel clamping in the later stage can not be bonded. Pen fun and pavilion www.biquge.info

In order to raise the temperature, Yu Zhou repeatedly made more than ten stoves alone, and it took more than a month, during which Zhong Liyi and them came back four or five times, and even the blacksmith Han who was hundreds of miles away knew his plan.

The old guy is very realistic, there is only one requirement, you can strike iron, you can't waste more than ten iron ingots, whether you are successful or not CD is a hammer deal, you should give him a practice.

Zhongli is not optimistic about Yu Zhou's wishful thinking, an eight or nine-year-old doll can do things, where do they put their faces?

With the advice of the blacksmith Han, Yu Zhou was more careful, so as to complete the construction in the shortest possible time, because every iron ingot was the brainchild of his father-in-law and could not be wasted.

During the first trial, Zhong Liyi happened to be there, and he even took advantage of the rest to help Yu Zhou pull the bellows for two days, but he soon failed, not because there was a problem with iron smelting, but because Yu Zhou himself was not able to do it.

The lengthy and cumbersome process is not something that his small body can bear, the last time it was done with the Han blacksmith, and making toughness and building steel are two different things, building steel and forging a sword are two different things, and the difficulty has increased exponentially.

Zhong Liyi set off with a strange smile, even Lao Cao Song Zhi and them were not optimistic, after a good rest for two days, Yu Zhou felt that it was better to lower the goal a little, the previous thinking had entered a dead end, such a complicated process was used to cast the sword of the world's first grade, and it was strange that a child could complete it alone!

Forget it, don't clamp steel, don't fold and forge, just ordinary forging, eat a mouthful, walk step by step, it is important to get pure steel first, just use steel to shape a shape, and the iron created is much stronger than pig iron.

After making up his mind, Yu Zhou started again, he decided to start with small pieces first, it was relatively simple to adjust, and he practiced more and gradually accumulated experience.

The fist-sized iron ingot slowly turned red, Yu Zhou carefully observed the brightness of the iron, and when the furnace temperature could no longer rise, he began to hammer and shape, and when the iron turned into a long strip, the rest was left to time.

This method coincides with the already skilled cast iron softening technology of the Warring States, which is to heat the iron at high temperature for a long time to change the material properties in it, and the advantage of doing this is that Yu Zhou's labor is greatly reduced, because the iron bar is smaller, he can even free up space to fold again.

Correspondingly, the demand for charcoal is greater, but fortunately, although Cao Song and the others are dissatisfied, they have always supported him.

This experiment was very successful, Yu Zhou wrote down each process in detail, no matter how good his memory is, it is not as good as a bad pen, what kind of temperature burns for how long, how long the hardness of iron has changed, he has recorded them one by one in simplified Chinese.

It was more than half a month, the small dagger was finally baked, the dark blade was not eye-catching, he took out an ant-nose coin, waved his hand and chopped it, it was not bad, although the money was not cut in half, but it also left a deep mark, and the knife edge was not damaged at all.

Yu Zhou is already very content, very grateful for his love for military thorns in his previous life, it is this enthusiasm that makes him familiar with the heat treatment of metals, what martensite austenitic ferrite was not studied back then.

Coincidentally, this time the clock is back from the oven, and the strange-looking short dagger is very out of the eyes of this great master.

"Sub-period, striking iron is not mud, just having a shape is enough, can you pierce the sheepskin with this knife?"

"You stay away, this is a murder weapon, I tell you, don't look down on this, don't believe in finding a goat to try, as long as you see blood, you won't survive."

After being busy for a long time and having no time to take care of himself, Yu Zhou's hands are now full of blood blisters, his face is gray and flowery, the two little girls are laughing at him, Zhong Liyi, this guy is actually blindly comparing there, what should I do if I hurt someone.

"Hey, you're really serious, it just so happens that I brought back a wild boar this time, how about it, dare not bet, the wild boar skin is much thicker than the sheepskin, don't say that I bullied you, if you can't even stab this, then you can't hurt anyone."

"Bet on what? What do you have to lose to me. ”

Yu Zhou is still very confident, with his strength, he can slash the copper coin, if Zhong Liyi comes to call, it will be a wild boar.

"Anyway, I see that you are uncomfortable in the mountains, if you lose, then go with me to mine copper and smelt, just for a month."

It's hard to do now, Yu Zhou really wants to go and see that mine, but it's hard to lose now, let's listen to Zhongli's bet first.

"Then if the wild boar is killed after a knife, what can you lose to me?"

Zhong Liyi glanced at Chen Ying and said, "Then I will also be sent by you within a month, and Brother Chen has a neighbor who is quite talented and wants to learn the art of forging from your father-in-law, if you lose, you must not stop it." ”

I really can't stand him, a tough man actually learns people's tricks, and he is so shallow, doesn't he look down on Yu Zhou, besides, Yu Zhou is now short of people, if that guy can get into the eyes of the old man Han, won't he have a helper in the future? How could you disagree!

I thought so in my heart, but it meant something else: "Oh? Which big brother has this determination to make you Zhongli not hesitate to set an example. ”

After getting along for a long time, Zhong Liyi did not feel the slightest shame of being seen through by a child: "Speaking of which, you are also familiar with it, that brother's surname is Li Mingcunzhuang, do you still remember the battle of Guangling?" ”

Hearing him say this, Yu Zhou remembered that at that time, Wei Zhe killed more than ten sergeants, and a straightforward square-faced man still questioned, it was really bold, and the three elders called him to be strong at that time.

This person has the strength to do it, and he is extremely filial, every time he comes back, the first thing he does is to say hello to his mother at home, with such a guy to help, Old Man Han must be a lot relieved.

"As long as my father-in-law agrees, I should do it regardless of whether I win or lose, and if you lose, you can also write it down for the time being, and when my father-in-law is free, I will settle it with you."

"Good! Deal! ”

Zhong Liyi shouted, and everyone brought a tightly tied wild boar, to say the least, two hundred catties, which was constantly struggling and writhing.

Yu Zhou turned around and ran into the house.

"Why are you going?!"

"Nonsense, you slaughtered it, I can't find a house to put pig's blood......"

At this time, Zhong Liyi began to play with the dagger again, and accidentally opened a gap in his hand, and quickly put his finger in his mouth and agreed.

"Hurry up, I'm all set, let's do it!"

"Ahem, sub-period, let's discuss, you just said that this dagger can kill with one sword, I don't know if it's true or not?"

Yu Zhou looked at Zhongli with disdain: "Even Ji Bu knows that he is a promise, you are not as good as him?" ”

was said to be inferior to a child, and it was better to be dead, Zhong Liyi stubbornly compared it to the pig.

Generally, killing pigs is to start from the neck and insert it straight into the chest, but the knife is not long enough, seeing that Zhong Liyi only picks the solid place, Yu Zhou does not say anything, and waits to see the result.

"Whew-"

The boar's scream was piercing, and after a single stab, it left only a cross-shaped wound, and the blood flowed like a river bursting its banks.

Zhongli held the dagger until the wailing faded away, and the pig's blood did not stop flowing, he swallowed hard, and said in Yu Zhou's tone: "! ”