The big girl smiled: "This is good, Sister Daiyu, let's learn steelmaking together, compare them with boys, although we girls are not as strong as them, we can still make good steel." ”

Chen Qingdai shook the girl's slightly rough hand, stood up, glared at Brother Hao'er, strode to the anvil, stretched out her hand, picked up the eight-pound sledgehammer, the bell bell, and hit the heavy anvil like a drum, only sparks splashed, and everyone's ears buzzed. Chen Qingdai put down the sledgehammer at this time, and calmly crossed her waist and looked at everyone: "With my strength, can I beat iron and steel?" She is a dragon girl, although she has sealed the spiritual power spell, but her muscles and bones are still different from ordinary people, wielding a sledgehammer is like waving a toothpick.

The stupid big man patted his thigh: "My god grandpa, where does this black girl get such great strength? Look at her thin arms, she is actually full of strange strength." Brother Hao, you can be compared to her!"

Brother Hao was not known for his strength, but the strength of the stupid big man was greater than him, and after Guo Dalu took the elixir, he far surpassed himself, and now, even Chen Qingdai surpassed him. Brother Hao had to be convinced, and arched his fist: "That, Sister Chen Qingdai, I said the wrong thing just now, and I will ask my sister for more advice on steelmaking in the future." ”

Chen Qingdai proudly raised her delicate chin: "It's easy to say." She glanced at Guo Dalu: "I said, surnamed Guo, are you watching a monkey? Hurry up, tell me all the good methods of steelmaking in your stomach." ”

Guo Dalu smiled, of course he has all kinds of good methods of steelmaking in his stomach, from frying steel, filling steel to soil steelmaking, blast furnace steelmaking, and even electroslag steelmaking.

However, this time, Guo Dalu didn't want to stuff his knowledge like a cramming, no matter how big or small, to everyone.

This may seem like an efficient and easy way to learn, but it's not a good way to learn.

If people want to obtain the power of merit, they must study and innovate on their own, Guo Dalu can guide them, but they can't do everything, otherwise, there will be no further development and progress in the future. What Guo Dalu needs is a group of creators with their own thoughts and ideas, not craftsmen who only know how to draw gourds step by step.

There are many similar craftsmen in the artisan camp of the Great Li Dynasty, they rely on the so-called unique skills handed down by their ancestors for hundreds or even thousands of years, but there is no improvement and innovation, let them use their own brains to think about whether the ancestors' methods are flawed, whether there can be better improvements, it is more difficult than killing them, they will attack them in groups, scold you for violating the laws of the ancestors, and tie you up and stuff you in the furnace to calm the anger of the ancestors.

They are a bunch of ignorant slaves, not new-minded laborers that Guo Dalu wants.

Today, Guo Dalu was going to take a class, a live class, he turned around and wrote a few big words with a lime pen on the blackboard that had been prepared long ago behind him: How is steel made.

Guo Dalu put down his pen and clapped his hands: "Li Jimin, you used to be a blacksmith with old qualifications in the army, tell me, how is this fine steel made?"

Li Jimin is Li Dayan's full name, but everyone often calls him a nickname, and he didn't react for a while Guo Dalu pointed out his name, and when Carpenter Zhou pushed his shoulder, he woke up and stood up in a panic: "I, what did I say? My skills are the most crude tricks, Brother Guo must have the immortal method of refining steel, you just tell us directly." ”

Guo Dalu said with a smile: "Li Jimin, only by learning from each other can we make progress from each other, come on, come on, you let it go." ”

Li Dayan glanced at the old village chief Zhu, the old village chief nodded slowly, and then he coughed: "The method of smelting iron in the army is actually not a big deal, it is the same as an ordinary workshop, but it is just to take ore, heat it with charcoal, melt it into molten iron, and then take it to the anvil and hammer it repeatedly with a sledgehammer to smelt wrought iron." Then, it is forged by the best craftsmen, and the more times it is refined, the better the steel mouth, and the so-called hundred refined steel is forged in this way. However, this forging work is too hard and tiring, it can generally be forged thirty times, and it is already a good steel, a real hundred refined steel--hehe, anyway, I haven't seen it. ”

Li Dayan said the method, sure enough, everyone is very familiar, there is a blacksmith shop in Yinxian County, see Tian'er saw the craftsman naked, around the stove, with a long-handled iron tong clamp with the iron dingding bell forging non-stop, sweat with sparks splashing, Brother Hao nodded: "That's right, that's what it looks like, I used to borrow Uncle Li's iron furnace and make arrows with molten iron myself." ”

Li Dayan smiled and said: "Brother Hao'er, your skills are sloppy, and the most you can do is pig iron, the arrows are not strong, and if you shoot on the armor, you will be shattered on the spot, and you can't hurt the enemy." ”

Brother Hao stuck out his tongue, he was an iron arrow made by an adult, although he had the heart to train into steel, but he didn't have time.

Guo Dalu asked with a smile: "Li Jimin, if you want to refine into fine steel, why do you have to forge it repeatedly?"

Li was stunned: "Why do you have to forge repeatedly? The method passed down by the ancestors is like this." ”

Guo Dalu sighed in his heart, look, this is the empiricism of ancient craftsmen, I know it but I don't know why.

He said patiently: "Li Jimin, you are also an old blacksmith, think about it yourself, what are the benefits of repeated forging?"

Li Dayan scratched his head vigorously with his fingers covered with burn scars, looked at Guo Dalu pitifully, looked at the people around him, and muttered: "Think about it, what do I have to think about, you let me strike iron, that's fine, but let me think about it, I, I can't say a word." ”

The big girl looked at Uncle Li, who was five big and three thick, and looked pitiful, a little unbearable, tilted her head and thought: "Uncle Li, I see that when you strike iron, every time you hammer down, it always splashes out on the sparks, and the sparks splash on the body will burn people, and when it falls to the ground, it is something like black scum." Is this forging going to knock out the scum?"

Li Dayan was stunned and slapped heavily: "Yes, the big girl is really smart! That's right! Slag, there are many slags in that pig iron, only when it is forged and cleaned, can good iron be smelted, and if the slag is left in the iron, it will hurt the iron very much." If a knife has such a slag in the blade, and it is hard hit with other knives, it is easy to break. ”

The more Li Dayan spoke, the smoother he became, and he slapped his thigh again: "There are also pores, repeated forging, you can remove the pores in the iron, there are too many pores, and it also hurts the blade." ”

Guo Dalu wrote the words scum and porosity on the blackboard, and said with a smile: "Uncle Li, look, you didn't summarize it very well." If you want to make good steel, you have to remove impurities and pores. ”

Li Dayan smirked, and the carpenter Zhou next to him also realized at this time, he stood up and said: "Every time Li Dayan smelts iron, he always asks me to help him burn charcoal, I think, is the quality of this iron related to charcoal?"

Brother Hao'er rolled his eyes and hurriedly said: "I think, it's not the relationship between the quality of the charcoal, but the relationship between the temperature!" Since Huang Manyuan used the thermometer to hatch the eggs, everyone had a more intuitive impression of the temperature, so Brother Hao immediately thought of the temperature, and he gestured: "I thought, is it that the higher the temperature, the more you can burn all the slag in the iron?"

Guo Dalu wrote the word temperature on the blackboard again, and continued to ask: "Think about it, everyone, what else has to do with steelmaking?"

Everyone is a burst of gossip, some people say that it is related to strength, the iron is a strong man, the greater the strength, the better the iron, but this conclusion was quickly refuted, making good steel is really so simple, then it is directly called Hercules steelmaking, but the masters who really understand steelmaking are all old men in their seventies and eighties, they only need to look at the furnace fire, they know whether they can produce good iron.

Some people also say that it is necessary to take all kinds of utensils to make good steel, and there have been people who have taken hair, black dog sacrifice furnaces, and even legends say that gods such as the cadre Mo Ye use people to sacrifice furnaces, and in the immortal family, in order to smelt magic weapons, there are people who take demon beast sacrifice furnaces.

There were different opinions, and the more they pulled it, the more they opened it, but they heard that a nameless fire was lit up by a thing next to it, especially when it heard Li Bo pointing his fingers and saying that if he stuffed a monster into the stove and burned it, he would definitely be able to produce good steel, and he was so angry that he breathed into his nose -- isn't it a monster? This nameless fire was the demon bull Dahei.

I saw Da Hei turn around, wave his tail, flick it heavily, and hit Li Bo in the face who was spitting, and finally it knew that Li Bo was the master's student, and he didn't use much strength, but he also splashed the cow dung on Li Bo's face, Li Bo was caught off guard and said angrily: "Da Hei, why are you hitting me?"

The big girl was clever, stroked Da Hei's head, and gave Li Bo a white look: "Who told you to shout about taking the monster sacrifice furnace, Da Hei is a thing that hurts it? This is really evil with the living sacrifice furnace, I don't approve of it." ”

Li Bo muttered: "If the monster is killed, it will be killed--" Da Hei mooed at him, spewing out a puff of air, which frightened Li Bo to shrink behind Brother Hao'er.

Brother Hao'er's eyes lit up, and he pointed to the shiny armor on Da Hei's body: "We are really confused! Isn't the armor on Da Hei's body just a high-grade steel? How is it refined?"

The big girl hugged Da Hei's neck: "It's so big black, tell me quickly, how the good steel on your body is made, you name it, I will shine on you with a treasure lamp every day." "The treasure lamp is the LED lamp, Guo Dalu is afraid that the lamp beads will be damaged after a long time, so he will take the LED lamp to irradiate the big black every three forks and five times, so that it can relieve its cravings.

The big black moo screamed all the time, but it was not enough to cultivate, and so far it was impossible to speak, Chen Qingdai said impatiently: "It's useless to ask this stupid cow, this thing eats iron and steel, it's all due to natal spells, but it can't say a word, just like a person eating and, does anyone know how this meal turns into?" (To be continued.) )